Sony DNW-A22 Maintenance Manual
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Sony DNW-A22 Maintenance Manual

Digital videocassette player
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DIGITAL VIDEOCASSETTE PLAYER
DNW-A22/A22P
MAINTENANCE MANUAL
Part 1
1st Edition (Revised 5)
Serial No. 10001 and Higher: DNW-A22
Serial No. 10001 and Higher: DNW-A22P
Table of Contents
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Summary of Contents for Sony DNW-A22

  • Page 1 DIGITAL VIDEOCASSETTE PLAYER DNW-A22/A22P MAINTENANCE MANUAL Part 1 1st Edition (Revised 5) Serial No. 10001 and Higher: DNW-A22 Serial No. 10001 and Higher: DNW-A22P...
  • Page 2 4. Prevention against achieving hazardous condition due to uneven mechanical loading When this product is installed in a rack, please make sure that the rack does not achieve hazardous condition due to uneven mechanical loading. DNW-A22/A22P...

  • Page 3: Table Of Contents

    Removing/Reattaching Cassette Compartment........... 2-6 2-6. Removing/Reattaching Lower Control Panel Assembly ......2-7 2-7. Circuit Function ..................2-8 2-8. Location of Main Parts ................2-10 2-8-1. Printed Circuit Boards and Power Supply Unit Location ..2-10 2-8-2. Main Mechanical Parts Location ..........2-13 DNW-A22/A22P...
  • Page 4 RF ADJUST Mode (A1) ............4-43 4-2-8. AUDIO/VIDEO ADJUST Mode (A2) ........4-51 4-2-9. BETACAM PB ADJUST Mode (A3) ........4-53 4-3. Error Logger Display Mode (M2) ............. 4-56 4-3-1. Outline ..................4-56 4-3-2. Display Mode ................4-57 4-3-3. Setting Mode ................4-59 DNW-A22/A22P...
  • Page 5 6-5. SS-63 Board Replacement ................ 6-75 6-5-1. Setting of DIP Switches ............6-75 6-5-2. Error Logging Data Clear and Calendar/Clock Setting ... 6-76 6-6. TBC-23 Board Replacement ..............6-78 6-6-1. Replacement Procedure ............6-78 6-6-2. Electrical Adjustments ............. 6-79 DNW-A22/A22P...
  • Page 6 Exploded Views ..................7-2 7-3. Plug-in Boards ..................... 7-4 7-4. Packing Materials and Supplied Accessories ..........7-5 7-5. Fixtures List ....................7-5 Appendix A Setting Check Sheet Appendix B Block Diagrams INDEX ........................B-1 OVERALL (1/2) ....................B-1 OVERALL (2/2) ....................B-2 DNW-A22/A22P...

  • Page 7: Manual Structure

    Purpose of this manual This manual is the maintenance manual part1 of the digital videocassette player DNW-A22/A22P. This manual is intended for use by trained system and service engineers, and provides the information that is required to install, maintenance information, and the information for service such as replacement of plug-in boards.

  • Page 8: Related Manuals

    Related manuals Besides this “maintenance manual part 1”, the following manuals are available for digital videocassette player DNW-A22/A22P. If these manuals are required, please contact your local Sony Sales Office/Service Center. • Operation Manual (Supplied with this unit.) This manual is necessary for application and operation (and installation) of this unit.

  • Page 9: Installation

    1-8. Signal Inputs and Outputs *Initial setup 1-9. Switch and Shorting Plug Settings on PC Boards 1-10. Switching Search Dial Mode *Operation check If an error message appears on the time data display area, refer to “Section 3. Error Message”. DNW-A22/A22P...

  • Page 10: Operating Conditions

    This unit does not come with a power cord. Good air circulation is essential to prevent internal heat To get a power cord, please contact your local Sony Sales build-up. Place the unit in location with sufficient air Office/Service Center.

  • Page 11: Installation Space

    Mass : 34 kg (454) 45.5 (47.1) 512.8 577(Maximum traveling distance) 415.9 15.9 12.7 31.5 123.8 263.5 457.5 18.3 47.1 Unit : mm n Remove the feet when rack mounting. Dimensions when Rack-Mounting DNW-A22/A22P...

  • Page 12: Rack Mounting

    BKFC-53/2. PS4 x 14 Keep these screws and the feet. When operating the unit after demounting it from the rack, be sure to reattach the feet. Tightening torque: 98 x 10 N . m {10 kgf . cm} DNW-A22/A22P...
  • Page 13 (PSW4 x 16). B4 x 6 Tightening torque: 120 x 10 N . m {12.2 kgf . cm} PSW4 x 16 Rack angle Inner rail PSW4 X 16 B4 x 6 Rack angle PSW4 x 16 DNW-A22/A22P...
  • Page 14 14. Fully tighten the eight screws (B4 x 8) fixing the four rail brackets. Tightening torque: 120 x 10 N . m {12.2 kgf . cm} Rack Outer rail Rail bracket 50 to 55 mm B4 x 8 Rack angle DNW-A22/A22P...
  • Page 15 Intermediate rails Width : A = A' = 416 mm 16. To fix the two outer rails to the rack, fully tighten the eight loosely fitted hexagon socket head cap screws in step 12 using the L-shaped hexagon wrench. DNW-A22/A22P...
  • Page 16 20. While pressing each stopper of inner rails on both Ornamental washer sides, slowly push the unit into the rack. Be careful not to catch your finger or hand in rack mount rail. RK5 x 14 Stopper RK5 x 14 Ornamental washer Intermediate rail Stopper Inner rail DNW-A22/A22P...

  • Page 17: Matching Connectors And Cables

    1-7. Matching Connectors and Cables When external cables are connected to the connector of this unit, the hardware listed below (or the equivalents) must be used. Panel indication Matching connector (cable) Sony part No. VIDEO OUTPUT BNC 75Z, MALE MONITOR OUTPUT XLR 3P, FEMALE...

  • Page 18: Signal Inputs And Outputs

    VIDEO : RCA jack, 1.0 V p-p, 75 Z, sync negative (for character superimpose) : 5 V AUDIO : RCA jack, _10 dBu, high impedance, unbalance PHONE JM-60 stereo phone jack (Upper control panel) Analog audio Up to _12 dBu (8 Z, load), unbalance 1-10 DNW-A22/A22P...
  • Page 19 RTS ; Request to Send (Output) CTS ; Clear to Send (Input) DSR ; Data Set Ready (Input) SG ; Signal Ground DCD ; Data Carrier Detect (Input) 9 to 19 DTR ; Data Terminal Ready (Output) 21 to 25 1-11 DNW-A22/A22P...

  • Page 20: Switch And Shorting Plug Setting On Pc Boards

    By coupling with RV600, adjust the CH2 head amp high frequency response. This switch is used in audio head dumping adjustment. When the unit is shipped, this switch is set to the position based on the adjustment condition. 1-12 DNW-A22/A22P...
  • Page 21 When the variable level is selected, the level is adjusted with the PHONE level control knob. Channel Ref. No. Display Monitor output level [ ]: Factory setting [Fixed] Variable COR301 UNITY(L) Short Open VAR(L) Open Short COR401 UNITY(R) Short Open VAR(R) Open Short 1-13 DNW-A22/A22P...
  • Page 22 To adjust: Select the TEST position. Connect the input signal to TP303. (GND to E302) S302 ————— Factory use NORMAL POSITION S501 ————— Factory use S901 1 to 4 ————— Factory use OFF (OPEN) 1-14 DNW-A22/A22P...

  • Page 23: Board

    VIDEO PHASE Select whether to use VIDEO PHASE VR or not. OFF (OPEN) OFF (OPEN) : VIDEO PHASE VR (RV202) disabled ON (CLOSE) : VIDEO PHASE VR (RV202) enabled S500 1 to 4 ————— Factory use OFF (OPEN) 1-15 DNW-A22/A22P...
  • Page 24 Factory use OPEN COR 102 ————— Factory use OPEN COR 103 ————— Factory use SHORT COR 104 ————— Factory use SHORT : Board number 1-661-127-13 only. : COR103 and 104 have no plug, but they are shorted by patterns. 1-16 DNW-A22/A22P...
  • Page 25 5: ON (CLOSE) 6: OFF (OPEN) J/SY OFF (OPEN): Japan model ON (CLOSE) ON (CLOSE): Except Japan model 525/625 OFF (OPEN): 525/60 model DNW-A22: OFF (OPEN) ON (CLOSE): 625/50 model DNW-A22P: ON (CLOSE) S1900 1 to 8 ————— Factory use (OPEN) 1-17...

  • Page 26: Switching Search Dial Mode

    Back View Back View Screw Portion A Screw Search dial Mode selection plate Portion B Mode selection plate Search dial shaft Round hole The shaft is seen. 1-18 DNW-A22/A22P...

  • Page 27: Service Overview

    The circuit breaker of a primary circuit is mounted on the power panel of this unit. When an overcurrent flows in the primary circuit, the breaker operates and the button protrudes. If the breaker operates, eliminate the cause for which an overcurrent flows, then push the button. DNW-A22/A22P...

  • Page 28: Removing/Reattaching Cabinet

    B4 x 6 B3 x 6 B3 x 6 B4 x 6 Right side panel Left side panel B4 x 6 Bottom plate B3 x 6 B4 x 6 B3 x 6 B4 x 6 B4 x 6 B4 x 6 DNW-A22/A22P...

  • Page 29: Control Panels

    1. Remove the upper lid. (Refer to Section 2-3-1.) 2. Remove the one screw each on the left and right sides. 3. Pull the lower control panel forward, then turn it upward. (Operation side up) Hook BVTT3 x 6 Upper control panel Hook DNW-A22/A22P...

  • Page 30: Connector Panel Assembly

    2. Being careful not to stretch the harnesses, remove the connector panel assembly as shown in the figure. Lugs Lower control panel BVTT3 x 6 When reattaching, install in the reverse order of removal. Connector panel assembly When reattaching, install in the reverse order of removal. DNW-A22/A22P...

  • Page 31: Power Supply Panel Assembly

    When reattaching, install in the reverse order of removal. Be careful not to pinch the harnesses under the plate MD To fix the ground wire, put the washer between the assembly in reattaching. terminal of ground wire and screw. DNW-A22/A22P...

  • Page 32: Removing/Reattaching Cassette Compartment

    (If it is put with the cassette lid down, the flexible on the CL-29 board. Keep the harness out of the way card wire/board might be damaged.) of the removal. B3 x 6 Cassette compartment Cassette compartment (with stopper) bracket assembly B3 x 6 (with stopper) Harness CN930 DNW-A22/A22P...

  • Page 33: Removing/Reattaching Lower Control Panel Assembly

    10. Reattach the cassette compartment bracket assembly. 11. Reattach the plate MD assembly and the upper lid. Lower control panel B3 x 12 assembly Claws Notches 7. Connect the flat cable to the connector (CN145). 8. Return the lower control panel to 0d, then store. DNW-A22/A22P...

