Hitachi 42HDT79/DW2-U Service Manual
  1. Manuals
  2. Brands
  3. Hitachi Manuals
  4. Monitor
  5. 42HDT79/DW2-U
  6. Service manual

Hitachi 42HDT79/DW2-U Service Manual

Hide thumbs Also See for 42HDT79/DW2-U:
Table of Contents

Quick Links

SERVICE MANUAL
N T S C
A T S C
SERVICE MANUAL REVISION HISTORY INFORMATION
DATE
Apr , 28
09.27.06
02.06.07
02.22.07
04.19.07
05.03.07
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
APRIL 2006
DW 2-U
C hassis
REVISON #
SM00001
FIRST ISSUE OF MANUAL
Part Numbers Changed
CH 1
CH 2
Change 1 updated part description information
Revised Service Menu sequence on pages 44 and 45
CH 3
(FACT RESET >< MEMORY INIT)
CH 4
Updated part number information link
CH 5
Changed text, Increase > Decrease
PLASMA DISPLAY PANEL
PA
42HDX99/DW2-U
42HDT79/DW2-U
42HDS69/DW2-U
R/C: CLU-4352UG2 42HDS69
R/C: CLU-3861WL 42HDT79/42HDX99
REASON
HHEA-MANUFACTURING DIVISION
No. 0217
Table of Contents
loading

Related Manuals for Hitachi 42HDT79/DW2-U

Summary of Contents for Hitachi 42HDT79/DW2-U

  • Page 1 No. 0217 42HDX99/DW2-U 42HDT79/DW2-U 42HDS69/DW2-U SERVICE MANUAL N T S C DW 2-U R/C: CLU-4352UG2 42HDS69 R/C: CLU-3861WL 42HDT79/42HDX99 A T S C C hassis SERVICE MANUAL REVISION HISTORY INFORMATION DATE REVISON # REASON Apr , 28 SM00001 FIRST ISSUE OF MANUAL 09.27.06...

  • Page 2: Table Of Contents

    No. 0217 42HDX99/DW2-U 42HDT79/DW2-U 42HDS69/DW2-U SERVICE MANUAL P D D D W1 2 -U N T S C R/C: CLU-4352UG2 42HDS69 R/C: CLU-3861WL 42HDT79/42HDX99 A T S C A C C hassis TO GO TO A CHAPTER, CLICK ON ITS HEADING BELOW CONTENTS SAFETY PRECAUTIONS .

  • Page 3: Safety Precautions

    DW2U SAFETY PRECAUTIONS Comply with all cautions and safety-related notes NOTICE: Leakage Current Hot Check located on or inside the cover case and on the chassis or plasma Plug the AC line cord directly into a 120V AC outlet. (Do not use an module.

  • Page 4: Product Safety Notice

    For the latest information, always the module (glass-panel). consult the current HITACHI Service Manual. A subscription to, 3. Please do not stand the module with the edge of the glass- or additional copies of HITACHI Service Manuals may be panel on the table since this might result in damage to the obtained at a nominal charge from HITACHI Sales Corporation.

  • Page 5: Servicing Precautions

    DW2U SERVICING PRECAUTIONS CAUTION: Before servicing instruments covered by this Electrostatically Sensitive (ES) Devices service data and its supplements and addenda, read and Some semiconductor (solid state) devices can be damaged follow the “Important Safety Instructions” on page 3 of this easily by static electricity.
  • Page 6 5. Inspect (on the circuit board copper side) the solder joints IC Removal/Replacement Some Hitachi unitized chassis circuit boards have slotted of the two “original leads”. If they are not shiny, reheat holes (oblong) through which the IC leads are inserted and them and, if necessary, apply additional solder.
  • Page 7 2. Trace along the copper pattern from both wire sides of ensure the maintenance of reliability and safety standards, the pattern break and locate the nearest component contact your Hitachi personnel. directly connected to the affected copper pattern. At IC Connections 3.
  • Page 8 DW2U NOTE: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless Chip Components How to Replace Flat-lC (surface mount)
  • Page 9 DW2U Information for service about lead-free solder introduction Hitachi introduced lead-free solder to conserve the "Earth Environment". Please refer to the following before servicing. (1) Characteristic of lead-free solder Melting point of lead free solder is 40-50 C higher than solder containing lead.

