LG 50PX5D Service Manual
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LG 50PX5D Service Manual

LG 50PX5D Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : DF-057B
MODEL : 50PX5D
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
50PX5D-AB
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 50PX5D

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : DF-057B MODEL : 50PX5D 50PX5D-AB 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 ....................8 ADJUSTMENT INSTRUCTIONS ...............10 TROUBLE SHOOTING GUIDE ................13 PRINTED CIRCUIT BOARD ................21 BLOCK DIAGRAM .....................26 EXPLODED VIEW ....................28 EXPLODED VIEW PARTS LIST ................29 REPLACEMENT PARTS LIST................30 SCHEMATIC DIAGRAM..................- 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

    DESCRIPTION OF CONTROLS D/A TV POWER selects analogue or digital mode. switches the set on from standby or off to standby. MODE INPUT selects another device. D/A TV INPUT selects the TV, AV1, AV2, Component1, POWER Component2, RGB or HDMI/DVI modes.
  • Page 5 <Front Panel Controls> INPUT MENU 1. Remote Control Sensor 7. INDEX Switches LED Display on or off. 2. Power Button Switches the set on from standby or off to standby. 8. Power Indicator Illuminates red in standby mode, illuminates green when 3.
  • Page 6 <Back Panel> A/V INPUT2 A/V INPUT2 S-VIDEO AC INPUT 1. RS-232C INPUT (CONTROL/SERVICE) PORT 6. AUDIO/VIDEO IN SOCKETS (A/V INPUT1) Connect to the RS-232C port on a PC. Connect the audio/video out sockets of external equipment to these sockets. 2. CONTROL LOCK / REMOTE CONTROL S-VIDEO/AUDIO IN SOCKETS Connect the S-VIDEO out socket of the VCR to the S-VIDEO 3.
  • Page 7 Accessories D/A TV INPUT POWER MODE TEXT MUTE LIST Q.VIEW SIZE UPDATE INDEX STILL TIME REVEAL I/II PIP PR- PIP PR+ SWAP PIP INPUT M/C EJECT SLEEP Remote Control handset Owner’s Manual 2-Eye Bolts 1.5V Alkaline batteries Power Cord 2-Wall brackets Fixing the set assembly to the wall to protect the set tumbling - Secure the set assembly by fixing it to a wall by using the Eye Bolts/Wall brackets.

  • Page 8: Specifications

    1) Performance : LGE TV test method followed. 2) Demanded other specification Safety: CE, IEC specification EMC : CE, IEC Model Name Market Remark 50PX5D Australia Safety : IEC60065, EN60065 EMC : CISPR 13 Class B General Specification Specification Item...
  • Page 9 PDP MODULE(PDP50X3xxxx) 1) General Specification Specification Item Remark Unit Display area 1106.5(H) * 662.1(V) ± 0.5 Outline dimension 1190(H) * 700(V) * 61(D) ± 1 Number of Pixels 1366(H) * 768(V) 1Pixel = 3RGB Cells Cell Pitch 270(H) * 810(V) 1Pixel = 3RGB Cells Color arrangement RGB vertical stripe...

  • Page 10: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object (2) Va Adjustment 1) After receiving 100% Full White Pattern by Video/RGB These instructions are applied to all of the PDP TV, DF-057B. or selecting White Mode of Heat-Run Mode, Execute HEAT RUN over 10 minutes. 2.
  • Page 11 5-4. EDID S/W Execution and Setting 6. AD9883A-Set Adjustment 1) Connect the Set, EDID Download Jig, PC & Cable. And 6-1. Synopsis Execute the S/W : EDID TESTER Ver,2.5 2) Set up S/W option AD9883A-Set adjustment to set the black level and the Gain Repeat Number : 3 of optimum with an automatic movement from the analog =>...
  • Page 12 [ [ . RS-232C Command (Automatic Adjustment) RS-232C Command CENTER [CMD ID DATA] (DEFAULT)(Hex) Cool Warm Cool Warm R Gain G Gain B Gain R Offset G Offset B Offset 7-3. Adjustment of White Balance(manual) Operate the Zero-calibration of the CA-100, then attach sensor to PDP module surface when you adjust.

