LG 42PX4DV Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Plasma TV
  5. 42PX4DV
  6. Service manual
LG 42PX4DV Service Manual

LG 42PX4DV Service Manual

Hide thumbs Also See for 42PX4DV:
Table of Contents

Advertisement

Quick Links

PLASMA TV
SERVICE MANUAL
CHASSIS : DF-054A
MODEL : 42PX4DV
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
42PX4DV-EA
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

Advertisement

Table of Contents
loading

Related Manuals for LG 42PX4DV

Summary of Contents for LG 42PX4DV

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : DF-054A MODEL : 42PX4DV 42PX4DV-EA 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 ................15 PRINTED CIRCUIT DIAGRAM ................24 BLOCK DIAGRAM .....................28 EXPLODED VIEW ....................30 EXPLODED VIEW PARTS LIST ................31 REPLACEMENT PARTS LIST................32 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

    REVEAL I/II Returns to the previously viewed programme. (In Analogue mode only) VCR/DVD BUTTONS I/II Controls a LG video cassette recorder. Selects the language during dual language controls a LG DVD player. broadcast. Selects the sound output. - 4 -...
  • Page 5 <Front Panel Controls> TV/AV MENU 1. Power Button (Programme Up/Down) Switches the set on from standby or off to standby. Selects a programme or a menu item. Switches the set on from standby. 2. Remote Control Sensor (Volume Up/Down) Adjusts the volume. 3.
  • Page 6 <Back Panel> A A V5 S-VIDEO AC INPUT 1. PCMCIA (Personal Computer Memory Card 8. COMPONENT INPUT International Association) Card Slot Connect DVD video outputs to Y, P of COMPONENT INPUT and audio outputs to Audio sockets of AUDIO 2. ANTENNA INPUT/OUTPUT INPUT.
  • Page 7 Accessories D/A TV INPUT POWER TEXT MUTE LIST Q.VIEW SIZE UPDATE INDEX STILL TIME REVEAL I/II PIP PR- PIP PR+ SWAP PIP INPUT Remote Control handset Owner’s Manual 2-Eye Bolts 1.5V Power Cord Alkaline batteries 2-Wall brackets Joining the set assembly to the wall to prevent the set tumbling - Secure the set assembly by fixing it to a wall by using the Eye Bolts/Wall brackets.

  • Page 8: Specifications

    Aspect Ratio 16:9 PDP Module PDP42V7xxxx, RGB Closed Type, Film Filter Operating Environment 1)Temp. : 0~40deg 2)Humidity : 0~85% Storage Environment 3)Temp. : -20~60deg 4)Humidity : 0~85% Input Voltage 100-240V~, 50/60Hz Maker : Sony/ LG Innotek/ Sanken - 8 -...
  • Page 9 2) Model General Specification Item Specification Remark Market The United Kingdom Broadcasting system 1) PAL-BG 2) PAL-DK 3) PAL-I,I’ 4)DVB-T(ID TV) Receiving system Analog : Upper Heterodyne Digital : COFDM Scart Jack (3EA) PAL, SECAM Video (2EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC, PAL60 S-Video Input (2EA) PAL, SECAM, NTSC...

  • Page 10: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 3-2. Channel memory Method 1) Select “PDP” and “Hurricane” on Model dialog. And check These instructions is applied all of the 42” PDP TV, DF-054A your connection in Communication dialog. (If your Chassis. connection is ‘NG’, then set your PORT(COM1,2,3,...) correctly.) 2.

  • Page 11: Adjustment Method

    4.Sub Program Down Load 1) Select “ PDP” and “Hurricane” on Model dialog. and check your connection in Communication dialog. (If your connection is ‘NG’, then set your PORT(COM1,2,3,...) correctly. 2) Connect RS232 cable and turn on the power. (Use the special Cable for Sub-program) (If your connection has completed, you can see ‘Ready’) 3) Select proper ‘Model’...

  • Page 12: 1) Within The Pattern, Color Sequence Should Be Aligned

    Auto adjustment Map(RS-232C) It is very import to use adjustment pattern like Fig.7 1) Within the pattern, color sequence should be aligned Type DF-054A : 42PX4DV : W-Y-C-G-M-R-BLUE-BLACK (If color seqence is reversed (Black -> ... -> White), Baud Rate...

  • Page 13: W-Y-C-G-M-R-Blue-Black

    8-3. Adjustment of White Balance (For Manual adjustment) Operate the zero-calibration of the CA-100, then stick sensor to PDP module surface when you adjust. For manual adjustment, it is also possible by the following sequence. 1) Select white pattern of heat-run mode by pressing power on key on remote control for adjustment then operate heat run more than 15 minutes.
  • Page 14 (Fig. 11) Auto RGB Color Balance Test Pattern 10. Default value in adjustment mode 10-1. Auto Color Balance (Component/RGB) Auto Color Balance(HEX) Auto-RGB To Set Source Cortez Offset1 Green Offset1 Blue Offset1 Offset2 Green Offset2 Blue Offset2 Gain Green Gain Blue Gain Reset...

