Emerson EWV401B Service Manual
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Emerson EWV401B Service Manual

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SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA's
VIDEO CASSETTE RECORDER
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
EWV401B
POWER
VIDEO
AUDIO
VCR/TV
EWV601B
VIDEO
L AUDIO R
POWER
VCR/TV
TAPE SPEED
POWER
VCR/TV
TAPE IN
TIMER
REC
TAPE SPEED
POWER
VCR/TV
TAPE IN
TIMER
REC
Sec. 3: Exploded views
and Parts List Section
I Exploded views
I Parts List
PLAY
REW
F.FWD
PAUSE
REC
STILL
OTR
CHANNEL
MENU
PLAY
REW
F.FWD
PAUSE
REC
STILL
OTR
CHANNEL
MENU
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Summary of Contents for Emerson EWV401B

  • Page 1 I Preparation for Servicing I Exploded views I Disassembly/Assembly of Mechanism I Parts List I Adjustment Procedures I Alignment Procedures of Mechanism I Schematic Diagrams I CBA’s VIDEO CASSETTE RECORDER EWV401B PLAY F.FWD PAUSE STILL POWER TAPE SPEED CHANNEL VIDEO...
  • Page 2 IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.

  • Page 3: Table Of Contents

    MAIN SECTION VIDEO CASSETTE RECORDER EWV401B/EWV601B Sec. 1: Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s TABLE OF CONTENTS Specifications................1-1-1 Important Safety Precautions.

  • Page 4: Specifications

    SPECIFICATIONS Description Unit Minimum Nominal Maximum Remark 1. Video 1-1. Video Output (PB) Vp-p SP Mode 1-2. Video Output (R/P) Vp-p SP Mode, 1-3. Video S/N Y (R/P) W/O Burst 1-4. Video Color S/N AM (R/P) SP Mode 1-5. Video Color S/N PM (R/P) SP Mode 1-6.

  • Page 5: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Product Safety Notice I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder Some electrical and mechanical parts have special droplets, etc.) do not remain inside the set. safety-related characteristics which are often not evi- K.
  • Page 6 Safety Check after Servicing Examine the area surrounding the repaired location for Chassis or Secondary Conductor damage or deterioration. Observe that screws, parts, and wires have been returned to their original posi- tions. Afterwards, do the following tests and confirm Primary Circuit Terminals the specified values to verify compliance with safety standards.

  • Page 7: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC a. The output pin of the 3 pin Regulator ICs is indi- 1. Removal cated as shown. With Hot-Air Flat Pack-IC Desoldering Machine: (1) Prepare the hot-air flat pack-IC desoldering Top View Bottom View machine, then apply hot air to the Flat Pack-IC...
  • Page 8 With Soldering Iron: (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from all soldering iron to center of the flat pack-IC and heat pins of the flat pack-IC.
  • Page 9 Instructions for Handling 2. Installation Semi-conductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA Electrostatic breakdown of the semi-conductors may so you can install a replacement flat pack-IC more occur due to a potential difference caused by electro- easily.

  • Page 10: Preparation For Servicing

    PREPARATION FOR SERVICING How to Enter the Service Mode About REC-Safety Switch Caution: The REC-Safety Switch is directly mounted on the About Optical Sensors Main CBA. When the Deck Mechanism Assembly is Caution: removed from the Main CBA for servicing, this switch does not work automatically.

  • Page 11: Operating Controls And Functions

    OPERATING CONTROLS AND FUNCTIONS [ EWV401B ] [ EWV601B ] DESCRIPTION OF CONTROLS DESCRIPTION OF CONTROLS Front Panel Front Panel PLAY PLAY F.FWD F.FWD PAUSE PAUSE STILL STILL TAPE SPEED CHANNEL VIDEO AUDIO POWER VCR/TV POWER VCR/TV TAPE IN TIMER...

