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LG DT-42PY10X Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : AF-046A
MODEL : DT-42PY10X
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG DT-42PY10X

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : AF-046A MODEL : DT-42PY10X CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ...................3 DESCRIPTION OF CONTROLS ................ 4 SPECIFICATIONS .................... 13 ADJUSTMENT INSTRUCTIONS ..............14 TROUBLE SHOOTING GUIDE ................17 BLOCK DIAGRAM .....................31 EXPLODED VIEW ....................32 EXPLODED VIEW PARTS LIST ................33 REPLACEMENT PARTS LIST................34 SCHEMATIC DIAGRAM ..................PRINTED CIRCUIT BOARD .................. - 2 -...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.

  • Page 4: Description Of Controls

    SKIP returns to TV viewing from any menu. VCR BUTTONS SSM (Sound Status Memory) PIP PR- PIP PR+ SWAP PIP INPUT controls a LG video cassette recalls your preferred sound setting. recorder. UPDATE SIZE STILL I/II DVD BUTTONS TIME REVEAL INDEX controls a LG DVD player.
  • Page 5 <Front Panel Controls> Remote Control Sensor Power Standby Indicator Illuminates red in standby mode, Illuminates green when the set is turned on ON/OFF TV/AV MENU TV/AV Button selects the TV, AV, Component, RGB or DVI modes. If OSD is dis- played, selects menu item.
  • Page 6 - Shown is a simplified representation of the set. - Here shown may be somewhat different from your set. - This manual explains the features available on the DT-50PY10 series. <Back Panel> DIGITAL AUDIO (OPTICAL) MONITOR COMPONENT 2 OUTPUT COMPONENT 1 INPUT INPUT 1 Antenna...
  • Page 7 Antenna Connection - Be careful for the bronze wire not to be bended in connecting to antenna input port. COMPONENT AUDIO RS-232C INPUT DVI INPUT AUDIO INPUT RGB INPUT REMOTE Antenna CONTROL (CONTROL/SERVICE) (MONO) S-VIDEO VIDEO AUDIO Apartments (connecting to wall antenna socket) wall antenna socket <...
  • Page 8 Watching Cable TV - After subscribing for a local cable TV station and installing a converter you can watch cable TV. - For further information of cable TV, contact the local cable TV station. To watch cable TV < Back panel of the set > 1.
  • Page 9 Watching external AV source - When connecting the set to an external source, match the colours of AUDIO/VIDEO input jacks on the set with the output jacks on the audio/video equipment: Video = yellow, Audio (Left) = white, Audio (Right) = red. How to use <...
  • Page 10 Connecting PC How to connect To get the best picture quality, adjust the PC graphics card to 1024x768, 60Hz. Use the set’s RGB INPUT or DVI (Digital Visual Interface) INPUT port for video connections, depending on your PC connector. If the graphic card on the PC does not output RGB and DVI simultaneously, connect only one of either RGB INPUT or DVI INPUT to display the PC on the set.
  • Page 11 Screen Adjustments - This function works in the following mode: Component 1, Component 2, RGB-PC, RGB-DTV or DVI-DTV Press the OK button and then button to select the desired picture item. D D / E E POSITION Press the button and then button to make appropriate adjust- F F / G G D D / E E...
  • Page 12 Accessories Accessories CABLE AUDIO MODE FAVOURITE Q.VIEW PIP/DW TEXT/ MENU EXIT PIP PR- PIP INPUT PIP PR+ SWAP PLAY PAUSE STOP RECORD 1.5V SKIP REVEAL WIN.SIZE WIN.POSITION SLEEP I/II SPLIT ZOOM LIST Owner’s Manual Alkaline batteries Remote Control handset 2-TV bracket bolts (or DT-50PY10 series: 4-TV 2-TV brackets 6-RING SPACER...

  • Page 13: Specifications

    Maker : SONY(42 inch) SONY/Sanken(50 inch) LG(60 inch) PDP Module PDP42X2xxxx PDP50X2xxxx RGB Closed Type PDP60X5xxxx Aspect ratio 16:9 Screen Filter 45% Total light transmittance(E-Mesh) Maker : LG Chemical Operating Temperature Operating Humidity Storage Temperature Storage Humidity - 13 -...

  • Page 14: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object These instructions are applied to all of the PDP TV, AF-046A. Each PCB Assy must be checked by Check JIG Set before assembly. (Especially, be careful Power PCB Assy which can cause Damage to the PDP Module.) 2.
  • Page 15 5. EDID(The Extended Display Identification Data)/DDC (Display Data Channel) download This is the function that enables “Plug and Play". 5-1. Required Test Equipment 1) PC, Jig for adjusting DDC (PC serial to D-sub. <Fig. 3> Adjustment Pattern : 720P 60Hz Color Bar Pattern Connection equipment) 2) D-Sub to DVI Connector 6-3.
  • Page 16 (6) Adjust the High Light using R Gain/B Gain. (7) Adjust using Volume +/- KEY.(G Gain: 127) DT-42PY10X : R Offset : 50/ B Offset : 48/ B Offset: 50 DT-50PY10 : R Offset : 52/ B Offset : 45/ B Offset: 60 DT-60PY10 : R Offset : 55/ B Offset : 50/ B Offset: 55 X;...

