LG 42PX3RV Service Manual
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LG 42PX3RV Service Manual

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See also: Owner's Manual
PLASMA TV
SERVICE MANUAL
CHASSIS : MF-056A
MODEL : 42PX3RV/RVB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
42PX3RV/RVB-ZA
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 42PX3RV

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : MF-056A MODEL : 42PX3RV/RVB 42PX3RV/RVB-ZA 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 ....................9 ADJUSTMENT INSTRUCTIONS ...............11 TROUBLE SHOOTING GUIDE ................15 BLOCK DIAGRAM .....................24 EXPLODED VIEW ....................26 EXPLODED VIEW PARTS LIST ................27 REPLACEMENT PARTS LIST................28 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

    DESCRIPTION OF CONTROLS MUTE POWER Switches the sound on or off. switches the set on from standby or off to standby. MULTIMEDIA MUTE POWER Selects the Component, RGB or DVI I/II modes. Selects the language during dual lan- switches the set on from standby. guage broadcast.
  • Page 5 <Front Panel Controls> TV/AV MENU TV/AV MENU 1. Remote Control Sensor 6. OK Accepts your selection or displays the current mode. 2. Power Indicator Illuminates red in standby mode, Illuminates green when the (Programme Up/Down) set is turned on. Selects a programme or a menu item. Switches the set on from standby.
  • Page 6 <Back Panel> A/V INPUT2 A/V INPUT2 S-VIDEO AC INPUT VIDEO VIDEO AUDIO AUDIO VIDEO VIDEO AUDIO AUDIO Antenna HDMI/ COMPONENT COMPONENT INPUT INPUT 2 2 MONIT MONITOR OUTPUT OR OUTPUT RGB INPUT AUDIO INPUT DVI(VIDEO) AUDIO AUDIO V V ARIABLE ARIABLE AUDIO OUT AUDIO OUT REMOTE...
  • Page 7 RGB / HDMI mode Horizontal Vertical Resolution Frequency(KHz) Frequency(Hz) 31.468 70.09 640x350 37.861 85.08 31.469 70.08 720x400 37.927 85.03 31.469 59.94 35.000 66.66 640x480 37.861 72.80 37.500 75.00 43.269 85.00 31.500 60.00 848x480 37.799 70.00 39.375 75.00 31.500 60.00 37.799 70.00 852x480 39.375...
  • Page 8 Accessories Accessories MUTE POWER TV/AV MULTIMEDIA I/II LIST MENU SPLIT ZOOM PIP/DW SLEEP REVEAL PIP PR+ TEXT/ WIN. SIZE PIP PR- POSITION SWAP TIME HOLD PIP INPUT INDEX Remote Control handset OwnerÕs Manual 2-Eye Bolts 1.5V Power Cord Alkaline batteries 2-Wall brackets Joinning the TV assembly to the wall to protect the set tumbling - Secure the TV assembly by joinning it to a wall by using the Eye Bolts/Wall brackets.

  • Page 9: Specifications

    1) Performance : LGE TV test method followed. 2) Demanded other specification Safety: CE, IEC specification EMC : CE, IEC Model Name Market Remark 42PX3RV-ZA Safety : IEC/EN60065, EMI : EN55013, EMS : EN55020 General Specification 1. Module Specification Item Specification Remark...
  • Page 10 2. Model Specification (42PX3RV-ZA) Item Specification Remark Market Broadcasting system PAL B/G/I/D/K, NTSC BAND NTSC Available Channel VHF/UHF C1~C69 2~83 CATV S1~S47 1~71 Receiving system Upper Heterodyne SCART Jack(3EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC,PAL60 PAL, SECAM, NTSC...

  • Page 11: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 3-2. Channel memory Method 1) Select ÒPDPÓ and ÒHurricaneÓ on Model dialog. And check These instructions apply to the MF-056A Chassis. your connection in Communication dialog. (If your connection is ÔNGÕ, then set your PORT(COM1,2,3,...) 2.