  • Page 12: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart (1): Identification (location) No. of parts in the figures (2): Name of the part This flowchart indicates the disassembly steps to gain (3): Figure Number for reference access to item(s) to be serviced. When reassembling, (4): Identification of parts to be removed, unhooked, follow the steps in reverse order.
  • Page 13 Cylinder FE Head (L-2) Assembly (L-2) AC Head Assembly [5] Deck Assembly [2] Front Assembly (S-3) (L-1) Fig. D2 (S-3) (S-2) (S-2) Desolder [6] Main C.B.A. [3]VCR Desolder Chassis Unit (S-3) [4] Function C.B.A. From From From Capstan Motor From Cylinder AC Head Assembly...
  • Page 14 SW507 LD-SW [6]Main CBA [5]Deck Assembly Cam Gear Hole Shaft Hole LD-SW [6]Main CBA Fig. D5 1-6-3 HB300DC...

  • Page 15: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is an abbreviation for "Circuit Board Assembly." NOTE: Figure 1 1.Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to do these adjustments only after EXT. Syncronize Trigger Point all repairs and replacements have been com- V-Sync pleted.

  • Page 16: Block Diagrams

    BLOCK DIAGRAMS Servo/System Control Block Diagram MAIN CBA IC501 TP502 (SERVO/SYSTEM CONTROL) CL507 CN651 S-INH AL+5V IC301 (Y/C PROCESS) KEY 2 KEY SWITCH FUNCTION CBA CONTROL KEY- 1 SWITCH (DECK ASSEMBLY) TP303 KEY- 2 D555 RS501 23 19 S-LED REMOTE D595 P-ON REMOCON-IN SENSOR...
  • Page 17 Video Block Diagram NOTE: The Tuner Unit (TU701) is either type A or type B. Wave Form will be different. It depends on the type of tuner used on the unit you are servicing. REC VIDEO SIGNAL PB VIDEO SIGNAL MODE: SP/REC TP751 MAIN CBA...
  • Page 18 PB-AUDIO SIGNAL REC-AUDIO SIGNAL of tuner used on the unit you are servicing. Mode : SP/REC TYPE B TU701 EWV601B J192 MAIN CBA SIF OUT 15 EWV401B J193 AUDIO-OUT AUDIO-IN WF13 TYPE A EWV601B TU701 EWV401B SIF OUT 22 EWV401B...
  • Page 19 Hi-Fi Audio Block Diagram ( EWV601B ) PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC MAIN CBA IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP) NOISE Hi-Fi-CS SERIAL FROM Hi-Fi-DATA DATA SERVO/ SYSTEM Hi-Fi-CLK CONTROL BLOCK DECODER ST/SAP DEMOD FILTER DEMOD MATRIX DEMOD...
  • Page 20 Power Supply Block Diagram NOTE : CAUTION CAUTION ! The voltage for parts in hot circuit is measured using FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage power supply circuit is used in this unit. hot GND as a common terminal. REPLACE ONLY WITH THE SAME TYPE FUSE.

  • Page 21: Function Indicator Symbols

    FUNCTION INDICATOR SYMBOLS Note: The following symbols will appear on the indicator panel to indicate the current mode or operation of the VCR. On-screen modes will also be momentarily displayed on the tv screen when you press the operation buttons. Display panel POWER VCR/TV TAPE IN TIMER...

  • Page 22: Power Supply Trouble Shooting Guide

    Power Supply Trouble Shooting Guide It is highly recommended that a variable isolation If the tester does not indicate any low resistance value transformer which can monitor current be used. (around 0 ohm), no load is short-circuited and there is (Alternatively a variable AC source which moni- no problem.