  • Page 10: Agency Regulatory Information

    Modifications The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Hitachi America ,Ltd. Home Electronics Division may void the user’s authority to operate the equipment. Cables Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods to maintain compliance with FCC Rules and Regulations.

  • Page 11: Acknowledgments And Trademarks

    DW2U ACKNOWLEDGMENTS AND TRADEMARKS This Plasma Television complies with VESA DDC2B specifications, Plug & Play is a system with computer, peripherals (including monitors) and operating system. It works when the monitor is connected to a DDC ready computer that is running an operating system software that is capable for the plug & play. When a Plug and Play PC is powered on, it sends a command to the Monitor requesting identification.

  • Page 12: Introduction

    Digital AV Block and after processing, delivers the image to the display module. This HITACHI Service Manual is intended for the qualified service personnel and it contains the necessary information for troubleshooting the Plasma television set in case of malfunction.

  • Page 13: Specifications

    DW2U SPECIFICATIONS FEATURES A- Plasma Model 42HDS69/42HDT79/42HDX99 Dimension Size 1134mm x 713.2mm x 365mm Weight 39.8k g Input AC Voltage AC108V~132V (with 3 Plug AC Power Cord i nlet A/C Input type ,1.8m length) Voltage Input AC Frequency 60Hz Power Consumption 370W, SBY/POD -SBY less than 1W/14W Front End(NTSC &...
  • Page 14 DW2U SPECIFICATIONS FEATURES Model 42HDS69/42HDT79/42HDX99 General Gamma Correction Only for Service Menu Function Picture Enhancer Input Signal Identification Audio Special Mode Power Save Mode With (On/Off) (Video In) Normal: Blue Power Save: Orange Stand by: Red Burning Protection With (Raster Shift:3 option.AII White Pattern) OSD Language (VIDEO) ENGLISH.FRANCAIS.ESPANOL Power Swivel...
  • Page 15 DW2U FEATURES & DIFFERENCES QAM Basic Model Name Class Chassis Series Cabinet Aspect ATSC ATSC/NTSC Digital MPEG Name Design 1Tuner Cable Decoder Gemstar 42HDX99 DW2C 16x9 Directors Leggero(ALL BLK) 42HDT79 DW2B 16x9 UltraVision Leggero(SP:BLK, DECO:SIL) 42HDS69 DW2A 16x9 UltraVision Leggero(ALL SIL) Memory Model Name Class NTSC...
  • Page 16 DW2U General Specification Environment Specifications Model Spec 42HDS69/42HDT79/42HDX99 Item Specification Model Name Item Operating Temp. +5°C~+35°C Destination U.S.A. / CANADA Stock Temp. -15°C~+60°C Exterior Cabinet Dimensions Operating Humidity 20%~80%RH (Main Body) (Speaker & 1 1 3 4 m m x 7 1 3 . 2 m m x 3 6 5 m m stand inclusive) Stock Humidity 20%~90%RH...
  • Page 17 DW2U Display Specification Continuation Picture Format for Each Input Source Input Auto Aspect Aspect Aspect, Virtual HD, Black Side Panel, Vertical Position, PIP Mode Signal Aspect Video ID 16:9 16:9 16:9 Standard 1 Standard 2 Zoom Standard Expanded Zoom 1 Zoom 2 Input 4 1080i/720p...
  • Page 18 DW2U [Expansion] <4x3 Format> <16x9 Format> 4:3 Expanded Mode 16:9 16:9 16x9 Standard1 Standard1 162% Horizontal Expansion Ratio 16:9 16x9 Standard2 113% 16:9 16:9 16x9 Zoom Zoom Horizontal Position 16x9 Format Format Standard 100% 100% 16x9 Expanded Expanded Expanded Zoom1 162% 113% 162%...
  • Page 19 DW2U Aspect Key Operation (3) HDMI/YPBPR: 1080i/720p (1) ANT Analog Channel Aspect Aspect Aspect 16:9 16:9 16:9 16:9 Standard1 Standard2 Zoom Standard Standard1 Aspect Aspect Aspect Aspect Aspect Aspect Aspect 16:9 Expanded Zoom Zoom2 Zoom1 Expanded (2) ANT Digital Channel (4) HDMI/YPBPR: 480p/480i, Video/S-Video (a) Aspect: 16x9 (4-1) Auto Aspect OFF...
  • Page 20 DW2U Vertical Position Operation (b) Video ID/HDMI Info: Letter Input Vertical Position Aspect 16:9 16:9 Standard1/2 Zoom Standard Expanded Zoom 1 Zoom 2 Standard Expanded Video NTSC 0 step 10 step 0 step 10 step 10 step 10 step Analog Gray out ( 30 lines) Gray out...
  • Page 21 DW2U PIP Mode Digital Component/Composite/S-IN/HDMI POP Mode: Mode 1080i 720p 480p 480p 480i 480i 1080i 720p 480p 480p 480i 480i Main 16x9 16x9 16x9 16x9 16x9 16x9 16x9 16x9 Digital 1080i 16x9 (Air or 720p 16x9 Cable) 480p 16x9 480p 480i 16x9 480i...
  • Page 22 DW2U (1) PIP Key Operation (2) Freeze Operation Normal Viewing Main Frozen Freeze Exit Freeze Main Moving Frozen Freeze Freeze STROBE SPLIT (3) SWAP Operation Main Audio Audio 16x9 Main Audio Audio Exit Main Audio Audio PIP OFF PIP OFF (Note) If PIP Key is pushed from a Normal screen, PIP of Last Mode will be displayed.
  • Page 23 DW2U (4) Monitor Out (4-1) Set the Monitor out: Monitor out (4-2) Set the Monitor out: TV out Main Audio Audio Main Audio Audio Main Audio Audio Main Audio Audio Main Audio Audio Main Audio Audio Main Monitor Out Monitor Out Audio Audio Monitor Out...
  • Page 24 DW2U (4-3) At the time of reservation videotape recording Main (4) PIP Position Operation Audio Audio Main Audio Audio Main Audio Audio Monitor Out (Note) At the time of reservation videotape recording, the picture and sound of ANT is outputted from Monitor out. When Macrovision signal is included in the ANT Digital channel, monitor out is no picture and no audio.