  • Page 34: Circuit Function

    Panel function (Switches, LEDs) control, CAV control level conversion VR-223D Phone level VRs, Phone connector VR-207 Audio PB level SWC-30F Upper control panel function (Switches, LEDs) SWC-31F Sub control panel function KY-364F Lower control panel function PTC-69 Search dial sensor, Dial solenoid connection DNW-A22/A22P...
  • Page 35 Motherboard, MB-648F Motherboard, RS-232C connector panel CP-279N Connector board (Analog video) with output buffer CP-280N Connector board (MONITOR output) CP-287N Connector board (RF adaptor) with P-S Power AC-169 AC connector board with Breaker PS unit Switching regulator (PS=Power supply) DNW-A22/A22P...

  • Page 36: Location Of Main Parts

    SE-344 ..... @-@[ SS-63 ....... 9 SWC-30 ....#= SWC-31 ....#[ TBC-23 ....6 TBC-24 ....5 TC-96 ......!= TR-78 ......@\ TR-79 ......!, VPR-17 ....3 VR-207 ....#- VR-223 ....#/ Power supply unit ..$- < Bottom View > 2-10 DNW-A22/A22P...
  • Page 37 2-8. Location of Main Parts < Front View > < Rear View > 2-11 DNW-A22/A22P...
  • Page 38 2-8. Location of Main Parts < Top View of Mechanical Deck > < Top View of Cassette Compartment > 2-12 DNW-A22/A22P...

  • Page 39: Main Mechanical Parts Location

    @= TG-0 tape guide 0 TG-10 tape guide @[ Capstan shaft !- Pinch roller @] Cleaning roller block != T reel table @\ Pinch press block ![ T brake assembly @; TG-4 tape guide @' Threading gear block 2-13 DNW-A22/A22P...

  • Page 40: Function And Location Of Sensors

    2-9. Function and Location of Sensors 2-9. Function and Location of Sensors !/ != < Top View of Mechanical Deck > Upper Lower < Top View of Cassette Compartment > 2-14 DNW-A22/A22P...
  • Page 41 This sensor detects the tape thickness detection tab of cassette compartment by the combination of the a cassette. detection state of the two sensors and a cassette-in This sensor is used to discriminate the thickness of the sensor. tape stored in a cassette. 2-15 DNW-A22/A22P...

  • Page 42: System Of Cassette

    != Reel hub diameter detection tab 5 S cassette REC inhibit plug (for metal particle tape) ![ S cassette digital REC inhibit tab 6 L cassette REC inhibit plug !] L cassette digital REC inhibit tab !\ L cassette analog REC inhibit hole 2-16 DNW-A22/A22P...
  • Page 43 ——— Digital Betacam Unusable Except the above class Unusable REC inhibit plugs (The REC inhibit plug is not detected since this unit is player.) Back side of the cassette Same surface Plug is down Recording Rossiblle impossible recording 2-17 DNW-A22/A22P...

  • Page 44: Function Of Leds On Circuit Boards

    Lights in good communications between SYS2 CPU and SYS1 CPU. Turn off in bad communications between SYS2 CPU and SYS1 CPU. D1905 SY2 ERR Lights when SYS2 CPU does not operate normally. Blinks in bad communications between SYS2 CPU and other CPU (SYS1, SV, etc.). 2-18 DNW-A22/A22P...
  • Page 45 The blinking interval is inverted when the DM-89 board is in the adjustment mode: when switch S901-1 on DM-89 board is set to ON. TBC-23 board LED No. Name Color Description Normal state D200 Amber Lights once a second when TBC microcomputer is under normal condition. Blinks 2-19 DNW-A22/A22P...

  • Page 46: Taking Out The Cassette In Tape Slacking

    5. Pull the ME lever toward the front panel side to take up the tape inside the cassette. Wheel M gear Threading motor ME lever Cassette compartment Down motor 6. To wind up the tape, repeat steps 4 and 5. 2-20 DNW-A22/A22P...

  • Page 47: Pulling Out/Insertion Of Plug-In Board

    . To reattach the board retainer, tighten the screw after disconnect the connected harness from its board. inserting the protrusion of the board retainer into the square hole of chassis. TBC-23 board : CN1 (E-1) ..... 14P White TBC-24 board : CN1 (E-1) ..... 14P White 2-21 DNW-A22/A22P...

  • Page 48: Fixtures And Adjustment Equipment List

    Cleaning 7-432-114-11 Locking compound (200 g) — Inhibits loosening of screws 7-661-018-18 Diamond oil NT-68 (50 ml) — 7-651-000-10 Sony grease SGL-601 (50 g) — 7-700-736-01 L-shaped hexagonal wrench (d=1.27 mm) — 7-700-736-05 L-shaped hexagonal wrench (d=1.5 mm) — 7-700-736-06 L-shaped hexagonal wrench (d=0.89 mm)
  • Page 49 2-14. Fixtures and Adjustment Equipment List 2-23 DNW-A22/A22P...

  • Page 50: Equipment For Adjustment

    For measuring distortion, levels (dBm), and dB ratio Audio level meter Hewlett-Packard HP3400A Frequency counter Advantest TR5821AK Digital voltmeter Advantest TR6845 Network analyzer Anritsu MS-420B Terminator — 75-ohm, BNC type BNC T adapter — 75-ohm Tension meter Tentel T2-H7-UMC For measuring tape tension 2-24 DNW-A22/A22P...

  • Page 51: Isr

    This unit corresponds to ISR (Interactive Status Reporting) function. When this unit is connected to the personal computer which activates Sony’s ISR application software, the status of this unit or the contents of a generated error can be intensively monitored and managed on the monitor screen of a personal computer.

  • Page 52: Information Of Connecting Cable

    Use the RS-232C cross cable. RS-232C DB25 DB25 Signal ( 3 ) ( 2 ) ( 7 ) ( 8 ) ( 6 ) ( 5 ) ( 1 ) ( 4 ) ( ); Pin number for 9-pin connector 2-26 DNW-A22/A22P...
  • Page 53 The connection varies depend on the terminal server. Be sure to check the pin assignment of terminal server side, and follow it. Terminal Server RS-232C RJ12 (Modular type) DB25 3. For connecting to a personal computer via modem Use the RS-232C straight cable. MODEM RS-232C DB25 DB25 2-27 DNW-A22/A22P...

  • Page 54: Setup Menu (F-Series)

    MENU button JOG button SET button SHUTTLE CONDITION VI TC UB DF LTC VITC DOLBY TCG TOTAL REMAIN 525 625 REVERSE FORWARD BETACAM MENU CTL/TC/UB RESET ALARM SERVO STANDBY EJECT PLAY F FWD STOP PLAY button Search dial 2-28 DNW-A22/A22P...

  • Page 55: F-Series Items

    “0 M” is set, the pinch is turned off as soon as the PB operation is completed. 15 M 20 M When the pinch is turned off, it takes a few seconds to output image and sound signals during PB operation of the next time. 2-29 DNW-A22/A22P...

  • Page 57: Error Message

    8. 8 . 8 BETACAM MENU CTL/TC/UB RESET ALARM SERVO STANDBY EJECT PLAY F FWD STOP ALARM indicator Error Message/Code Display Area and ALARM Indicator CHARACTER DOLBY OFF ON OFF ON CHARACTER switch : ON CHARACTER Switch on Sub Control Panel DNW-A22/A22P...
  • Page 58 Also, if multiple errors occur in error group, the priority level of each group display are as follows: VTR: 97, 02, 03, 04, 05, 07, 06, 01, 09, 08, 0A, 10, 11, 12, 13, 14, 20, 21, 22, 23 OTHERS: 92, 96, 98, 99 DNW-A22/A22P...

  • Page 59: Details Of Error Messages

    The messages on the time data display area differ from the messages which are superimposed on the video monitor in some items. In this section, each message indicates as following example. Ex.: ERROR-23 THREADING RING POSITION ERROR (THRED RING SENS) Message on time data display area Message superimposed on video monitor DNW-A22/A22P...
  • Page 60 . Take-up reel table height adjustment defect Protecting operation: Enters the protection mode. Be sure to take out the cassette manually (refer to Section 2-12). Do not turn the power on again without taking out the cassette. This may damage the tape. DNW-A22/A22P...
  • Page 61 Be sure to take out the cassette manually (refer to Section 2-12). Do not turn on the power again without taking out the cassette. This may damage the tape. DNW-A22/A22P...
  • Page 62 . Tape abnormality (The winding state has a problem.) Protecting operation: Enters the protection mode. Be sure to take out the cassette manually (refer to Section 2-12). Do not turn on the power again without taking out the cassette. This may damage the tape. DNW-A22/A22P...
  • Page 63 . Supply or take-up reel motor drive circuit (DR-315 board) trouble . Servo adjustment defect on supply or take-up reel . Supply or take-up reel brake trouble . Supply or take-up reel brake solenoid drive circuit (MS-50 board) trouble . Harness disconnection Protecting operation: Ejects the cassette. DNW-A22/A22P...
  • Page 64 . Capstan motor FG waveform shaper circuit (MS-50 board) trouble . Capstan FG duty adjustment defect Protecting operations: Ejects the cassette for No. 1 in detecting conditions. Stops the tape transport and enters the rest state for No. 2 and No. 3 in detecting conditions. DNW-A22/A22P...
  • Page 65 . Threading motor drive circuit (DR-315 board) trouble . Threading mechanism trouble Protecting operations: Ejects the cassette during cassette insertion or ejection. Enters the protection mode during tape threading/unthreading. Stops the tape transport and enters the rest state in cases except the above. DNW-A22/A22P...
  • Page 66 Prohibits the cleaning roller operation. Stops the tape transport and enters the rest state in the unthread end state when the tape is threaded in states other than PLAY mode. Prohibits the tape threading. Prohibits the cassette insertion. 3-10 DNW-A22/A22P...
  • Page 67 During tape transport in forward direction, the FF mode can be entered only while the total tape quantity is observed. Stops the tape transport and enters the rest state during tape transport except the above. 3-11 DNW-A22/A22P...
  • Page 68 During the tape transport in reverse direction, the REW mode can be entered only while the total tape quantity is observed. Stops the tape transport and enters the rest state during tape transport except the above. 3-12 DNW-A22/A22P...
  • Page 69 For mechanical deck Always rotating IC115/SS-63 board IC500/SS-63 board Q1 and Q2/MB-648 board For power supply unit Always rotating IC115/SS-63 board None None * : DNW-A22 Serial numbers 10001 to 11430 only DNW-A22P Serial numbers 10001 to 11080 only 3-13 DNW-A22/A22P...
  • Page 70 . Reel position sensor (PTC-71 board) trouble (S position sensor or L position sensor) . Reel position input port (IC1 on MS-50 board) trouble Protecting operation: Stops the movement of the reel table and ejects the cassette during cassette loading. 3-14 DNW-A22/A22P...
  • Page 71 . Thread end or unthread end input port (IC1 on MS-50 board) trouble Protecting operations: Ejects the cassette during cassette insertion or ejection. Enters the protection mode during tape threading/unthreading. Stops the tape transport and enters the rest state in cases except the above. 3-15 DNW-A22/A22P...
  • Page 72 . MPU control interface circuit (IC1400 through 1402 on SS-63 board) trouble . FP-91 board’s MPU (IC6) trouble Protecting operations: When the sub error message is “SY2”, enters the protection mode. When it is except above, displays only this error. 3-16 DNW-A22/A22P...
  • Page 73 When the error occurs in ID code data, resets the data to 00 00 00 00. When the error occurs at the calendar/clock function, resets the date and time data to ’96 11 01 00 00 00 (= Year, Month, Day, Hour, Minute, Second). 3-17 DNW-A22/A22P...
  • Page 74 DM: When the error occurs in an NV-RAM (IC908 on DM-89 board) during the data write or read. TBC: When the error occurs in an NV-RAM (IC200 on TBC-23 board) during the data write or read. Possible causes: Trouble of an NV-RAM indicated by sub error message Protecting operation: None 3-18 DNW-A22/A22P...
  • Page 75 TBC: . MPU control interface circuit (IC2102, 2107, 2108 on SS-63 board) trouble . TBC-23 board’s MPU (IC202) trouble Protecting operations: When the sub error message is “SV”, enters the protection mode. When it is except above, displays only this error. 3-19 DNW-A22/A22P...