  • Page 23: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Notes: WARNING 1. Do not use the part number shown on these draw- ings for ordering. The correct part number is shown Many electrical and mechanical parts in this chassis in the parts list, and may be slightly different or have special characteristics.
  • Page 24 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
  • Page 25 Main 1/3 Schematic Diagram ( EWV401B ) REC Video Signal PB Video Signal Main 1/4 Schematic Diagram ( EWV601B ) Note: Main 1/3 Schematic Diagram When it is necessary to replace one or more of the following Diodes, all five should be replaced: D595, D596, D597, D598, D599.
  • Page 26 Main 2/3 Schematic Diagram ( EWV401B ) Note: Main 2/4 Schematic Diagram ( EWV601B ) The Tuner Unit ( TU701 ) is either type A or type B. These two types are exchangeable and can be equally used REC Video Signal PB Video Signal whichever the model is.
  • Page 27 Main 3/3 Schematic Diagram Main 3/3 Schematic Diagram ( EWV401B ) (EWV401B) Main 3/4 Schematic Diagram ( EWV601B ) Main 3/4 Schematic Diagram (EWV601B) Ref.No Position CAUTION ! CAUTION IC001 Fixed voltage power supply circuit is used in this unit.
  • Page 28 Main 4/4 Schematic Diagram ( EWV601B ) REC Video Signal PB Video Signal REC Audio Signal PB Audio Signal HB4J1SCM4 1-9-11 1-9-12...
  • Page 29 Function Schematic Diagram HB3J1SCF 1-9-13 1-9-14...
  • Page 30 Function CBA Top View Function CBA Bottom View Function CBA Top View Function CBA Bottom View NOTE : Either BHB400F01016, BHB400F01017 is used for the Function CBA in this S/M. BHB400F01016-B BHB400F01017-B 1-9-15 1-9-16...
  • Page 31 Main CBA Top View CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES Fixed voltage power supply circuit is used in this unit. SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED.
  • Page 32 Main CBA Bottom View CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. CAUTION ! ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER Fixed voltage power supply circuit is used in this unit. D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
  • Page 33 Main CBA Top View CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. CAUTION ! ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER Fixed voltage power supply circuit is used in this unit. D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
  • Page 34 Main CBA Bottom View CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. CAUTION ! ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER Fixed voltage power supply circuit is used in this unit. D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.

  • Page 35: Waveforms

    WAVEFORMS NOTE: The Tuner Unit (TU701) is either type A or type B. Wave Form will be different. It depends on the type of tuner used on the unit you are servicing. WF14 WF 1 V-OUT E-E 10usec 50mV x 10 MOD-V 20mV x 10 2msec...

  • Page 36: Wiring Diagrams

    WIRING DIAGRAM AC CORD FRONT REAR (DECK ASSEMBLY) VIDEO AUDIO AUDIO VIDEO AUDIO AUDIO VIDEO AUDIO AUDIO IN (R) IN (L) IN (R) IN (L) OUT (R) OUT (L) ANT-IN ANT-OUT AC HEAD ASSEMBLY EWV601B CL504 AUDIO AE-H ERASE HEAD AE-H/FE-H A-COM AUDIO HEAD...

  • Page 37: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Mode SW : LD-SW LD-SW Position detection A/D Input voltage Limit Symbol (Calculated voltage) 3.76V~4.50V (4.12V) 4.51V~5.00V (5.00V) 0.00V~0.25V (0.00V) 1.06V~1.50V (1.21V) 0.66V~1.05V (0.91V) 1.99V~2.60V (2.17V) 1.51V~1.98V (1.80V) 3.20V~3.75V (3.40V) 0.26V~0.65V (0.44V) 4.51V~5.00V (5.00V) 2.61V~3.19V (2.97V) Note: Note : RS: Loading FWD (LM-FWD “H”, LM-REV “L”)
  • Page 38 13 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" 5 C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value 37 PB CTL Reversal Limit Value 10 C-F/R 11 H-A-SW 12 ROTA STILL...
  • Page 39 13 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" 5 C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value 37 PB CTL Reversal Limit Value 10 C-F/R 11 H-A-SW 12 ROTA STILL...
  • Page 40 EJECT ST-S,/ END-S "OFF" CASS.LOAD LD-FWD 0.2S LD-REV 0.7S LD-FWD 0.2S LD-REV 0.2S LD-FWD 0.5S LD-REV STOP(A) PLAY LD-FWD PLAY LD-FWD 0.4S LD-FWD LD-REV 0.2S LD-FWD PLAY PLAY PAUSE (SLOW) LD-FWD STILL(SLOW) PLAY LD-REV 0.2S LD-FWD PLAY STOP /EJECT LD-REV STOP(A) Fig.
  • Page 41 STOP(A) STOP LD-REV 0.2S LD-FWD STOP /EJECT LD-REV 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-REV 0.2S LD-FWD STOP /EJECT LD-REV 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-FWD PAUSE LD-FWD 2.5S Short REV LD-REV 0.2S LD-FWD REC PAUSE REC or PAUSE STOP /EJECT LD-FWD 1.5S LD-REV...