  • Page 25: Basic Setup & Operation

    How To Set Up Your New Hitachi Plasma Television To take measures to prevent the Plasma Display from tipping over and prevent possible injury it is important to mount the unit in a stable and flat surface. Securing to a table-top ANTENNA 1.
  • Page 26 HOW TO SET UP YOUR NEW HITACHI PLASMA TELEVISION VIEWING The best picture is seen by sitting directly in front of the TV and about 10 to 18 feet from the screen. During daylight hours, reflections from outside light BEST may appear on the screen.
  • Page 27 Hook-up Cables and Connectors Most video/audio connections between components can be made with shielded video and audio cables that have phono connectors. For best performance, video cables should use 75-Ohm coaxial shielded wire. Cables can be purchased from most stores that sell audio/video products. Below are illustrations and names of common connectors.
  • Page 28 In addition to controlling all of the functions on your HITACHI Plasma TV, the remote control is designed to operate different types of devices, such as, DVD Players, Cable Boxes (CBL), set-top-boxes, satellite receivers, PVRs/VCRs and audio devices. The remote control must be programmed to control the chosen device.
  • Page 29 QUICK REFERENCE REMOTE CONTROL In addition to controlling all of the functions on your HITACHI Plasma TV, the new remote control is designed to operate different types of devices, such as, DVD Players, CBL (Cable Boxes), set-top-boxes, satellite receivers, and VCRs. The remote control must be programmed to control the chosen device. Please see pages of the OWNERS GUIDE for a complete description of all features and programming of the Remote Control.
  • Page 30 Front/Rear/Side Panel Controls FRONT VIEW 42HDS69 42HDT79 & 42HDX99 Model Only Models Only REAR/SIDE VIEW Firmly bind the cables. Hook the band Thread the square to the claw. hole with the band. SIDE POWER button Press this button to turn the Plasma Television NOTE: The Rear View of the 55”...
  • Page 31 NOTES: Your HITACHI Plasma TV will appear to be turned OFF (lights orange) if there is no video input when INPUT : 1, 2, 3, 4 and 5. Check the Power Light to make sure the TV is turned off or in Stand-by mode (lights red) when not in use.
  • Page 32 REAR PANEL CONNECTIONS Antenna Input The remote control allows you to switch between two separate 75-Ohm RF antenna inputs, CABLE and AIR. CABLE input can be displayed as a main picture or sub-picture. AIR can only be displayed as a main picture (AIR cannot be displayed as a sub-picture).
  • Page 33 On-Screen Display.(Only HDT & HDX models) Upgrade Card This card slot is for future software upgrades. Hitachi will notify you if a software upgrade is required for your TV. In order to receive written notification, please complete and return your warranty card.
  • Page 34 Connecting External Video Sources The LEFT SIDE panel jacks are provided as a convenience to allow you to easily connect a camcorder , DVD, Video Game or VCR as shown in the following examples: INPUT 5 INPUT 5 L/MONO L/MONO AUDIO Y / VIDEO AUDIO...
  • Page 35 Connecting External Video Sources The RIGHT SIDE panel jacks are provided as a convenience to allow you to easily connect HDMI or DVI signals from a DVD, Set Top Box , Video Game as shown in the following examples (When connecting DVI signal it will need to connect the audio output into the Left Side Input jacks) : A) Connecting HDMI signal.
  • Page 36 CONNECTING EXTERNAL VIDEO SOURCES Cable TV coaxial cable 2-Way signal splitter Outside Antenna VCR #1 DIGITAL OUTPUT CAPABILITY OUTPUT S-VIDEO DIGITAL OUTPUT AUDIO OUT Optional HDMI DV or 1394 OUTPUT DVHS DV or 1394 OUTPUT CAPABILITY HDMI HDMI Optional OUTPUT HDMI OUTPUT S-VIDEO S-VIDEO...
  • Page 37 TIPS ON REAR PANEL CONNECTIONS • S-VIDEO, Y-P B P R , or HDMI connections are provided for high performance laserdisc players, VCRs etc. that have this feature. Use these connections in place of the standard video connection if your device has this feature.
  • Page 38 BASIC OPERATION IMPORTANT NOTES Items Notes Arching sound from A buzzing sound might be heard when the plasma display monitor is turned on in a very quiet plasma display monitor’s room. This is due to the plasma panel drive circuit when it is functioning. This arching sound panel.