  • Page 12: Adjustment Method

    2) Connect RS-232C cable and turn on the power. (Use the 5. EDID (The Extended Display special Cable For Sub-program) (If your connection has Identification Data)/ DDC (Display completed, you can see ÒReadyÓ) Data Channel) download 5-1. Required Test Equipment 1) Adjusting PC with S/W for writing EDID Data.(S/W : EDID TESTER Ver.2.5) 2) A Jig for EDID Download...
  • Page 13 6. Auto AV(CVBS) Color Balance Auto adjustment Map(RS-232C) Type MF-056A : RT-42PX40/ RZ-42PX40 6-1. Required - This AV color balance adjustment should be performed befor Baud Rate Data bit Stop bit Parity white Balance Adjustment 115200 NONE 6-2. Required Equipment Index Cmd1 Cmd2 Data Min Value...
  • Page 14 8. Auto Component Color Balance 9. Default Value in Adjustment mode 8-1. Required Test Equipment 9-1. Auto Color Balance (Component/RGB) 1) Remote controller for adjustment 2) 802F Pattern Generator Auto Color Balance(HEX) (Which has 720p Ypbpr output & PC 1024x768 60Hz with Standard(0.7Vpp) Vertical 100% Color Bar Pattern as Fig.8) Auto-RGB) To Set...

  • 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 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 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 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 DoesÕt minute discharge at module. ¯ Non 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 Board 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 ÒclickÓ) ¯ 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 DoesÕt minute discharge at 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 case of occurring strange screen into specific mode 5-1. In case the OSD does not displayed (1) Symptom LED is green ¯ The minute discharge 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 doesÕt 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. Is the RF/ AV/ Does IC400 Does IC401...

  • Page 24: Block Diagram

    BLOCK DIAGRAM - 24 -...
  • Page 25 MEMO - 25 -...

  • Page 26: Exploded View

    EXPLODED VIEW...

  • Page 27: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Descriptions 6401VD0032A SPEAKER ASSEMBLY, FULL RANGE(R) RZ-42PX30 FILM TYPE 6401VD0033A SPEAKER ASSEMBLY, FULL RANGE(L) RZ-42PX30 FILM TYPE 6348Q-E080W PDP, 42Ó 852*480 PDP42V70102.ADLGB 6871QCH053A PWB(PCB) ASSEMBLY,DISPLAY CTRL ASSY HAND INSERT 42V7 FPGA 6871QDH084A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V7 YDRV TOP B/D 6871QDH085A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V7 YDRV BTM B/D 6871QLH047A...

  • Page 28: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q104 0TR387500AA CHIP 2SC3875S(ALY) KEC Q1200 0TR387500AA CHIP 2SC3875S(ALY) KEC 0IPRPML001A IC1000 MIC39100 MICREL 3P SOT223 R/TP Q200 0TR150400BA CHIP 2SA1504S(ASY) KEC IC1001 0IMCRRH001A BA033FP-E2 ROHM 3P-SOP,TO252-3 CHIP 2SC3875S(ALY) KEC Q201 0TR387500AA...
  • Page 29 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 30 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 31 SAM5670(DL-2LRG) BK Y-GREEN - L1117 6200J000013 L1118 6200J000013 MLB-321611-0500P-N2 MAG LAYERS SWITCH L1119 6200J000013 MLB-321611-0500P-N2 MAG LAYERS SW101 140-315A TACT SKHV17910B LG C&D 12V L1120 6200J000013 MLB-321611-0500P-N2 MAG LAYERS MLB-321611-0500P-N2 MAG LAYERS SW102 140-315A TACT SKHV17910B LG C&D 12V L1121 6200J000013 140-315A 6200J000013...
  • Page 32 L120 6200JB8010L MLB-201209-1000L-N2 MAG LAYERS ACCESSORIES MLB-321611-0500P-N2 MAG LAYERS L1204 6200J000013 6200J000013 MLB-321611-0500P-N2 MAG LAYERS L1205 3828VA0545F MANUAL,OWNERS MF056A EU/42PX3RV L1206 6200J000013 MLB-321611-0500P-N2 MAG LAYERS 6710V00126R REMOTE CONTROLLER, RF043A PIP L1207 6200J000013 MLB-321611-0500P-N2 MAG LAYERS 6410VEH003C POWER CORD, M2511A-001 2800MM...
  • Page 36 PRINTED CIRCUIT BOARD MAIN (TOP) MAIN (BOTTOM ) SIDE A/V(BOTTOM) CONTROL...
  • Page 37 Apr., 2005 P/NO : 3828VD0209Q Printed in Korea...

This manual is also suitable for:

42px3rvb-za42px3rvb42px3rv/rvb-za42px3rv/rvb

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