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LG 42PX3RVC Service Manual

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See also: Owner's Manual
PLASMA TV
SERVICE MANUAL
CHASSIS : MF-056A
MODEL : 42PX3RVC/RV
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
42PX3RVC/RV-TA
TV/AV
MENU
OK
VOL
PR
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 42PX3RVC

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : MF-056A MODEL : 42PX3RVC/RV 42PX3RVC/RV-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. TV/AV MENU...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ..................3 DESCRIPTION OF CONTROLS ................4 SPECIFICATIONS ....................8 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 - When using the remote control aim it at the remote control sensor of the set. - There's maybe a defect in consecutive operation of remote control in specified brightness according to this set feature. MUTE POWER Switches the sound on or off.
  • 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 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 Owner’s 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 8: Specifications

    1) Performance : LGE TV test method followed. 2) Demanded other specification Safety: CE, IEC specification EMC : CE, IEC Model Name Market Remark 42PX3RVC-TA Non-EU Safety : IEC60065, EMI : CISPR13 General Specification 1. Module Specification Item Specification Remark...
  • Page 9 2. Model Specification Item Specification Remark Market Non-EU 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 Video Input (2EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC,PAL60 PAL, SECAM, NTSC Video Output (1EA) 4 System : PAL, SECAM, NTSC,PAL60 S-Video Input (2EA)
  • Page 10 RGB / HDMI mode RGB / HDMI mode Horizontal Vertical Horizontal Vertical Resolution Resolution Frequency(KHz) Frequency(Hz) Frequency(KHz) Frequency(Hz) 31.468 70.09 31.468 70.09 640x350 640x350 37.861 85.08 37.861 85.08 31.469 70.08 31.469 70.08 720x400 720x400 37.927 85.03 37.927 85.03 31.469 59.94 31.469 59.94 35.000...

  • Page 11: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 3-2. Channel memory Method 1) Select “PDP” and “Hurricane” on Model dialog. And check These instructions apply to the MF-056A Chassis. your connection in Communication dialog. (If your connection is ‘NG’, 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 “Ready”) 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 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, LG INNOTEK 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 Does’t 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 Connect the Cable. Board Cable connected? Is the Fuse(F101) on Replace the Fuse.
  • 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 Does’t 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 the normal? voltage except Stand-by 5V? Power 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 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. 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 - 26 -...

  • Page 27: Exploded View Parts List

    PWB(PCB) ASSEMBLY,DISPLAY ZSUS ASSY HAND INSERT 42V7 3091V00816B CABINET ASSEMBLY, RZ-42PX31 STEREO MF056C FILM TYPE 3091V00816E CABINET ASSEMBLY, 42PX3RVC STEREO MF056C FILM TYPE 1 TONE SILVER 4980V01203A SUPPORTER, ASSY AL FILTER TOP RZ-42PX30 4980V01204A SUPPORTER, ASSY AL FILTER BOTTOM RZ-42PX30...

  • Page 28: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q301 0TR387500AA CHIP 2SC3875S(ALY) KEC Q302 0TR387500AA CHIP 2SC3875S(ALY) KEC 0ILNR00015A IC401 NSP-2100A,LF NEOFIDELITY TQFP 64P R/TP Q303 0TR387500AA CHIP 2SC3875S(ALY) KEC IC1201 0IMMRAL014B AT24C02N-10SI-2.7 ATMEL 8P SOIC CHIP 2SC3875S(ALY) KEC Q304 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 6631V39013N SWITCH 6631V39022D 4P 3.96MM 250MM H-H UL1007AWG18 6631V39023D 10P 3.96MM 250MM H-H UL1007AWG18 SW101 140-315A TACT SKHV17910B LG C&D 12V JK500 6630G70016A A03-7071-094 SPG 15P 2.29MM SW102 140-315A TACT SKHV17910B LG C&D 12V A02-0915-101 SPG 9P 2.54MM RS232 JK601...
  • Page 32 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1105 6200J000013 MLB-321611-0500P-N2 MAG LAYERS L506 6200J000013 MLB-321611-0500P-N2 MAG LAYERS MLB-321611-0500P-N2 MAG LAYERS L1106 6200J000013 L604 6200J000013 MLB-321611-0500P-N2 MAG LAYERS 6200J000013 MLB-321611-0500P-N2 MAG LAYERS 6200J000013 MLB-321611-0500P-N2 MAG LAYERS L1107 L900 L1108 6200J000013 MLB-321611-0500P-N2 MAG LAYERS...
  • Page 36 PRINTED CIRCUIT BOARD MAIN (TOP) MAIN (BOTTOM ) SIDE A/V(BOTTOM) CONTROL...
  • Page 37 Apr., 2005 P/NO : 3828VD0209R Printed in Korea...

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