  • Page 39: Adjustments

    DW2U ADJUSTMENTS TABLE OF CONTENTS TO GO TO A SECTION, CLICK ON ITS HEADING BELOW 1 Adjustment procedure start up....................39 1.1 How to get into adjustment mode ................39 1.2 Changing data and selecting adjustment code............39 2 Memory initialize ........................39 2.1 Memory initialize operation ..................39 2.2 Factory and service adjustments ................40 3 Video Adjustment ........................40 3.1 Sub-Contrast &...

  • Page 40: Adjustment Procedure Start Up

    2.1 MEMORY INITIALIZE OPERATION may be used as the adjustment keys. NOTE: The execution of this function returns the A. Use any Hitachi remote control when making an adjustment codes to the preset values, therefore, adjustment. adjustment data will be lost.

  • Page 41: Factory And Service Adjustments

    DW2U 3.12 525i Cb,Cr Clamp offset adjustment ·Process of Memory Initialize operation. Preparation ① A screen is be colored cyan when MEMORY INIT (1) Change signal format from 525(480)p to 525(480)i. (See Fig.2) start. A screen is be colored green when MEMORY INIT ②...

  • Page 42: Power Supply Vs, Va Voltage Adjustment

    DW2U 4. Vs, Va voltage adjustment Item Power Unit Vs, Va Adjustment Adj. point Refer to following Adjustment Preparations Adjustment Procedures Remarks (1) Turn on the set and perform (1) Turn Vs ADJ to adjust Vs voltage Permissive level of voltage in pre-heat run more than 1 min to be within 0.1V of the value...

  • Page 43: White Balance Adjustment

    DW2U WHITE BALANCE ADJUSTMENTS Remarks (1) Color temperature should be adjusted under the condition in which the screen is the brightest, thus General Notes for White Balance (1) If the incident illumination is more than 20 lux, the initial value for adjustment is set to its maximum. (2) Adjustment is made by reducing brightness only.

  • Page 44: Video Color Temperature Adjustment (Standard)

    DW2U DIGITAL MAIN CHECK 5.3 VIDEO COLOR TEMPERATURE ADJUSTMENT (STD) Preparation SYSTEM SOFTWARE VERSION CHECK (1) Same as “Video Color Temperature adjustment: (HIGH)”. For 55” video level changes to 0.700Vp-p. (1) Press Menu button on the R/C or control panel. Adjustment (2) Enter the SETUP options, and then look (1) Perform the following adjustment with the remote...

