Hitachi 55HDT52/DW1-U Service Manual
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Hitachi 55HDT52/DW1-U Service Manual

Hitachi 55HDT52/DW1-U Service Manual

Plasma display panel
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Service Manual

Change
Date of
Number
Change
1
2006.01.13
2
2006.04.05
3
2006.04.14
4
2006.04.20
5
2006.10.20

Revision History

Page numbers
changed
Corrected part number for power supply
138
88
Added part number for speaker grill assembly
137
Added part numbers for panel boards
Replaced connection diagram, replaced voltage table
78, 97
39
Removed text regarding Magic Focus
PA
No. 0212
55HDX62/DW1-U
55HDT52/DW1-U
55HDS52/DW1-U
Description of change
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Summary of Contents for Hitachi 55HDT52/DW1-U

  • Page 1: Service Manual

    No. 0212 55HDX62/DW1-U 55HDT52/DW1-U 55HDS52/DW1-U Service Manual Revision History Change Date of Page numbers Description of change Number Change changed Corrected part number for power supply 2006.01.13 Added part number for speaker grill assembly 2006.04.05 2006.04.14 Added part numbers for panel boards Replaced connection diagram, replaced voltage table 2006.04.20...

  • Page 2: Table Of Contents

    No. 0212 55HDX62/DW1-U 55HDT52/DW1-U 55HDS52/DW1-U SERVICE MANUAL P D D D W1-U N T S C R/C: CLU-3851WL A C C hassis TO GO TO A CHAPTER, CLICK ON ITS HEADING BELOW CONTENTS SAFETY PRECAUTIONS ..........2 PRODUCT SAFETY NOTICE .

  • Page 3: Safety Precautions

    DW1U SAFETY PRECAUTIONS NOTICE: Comply with all cautions and safety-related notes Leakage Current Hot Check Plug the AC line cord directly into a 120V AC outlet. (Do not use an located on or inside the cover case and on the chassis or plasma module.

  • Page 4: Started After The Panel Module And The Ac/Dc Power Supply

    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: Which Instruments Covered By This Service Data Might Be

    DW1U 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 IC Removal/Replacement 5. Inspect (on the circuit board copper side) the solder joints 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 DW1U 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 DW1U 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 Home Electronics (America), Inc. may void the user’s warranty. 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

    DW1U 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

    DW1U Specification Features A- Plasma Model 55HDS52/55HDT52/55HDX62 Dimension Size 1510mm x 931.4mm x 443mm Weight 71k 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/15W Front End(Sub/ATSC) Front End...
  • Page 14 DW1U Specification Features A- Plasma Model 55HDS52/55HDT52/55HDX62 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: Green Power Save: Orange Stand by: Red Burning Protection With (Raster Shift:3 option.AII White Pattern) OSD Language (VIDEO) ENGLISH.FRANCAIS.ESPANOL...
  • Page 15 DW1U Environment Specification Item Specification Operating Temp. +5°C~+35°C Stock Temp. -15°C~+60°C Operating Humidity 20%~80%RH Stock Humidity 20%~90%RH Operating Atmosphere 800~1114h Pa Pressure (1888m~-757m) Stock Atmosphere Pressure 300~1114h P a (4727m~-757m) Warranty Gravity Vertical 0.85 G Warranty Drop High 30cm Tilt Angle 12°...

  • Page 16: General Specification

    DW1U 3. General Specification 3.1 Model Spec 55HDS52/55HDT52/55HDX62 Model Name Item Destination U.S.A. / CANADA Exterior Cabinet Dimensions 1 5 1 0 X 8 4 0 X 1 1 8 m m (Main Body) (Speaker & 1510x931x443 mm stand inclusive) Frame Color Screen Dark Charcoal Metallic Inclusive ( With Power Swivel)
  • Page 17 How To Set Up Your New Hitachi Plasma Television To take measures to prevent the Plasma Television 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 18 HOW TO SET UP YOUR NEW HITACHI PLASMA TELEVISION VIEWING The major benefit of the HITACHI Plasma Television is its large viewing screen. To see this large screen at its best, test various locations in the room to find the optimum spot for viewing.
  • Page 19 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 20 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 21: Front View