  • Page 42: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS Comparison Chart of Models and Marks Signal Active Mark Function Name Level Model Mark Head Amp EWV401B H-A- Comparator COMP Signal EWV601B Color Phase Rotary OUT C-ROTA IC501( SERVO / SYSTEM CONTROL IC ) Changeover SIgnal “H”...
  • Page 43 Signal Active Signal Active Mark Function Mark Function Name Level Name Level Composite Capstan Motor OSD- BB- Video Rotation C-FG PULSE Signal Output Detection (Blue Back) Pulse OSD- Character Drum Motor CHARA- Output (Super- Rotation D-FG PULSE imposed) Detection Pulse OSDVcc OSDVcc Drum Motor...
  • Page 44 Signal Active Signal Active Mark Function Mark Function Name Level Name Level Automatic N.U. Not Used Frequency N.U. Not Used Control Signal N.U. Not Used Video Envelope N.U. Not Used V-ENV Comparator Signal N.U. Not Used Video Head N.U. Not Used Switching N.U.

  • Page 45: Lead Identifications

    LEAD IDENTIFICATIONS BN1F4M-T 2SC1815-BL(TPE2) BA1F4M-T 2SC1815-Y(TPE2) KTA1266(GR) 2SC1815-GR(TPE2) KTC3193(Y) 2SC3331(T,U) KTC3199(Y,GR,BL) 2SC2120-Y(TPE2) 2SC2785(J.H.F.K) KTC3203(Y) KTA1267(Y,GR) KTC3198(Y,GR) KRC103M 2SA1015-GR(TPE2) KRA103M 2SA1175(J,H,F) E C B E C B LTV-817(B.C)-F QSZAA0RMB108 2SC536NF(NG)-NPA-AT EL817(A.B.C) LA71091M MID-32A22 2SK3374 72655M PT204-6B-12 2SK3472 2SK2599 Note: A: Anode K: Cathode E: Emitter C: Collector...
  • Page 46 DECK MECHANISM SECTION VIDEO CASSETTE RECORDER EWV401B/EWV601B Sec. 2: Deck Mechanism Section I Standard Maintenance I Alignment for Mechanism I Disassembly/Assembly of Mechanism I Alignment Procedures of Mechanism TABLE OF CONTENTS Standard Maintenance..............2-1-1 Service Fixtures and Tools .

  • Page 47: Standard Maintenance

    STANDARD MAINTENANCE Service Schedule of Components H: Hours : Check I: Change Deck Periodic Service Schedule Ref.No. Part Name 1,000 H 2,000 H 3,000 H 4,000 H Cylinder Assembly Loading Motor Assembly Pulley Assembly Tension Lever Sub Assembly AC Head Assembly B573,B574 Reel S, Reel T Capstan Motor...
  • Page 48 Cleaning Cleaning of Audio Control Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% isopropyl alcohol and Procedure clean the audio control head.

  • Page 49: Service Fixtures And Tools

    SERVICE FIXTURE AND TOOLS J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape FL8A Head Adjustment of Audio Control Head J-1-2 Alignment Tape FL8N Azimuth and X Value Adjustment of Audio Control (2Head only) Head / Adjustment of Envelope Waveform FL8NW (4Head only) Guide Roller Adj.Screwdriver...