  • Page 45: White Balance Adjustment Osd Flowchart Diagram

    DW2U 5.5 WHITE BALANCE ADJUSTMENT OSD FLOW DIAGRAM 5.5.1 Adjustment OSD Flowchart (1) Adjust Mode OSD JIG R/C code:9C or Press [MENU]+[MENU]+[8]+[SELECT] of Control panel. MENU MENU SELECT JIG Code CH U/D, INPUT CYAN* ADJUST MODE FACT RESET GREEN : Finish Normally MEMORY INIT Press...
  • Page 46 DW2U 5.7.1 Adjustment OSD Flowchart (Cont.) CH U/D, INPUT ADJUST MODE FACT RESET G DRV HIGH MEMORY INIT R DRV HIGH B DRV HIGH WHITE BAL HIGH WHITE BAL MED WHITE BAL STD WHITE BAL B/W Select DRV Press EXIT key and Press →...

  • Page 47: Screen Check

    (1) Enter Adjustment Mode by the method described in SIGNAL ASPECT SPEC(A,B) sub-items 1-1 and 1-2 from page 30. (“Adjustment Hitachi circle pattern 0 +/- 0.5 16:9 Standard1 Procedure Start-up”). (2) From the first menu in Adjustment Mode, select FACT RESET adjustment code.

  • Page 48: Settings For Delivery

    DW2U ·Process of FACTORY RESET operation. ① A screen is colored magenta when FACTORY RESET start. A screen is colored green when FACTORY RESET ② finish normally. ③ A screen is colored RED when FACTORY RESET finish abnormally. (6) After FACTORY RESET, it should be unplug AC cord.Unplug and plug AC cord and then all settings and data are updated.
  • Page 49 DW2U 9. SETTING for Delivery (continued) Function Initial Data Condition 42HDS69 42HDT79 42HDX99 55HDS69 55HDT79 55HDX99 Audio Treble Bass Balance CENT Surround Bass Boost Audio Source Stereo Analog Broadcast Internal Speakers Auto Noise Cancel Analog Broadcast Perfect Volume Loudness Language 1 (English) Digital Output Dolby Digital...
  • Page 50 DW2U 9. SETTING for Delivery (continued) Function Initial Data Condition 42HDS69 42HDT79 42HDX99 55HDS69 55HDT79 55HDX99 Setup Menu Preference Set The Language English Set The Menu Background Shaded Set The Screen Saver Option 1 Main Picture Moving Image Power Wipe Screen Wipe Automatic Power Saving Set The Inputs...

  • Page 51: Osd Design Select

    DW2U 10 OSD Design Select Adjustment Preparation (1) Go to the Adjust Mode Menu. (2) Select “DEVICE” in the Adjust Mode Menu as follows. DEVICE menu (3) Press [ ] button to access the DEVICE menu. ADJUST MODE ADJUST MODE DEVICE ITEM DATA IR BLAST...

  • Page 52: Troubleshooting Flowcharts

    DW2U TROUBLESHOOTING FLOW CHARTS TROUBLE SHOOTING for DIGITAL MODULE (Device error check) Digital Main P.W.B has five LED (KNIGHT RIDER) on board. After Power ON these LED will be turned on in sequence as follows. It may take a few seconds for the sequence. LED sequence Sequence D205...
  • Page 53 DW2U TROUBLESHOOTING FLOWCHARTS LED patterns for involved devices LED5 LED4 LED3 LED2 LED1 Device Circuit No Remarks No Error － － ○ ○ ○ ○ ○ Video/Audio of Cable/Air Digital Tuner ○ ○ ○ ○ ● Video/Audio of Cable/Air Analog Tuner ○...