    Front/Rear/Side Panel Controls FRONT VIEW REAR/SIDE VIEW POWER * Only 55HDT52 and 55HDX62 INPUT/EXIT MENU/SELECT Firmly bind the cables. Thread the square Hook the band to the claw. hole with the band. SIDE POWER button Press this button to turn the Plasma Television ON/OFF.
  • Page 22 (DV) camcorder. NOTES: Your HITACHI Plasma TV will appear to be turned OFF (lights orange) if there is no video input when VIDEO: 1, 2, 3, 4 and 5. Check the Power Light to make sure the Display Monitor is turned off or in Stand-by mode (lights red) when not in use.

  • Page 23: Rear Panel Connections

    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 24 Upgrade Card This card slot is for future software upgrades. CableCARD is installed 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 25 Connecting External Video Sources The front panel jacks are provided as a convenience to allow you to easily connect a camcorder or VCR as shown in the following examples: Left Side Panel Left Side Panel INPUT 5 INPUT 5 INPUT 5 INPUT 5 PHOTO PHOTO...
  • Page 26 CONNECTING EXTERNAL VIDEO SOURCES Outside antenna or cable TV coaxial cable 2-Way signal splitter VCR #1 DIGITAL OUTPUT CAPABILITY OUTPUT S-VIDEO DIGITAL OUTPUT AUDIO OUT HDMI OUTPUT S-VIDEO S-VIDEO OUTPUT INPUT OUTPUT VCR #2 DVD Player Laserdisc player, VCR, HDTV Set-Top Box camcorder, etc.
  • Page 27 TIPS ON REAR PANEL CONNECTIONS • S-VIDEO, YPbPR, 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 28: Basic Operation