  • Page 77: Maintenance Mode

    This mode is used to display the record of errors (error logging) that occur in this unit. ERROR LOGGER (001/003) 001 REEL TROUBLE-1 002 TAPE TENSION ERROR 003 INTERNAL I/F ERROR ------------------------ TAPE ERROR WARNING CONDITION The display on the left is one of the displayed examples. '96 07 03 09:23:00 DNW-A22/A22P...
  • Page 78 In a time data display area, the display is replaced and the specified item blinks. (“JOG DIAL” is displayed on the video monitor.) The data value or setting can be changed when the search dial is turned while pressing the 7 JOG button. DNW-A22/A22P...
  • Page 79 SS-63 board 0S1100-2 9S1101 Location of Switches on SS-63 Board Remove the upper lid referring to Section 2-3-1 when operating the switches on the SS-63 board. Change the setting of DIP switch S1100 with the power switch set to OFF. DNW-A22/A22P...
  • Page 80 (1) Press the 2 MENU button several times to display the mode screen on the video monitor. The selected mode No. and title are displayed in a time counter. (2) Press the 2 MENU button again to terminate the maintenance mode. DNW-A22/A22P...
  • Page 81 C0 -SERV C1 -RF C Display the mode (menu) which you wish to open O CHECK HECK and press the SET button. The mode (menu) is then opened. Turn search dial Example in Time Data Display Area DNW-A22/A22P...

  • Page 82: Tape Maintenance Mode (M0)

    4-2. TAPE Maintenance Mode (M0) 4-2-1. Overviews 4-2. TAPE Maintenance Mode (M0) 4-2-1. Overviews The TAPE maintenance mode is used for the maintenance and check. Nine submodes are available for DNW-A22/A22P. TAPE MAINTENANCE MODE C0 : SERVO CHECK C1 :...
  • Page 83 For more details, refer to Section 4-2-4 (on page 4-30). BETACAM PB CHECK MODE C30:CHANNEL CONDITION Title Page Description C30 : CHANNEL CONDITION 4-30 Checks the RF condition for each video channel (Y and C) to be played back. DNW-A22/A22P...
  • Page 84 Displays the data in ROM. (Used for check at the factory.) C46 : HOUR METER RESET 4-34 Displays and resets the resettable hours meter and thread counter. C48 : PATH MODE SEL 4-35 Sets the tape PB mode. (Used for tape transport adjustment.) DNW-A22/A22P...
  • Page 85 T sides. A010 : CAPSTAN FREE SPEED 4-39 Automatically adjusts the capstan free speed. A011 : RF SWITCHING POS. 4-40 Automatically adjusts the RF switching position. A012 : NV-RAM CONTROL 4-42 Saves the adjustment data in a servo system. DNW-A22/A22P...
  • Page 86 A2F:NV-RAM CONTROL Title Page Description A20 : VPR VR 4-51 Adjusts the reference signal system and analog video output system on the VPR-17 board. A2F : NV-RAM CONTROL 4-52 Saves the adjustment data in audio and video systems. 4-10 DNW-A22/A22P...
  • Page 87 RF envelope (DM-89 board). A37 : TBC VR 4-54 Sets the read clock timing and the data of a PB VISC phase detection circuit TBC-23 board. A3F : NV-RAM CONTROL 4-55 Saves the adjustment data in an analog Betacam PB system. 4-11 DNW-A22/A22P...

  • Page 88: Servo Check Mode (C0)

    C03 : REEL/CAPSTAN MOTOR & FG CHECK Menu Tree of Servo System Check Mode When the unit has a cassette tape, the cassette tape is automatically ejected on shifting to any lower-level menu from the C00-03 : SERVO CHECK menu. 4-12 DNW-A22/A22P...
  • Page 89 Check the sensor input port of MPU (IC1 on the MS-50 board). SW 987654321 000100000 Cassette tab sensors 1 Reel hub sensor 2 Metal/oxide tape sensor 3 Tape thickness sensor 4 Spare sensor 2 5 Spare sensor 1 6 Digital/analog tape sensor Locations of Sensors (Switches) 4-13 DNW-A22/A22P...
  • Page 90 Push the cassette window up manually. Push the switch in the direction of thick arrow. Locations of Switches in Compartment Block < Top view > Rear Cassette compartment PC-70 board Front Cassette-in sensor (L) Cassette size sensor Cassette-in sensor (R) Locations of Sensors 4-14 DNW-A22/A22P...
  • Page 91 . Check the oscillator and detection circuit on the MS-50 board for sensors. . Check the corresponding sensor input port (IC115 on the SS-83 board). Tape top sensor Tape end sensor Locations of Tape Top and Tape End Sensors 4-15 DNW-A22/A22P...
  • Page 92 DEW SENSOR : WET! . Check each sensor itself. . Check the detection circuit on the MS-50 board. . Check the sensor input port of MPU (IC1 on the MS-50 board). Dew condensation sensor Location of Dew Condensation Sensor 4-16 DNW-A22/A22P...
  • Page 93 . Check an S or T brake solenoid using a submenu C021 or C022. FG sensor for S reel table FG sensor for T reel table S reel table T reel table (S cassette position) Locations of Reel Table FG Sensors 4-17 DNW-A22/A22P...
  • Page 94 . Check the threading end sensor or unthreading end sensor on the TR-79 board. . Check the sensor input port of MPU (IC1 on the MS-50 board). Unthreading end sensor Threading motor Threading end sensor Threading ring (Unthreading end state) Location of Threading End and Unthreading End Sensors 4-18 DNW-A22/A22P...
  • Page 95 . Check the cassette-down sensor (s) on the CL-29 board. DOWN . Check the sensor input port of MPU (IC1 on the MS-50 board). Rear Upper Cassette-down sensor (1) Lower Cassette-down sensor (2) Cassette compartment motor Front Top View of Cassette Compartment 4-19 DNW-A22/A22P...
  • Page 96 . Check the capstan FG shaping circuit on the MS-58 board. SERVO CHECK MOTOR CHECK C014:CAPSTAN MOTOR . Check each circuit that processes the capstan FG on the SS-83 board. . Check the capstan motor. FORWARD..OK Capstan shaft (Unthreading end state) Location of Capstan Shaft 4-20 DNW-A22/A22P...
  • Page 97 . Check the drum FG/PG shaping circuit on the DR-315 board. . Check each circuit that processes the drum FG/PG on the SS-63 board. After about 3 sec. SERVO CHECK MOTOR CHECK C015:DRUM MOTOR SPEED : PHASE : LOCK EXIST 4-21 DNW-A22/A22P...
  • Page 98 . Check the sensor input port of MPU (IC1 on the MS-50 board). T reel table S reel table (S cassette position state) L position sensor S position sensor Reel shift motor Locations of S and L Position Sensors and Reel Shift Motor 4-22 DNW-A22/A22P...
  • Page 99 . Check the mechanical abnormality. . Check the pinch roller solenoid driver circuit on the DR-315 board. . Check the pinch roller solenoid itself. Pinch roller solenoid Capstan Pinch lever (Unthreading end state) Locations of Pinch Roller Solenoid and Pinch Lever 4-23 DNW-A22/A22P...
  • Page 100 . Check the reel brake solenoid driver circuit on the DR-315 board. . Check the reel brake solenoid itself. S reel table T reel table (S cassette position state) Cores T reel brake solenoid S reel brake solenoid Locations of Reel Brake Solenoids 4-24 DNW-A22/A22P...
  • Page 101 . Check the mechanical abnormality. . Check the cleaning roller solenoid driver circuit on the DR-315 board. . Check the cleaning roller solenoid itself. Cleaning roller solenoid Cleaning roller (Unthreading end state) Locations of Cleaning Roller and Cleaning Roller Solenoid 4-25 DNW-A22/A22P...
  • Page 102 S reel torque adjustment (A006). In case of NG during (C037) T REEL MOTOR TORQUE Perform the T reel motor check (C011). If no abnormality is found in the motor or its drive circuit, perform the T reel torque adjustment (A007). 4-26 DNW-A22/A22P...

  • Page 103: Rf Check Mode (C1)

    GRN. If there is at least . If abnormality exists in the servo system, this menu does one channel whose condition is YEL or RED, the not function properly. worst condition is displayed on the right of “ALL”. 4-27 DNW-A22/A22P...
  • Page 104 . Keep the unit until automatic check is completed. Check cannot be properly performed in other mode than PLAY mode. If the unit enters into other mode than PLAY mode, the check freezes or the condition becomes “RED”. 4-28 DNW-A22/A22P...
  • Page 105 (Refer to the maintenance manual part 2, volume-1.) RSLT RSLT . Harness (between EQ-56 board and drum assembly) connection defect . RF system adjustment defect 8 Readjust the RF system. (A1 : RF ADJUST) . EQ-56 board defect (omitted) . Drum assembly defect (continue) 4-29 DNW-A22/A22P...

  • Page 106: Betacam Pb Check Mode (C3)

    (2) Change the playback portion on the alignment tape. Betacam/Betacam SP PB function of DNW-A22 is for (3) Recheck in the menu C11. NTSC (525/60) system only.
  • Page 107 . Worm PB head 8 After checking the hours meter (H02 : DRUM RUNNING HOURS), replace the upper drum assembly as required. (Refer to the maintenance manual part 2, volume-1.) . Drum assembly defect . EQ-56 board defect 4-31 DNW-A22/A22P...

  • Page 108: Others Check Mode (C4)

    C40 : ROM VERSION Serial number setting OTHERS CHECK MODE C40:ROM VERSION (1) Turn the search dial to turn on and off the digit you DNW-A22(SY) wish to set. SY1 V2.00 SY2 V2.00 SV1 V2.00 (2) Turn the search dial while pressing the JOG button and change the digit number.
  • Page 109 The device ID is set using the DEVICE command of an ISR protocol. This setting is maintained (even if the power is turned off) until it is changed by the DEVICE command. The device ID becomes blank when it is not set. 4-33 DNW-A22/A22P...
  • Page 110 . On pressing, a message “Saving...” will be dis- played on only the superimposed display. If no abnormality is found, the display changes to “Save Complete” after a few seconds. To turn off “Save Complete”, turn the search dial. 4-34 DNW-A22/A22P...
  • Page 111 To return to the former state, press the MENU button. For the video tracking confirmation and adjustment, refer to “7-1-3. Video Tracking Confirmation and Adjustment” in the maintenance manual part 2, volume-1. 4-35 DNW-A22/A22P...