  • Page 50: Mechanical Alignment Procedures

    MECHANICAL ALIGNMENT PROCEDURES Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.
  • Page 51 1.Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (FL8NW) Guide Roller Adj.
  • Page 52 1-A. Preliminary/Final Checking and 3. Check to see that the tape runs without creasing at Alignment of Tape Path Take-up Guide Post [4] or without snaking between Guide Roller [3] and AC Head. (Fig. M3 and M5) Purpose: 4. If creasing or snaking is apparent, adjust the Tilt To make sure that the tape path is well stabilized.
  • Page 53 6. Press CH DOWN button on the unit until the CTL 1-D. Azimuth Alignment of Audio/Control/ waveform has shifted from its original position (not Erase Head the position achieved in step 5, but the position of Purpose: CTL waveform in step 4) by approximately -2msec. To correct the Azimuth alignment so that the Audio/ Make sure that the envelope is simply attenuated Control/Erase Head meets tape tracks properly.

  • Page 54: Disassembly/Assembly Procedures Of Deck Mechanism

    DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS on page 1-6-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 55 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER [33] [2],[25] M Brake T Assembly DM1,DM16 *(P-6) [34] [2],[25] M Brake S Assembly DM1,DM16 *(P-7) Tension Lever Sub [35] [34] DM1,DM16 Assembly [36] [35] T Lever Holder DM1,DM16 *(L-6) [37] [33]...
  • Page 56 Top View [41] [42] [46] [43] [14] [13] [11] [15] [35] [36] [10] [12] [34] [33] [40] [29] [38] [37] [39] Fig. DM1 Bottom View [19] [32] [31] [24] [26] [27] [25] [23] [28] [22] [20] [21] [30] Fig. DM2 2-4-3 U25NDA...
  • Page 57 (S-1) (S-1) (S-2) (P-1) (S-3) (S-4) Fig. DM5 Fig. DM3 [46] Type A Pin D Type B [47] Pin C [46] (L-9) Pull up Slide Pin A (L-8) Pin B Slot A Slots B (S-5) Slot A First, while pushing the locking tab as shown in the right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A.
  • Page 58 (S-7) (S-8) [14] (S-9) [15] Desolder from bottom (S-6) Lead with White Stripe Belt View for A Fig. DM7 Fig. DM9 Adj. Screw [17] After removing the Screw (S-10), [11] while pressing the Locking Tab (L-1) (L-3) (L-2) (L-3), remove [16]. (P-3) [16] [13]...
  • Page 59 Cap Belt Portions A on [21] must be set in the slot on [20] as shown. (C-1) [19] [20] Portions A Portions A View for A [21] Fig. DM12 (S-11) Fig. DM11 2-4-6 U25NDA...
  • Page 60 [25] (C-2) (C-5) (C-3) [22] [23] (S-12) (P-4) [27] (L-4) (C-4) [26] [28] [24] (P-4) [28] When installing [23], install the spring (P-4) to [28] as Position of Mode Lever when installed shown in the left figure, and then install [23] while Pin on Pin of [34] Pin of [30]...
  • Page 61 Refer to the Alignment Section, Page 2-4-9. [42] [41] [43] (P-5) [30] (L-7) [32] [29] [31] (L-5) Fig. DM17 Fig. DM15 [35] (C-7) [38] (C-6) (P-7) [40] [37] turn (L-6) [39] [44] [45] Slide (P-6) [34] turn [33] [36] Fig. DM18 turn Fig.

  • Page 62: Alignment Procedures Of Mechanism

    ALIGNMENT PROCEDURES OF MECHANISM The following procedures describe how to align the Alignment 1 individual gears and levers that make up the tape Loading Arm, S and T Assembly loading/unloading mechanism. Since information about the state of the mechanism is provided to the Install Loading Arm S and T Assembly so that their System Control Circuit only through the Mode Switch, triangle marks point to each other as shown in Fig.
  • Page 63 Alignment 3 Cam Gear (A), Rack Assembly Install the Rack Assembly so that the first tooth on the gear of the Rack Assembly meets the first groove on the Cam Gear (A) as shown in Fig. AL4. Top View Cam Gear (A) Alignment 3 First tooth First groove...
  • Page 64 EXPLODED VIEWS AND PARTS LIST SECTION VIDEO CASSETTE RECORDER EWV401B/EWV601B Sec. 3: Exploded views and Parts List Section I Exploded views I Parts List TABLE OF CONTENTS Exploded Views ............... . 3-1-1 Mechanical Parts List.