  • Page 54: Block Diagrams

    DW2U CIRCUIT BLOCK DIAGRAM [42/55HDS69] X Sustain Circuit Y Sustain Circuit Address Driver Logic Control Driver Controller unit Data Controller LVDS Receiver Signal Controller PDP Panel Module (42” only) (42” only) Vcego CPUgo Filter PWB Vsago (LVDS) PDPgo Power Main Supply Power2 Inlet...
  • Page 55 DW2U CIRCUIT BLOCK DIAGRAM [42/55HDT79] X Sustain Circuit Y Sustain Circuit Address Driver Logic Control Driver Controller unit Data Controller LVDS Receiver Signal Controller PDP Panel Module (42” only) (42” only) Vcego CPUgo Filter PWB Vsago (LVDS) PDPgo Power Main Supply Power2 Inlet...
  • Page 56 DW2U CIRCUIT BLOCK DIAGRAM [42/55HDX99] X Sustain Circuit Y Sustain Circuit Address Driver Logic Control Driver Controller unit Data Controller LVDS Receiver Signal Controller PDP Panel Module (42” only) (42” only) Vcego CPUgo Filter PWB Vsago (LVDS) PDPgo Power Main Supply Power2 Inlet...
  • Page 57 DW2U POWER SYSTEM BLOCK DIAGRAM AC120V PDP Panel Module Filter PWB (+80V) Power Supply Unit (+60V) (PFC) (+5.1V) STBY+5V +12V +10.5V +5.6V STBY+3.3V (+3.3V) +3.3V +1.3V +1.8V +3.3V +3.3V Reg. Reg. DC-DC DC-DC DC-DC Reg. Reg. Reg. Sync. Digital +1.3V +2.5V +2.5V Audio DAC...
  • Page 58 DW2U AUDIO CIRCUIT BLOCK DIAGRAM IF09 IF11 Woofer L WM8520 TPA3100 IF15 Digital NJU26107 Woofer R IF20 W/amp Power Amp. Volume Mute Seine SN74LV Balance C244AP Bass/Treble IF10 IF12 Speaker L Surround WM8520 TPA3100 Bass Boost Digital Speaker R W/amp Power Amp.

  • Page 59: Connection Diagrams

    DW2U CONNECTION DIAGRAM TABLE OF CONTENTS...

  • Page 60: Final Wiring Diagram

    DW2U FINAL WIRING DIAGRAM TABLE OF CONTENTS...

  • Page 61: Quick Disassembly Guide

    DW2U QUICK DISASSEMBLE GUIDE (Back Cover 1) ① Remove Screw M3M 6*18 P#MJ03963(2 Pcs.) Cable Clamp M6 P#ML02111(2 Pcs.) ② Remove Screw M3M 6*25 P#MJ03973(2 Pcs.) ③ Remove Screw M3D 4*10 P#MJ03973 ④ Remove Screw M3M 6*25 P#MJ03973(2 Pcs.) STAND METAL SUPPORT TABLE OF CONTENTS...
  • Page 62 DW2U QUICK DISASSEMBLE GUIDE (Back Cover 2) ⑤ Remove Screw M3D 4*10 P#MJ03973(22 Pcs.) BACK COVER...
  • Page 63 DW2U QUICK DISASSEMBLE GUIDE (Fans) ① Remove Screw M3E 4*10 P#MJ04039(4 Pcs.) ② Remove Screw M3E 3*8 P#MJ03963(4 Pcs.) ③ Remove Fans(R,L) P#GS00702(2 Pcs.) FAN SUPPORT METAL FAN ASSY (L) FAN ASSY (R) FAN SUPPORT METAL 2...
  • Page 64 DW2U QUICK DISASSEMBLE GUIDE (Power Unit) ④ Remove Screw M3E 3*8 P#MJ03963(2 Pcs.) Screw M3M 3*8 P#MJ03598(4 Pcs.) ⑤ Remove Power Unit P#HA01731 TO RELEASE POWER UNIT FROM THE PANEL IT IS NECESSARY TO PRESS 3 HOLDERS IN 3 POSITIONS.
  • Page 65 DW2U QUICK DISASSEMBLE GUIDE (Chassis Block) ① Remove Screw M3E 4*10 P#MJ04039(2 Pcs.) CHASSIS BLOCK...
  • Page 66 DW2U QUICK DISASSEMBLE GUIDE (Terminal Metal) ② Remove Screw M3E 3*8 P#MJ03963(4 Pcs.) ③ Remove Screw D-Sub P#MJ03351(2 Pcs.) ④ Remove Tuner Nut Washer P#MK01432 ⑤ Remove Screw T2B 3*10 P#MJ03733(4 Pcs.) ⑥ Remove Screw M3E 3*8 P#MJ03963(4 Pcs.) ⑦ Remove Screw M3M 3*6 P#MJ03594(4 Pcs.)
  • Page 67 DW2U QUICK DISASSEMBLE GUIDE (POD PWB) ① Remove Screw M3E 3*8 P#MJ03963 ② Remove POD PWB Assy 42HDS69 P#JP50341 42HDT79 P#JP05342 42HDX99 P#JP05432...
  • Page 68 DW2U QUICK DISASSEMBLE GUIDE (Main / Sub Digital PWB) ③ Remove Main Digital PWB Assy ④ Remove Sub Digital PWB Assy See page 115 for part numbers IS NECESSARY TO RELEASE MAIN PWB AND SUB PWB FROM BOARD HOLDERS(3 POSITIONS) CH 4...