  • Page 112: Servo Adjust Mode (A0)

    A012 : NV-RAM CONTROL The menu title of A010 may be displayed as “CAPSTAN SPEED”. When the unit has a cassette tape, the cassette tape is automatically ejected on shifting to any lower-level menu from the A00-01 : SERVO ADJUST menu. 4-36 DNW-A22/A22P...
  • Page 113 SAVE SERVO ADJUST Check [MENU] DATA in A012 : NV-RAM CONTROL menu. Data save A012:NV-RAM CONTROL SERVO ADJUST A001-008:AUTO ADJUST A006:S REEL TORQUE # ADJUST INCOMPLETE # # S REEL TROUBLE Ex.: When failing the automatic adjustment 4-37 DNW-A22/A22P...
  • Page 114 (3) To exit the menu, press the MENU button once. (4) To save the adjustment data into the NV-RAM of a servo system, execute the SAVE SERVO ADJUST DATA in A012 : NV-RAM CONTROL menu. Ex.: When failing the automatic adjustment 4-38 DNW-A22/A22P...
  • Page 115 . Alignment tapes SR2-1 and SR2-1P, and CR2-1B SR2-1 ALIGNMENT TAPE (DNW-A22) or CR2-1B PS (DNW-A22P) are required AND PUSH PLAY KEY for this adjustment. Perform the adjustment with each alignment tape. . Message “SET SR2-1 ALIGNMENT TAPE AND PUSH...
  • Page 116 (6) To save the adjustment data into the NV-RAM of a servo system, execute the SAVE SERVO ADJUST SERVO ADJUST A011:RF SWITCHING POS. DATA in A012 : NV-RAM CONTROL menu. # ADJUST INCOMPLETE # PG DATA:C000 EX.: When failing the automatic adjustment 4-40 DNW-A22/A22P...
  • Page 117 A002 : T REEL FG DUTY SR2-1P (at 625/50 system) When “T REEL FG AMP TROUBLE” is displayed: CR2-1B (for DNW-A22 at 525/60 system only) Check the T reel FG amplifier circuit on the MS-50 CR2-1B PS (for DNW-A22P at 625/50 system only) board.
  • Page 118 “DATA SAVED” will be displayed on the superim- SAVE SERVO ADJUST DATA posed display and “A0121 10” will be displayed in the time data display area. DATA SAVED (4) To exit the menu, press the MENU button once. Check [MENU] 4-42 DNW-A22/A22P...

  • Page 119: Rf Adjust Mode (A1)

    Right side of above displays are examples while pressing A16 : A/D GAIN the STOP button. Actually, each adjustment data is displayed at the “xx” This menu automatically adjusts the gain in converting a portion. PB RF signal from analog to digital. 4-43 DNW-A22/A22P...
  • Page 120 STOP button except in adjusting. Do not press the STOP button in adjusting. If pressing it in adjusting, the tape stops and the automatic adjustment becomes impossible. 4-44 DNW-A22/A22P...
  • Page 121 . Keep the unit until automatic adjustment is complet- ed. Any adjustment cannot be properly performed if the tape transport state is changed by touching some button or search dial. In this case, the adjustment freezes or the adjustment result becomes “FAIL” or “NG”. 4-45 DNW-A22/A22P...
  • Page 122 RSLT A2/6 OK B2/6 OK Check [MENU] Data save RF ADJUST MODE A11:EQUALIZER * A1F:NV-RAM CONTROL Auto Adjust Complete RSLT RSLT (omitted) RF ADJUST MODE A11:EQUALIZER Auto Adjust Complete RSLT RSLT Check [MENU] Data save * A1F:NV-RAM CONTROL 4-46 DNW-A22/A22P...
  • Page 123 “A17-ALL FAIL” or “A17-ALL NG” is displayed. . If the message “Condition NG” or “Auto Adjust Failure” is displayed, refer to the “For Condition NG/Automatic Adjustment Failure” on page 4-49. . To check the adjustment data, press the STOP button. 4-47 DNW-A22/A22P...
  • Page 124 A17:A11-A17 ALL ADJUST A13:PLAY PLL Auto Adjusting RSLT RSLT A2/6 B2/6 (omitted) RF ADJUST MODE A17:A11-A17 ALL ADJUST A16:A/D GAIN Auto Adjusting RSLT RSLT A2/6 B2/6 (omitted) RF ADJUST MODE A17:A11-A17 ALL ADJUST A11:EQUALIZER Auto Adjusting RSLT RSLT (omitted) (continue) 4-48 DNW-A22/A22P...
  • Page 125 . Brush slip ring assembly defect or its part installation/ connection defect 8 Replace or reinstall the brush slip ring assembly. (Refer to the maintenance manual part 2, volume-1.) . Harness (between the EQ-56 board and drum assembly) connection defect 4-49 DNW-A22/A22P...
  • Page 126 RF ADJUST MODE ADJUST A1F:NV-RAM CONTROL NO OPERATION SAVE ALL ADJUST DATA ALL DATA PREVIOU (2) 0 [SET] SAVING RF ADJUST MODE A1F:NV-RAM CONTROL Saving .. SAVE CO RF ADJUST MODE MPLETE A1F:NV-RAM CONTROL Save Complete Check [MENU] 4-50 DNW-A22/A22P...

  • Page 127: Audio/Video Adjust Mode (A2)

    The adjustment item below can be adjusted in only a 525/ Never execute SAVE ALL ADJUST DATA. 60 system (DNW-A22) or a 625/50 system (DNW-A22P). If this item is not adjusted, failure also occurs in the other To change the adjustment data manually system.
  • Page 128 On the superimposed display, a message “Save Complete.” or “Load Complete” will be displayed. In the time data display area, a message “SAVING” or “LOADING” will be displayed. Check (4) To exit the menu, press the MENU button once. [MENU] 4-52 DNW-A22/A22P...

  • Page 129: Betacam Pb Adjust Mode (A3)

    This menu is used to adjust the gain of the PB RF amplifier (on the EQ-56 board) based on a Betacam/Betacam SP format. Betacam/Betacam SP PB function of DNW-A22 is for There are adjustment items for metal and oxide tapes. NTSC (525/60) system only.
  • Page 130 This menu is used to set each read clock timing of Y and C Each adjustment data is provided proportionally to the channels and to set the data of a PB VISC phase detection number of heads (Y-A, Y-B, C-A, and C-B). circuit (on the TBC-23 board). 4-54 DNW-A22/A22P...
  • Page 131 On the superimposed display, a message “Save Complete.” or “Load Complete” will be displayed. In the time data display area, a message “SAVING” or “LOADING” will be displayed. Check (4) To exit the menu, press the MENU button once. [MENU] 4-55 DNW-A22/A22P...

  • Page 132: Error Logger Display Mode (M2)

    The time code records the time code (LTC) data that is stored in this unit at the error occurs. The maximum number of stored log is 300. If the number of log exceeds 300, the contents of oldest error log is erased sequentially. 4-56 DNW-A22/A22P...

  • Page 133: Display Mode

    Usually, do not erase any log. There may be some error logs that are useful for confirma- tion of the progress when a trouble occurs or that are '96 07 03 09:23:30 important in preventing a trouble from occurrence. 4-57 DNW-A22/A22P...
  • Page 134 09:23:15 enced by the setting. ERROR LOGGER ERROR LOGGER (001/003) (001/003) 001 REEL TROUBLE-1 002 TAPE TENSION ERROR 003 INTERNAL I/F ERROR '96 07 03 09:23:15 '96 07 03 09:23:10 Ordinary Screen Only Tape-Error Turned Off (No limited-display) 4-58 DNW-A22/A22P...

  • Page 135: Setting Mode

    003 INTERNAL I/F ERROR ------------------------ display. TAPE ERROR CONDITION . Turn the search dial continuously in FORWARD (2) direction for the calendar/clock setting. (Refer '96 07 03 09:23:24 to the next page.) 4-59 DNW-A22/A22P...
  • Page 136 0 [SET] . To set the time accurately, press the SET button immediately the display and current time coincided. '96 08 01 15:00:00 (5) To exit the setting mode, press the MENU button once. '96 08 01 15:00:01 4-60 DNW-A22/A22P...

  • Page 137: Periodic Maintenance And Inspection

    != Fan motor (rear) !\ Fan motor (PS) * : Fan motor (EQ) is equipped in the following units. ![ Fan motor (EQ) DNW-A22: S/N 10001 to 11430 only Air filter 7 DNW-A22P: S/N 10001 to 11080 only !] Fan motor (MD)

  • Page 138: Periodic Replacement And Check Item Table

    *5 Video head cleaner assembly includes a video head cleaer. *6 Replace these parts when the replacement period or count is reached whichever is earlier. *7 Check (adjust) the tape tension referring to Section 7-2 of the maintenance manual part 2, volume-1. DNW-A22/A22P...
  • Page 139 Motor assy (RP), capstan 1-454-338-00 Solenoid, Plunger 1-698-939-11 Fan, DC (92 square) 1-698-786-11 Fan, DC (60 square) DNW-A22: S/N 10001 to 11430 only DNW-A22P: S/N 10001 to 11080 only 1-698-857-11 Fan, DC (60 square) 1-698-812-11 Fan, DC (80 square) A-8267-795-E...

  • Page 140: Hours Meter

    3. Press the SET button on the lower control panel to display the hours meter. 4. Press the MENU button once and repeat from step (2) to display other ITEM. Press the MENU button twice to exit the MENU. DNW-A22/A22P...

  • Page 141: Cleaning

    . Do not insert a cassette tape before a cleaning fluid completely evaporates after cleaning. 2. Preparation 1. Turn the power off. 2. Remove the upper lid. (Refer to Section 2-3-1.) 3. Remove the plate MD assembly. (Refer to Section 2-4.) 4. Remove the cassette compartment. (Refer to Section 2-5.) DNW-A22/A22P...
  • Page 142 < Mechanical Deck Block > Tape guide Capstan AT head Video heads CTL head Upper drum Tape cleaner Lower drum Cassette support Cassette supports Cassette support Pinch roller Cassette supports < Cassette Compartment > < Chassis > Compartment block Fan motors DNW-A22/A22P...

  • Page 143: Tape Running Surface Of Upper Drum

    3. After cleaning, wipe them using a dry cleaning cloth two or three times. Video heads Cleaning cloth Video Heads Cleaning DNW-A22/A22P...

  • Page 144: Tape Running Surface Of Lower Drum And Lead Surface Cleaning

    3. After cleaning, wipe them using a dry cleaning cloth two or three times. Skewer Lower drum's tape-running surface Cleaning cloth Drum lead surface Tape Running Surface of Lower Drum and Lead Surface Cleaning DNW-A22/A22P...