    DW1U 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 29 DW1U ADJUSTMENTS TABLE OF CONTENTS TO GO TO A SECTION, CLICK ON ITS HEADING BELOW 1 Adjustment procedure start up....................29 1.1 How to get into adjustment mode ................29 1.2 Changing data and selecting adjustment code............29 2 Memory initialize ........................29 2.1 Memory initialize operation ..................29 2.2 Factory and service adjustments ................30 3 Video Adjustment ........................30 3.1 Sub-Contrast Adjustment .....................30...
  • Page 30 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 31 DW1U 3.2 SUB-CONTRAST ADJUSTMENT ·Process of Memory Initialize operation. Preparation A screen is be colored blue when MEMORY INIT Receive Sub-contrast adjustment signal (Fig. 1). start. A screen is be colored green when MEMORY INIT Adjustment finish normally. (1) Select ‘SUB CONTRAST’ of Service Adj. Menu. A screen is be colored black when MEMORY INIT Press for over 2 seconds and have it perform...
  • Page 32 DW1U 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 33 DW1U 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 the initial value for adjustment is set to its maximum. (1) If the incident illumination is more than 20 lux, (2) Adjustment is made by reducing brightness only.
  • Page 34 DW1U 5.3 VIDEO COLOR TEMPERATURE ADJUSTMENT DIGITAL MAIN CHECK (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 35 DW1U 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 SUB CONTRAST WHITE BAL HIGH WHITE BAL MED Press...
  • Page 36 DW1U 5.7.1 Adjustment OSD Flowchart (Cont.) CH U/D, INPUT SUB CONTRAST WHITE BAL HIGH WHITE BAL MED WHITE BAL STD WHITE BALANCE WHITE BAL B/W ADJUST MODE H POSITION V POSITION FACT RESET VIDEO SETTINGS (1) CONTRAST ; MAX (2) COLOR,TINT,SHARP,BRIGHT ; CENTER CH U/D, INPUT (3) COLOR TEMP ;...
  • Page 37 DW1U 7. SCREEN CHECK 8. HDMI adjustment Preparation DVI compatibility check (1) Set AC120±1V. Preparation (2) Turn on the power and leave it more than 5 min. 1. Prepare HDTV signal generator. (Zenith HD-SAT520) (3) Receive circle pattern at 4:3 Expanded mode. 2.
  • Page 38 DW1U ·Process of FACTORY RESET operation. A screen is colored magenta when FACTORY RESET start. A screen is colored green when FACTORY RESET finish normally. A screen is colored black 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 39 DW1U 9. SETTING for Delivery (continued) Function Initial Data Condition DW1-U TV Guide On Screen TV Guide On Screen Analog Broadcast /DTV Channel Manager Signal Meter Auto Channel Scan Cable Cable Source CATV1 Channel List Not set Registered CH Scan Lock Locks Change Access Code...
  • Page 40 DW1U 9. SETTING for Delivery (continued) Function Initial Data Condition DW1-U Setup Magic Focus Tune Up Auto/9Point Manual Auto /117Point Manual Not set Schedule (At turn off, after 90 days.) Menu Preference Menu Language English Menu Background Shaded Set The Inputs Input1 Rename None Input2 Rename...
  • Page 41 DW1U 10. I C Adjustment Parameter List 1st page (1/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD DW1-U Range(HEX) SERVICE SERVICE TA1360 (88H) SUB BRIGHT [ISF Mode] 00 FF Sub Brightness WHITE BAL White Balance Mode (TA1360 88H) G DRIVE(HIGH) [ISF Mode] 00 7F Color Temperature: High...
  • Page 42 DW1U 10. I C Adjustment Parameter List (continued) 1st page (2/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U WHITE BAL White Balance Mode (TA1360 88H) G DRIVE (B/W) [ISF Mode] 00 7F Color Temperature: Black/White Green/Red Drive Gain Adjustment R DRIVE (B/W) R CUTOFF (B/W) [ISF Mode]...
  • Page 43 DW1U 10. I C Adjustment Parameter List (continued) 2nd page (1/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U SEINE TV_GUiDE Don’t care TV_GUiDE Don’t care TV_GUiDE Don’t care iR_BLASTER iR_BLASTER TC90103 H_TiMiNG VBIDLY: Slicer H Timing Delay 00 0F ID1/WSS/CCD/G-Gide V_PHASE...