  • Page 69: Final Assembly Guide

    DW2U FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 70 DW2U FINAL ASSEMBLY GUIDE...
  • Page 71 DW2U FINAL ASSEMBLY GUIDE...
  • Page 72 DW2U FINAL ASSEMBLY GUIDE...
  • Page 73 DW2U FINAL ASSEMBLY GUIDE...
  • Page 74 DW2U FINAL ASSEMBLY GUIDE...
  • Page 75 DW2U FINAL ASSEMBLY GUIDE...
  • Page 76 DW2U FINAL ASSEMBLY GUIDE...
  • Page 77 DW2U FINAL ASSEMBLY GUIDE...
  • Page 78 DW2U FINAL ASSEMBLY GUIDE...

  • Page 79: Waveforms

    DW2U WAVEFORMS Numbers inside circle correspond to locations shown in the circuit diagram. Waveforms taken using a Color Bar signal with H sync 31 khz and V. sync 60 hz and a X10 probe. ∆ Signal amplitude and DC level shown at and @ respectively.
  • Page 80 DW2U WAVEFORMS Numbers inside circle correspond to locations shown in the circuit diagram. Waveforms taken using a Color Bar signal with H sync 31 khz and V. sync 60 hz and a X10 probe. ∆ Signal amplitude and DC level shown at and @ respectively.

  • Page 81: Dc Voltages

    DW2U DC VOLTAGES (42" Models only) Symbol Pin No. Voltage Symbol Pin No. Voltage Symbol Pin No. Voltage CN63 CNPPS PCM1 10.8 16.3 Symbol Pin No. Voltage CN64 63.4 10.8 Symbol Pin No. Voltage 10.8 PCM2 10.8 Symbol Pin No. Voltage 83.5 83.5...
  • Page 82 DW2U DC VOLTAGES (42" Models only) Symbol Pin No. Voltage Symbol Pin No. Voltage Symbol Pin No. Voltage IT05 IW03 IW04 Symbol Pin No. Voltage Symbol Pin No. Voltage IT11 UT01 Symbol Pin No. Voltage IWP2 Symbol Pin No. Voltage IT12 Symbol Pin No.

  • Page 83: Circuit Schematic Diagrams

    DW2U BASIC CIRCUIT DIAGRAM Subdigital 1 of 6 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. •...
  • Page 84 DW2U BASIC CIRCUIT DIAGRAM Subdigital 2 of 6 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. •...
  • Page 85 DW2U BASIC CIRCUIT DIAGRAM Subdigital 3 of 6 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. TERMINAL •...
  • Page 86 DW2U BASIC CIRCUIT DIAGRAM Subdigital 4 of 6 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. 200 pin I/F •...
  • Page 87 DW2U BASIC CIRCUIT DIAGRAM Subdigital 5 of 6 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. POWER SWIVEL •...
  • Page 88 DW2U BASIC CIRCUIT DIAGRAM Subdigital 6 of 6 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. UEI/IR BLASTER •...
  • Page 89 DW2U BASIC CIRCUIT DIAGRAM POD 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. •...
  • Page 90 DW2U BASIC CIRCUIT DIAGRAM Front HDMI 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. FRONT HDMI •...
  • Page 91 DW2U BASIC CIRCUIT DIAGRAM LED 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. •...
  • Page 92 DW2U BASIC CIRCUIT DIAGRAM OPT 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. •...
  • Page 93 DW2U BASIC CIRCUIT DIAGRAM FILTER 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. FILTER •...
  • Page 94 DW2U BASIC CIRCUIT DIAGRAM SIDE TERMINAL 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. SIDE TERMINAL •...
  • Page 95 DW2U BASIC CIRCUIT DIAGRAM CONTROL 1 of 1 PRODUCT SAFETY NOTE: Components marked with a ! and shaded have special characteristics important to safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTE of this Service Manual. Don't degrade the safety of the receiver through improper servicing. CONTROL •...