  • Page 145: Stationary Heads Cleaning

    An error may occur in the playback if magnetic powder attaches to the head gap portion of the AT head and CTL head. 2. After cleaning, wipe them using a dry cleaning cloth two or three times. Exit head block Cleaning AT head Entrance head block Cleaning CTL head Stationary Heads Cleaning DNW-A22/A22P...

  • Page 146: Tape Running System And Tape Cleaner Cleaning

    3. After cleaning, clean them using a dry cleaning cloth two or three times. Capstan TG-4 TG-1 TG-3(Exit guide) (S-TEN) TG-7 Pinch roller TG-6 TG-8(T-TEN) TG-5 TG-9 TG-0 Slant guide Tape cleaner TG-10 TG-2 (Entrance guide) (Threading end mode) Tape Running System and Tape Cleaner Cleaning 5-10 DNW-A22/A22P...

  • Page 147: Fan Motors Cleaning

    4. Clean the blades of the fan motors (shaded portion in the figure) using cleaning cloth moistened with a cleaning fluid. 5. Reattach the connector panel. (Refer to Section 2-3-3.) 6. Reattach the power panel. (Refer to Section 2-3-4.) Fan motor Blade Fan motor Fan Motor Cleaning 5-11 DNW-A22/A22P...

  • Page 148: Cassette Compartment And Cassette Supports Cleaning

    4. Clean the cassette supports on the mechanical deck using a dry cloth (or gauze). 5. Reinstall the cassette compartment. (Refer to Section2-5.) Cassette support Cassette supports Compartment block Cassette supports Cassette compartment block assembly Cassette Compartment Cleaning 5-12 DNW-A22/A22P...

  • Page 149: Video Head Tip Protrusion Check

    2. Clean the probe, positioning flange, and portion touching the drum of two legs. (Refer to Figure 3.) Do not apply excessive force to the probe during cleaning. If a deposit of µm order exists, measurement cannot be performed accurately. 5-13 DNW-A22/A22P...
  • Page 150 . The legs adhere closely to the outer circumference of the drum’s upper surface. Figure 3. Setting of Head Tip Protrusion Measurement Gauge . The value that the dial gauge pointer reads is the same as before setting (in step 2). 5-14 DNW-A22/A22P...
  • Page 151 < B > measurement gauge does not touch the outer circum- Hr = Hb _ Ha ference or video head on the drum. = 40 _ 2 = 38 (µm) Figure 4. Example of Head Tip Protrusion Measurement 5-15 DNW-A22/A22P...

  • Page 152: Brush Slip Ring Assembly Removal/Reinstallation

    Be careful not to drop these screws in the cover. (white) of the connector. Screw (PSW2 x 16) Screw (PSW2 x 16) Flexible board Brush slip ring assembly Cover SE-341 board Flange Connector (CN2) Tightening torque: 14.7 x 10 N.m {1.5 kgf.cm} 5-16 DNW-A22/A22P...

  • Page 153: Replacement Of Plug-In Boards

    . The SS-63 board of the board numbers 1-661-127-11 and 1-661-127-12 can not be used to the DNW- A22/A22P. . The DM-89 board of the service parts code suffix-A cannot be used to the DNW-A22/A22P. . The TBC-23 board of the service parts code suffix-A cannot be used to the DNW-A22/A22P.

  • Page 154: Service Action Before/After Plug-In Board Replacement

    Electrical adjustments and DIP switches setting TBC-24 Section 6-7 Electrical adjustments VPR-17 Section 6-8 Electrical adjustments For the setting of switches and shorting plugs, and the resetting the setup menu (Main and Extended menus), need to record the setting states of before replacement. DNW-A22/A22P...

  • Page 155: Plug-In Board Pulling Out/Insertion

    . After inserting the board, press in the two folded eject levers simultaneously to firmly connect the plug- in board to the connector on the motherboard (MB-648 board). . To reattach the board retainer, tighten the screw after inserting the protrusion of the board retainer into the square hole of chassis. DNW-A22/A22P...

  • Page 156: Equipment List

    Shorting clips APR-12, DM-89 If the DNW-A22 is operated on the 625/50 system, the adjustments for the 625/50 system are required at the electrical adjustments after the VPR-17 board replacement. In this time, the composite video monitor for 625/50 system is required to display the maintenance mode screen.
  • Page 157 75 Z VPR-17 Cleaning tape BCT-5CLN (SONY standard products) DM-89, TBC-23/24 Alignment tapes CR5-1B PS (SONY part No. 8-960-096-91) DM-89, EQ-56, TBC-23/24 CR5-2A PS (SONY part No. 8-960-098-44) DM-89, EQ-56, TBC-23/24 CR8-1A PS (SONY part No. 8-960-098-45) APR-12 CR8-1B PS (SONY part No. 8-960-096-86)

  • Page 158: Content Of Alignment Tapes

    6-1-5. Content of Alignment Tapes Describes the contents of alignment tapes to be appeared in Section 6. CR5-1B (SONY part No. 8-960-096-41): For DNW-A22 CR5-1B PS (SONY part No. 8-960-096-91): For DNW-A22P Time (min. : sec.) Video * * * * * LAU tracks...
  • Page 159 No signal No signal 8:00 - 10:00 1 kHz sine wave, 0 VU 1 kHz sine wave, 0VU No signal CR8-1B PS (SONY part No. 8-960-096-86): For DNW-A22P only Time (min. : sec.) LAU tracks CTL track Video 0:00 -...
  • Page 160 6-1. Service Overview for Plug-in Board Replacement SR5-1 (SONY part No. 8-960-075-01): For DNW-A22 SR5-1P (SONY part No. 8-960-075-51): For DNW-A22P Time (min. : sec.) Digital video Digital audio CTL track 0:00 - 100% color-bar 1 kHz sine wave, _20 dB FS...

  • Page 161: Board Replacement

    6-2. APR-12 Board Replacement 6-2. APR-12 Board Replacement The electrical adjustments are essential after the APR-12 board for DNW-A22/A22P is replaced. To perform the electrical adjustments, the following equipment and fixtures are required. . Audio analyzer: TEKTRONIX AA501A-option 02 or equivalent Always, the audio analyzer should be filtered through 80 kHz LPF.

  • Page 162: Electrical Adjustments

    MONITOR OUTPUT R LAU Dolby level adjustment 1RV503/APR-12(C-1) TP501/APR-12(C-1) 1RV604/APR-12(E-1) TP601/APR-12(E-1) LAU PB level adjustment MONITOR OUTPUT L 1RV504/APR-12(B-1) MONITOR OUTPUT R 1RV605/APR-12(F-1) LAU PB phase adjustment 1RV603/APR-12(F-1) MONITOR OUTPUT L/R Dolby is registered trademark of Dolby Laboratories Licensing Corporation. 6-10 DNW-A22/A22P...
  • Page 163 APR-12 Board (Side A) Setting of the DNW (1) DNW-A22P only Set S1100-1 on SS-63 board to ON to treat the extended menu of the setup menu. S1100 SS-63 board Set S1100-1 to ON S1100 on SS-63 Board 6-11 DNW-A22/A22P...
  • Page 164 OFF ON ON OFF Sub Control Panel Setting of the setup extend menu . For the DNW-A22 None. . For the DNW-A22P Set the ITEM-F01: AUDIO NR IN SP MODE to “SW”. . To display the ITEM-F00 series, turn the search dial while pressing the PLAY button.
  • Page 165 E100 TP700 COR300 COR400 16 18 20 16 18 20 COR301 COR401 UNITY (L) VAR (L) UNITY (R) VAR (R) COR302 COR402 TP300 TP400 –3 >EP–GW< –3 –20 –20 RV300 RV400 E300 E400 TP701 APR-12 Board (Side A) 6-13 DNW-A22/A22P...
  • Page 166 (1) Connect the input of audio analyzer to MONITOR OUTPUT L connector. (2) Playback the following specified portions (_20 VU) of the alignment tape CR8-1A or CR8-1A PS, and perform the adjustments and checks. (DNW-A22: CR8-1A, DNW-A22P: CR8-1A PS) Playback portion...
  • Page 167 TP700 TP560 COR300 COR400 16 18 20 16 18 20 COR301 COR401 UNITY (L) VAR (L) UNITY (R) VAR (R) COR302 COR402 TP300 TP400 –3 >EP–GW< –3 –20 –20 RV300 RV400 E300 E400 TP701 APR-12 Board (Side A) 6-15 DNW-A22/A22P...
  • Page 168 (2) Playback the 1 kHz, 0 VU portion (0:00 to 2:55) of alignment tape CR8-1A or CR8-1B PS, and perform the level adjustment. (DNW-A22: CR8-1A, DNW-A22P: CR8-1B PS) Adjustment point: 1RV503/APR-12(C-1) _10.0 ± 0.2 dBu (0 dBu = 0.775 V rms)
  • Page 169 (1) Connect the input of audio analyzer to MONITOR OUTPUT L connector. (2) Playback the 1 kHz, 0 VU portion (0:00 to 2:55) of alignment tape CR8-1A or CR8-1B PS, and perform the level adjustment. (DNW-A22: CR8-1A, DNW-A22P: CR8-1B PS) Adjustment point: 1RV504/APR-12(B-1) +4.0 ± 0.2 dBm (at 600 Z load)
  • Page 170 The cables CH-1 and CH-2 shall be the same in the length and have the same wire color on the pigtailed. (2) For the DNW-A22, playback the 10 kHz, _10 VU portion (3:00 to 4:55) of the alignment tape CR8- For the DNW-A22P, playback the 15 kHz, 0 VU portion (3:00 to 4:55) of the alignment tape CR8-1B (3) Observe the lissajous waveform on the oscilloscope.

  • Page 171: Board Replacement

    To perform the electrical adjustments, the following equipment and fixtures are required. The DM-89 board of the service parts code suffix-A cannot be used to DNW-A22/A22P. Some setting data are different according to the board number suffix (XX of 1-648-541-XX) of DM-89 board.