  • Page 44 DW1U 10. I C Adjustment Parameter List (continued) 2nd page (2/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 G_READ_oUT GGSON: Guide Slice Read Output 00 01 G_DETECT GGSJDG: Guide Detection Sensitivity 00 01 G_SLiCE_LEVEL GGSLV: Guide Slice Level 00 03 CLoCK_RUN_iN GGPKDET: Guide Clock Run In Detect...
  • Page 45 DW1U 10. I C Adjustment Parameter List (continued) Seine (1/4) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U SEINE Capture Picture Sync Delay 00 01 00h: Delay Adjustment, 1: Through Active area top field V sync phase 00 01 00h: odd field, 01h: even field Vertical Delay 000 7FF...
  • Page 46 DW1U 10. I C Adjustment Parameter List (continued) Seine (2/4) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U SEINE Vertical Sync Input Delay 00 03 Horizontal Filter Switch for Y 00 01 00h: through, 01h: 0.25fs Horizontal Filter Switch for U 00 03 00h: through, 01h: 0.25fs, 02h: 0.055fs, 03h: 0.037fs...
  • Page 47 DW1U 10. I C Adjustment Parameter List (continued) Seine (3/4) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U SEINE Color Signal Round Coefficient for Noise Reduction 00 0D NTSC/480i Input only Color Signal Frame Difference Limit for Noise 00 1F Reduction NTSC/480i Input only...
  • Page 48 DW1U 10. I C Adjustment Parameter List (continued) Seine (4/4) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U SEINE Odd/Even Field Horizontal Active ANT/NTSC 000 6B4 Picture Data Start Point 480i_YPbPr 000 35A 480i_HDMI 000 6B4 480p_YPbPr 000 35A 480p_HDMI 000 35A 1080i_YPbPr...
  • Page 49 DW1U 10. I C Adjustment Parameter List (continued) TA1360 (1/5) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TA1360 [ISF Mode] 00 03 RGB Output Mode Switch 00: Normal, 01: R only, 02: G only, 03: B only Black Enhancement [ISF Mode] 00 7F...
  • Page 50 DW1U 10. I C Adjustment Parameter List (continued) TA1360 (2/5) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TA1360 [ISF Mode] ANT/NTSC 00 0F R-Y/B-Y Phase 00h: 90 degree, 480i/480p 00 0F 0Fh: 109 degree 1080i/720p 00 0F [ISF Mode] ANT/NTSC Color Temp.
  • Page 51 DW1U 10. I C Adjustment Parameter List (continued) TA1360 (3/5) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TA1360 [ISF Mode] ANT/NTSC High 00 0F G-Y/B-Y Gain 00h: 0.3 0Fh: 0.45 Medium 00 0F Standard 00 0F 00 0F 480i/480p High 00 0F...
  • Page 52 DW1U 10. I C Adjustment Parameter List (continued) TA1360 (4/5) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TA1360 Sand castle Pulse Switch 00 01 00h: Internal, 01h: External Input Aperture Control Peak f0 ANT/NTSC 00 03 00h: 15 MHz, 01h: 8.8 MHz , 02h: 7.5 MHz, 03h: 5 MHz 480i/480p 00 03...
  • Page 53 DW1U 10. I C Adjustment Parameter List (continued) TA1360 (5/5) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TA1360 Black Level Auto Correction Switch 00 01 D2 00h: OFF, 01h: ON Black Detection Level Switch 00 01 D1 00h: 3 IRE, 01h: 0 IRE Black Stretch Area Correction Switch 00 01 D0 00h: ON, 01h: OFF...
  • Page 54 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (1/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i 3D Motion Detection Select 00 03 00h Compulsion Standard, 01h Compulsion Still Picture, 02h MOVE, 03h MANU YES Mode 00 03 00h Mode1, 01h 3Line+3DNR, 02h BPF+3DNR, 03h Mode2...
  • Page 55 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (2/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i Sharpness/Noise Cancel Coring ANT/NTSC 00 03 00h 0.8 IRE, 01h 1.6 IRE, 02h 3.2 IER, 03h 6.4 IRE Y/C/480i 00 03 Noise Cancel Gain...
  • Page 56 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (3/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i Demodulation Angle 00 3F 00h 0° 3Fh +45° Color Killer Level 00 07 00h -40dB 07h -30dB ACC Level (ACC = Auto Color Level) 00 0F 00h Min 0Fh Max [08h: Center]...
  • Page 57 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (4/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i Vertical Y ON 00 01 00h OFF, 01h ON C NY Limiter 00 01 00h 16lsb, 01h 24lsb C NC Gain 00 01 C-NC ON...
