LG 42PX2RV Service Manual
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LG 42PX2RV Service Manual

Chassis mf-056a
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All manuals and user guides at all-guides.com
PLASMA TV
SERVICE MANUAL
CHASSIS : MF-056A
MODEL : 42PX2RV
42PX2RV-TA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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  • Page 1 All manuals and user guides at all-guides.com website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html PLASMA TV SERVICE MANUAL CHASSIS : MF-056A MODEL : 42PX2RV 42PX2RV-TA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS SAFETY PRECAUTIONS ..................3 DESCRIPTION OF CONTROLS ................4 SPECIFICATIONS ....................8 ADJUSTMENT INSTRUCTIONS ...............10 TROUBLE SHOOTING GUIDE ................14 BLOCK DIAGRAM .....................23 EXPLODED VIEW....................24 EXPLODED VIEW PARTS LIST ................25 REPLACEMENT PARTS LIST................26 SCHEMATIC DIAGRAM..................PRINTED CIRCUIT BOARD .................. - 2 -...

  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com SAFETY PRECAUTIONS IMPORTANT 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

    All manuals and user guides at all-guides.com 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 I/II HDMI modes. Selects the language during dual lan- switches the set on from standby.
  • Page 5 All manuals and user guides at all-guides.com <Front Panel> ON/OFF TV/AV MENU Main Power Button MENU Displays on screen menus one by one. Remote Control Sensor Exits the current menu. Memorizes menu changes. Power Standby Indicator (Programme Up/Down) TV/AV Button Illuminates red in standby selects a programme or a menu item.
  • Page 6 All manuals and user guides at all-guides.com <Back Panel> A/V 2 A/V 2 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...
  • Page 7 All manuals and user guides at all-guides.com Accessories MUTE POWER TV/AV MULTIMEDIA I/II LIST MENU PIP/DW SLEEP REVEAL PIP PR+ TEXT/ WIN. SIZE PIP PR- POSITION SWAP TIME HOLD PIP INPUT INDEX Owner’s Manual Remote Control handset 2-Eye Bolts 1.5V Alkaline batteries Power Cord 2-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 42PX2RV-TA Non-EU Safety : IEC60065, EMI : CISPR13 General Specification 1. Module Specification Item Specification Remark...
  • Page 9 All manuals and user guides at all-guides.com 2. Model Specification Item Specification Remark Market Non-EU PAL B/G/I/D/K, NTSC Broadcasting system Available Channel BAND NTSC 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 Video Output (1EA) PAL, SECAM, NTSC...

  • Page 10: Adjustment Instructions

    All manuals and user guides at all-guides.com 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 11 All manuals and user guides at all-guides.com 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.
  • Page 12 All manuals and user guides at all-guides.com 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.
  • Page 13 All manuals and user guides at all-guides.com 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 14: Trouble Shooting Guide

    All manuals and user guides at all-guides.com TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Doesn't the Is it identical Is the Interface screen whole come with Power Off signal operated? out? condition?
  • Page 15 All manuals and user guides at all-guides.com 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 15 -...
  • Page 16 All manuals and user guides at all-guides.com 1-3. Sanken, LG INNOTEK Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 16 -...
  • Page 17 All manuals and user guides at all-guides.com 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.
  • Page 18 All manuals and user guides at all-guides.com 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 ¯...
  • Page 19 All manuals and user guides at all-guides.com 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?
  • Page 20 All manuals and user guides at all-guides.com 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...
  • Page 21 All manuals and user guides at all-guides.com 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 22 All manuals and user guides at all-guides.com 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.

  • Page 23: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM - 23 -...

  • Page 24: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW - 24 -...

  • Page 25: Exploded View Parts List

    4980V01069D SUPPORTER, ASSY AL FILTER RIGHT DN-42PX12X 7T 4980V01070D SUPPORTER, ASSY AL FILTER LEFT DN-42PX12X 7T 5230V00019B FILTER(MECH), RT-42PX10 FG401PAA-05 LG CHEMICAL GLASS FILTER MECH 3809V00605A BACK COVER ASSEMBLY, CHASSIS CHANGE 3809V00605E BACK COVER ASSEMBLY, CHASSIS CHANGE WARNING LABEL LGEAP...

  • Page 26: Replacement Parts List

    All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q101 0TR387500AA 2SC3875S(ALY) BK KEC 0TR102008AA KRA102S R/TP KEC SOT23 TR Q102 IC1000 0IPRPML001A MIC39100 MICREL 3P SOT223 R/TP Q102 0TR387500AA 2SC3875S(ALY) BK KEC 0IMCRRH001A...
  • Page 27 All manuals and user guides at all-guides.com 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 28 All manuals and user guides at all-guides.com 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 29 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1024 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L416 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L1025 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L417 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L103 6200JB8010L MLB-201209-1000L-N2 R/TP 1000OHM...
  • Page 31 All manuals and user guides at all-guides.com...
  • Page 32 All manuals and user guides at all-guides.com...
  • Page 33 All manuals and user guides at all-guides.com...
  • Page 34 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN (TOP) MAIN (BOTTOM ) POWER SWITCH(TOP) POWER SWITCH(BOTTOM) SIDE A/V(TOP) SIDE A/V(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM)
  • Page 35 All manuals and user guides at all-guides.com Jun., 2005 P/NO : 3828VD0209V Printed in Korea...

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