  • Page 13: Trouble Shooting Guide

    TROUBLE SHOOTING 1. Sanken Power Board Structure P806 T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 13 -...
  • Page 14 2. Protect Mode (1) Symptom After once shining, it does not discharged minutely fl from the module The Rely falls(The sound is audible “click”) fl It is converted with the color where the front LED fl is red from green. (2) Check following Is the Power Board Is output the normality Low/High...
  • Page 15 3. No Raster (1) Symptom It does not discharged from the module. fl It maintains the condition where the front LED is green. fl (2) Check following Is the Power Board Is output the normality Low/High Replace Power normal? voltage except Stand-by 5V? Board.
  • Page 16 4. No Power (1) Symptom It is not discharged minutely from the module. fl Light does not come in into the front LED. fl (2) Check following Is the power cord plug in? Plug in the power cord. Is the Line Filter and Power Connect the Cable.
  • Page 17 5. In case of occurring strange screen into specific mode 5-1. In case the OSD does not displayed (1) Symptom LED is green fl The minute discharge continuously becomes fl accomplished from module (2) Check following Is the LVDS cable Is the LVDS cable Replace the cable.
  • Page 18 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 fl (2) Check following Check the all input mode should become normality display. fl Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become fl...
  • Page 19 (5) in case of becomes unusual display from Component, RGB-DTV/PC mode Is the Input voltage, IIC Is the CXA2181Q Communication and Replace the IC (IC401) normal? HV sync normal? Is the Input voltage, IIC Is the AD9883 Communication and Replace the IC (IC501) normal? HV sync normal? Is the Input voltage, IIC...
  • Page 20 6. In case of no sound (1) Symptom LED is green fl Screen display but sound is not output fl (2) Check following (If HDMI sound is not output, Check the EDID at first) Is the SPK Is the SPK cable Replace SPK cable cable normal? connected correctly?

  • Page 21: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN(TOP) AUDIO - 21 -...
  • Page 22 MAIN(BOTTOM) SIDE A/V(TOP) SIDE A/V(BOTTOM) - 22 -...
  • Page 23 TUNER(TOP) INDEX(TOP) - 23 -...
  • Page 24 TUNER(BOTTOP) INDEX(BOTTOM) - 24 -...
  • Page 25 EPF(TOP) EPF(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM) - 25 -...

  • Page 26: Block Diagram

    BLOCK DIAGRAM - 26 -...
  • Page 27 - 27 -...

  • Page 28: Exploded View

    EXPLODED VIEW - 28 -...

  • Page 29: Exploded View Parts List

    PWB(PCB) ASSEMBLY,DISPLAY YSUS ASSY HAND INSERT FOR 50X3 6871QZH044A PWB(PCB) ASSEMBLY,DISPLAY ZSUS ASSY HAND INSERT FOR 50X3 3091V00787B CABINET ASSEMBLY,50PX5D-AB STEREO E_PHONE AF05FB BLACK&TIAN SILVER 2TONE 4980V01138B SUPPORTER, ASSY AL FILTER TOP 50PX40 4980V01140B SUPPORTER, ASSY AL FILTER BOT. 50PX40...

  • Page 30: Replacement Parts List

    UDA1334BTS PHILIPS SSOP 16P R/TP IC1001 0IMCRXL004A XC95288XL-10TQG144C,LF XILINX 144P IC503 0IMCRTI028C TAS5122DCARG4,LF 56P/TSSOP R/TP 30W IC1003 0ICTMLG013A LGDT1901A LG IC 24P SSOP TRAY DPLL IC504 0IMCRTI028C TAS5122DCARG4,LF 56P/TSSOP R/TP 30W 0IMCRCY002A IC1004 CY2309SXC-1HT CYPRESS SOIC 16P IC505 0IMCRSJ001A SC1565IST-1.8 SEMTECH 3P SOT223 TP...
  • Page 31 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 32 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 33 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 34 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 35 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION AR1003 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 L104 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP AR1004 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 L104 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 36 FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP ACCESSORIES L602 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L607 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0505B MANUAL, EPF LG EN 141R TX L608 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6710V00141R REMOTE CONTROLLER, MB05EA DT-52SX40DB . 6210VC0006A L609 FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 41 Aug., 2005 P/NO : 3828VD0193E Printed in Korea...

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