  • Page 172: Electrical Adjustments

    A33 : DM VR 2 : MAIN METAL-Y-A TP3/DM-89 A33 : DM VR 2 : MAIN METAL-Y-B A34 : DM VR 3 : SUB METAL-Y-A DNW-A22: Set the data to AF A34 : DM VR 3 : SUB METAL-Y-B DNW-A22P: TP2/DM-89 METAL C...
  • Page 173 TP8/DM-89 Non-liner output level adjustment METAL Y TP505/DM-89 1RV503/DM-89 METAL C 1RV703/DM-89 TP705/DM-89 (For DNW-A22P) 1RV704/DM-89 TP705/DM-89 (For DNW-A22) OXIDE C 1RV704/DM-89 TP705/DM-89 (DNW-A22P only) OXIDE Y 1RV504/DM-89 TP505/DM-89 10 PB frequency response adjustment METAL Y A32 : DM VR 1 : EQ1 METAL-Y-A...
  • Page 174 A3F : NV-RAM CONTROL 16 Video output level adjustment METAL Y 1RV101/TBC-24 VIDEO OUTPUT COMPOSITE 1 METAL C VIDEO OUTPUT COMPOSITE 1 1RV201/TBC-24 OXIDE Y 1RV504/DM-89 VIDEO OUTPUT COMPOSITE 1 OXIDE C 1RV704/DM-89 VIDEO OUTPUT COMPOSITE 1 (DNW-A22P only) 6-22 DNW-A22/A22P...
  • Page 175 TP204 TP300 TP100 E301 TP203 E101 E902 DM-89 Board (Side A) Connection Connect the composite waveform monitor and video monitor as shown below. VIDEO OUTPUT Composite COMPOSITE waveform/vector monitor CH-A 75 Z Video monitor (terminated with 75 Z) 6-23 DNW-A22/A22P...
  • Page 176 VI TC UB DF LTC VITC DOLBY TCG TOTAL REMAIN 525 625 REVERSE FORWARD BETACAM MENU CTL/TC/UB RESET ALARM SERVO STANDBY EJECT PLAY F FWD STOP Upper/Lower Control Panels CHARACTER DOLBY OFF ON OFF ON Sub Control Panel 6-24 DNW-A22/A22P...
  • Page 177 (3) After the tape operation is completed, press the MENU button to cancel the pause of maintenance mode. The display of the time data display area and video monitor are returned their previous states. 6-25 DNW-A22/A22P...
  • Page 178 (For setting data, refer to the table below.) (10) To exit A33 : DM VR 2, press the MENU button once. Item of A3 :BETACAM ADJUST Setting data for Setting data for DNW-A22 DNW-A22P A30 : EQ VR RF GAIN METAL-Y-A RF GAIN METAL-Y-B...
  • Page 179 (22) Check that the message “Save Complete” is displayed on the video monitor. (23) To exit A3F : NV-RAM CONTROL, press the MENU button once. Item of A3 :BETACAM ADJUST Setting data for Setting data for DNW-A22 DNW-A22P A34 : DM VR 3 SUB METAL-Y-A SUB METAL-Y-B...
  • Page 180 (3) METAL Y adjustment Playback the flat field signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjust respactively for Y-A and Y-B channels. When watching the Y-A channel, set the trigger of oscilloscope to _ slope.
  • Page 181 (8) OXIDE C adjustment Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjust respactively for C-A and C-B channels. When watching the C-A channel, set the trigger of oscilloscope to _ slope.
  • Page 182 (11) OXIDE Y adjustment Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjust respactively for Y-A and Y-B channels. When watching the Y-A channel, set the trigger of oscilloscope to _ slope.
  • Page 183 (2) Set S101/DM-89(E-6) and S301/DM-89(A-5) to TEST (left) side. (3) Insert the alignment tape CR5-1B or CR5-1B PS. (STANDBY OFF mode) (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) METAL Y adjustment [to step (16)] (4) Short-circuit TP4/DM-89(E-1) and E702/DM-89(D-1) with a shorting clip.
  • Page 184 (i) Adjust the level difference at 12 MHz use 2 MHz as the reference. Adjustment point: A33 : DM VR 2 : MAIN METAL-Y-A B = +8.0 ± 0.5 dB Specification: DNW-A22: DNW-A22P: B = +3.5 ± 0.5 dB A(*)MAG: 1 dB...
  • Page 185 Specification: [ns] [ns] [MHz] [MHz] DNW-A22 DNW-A22P (21) Connect the oscilloscope’s CH-2 to TP7/DM-89(C-1). GND: E702/DM-89(D-1) (22) Enter A33 : DM VR 2 of the maintenance mode. (23) METAL C, Main adjustment (i) Adjust the level difference at 8 MHz use 2 MHz as the reference.
  • Page 186 OXIDE C adjustment [to step (41)] (29) Insert the alignment tape CR5-2A or CR5-2A PS. (STANDBY OFF mode) (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) (30) Connect the output of network analyzer to TP303/DM-89(B-5). GND: E301/DM-89(B-7) (31) Connect the oscilloscope’s CH-2 to TP304/DM-89(B-5). GND: E302/DM-89(B-5) (32) OXIDE C, Group delay adjustment Adjust the delay time at 7 MHz use 2 MHz as the reference.
  • Page 187 (34) Enter A33 : DM VR 2 of the maintenance mode. (35) OXIDE C, Main adjustment (i) Adjust the level difference at 6 MHz (DNW-A22) or 7 MHz (DNW-A22P) use 2 MHz as the reference. Adjustment point: A33 : DM VR 2 : MAIN OXIDE-C-A B = +1.2 ±...
  • Page 188 [dB] [dB] [MHz] [MHz] DNW-A22 DNW-A22P (ii) Set the data value of A34 : DM VR 3 : SUB OXIDE-C-B to the identical data value as SUB OXIDE-C-A. (40) To exit A34 : DM VR 3, press the MENU button once.
  • Page 189 (45) Connect the oscilloscope’s CH-2 to TP104/DM-89(F-5). GND: E104/DM-89(G-5) (46) OXIDE Y, Group delay adjustment Adjust the delay time at 8 MHz use 4 MHz as the reference. Adjustment point: 1RV104/DM-89(E-5) Specification: DNW-A22: A = 40 ± 5 ns DNW-A22P: A = 40 ± 3 ns [ns] [ns]...
  • Page 190 (i) Adjust the level difference at 8 MHz use 2 MHz as the reference. Adjustment point: A34 : DM VR 3 : SUB OXIDE-Y-A C = +14.0 ± 0.5 dB Specification: DNW-A22: DNW-A22P: C = +17.0 ± 0.5 dB A(*)MAG: 2 dB...
  • Page 191 (1) Enter A33 : DM VR 2 of the maintenance mode. (2) Confirm the setting data of all items of A33 : DM VR 2. Item of A33 : DM VR 2 Setting data for DNW-A22 Setting data for DNW-A22P MAIN METAL-Y-A...
  • Page 192 RV103 is not equipped on the DM-89 board of theLOT Nos. 407 and higher RV101 (E-5) RV102 (E-5) RV103 (E-5) RV104 (E-5) RV301 (A-5) RV302 (A-5) RV303 (B-5) RV304 (B-5) DNW-A22 RV103 (E-5) RV101 (E-5) RV102 (E-5) RV301 (A-5) RV302 (A-5) RV303 (B-5) RV304 (B-5) RV104 (E-5)
  • Page 193 (2) METAL Y adjustment Playback the flat field signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV211/DM-89(G-6) A = 400 ± 40 mV p-p Specification: (3) Stop the playback of the alignment tape CR5-1B/CR5-1B PS.
  • Page 194 (7) OXIDE C adjustment Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjustment point: 1RV407/DM-89(C-5) C = 400 ± 40 mV p-p Specification: (8) Stop the playback of the alignment tape CR5-2A/CR5-2A PS.
  • Page 195 (2) OXIDE Y adjustment Playback the pulse and bar signal portion (9:00 to 11:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjustment point: 1RV107/DM-89(F-5) and 1RV108/DM-89(F-5) A > 35 dB Specification: 6.25 MHz...
  • Page 196 TP305/DM-89(C-1), GND: E302/DM-89(B-5) (5) OXIDE C adjustment Playback the pulse and bar signal portion (9:00 to 11:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjustment point: 1RV307/DM-89(F-5) and 1RV308/DM-89(F-5) Specification: B >...
  • Page 197 TP105/DM-89(E-1), GND: E105/DM-89(G-1) (10) METAL Y adjustment Playback the flat filed signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV105/DM-89(F-4) and 1RV106/DM-89(F-5) Specification: D > 40 dB 7.6 MHz...
  • Page 198 100 ms Connection and Setting of Spectrum Analyzer Perform the provisional adjustment only when the spectrum analyzer is not available for an urgent maintenance. At a later date, be sure to perform the adjustment using the specturm analyzer. 6-46 DNW-A22/A22P...
  • Page 199 TP501/DM-89(F-4), AC 1 V/DIV, GND: E501/DM-89(E-3) Trigger: CH-1, _ slope (2) Playback the flat filed signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV502/DM-89(E-3) Specification: Maximize the level difference A.
  • Page 200 TP8/DM-89(C-1), AC 200 mV/DIV, 10 µs/DIV, GND: E702/DM-89(D-1) CH-1: (5) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV702/DM-89(A-4) Specification: Minimize the moiré of specified part.
  • Page 201 CH-1: (2) METAL Y adjustment Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV503/DM-89(F-1) A = 1.00 ± 0.01 V Specification:...
  • Page 202 OXIDE C adjustment for DNW-A22P Playback the 75% color-bar signal portion of the alignment tape CR5-1B or CR5-2A PS, and perform the adjustment. [DNW-A22: CR5-1B (14:00 to 17:00), DNW-A22P: CR5-2A PS (0:00 to 3:00) ] Adjustment point: 1RV704/DM-89(B-1) C = 700 ± 10 mV Specification: (8) For DNW-A22, eject the alignment tape CR5-1B.
  • Page 203 TP505/DM-89(E-2), GND: E501/DM-89(E-3) (10) OXIDE Y adjustment Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjustment point: 1RV504/DM-89(F-1) D = 1.00 ± 0.01 V...
  • Page 204 And check that levels at others are with specifications. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) As the Y output is overlapped the outputs of A and B channels on the composite waveform monitor, adjust/check in each channel.
  • Page 205 (R-Y signal) at specified frequency part by table below. And check that levels of others are whitin specifications. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) The timing order of CTDM signal is REF SYNC, R-Y, B-Y. As these signals are overlapped the output of A and B channels, adjust/check in each channel.
  • Page 206 And check that levels at others are within specifications. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) As the Y output is overlapped the output A and B channels on the composite waveform monitor.
  • Page 207 (R-Y signal) at specified frequency part by table below. And check that levels at others are with specifications. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) The CTDM signal is displayed on the oscilloscope. The timing order of signal is REF SYNC, R-Y, B-Y.
  • Page 208 Trigger: CH-2, _ slope (2) METAL Y adjustment Playback the RF sweep signal portion (0:00 to 2:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV201/DM-89(G-5) Specifications: See the table below.
  • Page 209 TP5/DM-89(D-1), GND: E702/DM-89(D-1) (4) METAL C adjustment Playback the RF sweep signal portion (0:00 to 2:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV401/DM-89(G-4) Specifications: See the table below.
  • Page 210 (2) METAL Y adjustment Playback the flat field signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV211/DM-89(G-6) A = 400 ± 40 mV p-p Specification: (3) Stop the playback of the alignment tape CR5-1B/CR5-1B PS.
  • Page 211 (7) OXIDE C adjustment Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS, and perform the adjustment. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) Adjustment point: 1RV407/DM-89(C-5) C = 400 ± 40 mV p-p...
  • Page 212 Trigger: CH-2, _ slope (2) Y adjustment Playback the flat filed signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS, and perform the adjustment. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment point: 1RV205/DM-89(G-6) A = 2.0 ± 0.2 V dc...
  • Page 213 RV202 RV308 RV201 E302 RV407 E104 TEST RV108 E102 TP104 S102 RV405 TP303 TP103 TP304 TEST S101 RV211 RV212 TP102 TEST TP403 E103 TP202 TP404 TP302 TP204 TP300 RV205 TP100 E301 E101 E902 TP203 DM-89 Board (Side A) 6-61 DNW-A22/A22P...
  • Page 214 Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS, and adjust the DC voltage level of the following measurement points using the digital voltmeter as identical to measured voltage in step (1). (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Measurement point...
  • Page 215 CH-1: (9) Gain adjustment Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS in the following modes, and perform the adjustment and check. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) For DNW-A22 Playback mode Specification...
  • Page 216 (3) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS in the JOG mode. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (4) Turn the search dial until guard band appears at the center on the video monitor screen.
  • Page 217 (11) Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS in the JOG mode. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) (12) Turn the search dial until guard band appears at the center on the video monitor screen.
  • Page 218 (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Equipment setting Specifications Adjustment point DNW-A22: A = 714 ±7 mV (100 ± 1 IRE) WAVEFORM mode 1RV101/TBC-24(F-1) DNW-A22P: A = 700 ±7 mV VECTOR mode...
  • Page 219 (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) For DNW-A22, perform the check (adjustment) for Y signal only. Equipment setting Specifications Adjustment point DNW-A22: A = 714 ± 7 mV (100 ± 1 IRE) WAVEFORM mode 1RV504/DM-89(F-1) DNW-A22P: A = 700 ± 7 mV VECTOR mode...