  • Page 96: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS DW2-U DW2-U SUBDIGITAL PWB (Component side) SEMICONDUCTOR LOCATION ( Component side) QT03 QT04 I004 QT05 I005 QT06 IL01 QT07 IM05 QY01 IP03 QY02 IP05 QY03 IPT1 IT02 DIODE IT03 IT04 D001 IT05 D006 IT07 DL01 IT09 DL02 IT10 DL03 IT11...
  • Page 97 PRINTED CIRCUIT BOARDS DW2-U DW2-U SUBDIGITAL PWB (Solder side) SEMICONDUCTOR LOCATION (Solde r side) I001 IM01 IM02 IM03 IM04 IM06 IM07 IM08 IT06 IT08 TRANSISTOR Q013 Q015 QM01 QM03 QM04 QP05 QPS1 QT01 QT02 DIODE DP09 DPS1 DPS2 DT02 DT03 DT04 CRYSTAL &...
  • Page 98 PRINTED CIRCUIT BOARDS DW2-U DW2-U POD PWB (Component side) SEMICONDUCTOR LIST ( Component side) IW02 IW03 IW04 IWP1 IWP2 DIODE DW01 DW02 CRYSTAL & FILTER XWP1...
  • Page 99 PRINTED CIRCUIT BOARDS DW2-U DW2-U POD PWB (Solder side) SEMICONDUCTOR LIST (Solder side) IW01 IWE1 IWE2 TRANSISTOR QW01 QWE1...
  • Page 100 PRINTED CIRCUIT BOARDS DW2-U DW2-U FRONT HDMI PWB SEMICONDUCTOR LIST (Component side) (Solder side) Component side IH02 Solder side IH01 IH03 IH04 IH05 DIODE DH01 DH02 TRANSISTOR QH01 QH02 QH03 QH04...
  • Page 101 PRINTED CIRCUIT BOARDS DW2-U DW2-U LED PWB SEMICONDUCTOR LIST (Component side) Component side IN01 IN02 (Solder side) Solder side DIODE DN01 DN02 HN01 HN02...
  • Page 102 PRINTED CIRCUIT BOARDS DW2-U DW2-U OPT PWB (Component side) (Solder side)
  • Page 103 PRINTED CIRCUIT BOARDS DW2-U DW2-U FILTER PWB (Component side) (Solder side) Component side FILTER X9A1 X9A2...
  • Page 104 PRINTED CIRCUIT BOARDS DW2-U DW2-U SIDE TERMINAL PWB (Component side) (Solder side) Component side TRANSISTOR QNJ1 QNJ2...
  • Page 105 PRINTED CIRCUIT BOARDS DW2-U DW2-U CONTROL PWB (Component side) (Solder side)

  • Page 106: Parts List

    DW2U REPLACEMENT PARTS LIST PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. ABBREVIATIONS Capacitors: Resistors:...
  • Page 107 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 108 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 109 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 110 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 111 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 112 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 113 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...
  • Page 114 DW2U PRODUCT SERVICE NOTE: Components marked with a have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don’t degrade the safety of the receiver through improper servicing. SYMBOL PART # DESCRIPTION...

  • Page 115: Quick Reference Parts List

    DW2U QUICK REFERENCE PARTS LIST IC’S & UNITS No. Symbol Description Function PWB ASSY Remarks JP50761 PSA DW2-A MAIN-DIGITAL (42HDS69) MAIN DIGITAL ASS'Y MAIN DIGITAL JP50762 PSA DW2-B MAIN-DIGITAL (42HDX99) MAIN DIGITAL ASS'Y MAIN DIGITAL JP50763 PSA DW2-C MAIN-DIGITAL (42HDT79) MAIN DIGITAL ASS'Y MAIN DIGITAL DN01...
  • Page 116 DW2U Part Numbers for Boards and Assemblies PANEL BOARDS 42" Model Power Supply X-SUS PWB X-BUS PWB Y-SUS PWB Logic PWB A-BUS-L PWB A-BUS-R PWB 42HDS69 HA01731 FPF33R-XSS0041 FPF33R-XBU0035 FPF33R-YSS0042 FPF33R-LGC0061 FPF33R-ABL0038 FPF33R-ABR0039 42HDT79 42HDX99 PANEL BOARDS 55" Model Power Supply X-SUS PWB X-BUS PWB Y-SUS PWB...

This manual is also suitable for:

42hdx99/dw2-u42hds69/dw2-u42hds6942hdt7942hdx9955hds69 ... Show all

Table of Contents