  • Page 65: Exploded Views

    EXPLODED VIEWS Front Panel 3-1-1 HB3J1FEX...
  • Page 66 Cabinet 2L011 See Electrical Parts List for parts with this mark. 2L011 Some Ref. Numbers are not in sequence. 2L011 2L021 [ EWV601B ] 2L021 2L021 2L021 2L021 SENSOR CBA 2B34 2L031 SENSOR CBA MAIN CBA [ EWV601B ] RS501 2L031 2L099 FUNCTION CBA...
  • Page 67 Packing Some Ref. Numbers are not in sequence. Unit 2B36 3-1-3 HB340PEX...
  • Page 68 DECK EXPLODED VIEWS Deck Mechanism View 1 Mark Description Part No. (Blue grease) Floil G-374G 0VZZ00109 SLIDUS OIL #150 0VZZ00226 L1467 B494 B553 L1191 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) B501 B560 L1450 B426 L1466 B121 B126 L1468...
  • Page 69 Deck Mechanism View 2 Mark Description Part No. Floil G-374G (Blue grease) 0VZZ00109 SANKOUL FG84M (Yellow grease) 0VZZ00062 B574 B508 B148 B573 B487 L1406 B522 B518 B520 B521 B414 B564 B499 B558 B585 B557 B416 B572 B565 B525 L1151 B417 B568 B569 B133...
  • Page 70 Deck Mechanism View 3 Mark Description Part No. Floil G-374G (Blue grease) 0VZZ00109 L1321 B347 Note: There are two different, but interchangeable types of CLEANER LEVER(B359) in this model, and have different combination with B361. Please L1321 see Table 1 for details and combination. (Refer to DECK PARTS LIST section on page 3-4-1.) Table 1 (B359 and B361 Combination) B359 CLEANER LEVER...

  • Page 71: Mechanical Parts List

    Comparison Chart of Models and Marks X20# OWNER'S MANUAL HB3J1UD 0VMN03075 X20# OWNER'S MANUAL HB4J1UD 0VMN03076 Model Mark RETURN STOP SHEET HB4J0UD 0VM412833 EWV401B EWV601B Ref. No. Mark Description Part No. FRONT ASSEMBLY HB3J0UD 0VM203399 FRONT ASSEMBLY HB4J1UD 0VM203592 CASE, TOP(U23) H7700UD 0VM100923B...