  • Page 220: Board Replacement

    To perform the electrical adjustments, the following equipment and fixtures are required. . Oscilloscope: TEKTRONIX 2465B or equivalent . Composite video monitor (to display of the maintenance mode) . Extension board: EX-377 (SONY part No. J-6269-810-A) for DM-89 board extension . Alignment tape(s) For DNW-A22: SR5-1 (SONY part No. 8-960-075-01), CR5-1B (SONY part No.

  • Page 221: Electrical Adjustments

    (FF follows 00) FORWARD direction: the data value increases (00 follows FF) During adjustment, change the rotational direction of the search dial according to the change of waveform that is displayed on the measuring equipment. 6-69 DNW-A22/A22P...
  • Page 222 A1F: NV-RAM CONTROL A3: BETACAM PB ADJUST A30: EQ VR A3F: NV-RAM CONTROL 0. Preparation (1) Connect the video monitor to the VIDEO OUTPUT COMPOSITE 2 (SUPER) connector. (2) Wait for more than 20 minutes after turning on the power. 6-70 DNW-A22/A22P...
  • Page 223 1. All RF System Adjustment (1) Insert the alignment tape SR5-1/SR5-1P, then search the alignment tape 00:01:00 in time code. (DNW-A22: SR5-1, DNW-A22P: SR5-1P) (2) To enter the maintenance mode, press S1101(G-1) on the SS-63 board. (3) Enter A17 : A11-A16 ALL ADJUST in the maintenance mode.
  • Page 224 (6) To perform the alignment tape operation, press the SET button once. (7) Playback the flat field signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (8) To operate the maintenance mode, press the MENU button once.
  • Page 225 CH-2: TP5/DM-89(D-1), GND: E702/DM-89(D-1) (13) Playback the flat field signal portion (24:00 to 26:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (14) To operate the maintenance mode, press the MENU button once. (15) Perform the METAL C adjustment.
  • Page 226 CH-2: TP4/DM-89(E-1), GND: E702/DM-89(D-1) (24) Playback the flat field signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A PS. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) (25) To operate the maintenance mode, press the MENU button once. (26) Perform the OXIDE Y adjustment.

  • Page 227: Board Replacement

    (1) Setting the DIP switch S1102 (F-2) as follows: The SS-63 board of the board numbers 1-661-127-11 and 1-661-127-12 cannot be used to DNW-A22/A22P. Setting is different according to the model. Be sure to confirm the suffix of board number. The board...

  • Page 228: Error Logging Data Clear And Calendar/Clock Setting

    (10) To exit the error logger display mode, press the MENU button once again. When entering the error logger display mode from the maintenance mode, returns the maintenance mode screen. Exits the maintenance mode by pressing the MENU button once again. 6-76 DNW-A22/A22P...
  • Page 229 (6) Second setting [MENU] 97 01 01 12 00 00 (Canceling that setting) Push SET button '97 01 01 12:00:00 Blinks the value [SET] 97 01 01 12 00 01 '97 01 01 12:00:01 [MENU] (10) [MENU] Exit 6-77 DNW-A22/A22P...

  • Page 230: Board Replacement

    (F-2) of side A of TBC-23 board. For the TBC-23 board of the board number 1-648-543-13 or 1-648-543-14, modification is required. Please consult your Sony Sales Office/Service Center detail. The board number is indicated on the left margin (A-6) of side A of TBC-23 board.

  • Page 231: Electrical Adjustments

    0. Preparation Setting (Check) of the switches on the TBC-23 board Confirm that the switches on TBC-23 board are factory settings. Ref. No. Switch No. Factory setting All OFF S500 TBC-23 board S500 S1 and S500 on TBC-23 Board 6-79 DNW-A22/A22P...
  • Page 232 VI TC UB DF LTC VITC DOLBY TCG TOTAL REMAIN 525 625 REVERSE FORWARD BETACAM MENU CTL/TC/UB RESET ALARM SERVO STANDBY EJECT PLAY F FWD STOP Upper/Lower Control Panels CHARACTER DOLBY OFF ON OFF ON Sub Control Panel 6-80 DNW-A22/A22P...
  • Page 233 6-6. TBC-23 Board Replacement (3) Setting of the setup extend menu . For DNW-A22 Set the SUB-ITEM of ITEM-713 as shown below. After adjustments are completed, return the SUB-ITEMs to their previous settings. ITEM SUB-ITEM Setting Previous setting (fill up) 713 : VIDEO SETUP REFERENCE LEVEL 1.
  • Page 234 (1) Enter the maintenance mode, then enter A37 : TBC VR. (2) Set the specified data to all items of A37 : TBC VR. Item of A37 : TBC VR Setting data for DNW-A22 Setting data for DNW-A22P SQ Y RZ...
  • Page 235 (3) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (4) Confirm that time between the 50% position at rising edge of H SYNC signal and the 50% position at the rising edge of white signal portion.
  • Page 236 LINE SELECT: 183 to 202 for NTSC/218 to 241 for PAL (2) Playback the bowtie signal portion (17:00 to 19:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (3) Observe the 12.5T (PAL: 10T) portion of bowtie signal, confirm that the waveform satisfies the specification.
  • Page 237 METAL adjustment [to step (16)] (5) Playback the bowtie signal portion (17:00 to 19:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (6) Observe the 12.5T (PAL: 10T) portion of bowtie signal, adjust so that the waveform satisfies the specification.
  • Page 238 OXIDE adjustment [to step (19)] (17) Playback the bowtie signal portion (6:00 to 9:00) of the alignment tape CR5-2A or CR5-2A PS. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) (18) Observe the 12.5T (PAL: 10T) portion of dowtie signal, adjust so that the waveform satisfies the specification.

  • Page 239: Board Replacement

    . Cleaning tape: BCT-5CLN (SONY standard products) . Alignment tapes For DNW-A22: CR5-1B (SONY part No. 8-960-096-41) and CR5-2A (SONY part No. 8-960-097-44) For DNW-A22P: CR5-1B PS (SONY part No. 8-960-096-91) and CR5-2A PS (SONY part No. 8-960-098-44) 6-87 DNW-A22/A22P...

  • Page 240: Replacement Procedure

    (6) Perform the electrical adjustments (Section 6-7-2). Remove the extension board and extension harness in some steps of the electrical adjustment. (7) For DNW-A22 only Return the ITEM-709 and ITEM-713 of setup extend menu to previous settings after the electrical adjustments are completed.

