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LG 42PX5D Service Manual
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LG 42PX5D Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : DF-057B
MODEL : 42PX5D
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
42PX5D-AB
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 42PX5D

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : DF-057B MODEL : 42PX5D 42PX5D-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 HDMI/DVI Component2, RGB or 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 Power Cord Alkaline batteries 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 42PX5D-AB Australia Safety : IEC60065, EN60065 EMC : CISPR 13 Class B General Specification Specification Item...
  • Page 9 PDP MODULE(PDP42X2xxxx) 1) General Specification Specification Item Remark Unit Display area 920.1(H) * 518.4(V) ± 0.5 Outline dimension 1005(H) * 597(V) * 61.2(D) ± 1 1Pixel = 3RGB Cells Number of Pixels 1024(H) * 768(V) 1Pixel = 3RGB Cells Cell Pitch 300(H) * 676(V) Color arrangement RGB closed type...

  • 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 4-4. EDID S/W Execution and Setting 5. AD9883A-Set Adjustment 1) Connect the Set, EDID Download Jig, PC & Cable. And 5-1. 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) Warm Cool Warm Cool R Gain G Gain B Gain R Offset G Offset B Offset 6-3. 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 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) SIDE A/V(TOP) SIDE A/V(BOTTOM) - 21 -...
  • Page 22 MAIN(BOTTOM) AUDIO - 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,SUB SUB M.I DF057B LED/PHOTO 42PX5D-AB . BUTTERFLY 3501V00220A POWER SUPPLY ASSEMBLY, HURRICANE2 FREE VOLTAGE SANKEN 42” PSU 6871VSMH78B PWB(PCB) ASSEMBLY,SUB A/V M.I DF057B 50PX5D-AB, 42PX5D-AB SIDE AV MANUAL 4811V00173A BRACKET ASSEMBLY, SIDE AV RT-42PX40 AF044A ASSY SIDE AV 6500VR0002B...

  • Page 30: Replacement Parts List

    TC74LCX157FT 16P,TSSOP TP QUAD 2CH IC705 0IMMRSS041G K4S641632H-UC75,LF 54P,TSOP 0ICB533100A IC1205 CS5331A-KSR 8SOIC TP ADC - IC801 692791041AB SOFT WARE, 3.00V 9E4A PDP DF057B 42PX5D-AB IC1206 0IMO330780B MC33078D 8/SOIC TP LINEAR +-18V OP AMP IC802 0IKE704200J KIA7042AF SOT-89 TP 4.2V VOLTAGE DETECTOR IC1301 0ICTMLG018B...
  • 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 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 DESCRIPTION L601 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP ACCESSORIES FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L602 6210VC0006A 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP MANUAL, LG EN 141R TX L607 3828VA0505B L608 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6710V00141R REMOTE CONTROLLER, MB05EA DT-52SX40DB . L609 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 41 Aug., 2005 P/NO : 3828VD0193G Printed in Korea...

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