  • Page 72: Electrical Parts List

    CHD1JZ3FZ104 Model Mark C301 ELECTROLYTIC CAP. 4.7µF/25V M H7 CE1EMAVSL4R7 C303 ELECTROLYTIC CAP. 47µF/6.3V M H7 CE0KMAVSL470 EWV401B C304 CHIP CERAMIC CAP.(MELF) Y K 1000pF/ CZM1GKB0Y102 EWV601B 35V or CHIP CERAMIC CAP.(MELF) Y K 1000pF/ CZM1GK30Y102 MCV CBA 35V or CHIP CERAMIC CAP.
  • Page 73 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C314 CHIP CERAMIC CAP.(MELF) SL J 100pF/ CZM1JJBSL101 CHIP CERAMIC CAP.(MELF) F Z 0.01µF/16V CZM1CZ30F103 50V or C353 CHIP CERAMIC CAP. B K 0.01µF/50V or CHD1JKB0B103 CHIP CERAMIC CAP.(MELF) SL J 100pF/ CZM1JJ3SL101 CHIP CERAMIC CAP.
  • Page 74 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C419 CHIP CERAMIC CAP. B K 0.01µF/50V or CHD1JKB0B103 C482 ELECTROLYTIC CAP. 4.7µF/25V M H7 CE1EMAVSL4R7 CHIP CERAMIC CAP. B K 0.01µF/50V CHD1JK30B103 C483 ELECTROLYTIC CAP. 22µF/16V M H7 CE1CMAVSL220 C422 ELECTROLYTIC CAP.
  • Page 75 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP CERAMIC CAP. CH J 100pF/50V or CHD1JJBCH101 DIODES CHIP CERAMIC CAP. CG J 100pF/50V or CHD1JJBCG101 D001 RECTIFIER DIODE 1N4005 NDQZ001N4005 CHIP CERAMIC CAP. CH J 100pF/50V or CHD1JJ3CH101 D002 RECTIFIER DIODE 1N4005...
  • Page 76 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. IC451 IC:HIFI LA72655M QSZBA0RSY024 Q422 TRANSISTOR KTC3203(Y) or NQSY0KTC3203 IC501 MICROCONTROLLER 16BIT M37768M6A- QSZAA0RMB108 TRANSISTOR 2SC2120-Y(TPE2) QQSY02SC2120 1C7GP Q425 RES. BUILT-IN TRANSISTOR KRA103M or NQSZ0KRA103M COILS RES. BUILT-IN TRANSISTOR BN1F4M-T QQSZ00BN1F4M L001# LINE FILTER 4.5MH SA-00411B or...
  • Page 77 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W J 8.2k Ω CHIP RES.(1608) 1/10W J 4.7k Ω or RRXAJR5Z0822 R341 RRXAJB5Z0472 CHIP RES.(1608) 1/10W J 4.7k Ω or CHIP RES.(1608) 1/10W J 4.7k Ω R084 RRXAJB5Z0472 RRXAJR5Z0472...
  • Page 78 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W J 22k Ω or CHIP RES.(1608) 1/10W J 68k Ω R422 RRXAJB5Z0223 RRXAJR5Z0683 CHIP RES.(1608) 1/10W J 22k Ω CHIP RES.(1608) 1/10W J 220k Ω or RRXAJR5Z0223 R513 RRXAJB5Z0224...
  • Page 79 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W J 10k Ω RRXAJR5Z0103 AC CORD PB8K9F9110A-057 WAC0172LW008 CHIP RES.(1608) 1/10W J 10k Ω or R606 RRXAJB5Z0103 F001# FUSE SIC 1A 250V UC/T or PAGG20CW3102 CHIP RES.(1608) 1/10W J 10k Ω...
  • Page 80 FUNCTION CBA Ref. No. Mark Description Part No. FUNCTION CBA (MCV-B) -------------- Consists of the following CONNECTOR CN651 ANGLE PIN HEADER, 3P 6029B-1-03Z002-T 5700063 RESISTORS R650 PCB JUMPER D0.6-P5.0 JW5.0T CHIP RES.(1608) 1/10W J 1.8k Ω or R651 RRXAJB5Z0182 CHIP RES.(1608) 1/10W J 1.8k Ω RRXAJR5Z0182 CHIP RES.(1608) 1/10W J 1k Ω...

  • Page 81: Deck Parts List

    Comparison Chart of Models and Marks B502 CAM GEAR(B) MK10 0VM304403 B505 PSCW(625504) MK11 0VM413288 Model Mark B507 REEL WASHER MK9 5*2.1*0.5 0VM410058 EWV401B B508 S BRAKE SPRING MK10 0VM411121 EWV601B B513 PSCW(752605) MK10 0VM411516 B514 SCREW RACK MK11 or 0VM412597 SCREW RACK MK10 0VM411535 Ref.
  • Page 82 Ref. No. Mark Description Part No. B529 CLEANER ASSEMBLY MK11 0VSA12086 B551 FF ARM MK11 0VM305069 B553 REV SPRING MK11 0VM412555 B555 RACK ASSEMBLY MK11 or 0VSA12071 RACK ASSEMBLY(T1.2) MK11 0VSA12887 B557 MOTOR PULLEY U5 0VM403205A B558 LOADING MOTOR M31E-1 R14 7351 MMDZB12MM002 B559 CLUTCH ASSEMBLY MK11...
  • Page 83 Printed in Japan 2002-05-01 HO...

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