  • Page 17: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Doesn't the It is identical Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2.
  • Page 18 1-2. DT-42PY10X Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 18 -...
  • Page 19 1-3. DT-50PY10 Sony Power Board Structure T502 : Vs Trans T702 : Va Trans T101 : St-by Trans T103 : Low Voltage Trans - 19 -...
  • Page 20 1-3. DT-50PY10 Sanken Power Board Structure T221 : Vs Trans T271 : Va Trans T121 : St-by Trans T201 : Low Voltage Trans - 20 -...
  • Page 21 1-4. DT-60PY10 Power Board Structure AC-IN - 21 -...
  • Page 22 - 22 -...
  • Page 23 DC-DC - 23 -...
  • Page 24 2. No Power (1) Symptom Does’t minute discharge at module. Ø Non does not come in into the front LED. Ø (2) Check follow Is plug in power cord? Plug in power cord. Is connected the Line Filter and Connect the Cable. Power Switch Cable? Is connected the Power Switch and Connect the Cable.
  • Page 25 3. Protect Mode (1) Symptom After once shining, it does not discharge minutely Ø from module The Rely falls(The sound is audible “click”) Ø It is converted with the color where the front LED Ø is red from green. (2) Check follow Is normal the Power Is output the normality Low/High Replace Power...
  • Page 26 4. No Raster (1) Symptom Does’t minute discharge at module. Ø It maintains the condition where the front LED is green. Ø (2) Check follow Is normal the Power Is output the normality Low/High Replace Power Board? voltage except Stand-by 5V? Board.
  • Page 27 5. In case of occur strange screen into specific mode 5-1. In case of does’t display the OSD (1) Symptom LED is green Ø The minute discharge continuously becomes Ø accomplished from module (2) Check follow Is normal the LVDS Is connected the LVDS Replace the cable.
  • Page 28 5-2. In case of does’t display the screen into specific mode (1) Symptom The screen does not become the display from specific input mode Ø (2) Check follow Check the all input mode should become normality display. Ø Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become Ø...
  • Page 29 (5) in case of becomes unusual display from Component, RGB-DTV/PC mode Is normal the Input voltage, IIC Is normal the Replace the IC Communication and HV sync? CXA2181Q(IC401)? Is normal the Is normal the Input voltage, IIC Replace the IC AD9883(IC501)? Communication and HV sync? Is normal the Input voltage, IIC...
  • Page 30 6. In case of no sound (1) Symptom LED is green Ø Screen display but sound is not output Ø (2) Check follow Is normal the SPK Is connected the SPK Replace the SPK cable? cable correctly? Connect the Cable correctly Is connected the Flat Connect the Cable cable correctly...

  • Page 31: Block Diagram

    BLOCK DIAGRAM BLOCK DIAGRAM - 31 -...

  • Page 32: Exploded View

    EXPLODED VIEW - 32 -...

  • Page 33: Exploded View Parts List

    BOARD ASSEMBLY, ASSY AP-42DY11 AF045A DESK STAND, WITHOUT PACKING” 3301V00027G PLATE ASSEMBLY, ASSY 3301V00022 DT-42PY10X 6871VMMT40B PWB(PCB) ASSEMBLY,MAIN AF-046A AUS DT-42PY10X DIGITAL MANUAL 6871VSMS12B PWB(PCB) ASSEMBLY,SUB TUNER AF046A AUS SUB DT-42PY10X ANALOG MANUAL 6871VSMZ74A PWB(PCB) ASSEMBLY,SUB PSW AF044B DN/U-50PY/X10 5020V00918A BUTTON, POWER DN-42PY10 ABS, AF-303S 1KEY 6871VSMJ97A...

  • Page 34: Replacement Parts List

    IC704 0IMMRSS041D IC1001 0IMCRXL004A XC95288XL-10TQG144C XILINX 144P IC705 0IMMRSS041D K4S641632H-TL75 54P TSOP IC1003 0ICTMLG013A LGDT1901A LG IC 24P SSOP TRAY DPLL IC801 0IMI372726A COPY M37272EFSP6(OTP) 42SDIP BK 0IMCRCY002A IC1004 CY2309SC-1HT CYPRESS SOIC 16P IC802 0IKE704200J KIA7042AF SOT-89 TP 4.2V VOLTAGE...
  • Page 35 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 36 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 37 LPK-1322A SOOJUNG 22UH +-10% SW1101 6600VR1004A SKHMPW 5P CHIP .V .A HORIZONTAL .G L508 6140VB0024A LPK-1322A SOOJUNG 22UH +-10% SW201 140-315A TACT SKHV17910B LG C&D 12V 6140VB0024A LPK-1322A SOOJUNG 22UH +-10% 140-315A L509 SW202 TACT SKHV17910B LG C&D 12V L601 6140VB0004B 26UH 1UEWPHY 22.5TURN YL-9N 0.4...
  • Page 38 FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1631 ACCESSORIES L1632 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1633 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0505A MANUAL,OWNERS LG EN TX 026H L302 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6710V00116X REMOTE CONTROLLER, MB04EA PIP FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L405 6210VC0006A 6410VSH001E...
  • Page 42 PRINTED CIRCUIT BOARD MAIN (BOTTOM) MAIN (TOP) POWER S/W(TOP) POWER S/W(BOTTOM) SIDE A/V (TOP) SIDE A/V (BOTTOM) CONTROL (TOP) CONTROL (BOTTOM) INDEX (TOP) INDEX (BOTTOM) TUNER (TOP) TUNER (BOTTOM)
  • Page 43 Dec., 2004 P/NO : 3828VD0193A Printed in Korea...

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