  • Page 58 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (5/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i Vertical Standard Setting 00 07 04h +4H 00h Center External VD Phase Setting 00 07 00h Center, 01h +1.99us, 02h +3.97us, 5.96us, 04h -7.94us, 05h -5.96us, 06h -3.97us, 07h -1.99us VD Output Control...
  • Page 59 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (6/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i Y Motion Picture Distinction Standard 00 03 00h 8%, 01h 16%, 02h 24%, 03h 32% 1 Field Y Detection Slope, Color Still Picture 00 03 Smooth 00h 1/2...
  • Page 60 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (7/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i 1 Filed Detection Slope, Y Still Picture Smooth 00 03 00h 1/2 [02] 1 Field Y Detection Offset, Y Still Picture Smooth 00 0F 00h Still Picture 0Fh Motion Picture...
  • Page 61 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (8/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i 2 Field Detection Slope, Y Motion Picture Edge 00 03 00h 1/2 [02h: Default] 2 Field Detection Offset, Y Motion Picture Edge 00 0F 00h Still Picture 0Fh Motion Picture...
  • Page 62 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (9/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i 2 Field Assistance Select 00 01 00h Y, 01h C 2 Field Assistance Color Still Picture Distinction 00 07 Level 00h: Small 07h Large [04h: Default]...
  • Page 63 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (10/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i AGC Peak Level Detection ON/OFF 00 01 (AGC = Auto Gain Control) 00h OFF, 01h ON AGC OFF/ON Level Setting 00 03 (AGC = Auto Gain Control) 00h OFF, 01h 70%, 02h 75%, 03h 80%...
  • Page 64 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (11/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i CK Out Clock Select 00 03 00h 13.5MHz, 01h 27MHz 601 13.5MHz , 02h 54MHz 656 27MHz , 03h AUTO Horizontal Blanking Period 00 01 00h OFF, 01h ON...
  • Page 65 DW1U 10. I C Adjustment Parameter List (continued) TC90103 (12/12) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U TC90103 ANT/NTSC/480i Memory Write Horizontal Phase Adjustment 00 0F 08h -2.37us 00h 0us 07h +2.07us Memory Write Vertical Start Phase Adjustment 00 0F 08h -8H 00h 0us...
  • Page 66 DW1U 10. I C Adjustment Parameter List (continued) AD9880 (1/1) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U AD9880 A/D Converter, 480p/1080i/720p Pr channel gain Adjust 00 7F Y Channel Gain Adjust 00 7FF Pb Channel Gain Adjust 00 7F Pr offset MSB 00 FF...
  • Page 67 DW1U 10. I C Adjustment Parameter List (continued) CXA2211 (1/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U CXA2211 Sync Processor Horizontal Number High Bit 00 3FF Vertical Number High Bit 00 7FF AFC loop gain control 480i 00 03 00h = H free-running mode 01h = gain low...
  • Page 68 DW1U 10. I C Adjustment Parameter List (continued) CXA2211 (2/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U CXA2211 Sync Processor This is switch a switch that selects the 480i 00 01 route of LPF in the sync sep circuit. This is valid when AUTO = 1 480p 00 01...
  • Page 69 DW1U 10. I C Adjustment Parameter List (continued) HDMI (1/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U HDMI HDMI_1/2 VSYNC/Clock detect/Sync detect 1 00 07 HDCP Status 00 FF Pixel clock 00 FF N hardware value 1 00 FF Low 7 bit N hardware value 1...
  • Page 70 DW1U 10. I C Adjustment Parameter List (continued) HDMI (2/2) Adjustment Adjustment Item Initial Data(HEX) Adjustment Mode OSD Range(HEX) DW1-U HDMI HDMI_1/2 SPD info frame type code 00 FF SPD info frame version code 00 FF SPD info frame data 00 FF AUDIO Info Frame Type Code 1 00 FF...
  • Page 71 DW1U 11. TROUBLESHOOTING FLOWCHARTS 11.1.1 TROUBLE SHOOTING for DIGITAL MODULE (Device error check) Digital Main P.W.B has five LED (KNIGHT RIDER) on board. After Power ON by POWER_1(6pin of PPT3), these LED will be turned on in sequence as follows. It may take a few seconds for the sequence. LED sequence Sequence D302...