  • Page 241: Electrical Adjustments

    Note 6: If the specification is not satisfied by RV500, change the data of A37: TBC VR: SQ C RZ. Note 7: This RV504 is not equipped on the TBC-24 board of board number suffixes 11 and 12. 6-89 DNW-A22/A22P...
  • Page 242 75 Z Video monitor (terminated with 75 Z) Setting of DNW (1) Set S1100-1 on SS-63 board to ON to treat the extended menu of the setup menu. S1100 SS-63 board Set S1100-1 to ON S1100 of SS-63 Board 6-90 DNW-A22/A22P...
  • Page 243 DOLBY OFF ON OFF ON Sub Control Panel (3) Setting of the setup extend menu . For DNW-A22 Set the SUB-ITEM of ITEM-713 as shown below. After adjustments are completed, return the SUB-ITEMs to their previous settings. ITEM SUB-ITEM Setting...
  • Page 244 (1) To set the cursor (* mark) to A3F : NV-RAM CONTROL, turn the search dial. (2) Press the SET button once. (3) To set the cursor (* mark) to “SAVE ALL ADJUST DATA”, turn the search dial. (4) Press the SET button once. 6-92 DNW-A22/A22P...
  • Page 245 (DNW-A22 CR5-1B, DNW-A22P: CR5-1B PS) Equipment setting Specifications Adjustment point DNW-A22: A = 714 ± 7 mV (A = 100 ±1 IRE) WAVEFORM mode 1RV101/TBC-24(F-1) DNW-A22P: A = 700 ± 7 mV VECTOR mode...
  • Page 246 (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) For DNW-A22, perform the check (adjustment) for Y signal only. Equipment setting Specifications Adjustment point DNW-A22: A = 714 ±7 mV (A = 100 ± 1 IRE) WAVEFORM mode 1RV504/DM-89(F-1) DNW-A22P: A = 700 ±7 mV VECTOR mode...
  • Page 247 Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS, and adjust the DC voltage level of the following measurement points as identical to the measured voltage in steps (4) and (5). (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Measurement point...
  • Page 248 (3) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS, then adjust each DC level of Y side and C side. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) Adjustment points: Y(CH-1) side: 1LV401/TBC-24(F-6) C(CH-2) side: 1LV601/TBC-24(B-6) 2.0 ±...
  • Page 249 SHUTTLE _24 times speed, then confirm that vertical lines of color-bar on the video monitor displays straight. In DNW-A22 only, if vertical lines are not straight, adjust RV402. (4) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B/CR5-1B PS in the range from VARIABLE _10 times speed to fastest + speed, then confirm that vertical lines of color-bar on the video monitor displays straight.
  • Page 250 (8) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (9) Confirm that time between the 50% position at rising ede of H SYNC signal and the 50% position at the rising edge of while signal portion.
  • Page 251 It is not necessary to eject the alignment tape when perform subsequent “6. TBC Y/C Delay Rough Adjustment”. TBC-24 board (suffix-11 and 12) RV200 RV500 RV501 RV300 RV101 RV201 TBC-24 board (suffix-13 and higher) RV300 RV201 RV500 RV501 RV504 RV101 RV300 on TBC-24 Board 6-99 DNW-A22/A22P...
  • Page 252 TP601 TP400 RV503 E302 RV503 E302 RV303 RV303 TP602 TP403 TP602 TP403 RV502 RV502 TP604 TP606 TP604 TP404 TP606 TP404 TP603 TP402 TP301 TP406 TBC-24 Board (Side A) (Suffix-11 and -12) TBC-24 Board (Side A) (Suffix-13 and Higher) 6-100 DNW-A22/A22P...
  • Page 253 METAL adjustment [to step (18)] (6) Playback the bowtie signal portion (17:00 to 19:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (7) Observe the 12.5T (PAL: 10T) portion of bowtie signal, adjust so that the waveform satisfies the specification.
  • Page 254 (17) To exit the maintenance mode, press the MENU button three times again. (18) Stop the playback of the alignment tape CR5-1B/CR5-1B PS or eject it. It is not necessary to eject the alignment tape when perform subsequent “7. Impact Error Offset Adjustment”. 6-102 DNW-A22/A22P...
  • Page 255 (1) Playback the color-bar signal portion (26:00 to 28:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (2) Adjust the following RVs until disappear the drop-out parts (Y DO and C DO) of displaying color- bar on the video monitor.
  • Page 256 METAL adjustment [to step (10)] (8) Playback the bowtie signal portion (17:00 to 19:00) of the alignment tape CR5-1B or CR5-1B PS. (DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS) (9) Observe the 12.5T (PAL: 10T) portion of bowtie signal, adjust so that the waveform satisfies the specification.
  • Page 257 OXIDE adjustment [to step (13)] (11) Playback the bowtie signal portion (6:00 to 9:00) of the alignment tape CR5-2A or CR5-2A PS. (DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS) (12) Observe the 12.5T (PAL: 10T) portion of bowtie signal, adjust so that the waveform satisfies the specification.
  • Page 258 . 75 Z terminator (1 pc.) . 75 Z BNC T adapter (1 pc.) . Composite video monitor(s): Sony’s BVM series, PVM series, etc. . For NTSC (525/60 system) and PAL (625/50 system) are required. . Having the switchable monitor of the NTSC and PAL is a convenience.
  • Page 259 Composite video output level adjustment (Another system) A20 : VPR VR : VIDEO 1 LEVEL VIDEO OUTPUT COMPOSITE 1 A20 : VPR VR : VIDEO 2 LEVEL VIDEO OUTPUT COMPOSITE 2 Data save A2F : NV-RAM CONTROL Another system completion 6-107 DNW-A22/A22P...
  • Page 260 If DNW is under another system, return it to the standard system with the setup menu ITEM-013 : 525/625 SYSTEM SELECT. (Refer to Section 5-2-2 in the operation manual.) Model Standard system Another system DNW-A22 Lights 525 indicator Lights 625 indicator DNW-A22P Lights 625 indicator...
  • Page 261 (1) To set the cursor (* mark) to A2F : NV-RAM CONTROL, turn the search dial. (2) Press the SET button once. (3) To set the cursor (* mark) to “SAVE ALL ADJUST DATA”, turn the search dial. (4) Press the SET button once. 6-109 DNW-A22/A22P...
  • Page 262 (1) Connect the composite waveform monitor and video monitor as shown above figure’s Connection 1. (2) Playback the 100 % color-bar portion (0:00 to 10:00) of the alignment tape SR5-1 or SR5-1P SR5-1: for DNW-A22 SR5-1P: for DNW-A22P (3) To enter the maintenance mode, press S1101 (G-1) on the SS-63 board.
  • Page 263 (1) Switch DNW to another system with the setup menu ITEM-013. (Refer to Section 5-2-2 in the operation manual.) Another system for DNW-A22 is the 625/50 system. Another system for DNW-A22P is the 525/60 system. (2) Connect the video monitor corresponding to another system to VIDEO OUTPUT COMPOSITE 2 (SUPER) connector.
  • Page 264 (3) Playback the 100 % color-bar portion (0:00 to 10:00) of the alignment tape SR5-1 or SR-5-1P. SR5-1: for DNW-A22P SR5-1P: for DNW-A22 (4) To enter the maintenance mode, press S1101 (G-1) on the SS-63 board. (5) Enter A2 : AUDIO/VIDEO ADJUST.
  • Page 265 4. Another System Completion Return DNW to the standard system with setup extended menu ITEM-013. (Refer to Section 5-2-2 in the operation manual.) Standard system for DNW-A22 is the 525/60 system. Standard system for DNW-A22P is the 625/50 system. 6-113...

  • Page 267: Spare Parts

    2. Standardization of Parts Some repair parts supplied by Sony differ from those used for the unit. These are because of parts commonality and improvement. Parts list has the present standardized repair parts.

  • Page 268: Exploded Views

    7-685-247-19 s SCREW +K 3x10 TAPPING TYPE2 7-685-871-09 s SCREW +BVTT 3x6(S) 3-180-822-05 s KEY TOP, 6x6(LED,BLACK) 3-180-822-13 s KEY TOP, 6x6(LED,GRAY) 3-184-994-03 o ISR STICKER (S) 3-604-813-02 o A/D LABEL 3-608-553-01 o LABEL, MODEL NUMBER(for NTSC) 3-608-552-01 o LABEL, MODEL NUMBER(for PAL) DNW-A22/A22P...
  • Page 269 3-604-930-01 s FOOT, RUBBER 7-682-666-09 s SCREW +PS 4x20 3-642-656-01 s FOOT, PLASTIC (When the foot made of plastic.) 3-615-215-01 o CAUSION LABEL, SCREW 3-688-102-01 o SPACER, M4 7-623-923-01 s WASHER 2.6x3.0, PLASTIC 7-682-547-09 s SCREW +B 3x6 3-696-847-02 o CABINET (LEFT) DNW-A22/A22P...

  • Page 270: Plug-In Boards

    No. Board name Part No. SP Description APR-12 A-8315-610-A o MOUNTED CIRCUIT BOARD, APR-12F (for DNW-A22) A-8315-691-A o MOUNTED CIRCUIT BOARD, APR-12FP (for DNW-A22P) DM-89 A-8275-154-B o MOUNTED CIRCUIT BOARD, DM-89 (for DNW-A22) A-8275-088-B o MOUNTED CIRCUIT BOARD, DM-89P (for DNW-A22P)

  • Page 271: Packing Materials And Supplied Accessories

    8-960-075-11 o ALIGNMENT TAPE, SR2-1 (for 525/60 system) 8-960-075-51 o ALIGNMENT TAPE, SR5-1P (for 625/50 system) 8-960-075-61 o ALIGNMENT TAPE, SR2-1P (for 625/50 system) 8-960-096-01 o ALIGNMENT TAPE, CR2-1B (for DNW-A22 only) 8-960-096-41 o ALIGNMENT TAPE, CR5-1B (METAL PARTICLE TAPE) (for DNW-A22 only)

  • Page 273: Appendix A Setting Check Sheet

    Write down the value of hours meter when checking, servicing and maintaining. ITEM Date Hours meter H01: OPERATION HOURS H02: DRUM RUNNING HOURS H03: TAPE RUNNING HOURS H04: THREADING COUNTER H12: DRUM RUNNING HOURS(Resettable) H13: TAPE RUNNING HOURS(Resettable) H14: THREADING COUNTER(Resettable) H15: AIRFILTER OPERATION HOURS(Resettable) DNW-A22/A22P...
  • Page 274 Variable SS-63 Factory use COR100 OPEN Factory use COR101 OPEN Factory use COR102 OPEN Factory use COR103 SHORT Factory use COR104 SHORT *1: Board number 1-661-127-13 only. *2: COR103 and 104 have no plug, but are shorted by pattern. DNW-A22/A22P...
  • Page 275 OFF (OPEN) OFF (OPEN) ON (CLOSE) ON (CLOSE) OFF (OPEN) : J/SY ON (CLOSE) : 525/625 DNW-A22: OFF (OPEN) DNW-A22P: ON (CLOSE) S1900 1 _ 8 : Factory use OFF (OPEN) *1, *2: Never change the switches S101-1 and S101-4.
  • Page 276 B14: SAVE BANK 4 B20: RESET SETUP Extended Menu ITEM-100 series: Operational panel parameter ITEM Factory setting Current Bank 1 Bank 2 Bank 3 Bank 4 101: SELECTION FOR SEARCH DIAL ENABLE DIAL 102: MAXIMUM TAPE SPEED 104: AUDIO MUTING TIME DNW-A22/A22P...
  • Page 277 In the normal operation, use the factory settings. ITEM Factory setting Current Bank 1 Bank 2 Bank 3 Bank 4 F01: AUDIO NR IN SP MODE F02: EMERGENCY TAPE PROTECTION F13: TRACKING CONTROL VIA SEARCH DIAL F16: DEVICE TYPE MODIFY F34: STOP PINCH OFF TIME 5MIN DNW-A22/A22P...
  • Page 278 B14: SAVE BANK 4 B20: RESET SETUP Extended Menu ITEM-100 series: Operational panel parameter ITEM Factory setting Current Bank 1 Bank 2 Bank 3 Bank 4 101: SELECTION FOR SEARCH DIAL ENABLE DIAL 102: MAXIMUM TAPE SPEED 104: AUDIO MUTING TIME DNW-A22/A22P...
  • Page 279 In the normal operation, use the factory settings. ITEM Factory setting Current Bank 1 Bank 2 Bank 3 Bank 4 F01: AUDIO NR IN SP MODE F02: EMERGNECY TAPE PROTECTION F13: TRACKING CONTROL VIA SEARCH DIAL F16: DEVICE TYPE MODIFY F34: STOP PINCH OFF TIME 5MIN DNW-A22/A22P...

  • Page 281: Index

    L CH OUT AUDIO DEPACK PROCESS AUDIO MONITOR(L/R)ch MONITOR PROSESS FILTER R CH OUT TP500 IC605 ANALOG BETACAM DOLBY C AUDIO CH1 TP600 NOISE REDUCTION ANALOG BETACAM AUDIO CH2 TP201 TP101 IC180 AU(1/2)ch SIGNAL PROCESSING SYSTEM OVERALL (1/2) DNW-A22/A22P DNW-A22/A22P...
  • Page 282 S101-113 GATE TBC-23 HEAD SEL IC1504 ENCODE IC202 IC101-104 40 MHz MATRIX 20 MHz TBC CONTROL X200 SUB CONTROL IC200 DRUM ASSEMBLY BLOCK 10, 8, 5, 2.5 MHz PANEL NV-RAM HEAD CONTROL DECODE ANALOG BETACAM PB TBC ROTALY TRANS DNW-A22/A22P...

  • Page 283: Overall (1/2

    THREADING MOTOR FG IC402 CCM-15(T) THREADING MOTOR M003 DRIVER THREADING MOTOR CONDENSATION SENSOR DETECT SE-341 IC106 FG,PG SHAPER REC GUARD DRUM MOTOR BLOCK IC102-105 M001 DRUM M FG PG MOTOR DRUM MOTOR DRIVER SERVO/SYSTEM CONTROL SYSTEM OVERALL (2/2) DNW-A22/A22P DNW-A22/A22P...
  • Page 285 The material contained in this manual consists of screws, and all other exposed metal parts for AC information that is the property of Sony Corporation and leakage. Check leakage as described below. is intended solely for use by the purchasers of the equipment described in this manual.
  • Page 286 DNW-A22 (SY) Printed in Japan Sony Corporation DNW-A22P (SY) E 2001. 6 08 B&P Company ©1997 3-193-847-06...

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