  • Page 15: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Is it identical Doesn't the Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2.
  • Page 16 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 16 -...
  • Page 17 1-3. Sanken, LGIT Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 17 -...
  • Page 18 2. No Power (1) Symptom It is not discharged minutely from the module. ¯ Light does not come in into the front LED. ¯ (2) Check following Is plug in power cord? Plug in power cord. Is the Line Filter and Power Connect the Cable.
  • Page 19 3. Protect Mode (1) Symptom After once shining, it does not discharge minutely ¯ from module The Rely falls(The sound is audible “click”) ¯ It is converted with the color where the front LED ¯ is red from green. (2) Check following Is the Power Board Is output the normality Low/High Replace Power...
  • Page 20 4. No Raster (1) Symptom It does not discharged from the module. ¯ It maintains the condition where the front LED is green. ¯ (2) Check following Is the Power Board Is output the normality Low/High Replace Power normal? voltage except Stand-by 5V? Board.
  • Page 21 5. In the case of occurring strange screen into specific mode 5-1. In case the OSD does not displayed (1) Symptom LED is green ¯ The minute discharged continuously becomes ¯ accomplished from module (2) Check following Is the LVDS cable Is the LVDS cable Replace the cable.
  • Page 22 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 ¯ (RF, AV, Component, RGB, DVI). (2) Check following Check the all input mode should become normality display. ¯...
  • Page 23 6. In case of no sound (1) Symptom LED is green ¯ Screen display but sound is not output ¯ (2) Check following Is the SPK cable Is the SPK cable Replace SPK cable normal? connected well? Cable inserts well. Does IC400 Does IC401 Does IC402...

  • Page 24: Printed Circuit Diagram

    PRINTED CIRCUIT BOARD MAIN(TOP) - 24 -...
  • Page 25 MAIN(BOTTOM) - 25 -...
  • Page 26 DIGITAL(TOP) SIDE A/V(TOP, BOTTOM) - 26 -...
  • Page 27 DIGITAL (BOTTOM) CONTROL(TOP) CONTROL(BOTTOM) - 27 -...

  • Page 28: Block Diagram

    BLOCK DIAGRAM - 28 -...
  • Page 29 MEMO - 29 -...

  • Page 30: Exploded View

    EXPLODED VIEW - 30 -...

  • Page 31: Exploded View Parts List

    PWB(PCB) ASSEMBLY,DISPLAY XRRT ASSY HAND INSERT 42V7 XR B/D 6871QYH036A PWB(PCB) ASSEMBLY,DISPLAY YSUS ASSY HAND INSERT 42V7 6871QZH041A PWB(PCB) ASSEMBLY,DISPLAY ZSUS ASSY HAND INSERT 42V7 3091V00863B CABINET ASSEMBLY, 42PX4DV-EA DF054A SECOND TOOL FOR LGEMA PHANTOM 3110V00445C CASE, TOP RT-42PX40 EGI C/SKD 3110V00444C CASE, BOTTOM RT-42PX40 EGI C/SKD 3110V00442C...

  • Page 32: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC703 6927V1125AA SOFT WARE3.15V E2E5 PDP DF054A 42PX4DV-EA 0IMCR02005A IC800 FLI8532BD-LF GENESIS 416P/PBGA IC100 0IMMRSS107B K4S281632F-UC75,LF 54P,TSOP IC802 0IMMR00023A 24LC32AT-I/SNG(PB FREE) MICRO IC1000 0IPRPML001A MIC39100 3P SOT223 R/TP LDO TYPE 2.5V...
  • 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 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION AR302 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 COIL 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 AR303 0RRZVTA001D 6140VB0004B 26UH 1UEWPHY 22.5TURN YL-9N 0.4 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 L1000...
  • Page 37 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1107 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SWITCH FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1108 6210VC0006A 6600VR1004A SKHMPW 5P CHIP TACT J-ALPS .V .A 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1109 SW101 140-315A TACT SKHV17910B 12V 0.05A HORIZONTAL 160G L111 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 38 FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L226 ACCESSORIES L228 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L300 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0536A MANUAL,OWNERS LG EN 141D TX L301 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6710V00141D REMOTE CONTROLLER,DF054A DI-42PX40 63KEY FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L301 6210VC0006A 6410VBH003C...
  • Page 43 Apr., 2005 P/NO : 3828VD0221A Printed in Korea...

This manual is also suitable for:

42px4dv-ea

Table of Contents