  • Page 72 DW1U 11. TROUBLESHOOTING FLOWCHARTS LED patterns for involved devices Device Circuit No Video/Audio of Digital Tuner Cable/Air Video/Audio of Analog Tuner Cable/Air MPEG Video/Audio of Cable/Air Graphics All OSD Flash Memory Loading Program IEEE1394 IEEE1394 (Vivid Logic) Video Decoder CCD etc. (TC9010) Audio DSP Audio cont.
  • Page 73 DW1U 11. TROUBLESHOOTING FLOWCHARTS Device Circuit No Role Drive u-COM LCD panel Video SW Video Audio SW Audio Temp. Sensor Temperature sensor...
  • Page 74 DW1U 11.2.1 Trouble shooting for HDMI (1) No HDMI picture Start Digital Module, SIgnal PWB or Ensure power at pin 1 of IK03. Signal Power PWB defect Ensure power at pin 4 Digital Module (HDMI) defect of IK03, IK06, IK07 and IK08. Ensure Y, H, V and Clock I101 or I102 defect signal at pin 1 of RK55.
  • Page 75 DW1U 11. TROUBLESHOOTING FLOWCHARTS (2) No HDMI analog and/or digital audio Start Digital Module, SIgnal PWB or Ensure power at pin 1 of IK03. Signal Power PWB defect Ensure power at pin 4 Digital Module (HDMI) defect of IK03, IK06, IK07 and IK08. Ensure audio signal at SIgnal PWB defect pin 93 and 95 of PSM.
  • Page 76 DW1U CIRCUIT BLOCK DIAGRAM X Sustain Circuit Y Sustain Circuit X PWB Y PWB Address Driver Logic Control Driver Controller unit Data Controller LVDS Receiver Signal Controller PDP Panel Module Vcego CPUgo Filter (LVDS) Vsago PDPgo Side Power Supply Inlet Terminal Main-Digital PWB Power2...
  • Page 77 DW1U POWER SYSTEM BLOCK DIAGRAM AC120V PDP Panel Module AC INLET (+80V) Power Supply Unit (+60V) (PFC) (+5.1V) Filter PWB STBY+5V +24V +10.5V +5.6V STBY+3.3V (+3.3V) AC SW Vari. Vari. +3.3V +1.1V Reg. Reg. DC-DC Reg. DC-DC DC-DC Reg. DC-DC +1.8V Buffer Digital...
  • Page 78 DW1U AUDIO CIRCUIT BLOCK DIAGRAM +24V +3.3V IA01 TAS3103 I401 I402 Speaker L Volume Mute TAS5508 TAS5122 Woofer L Balance (Butler) (FC6) Digital Bass/Treble Speaker R Mute Power Amp. SRS BBE Woofer R Loudness AGC TruBass SCL/SDA I403 MUTE SubWoofer BA4558 MUTE Amp.
  • Page 79 DW1U CONNECTION DIAGRAM (55" Models Only) CH 4 TABLE OF CONTENTS...
  • Page 80 DW1U FINAL WIRING DIAGRAM TABLE OF CONTENTS...
  • Page 81 DW1U QUICK DISASSEMBLE GUIDE(Back Cover 1) Remove Screw M3M 6*12 P#MJ03889 (4 Pcs.) Remove Screw M3M 6*12 P#MJ04042 (2 Pcs.) TABLE OF CONTENTS...
  • Page 82 DW1U QUICK DISASSEMBLE GUIDE(Back Cover 2) Remove Screw M3D 4*10 P#MJ03895 (34 Pcs.) 55" BACK COVER P#QA03303 TABLE OF CONTENTS...
  • Page 83 DW1U QUICK DISASSEMBLE GUIDE(Power Unit) Unplug Connectors Remove Screws M3E 3*8 P#MJ03963 (6 Pcs.) Push Plastic Holder Wings and Remove Power Unit POWER UNIT P#HA01572 TABLE OF CONTENTS...
  • Page 84 DW1U QUICK DISASSEMBLE GUIDE(AV Digital Block) Loose these Screws Remove Screws M3E 3*8 P#MJ03963 (5 Pcs.) Lift and Remove Fan Mtl Assy(Fan P#GS01092, Tuner Case P#NA78241) Unplug Connectors Lift and Remove AV Digital Block TABLE OF CONTENTS...
  • Page 85 DW1U QUICK DISASSEMBLE GUIDE(AV Digital Boards 1) Remove Screws M3E 3*8 P#MJ03963 (2 Pcs.) TERMINAL PLATE TABLE OF CONTENTS...
  • Page 86 DW1U QUICK DISASSEMBLE GUIDE(AV Digital Boards 2) Remove Screws M3E 3*8 P#MJ03963 (4 Pcs.) Remove Hex Nut P#MK01511 (2 Pcs.) Washer P#MK01431 (2 Pcs.) TERMINAL METAL ANTENNA SWITCH P#HP01241 TABLE OF CONTENTS...
  • Page 87 DW1U QUICK DISASSEMBLE GUIDE(AV Digital Boards 3) Remove Screws M3E 3*8 P#MJ08781 (4 Pcs.) Remove Screws M3S 3*12 P#MJ04025 (2 Pcs.) Remove Screw M3E 3*8 P#MJ03963 (1 Pc.) Remove Screw Hex M3 P#MJ08731 (1 Pc.) Remove Screws M3E 3*8 P#MJ03963 (4 Pcs.) MAIN HEAT SINK DIGITAL MAIN P#JP08533(55HDX62/55HDT52)
  • Page 88 FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 89 FINAL ASSEMBLY GUIDE 55HDS WORK C 55HDT WORK B 55HDX WORK A Same p# for left and right grills CH 2 TABLE OF CONTENTS...
  • Page 90 FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 91 FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 92 FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 93 FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 94 FINAL ASSEMBLY GUIDE TABLE OF CONTENTS...
  • Page 95 DW1U WAVEFORMS AT EACH SECTION Numbers inside circle correspond to locations shown in the circuit diagram. ∆ Signal amplitude and DC level shown at and @ respectively. IT08 Pin 42 IT08 Pin 44 IT08 Pin 45 IT08 Pin 47 IT08 Pin 48 IT08 Pin 50 IT08 Pin 58 IT08 Pin 52...
  • Page 96 DW1U WAVEFORMS AT EACH SECTION 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 97 DW1U WAVEFORMS AT EACH SECTION 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 98 DW1U DW1U DC VOLTAGE TABLES (55" Models Only) Symbol Pin No. Voltage Symbol Pin No. Voltage Symbol Pin No. Voltage UTJ1 UT01 CN63 5.4 V 3.3 V 14 V 14.6 V 2.4 V 8.3 V 3.3 V 3.3 V 3.3 V 2.5 V 3.3 V 0.35 V...
  • Page 99 DW1U BASIC CIRCUIT DIAGRAM Subdigital 1 of 10 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. TUNER All DC voltage to be measured with a tester (100 k /V).
  • Page 100 DW1U BASIC CIRCUIT DIAGRAM Subdigital 2 of 10 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. POD-I/F All DC voltage to be measured with a tester (100 k /V).
  • Page 101 DW1U BASIC CIRCUIT DIAGRAM Subdigital 3 of 10 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 I/F &...
  • Page 102 DW1U BASIC CIRCUIT DIAGRAM Subdigital 4 of 10 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. 240 pin I/F All DC voltage to be measured with a tester (100 k /V).
  • Page 103 DW1U DW1U DW1U BASIC CIRCUIT DIAGRAM Subdigital 5 of 10 Subdigital 5 of 10 Subdigital 5 of 10 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.
  • Page 104 DW1U BASIC CIRCUIT DIAGRAM Subdigital 6 of 10 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. All DC voltage to be measured with a tester (100 k /V).
  • Page 105 DW1U BASIC CIRCUIT DIAGRAM Subdigital 7 of 10 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. MAIN SYNC SEPARATION All DC voltage to be measured with a tester (100 k /V).
  • Page 106 DW1U BASIC CIRCUIT DIAGRAM Subdigital 8 of 10 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. DIGITAL AUDIO All DC voltage to be measured with a tester (100 k /V).
  • Page 107 DW1U BASIC CIRCUIT DIAGRAM Subdigital 9 of 10 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. SUB-µ...
  • Page 108 DW1U BASIC CIRCUIT DIAGRAM Subdigital 10 of 10 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. SD CARD All DC voltage to be measured with a tester (100 k /V).
  • Page 109 DW1U BASIC CIRCUIT DIAGRAM Terminal 1 of 9 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 All DC voltage to be measured with a tester (100 k /V).
  • Page 110 DW1U BASIC CIRCUIT DIAGRAM Terminal 2 of 9 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. All DC voltage to be measured with a tester (100 k /V).
  • Page 111 DW1U BASIC CIRCUIT DIAGRAM Terminal 3 of 9 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. OPT / SWIVEL All DC voltage to be measured with a tester (100 k /V).
  • Page 112 DW1U BASIC CIRCUIT DIAGRAM Terminal 4 of 9 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 All DC voltage to be measured with a tester (100 k /V).
  • Page 113 DW1U BASIC CIRCUIT DIAGRAM Terminal 5 of 9 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. SW / FILTER All DC voltage to be measured with a tester (100 k /V).
  • Page 114 DW1U BASIC CIRCUIT DIAGRAM Terminal 6 of 9 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. IF / SW / AMP All DC voltage to be measured with a tester (100 k /V).
  • Page 115 DW1U BASIC CIRCUIT DIAGRAM Terminal 7 of 9 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 All DC voltage to be measured with a tester (100 k /V).
  • Page 116 DW1U BASIC CIRCUIT DIAGRAM Terminal 8 of 9 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. RS232C IN All DC voltage to be measured with a tester (100 k /V).
  • Page 117 DW1U BASIC CIRCUIT DIAGRAM Terminal 9 of 9 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. TUNER All DC voltage to be measured with a tester (100 k /V).

  • Page 118: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS DW1-U DW1-U 55 SUBDIGITAL PWB (Component side) DW1-U SUBDIGITAL PWB SEMICONDUCTOR LOCATION ( Component side) QS05 QS06 I401 QS08 I402 QS09 I403 QS10 I404 QS11 INM1 QS12 IP11 QS13 IP12 QS14 IP13 QS18 IP14 QS19 IPG1 QS20 IPK1 QS21 IS03...
  • Page 119 PRINTED CIRCUIT BOARDS DW1-U DW1-U 55 SUBDIGITAL PWB (Solder side) DW1-U SUBDIGITAL PWB SEMICONDUCTOR LOCATION (Solder side) QS15 IM02 QS16 IM03 QS17 IP02 QS27 IP05 QV01 IP15 QV02 IPS1 QW01 IS02 QX01 IT08 QX02 IT09 QX03 IT13 QY01 IV01 QY02 IV02 IV03 DIODE...
  • Page 120 PRINTED CIRCUIT BOARDS DW1-U DW1-U 55 TERMINAL PWB (Component side) DW1-U TERMINAL PWB SEMICONDUCTOR LOCATION ( Component side) Q3A3 I101 Q3A4 I1A1 Q3A5 I1M1 Q3A6 I1P1 QRJ1 I1P2 QRJ2 I1P3 QRJ3 I3A1 QTJ1 I3A2 DIODE I3J1 D101 I3M1 D1A1 IRJ1 D1A2 IRJ2 D1A3...
  • Page 121 PRINTED CIRCUIT BOARDS PRINTED CIRCUIT BOARDS DW1-U DW1-U DW1-U 55 TERMINAL PWB (Solder side) TABLE OF CONTENTS...
  • Page 122 PRINTED CIRCUIT BOARDS DW1-U DW1-U 55 LED PWB (Component side) Component side DIODE IN31 DN01 TRANSISTOR HN30 QN01 HN31 QN02 (Solder side) Solder side IN32 TRANSISTOR QN03 TABLE OF CONTENTS...
  • Page 123 PRINTED CIRCUIT BOARDS DW1-U DW1-U 55 SIDE TERMINALPWB (Component side) (Solder side) Component side TRANSISTOR QNJ1 QNJ2 QNJ3 QNJ5 TABLE OF CONTENTS...
  • Page 124 PRINTED CIRCUIT BOARDS DW1-U DW1-U CONTROLPWB (Component side) (Solder side) Component side INM1 TABLE OF CONTENTS...
  • Page 125 PRINTED CIRCUIT BOARDS DW1-U DW1-U FILTER PWB (Solder side) (Component side) TABLE OF CONTENTS...
  • Page 126 PRINTED CIRCUIT BOARDS DW1-U DW1-U SWITCH PWB (Solder side) (Component side) TABLE OF CONTENTS...
  • Page 127 PRINTED CIRCUIT BOARDS DW1-U DW1-U SWITCH PWB (Solder side) (Component side) Component side INS1 TABLE OF CONTENTS...
  • Page 128 DW1U 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 129 DW1U 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 130 DW1U 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 131 DW1U 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 132 DW1U 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 133 DW1U 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 134 DW1U 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 135 DW1U 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 136 DW1U 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 137 DW1U 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 138 DW1U 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 139 DW1U QUICK REFERENCE PARTS LIST IC’S & UNITS No. Symbol Description Function PWB ASSY Remarks JP08531 PSA DW1-U MAIN-DIG. (42HDS52/42HDT52) MAIN DIGITAL ASS'Y MAIN DIGITAL JP08532 PSA DW1-U MAIN-DIG. (42HDX62) MAIN DIGITAL ASS'Y MAIN DIGITAL DN01 CC02061R LIGHT EMITTING DIODE SML-020ML E901 EP00341 PJD-ACINLET 10DKDG3S...

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55hds52/dw1-u55hdx62/dw1-u

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