LG RT-42PX12X/XH Service Manual
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LG RT-42PX12X/XH Service Manual

Chassis : rf-043b
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PLASMA TV
SERVICE MANUAL
CHASSIS : RF-043B
MODEL : RT-42PX12X/XH
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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Summary of Contents for LG RT-42PX12X/XH

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : RF-043B MODEL : RT-42PX12X/XH 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 .................... 13 ADJUSTMENT INSTRUCTIONS ..............14 TROUBLE SHOOTING GUIDE ................19 BLOCK DIAGRAM .....................30 EXPLODED VIEW ....................32 EXPLODED VIEW PARTS LIST ................33 REPLACEMENT PARTS LIST................34 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 - Shown is a simplified representation of the set. - Here shown may be somewhat different from your set. <Front Panel Controls> ON/OFF TV/AV MENU TV/AV MENU Main Power Button MENU Displays on screen menus one by one. Exits the current menu. Remote Control Sensor Memorizes menu changes.
  • Page 6 <Back Panel> AC INPUT Antenna COMPONENT MONITOR INPUT 2 OUTPUT AUDIO INPUT RS-232C INPUT DVI INPUT RGB INPUT REMOTE COMPONENT (CONTROL/SERVICE) CONTROL INPUT 1 INPUT1 S-VIDEO L/MOND VIDEO AUDIO AUDIO VIDEO 1. CONTROL LOCK / REMOTE CONTROL 6. ANTENNA INPUT 2.
  • Page 7 Antenna Connection - Be careful for the bronze wire not to be bended in connecting to antenna input port. Apartments (connecting to wall antenna socket) wall antenna socket VIDEO AUDIO AUDIO VIDEO L/MOND AC INPUT Antenna COMPONENT MONITOR OUTPUT INPUT 2 AUDIO INPUT INPUT RGB INPUT...
  • Page 8 Watching Cable TV - After subscribing for a local cable TV station and installing a converter you can watch cable TV. - For further information of cable TV, contact the local cable TV station. To watch cable TV < Back panel of the set > 1.
  • Page 9 Watching DVD How to connect < Back panel of the set > Connect DVD video outputs to Y, P of COMPO- NENT INPUT and audio outputs to Audio sockets of AUDIO INPUT. How to use 1. Turn on the DVD player, and insert a DVD. 2.
  • Page 10 Connecting PC - To enjoy vivid picture and sound, connect a PC to the set. - Avoid keeping a fixed image on the set’s screen for a long period of time. The fixed image may become permanently imprinted on the screen; use a screen saver when possible. - Connect PC to the RGB INPUT(PC INPUT) or DVI INPUT(DIGITAL RGB INPUT) port of the set;...
  • Page 11 Displayable Monitor Specification Displayable Monitor Specification RGB / DVI mode RGB / DVI 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...
  • Page 12 Accessories Accessories MUTE POWER TV/AV MULTIMEDIA I/II LIST MENU SPLIT ZOOM PIP/DW SLEEP REVEAL PIP PR+ TEXT/ 1.5V WIN. SIZE PIP PR- POSITION SWAP TIME HOLD PIP INPUT INDEX Remote Control handset 2-TV bracket bolts Owner’s Manual Alkaline batteries 2-TV brackets D-sub 15 pin cable (Optional) Power Cord DVI Cable (Optional)

  • Page 13: Specifications

    SPECIFICATIONS MODEL RT-42PX10/11/H RT-42PX12X/H RT-42PX20/21/H RT-42PX20/H Width (inches / mm) 48.4 / 1210 27.6 / 701 Height (inches / mm) Depth (inches / mm) 3.8 / 96 Weight (pounds / kg) 66 / 29.9 Power requirement AC100-240V, 50/60Hz Resolution 852 x 480 (Dot) 1024 x 768 (Dot) Colour 16,770,000 (256 steps of each R, G and B)

  • Page 14: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object (2) select ‘Create Shortcut’ from the menu with the left mouse button and move the shortcut icon onto the desktop. These instructions apply to the RF-043B Chassis. (3) Double-click on the ‘LGIDS’ icon on the desktop to execute the program.
  • Page 15 4-2. KEY Generation (Fig. 3) 4. HDCP Download (Fig. 5) 4-1. LGIDS Setting Method (1) Click on ‘setup’ to install in your directory. (1) Click on ‘Key Generation (G)’. (2) After installation is completed, check if the file shown on (2) Input the number of the key in Generation count.
  • Page 16 (6) It is possible to check how many Generations are created at this point. (Fig. 7) shows that you have created 130 Generations and you will start from 131 next time. (Fig. 7) (Fig. 10) Abnormal State 4-3. HDCP Download Method (4) If abnormal state (Fig.
  • Page 17 5-4. Adjustment Method for 6. DDC Data Input P/No. 3501V00182A B/D 6-1. Required Test Equipment (1) A jig for adjusting PC, DDC (PC serial to D-sub (1) Va Adjustment Connection equipment) 1) After receiving 100% Full White Pattern, HEAT RUN. (2) S/W for writing DDC (EDID Data Write &...
  • Page 18 7. Adjustment of White Balance 8-2. Method of Auto RGB Color Balance (1) Input RGB Source : Component 480p/576p 16 Gray Scale 7-1. Required Equipment Pattern At this time, except Pb and Pr signal, only Y signal insert. Color Analyzer (CA-100 or same product) (2) Press ADJ KEY on R/C for adjustment.

  • Page 19: 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 20 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 20 -...
  • Page 21 1-3. Sanken Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 21 -...
  • Page 22 2. No Power (1) Symptom Does’t minute discharge at module. ¯ Non does not come in into the front LED. ¯ (2) Check follow Is plug in power cord? Plug in power cord. Is connect the Line Filter and Power Connect Cable.
  • Page 23 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 follow Is normal the Power Is output the normality Low/High Replace Power...
  • Page 24 4. No Raster (1) Symptom Does’t minute discharge at module. ¯ It maintains the condition where the front LED is green. ¯ (2) Check follow Is normal the Power Is output the normality Low/High Replace Power Board? voltage except Stand-by 5V? Board.
  • Page 25 5. In case of occur strange screen into specific mode 5-1. In case of does’t display the OSD (1) Symptom LED is green ¯ The minute discharge continuously becomes ¯ accomplished from module (2) Check follow Is normal the LVDS Is the LVDS cable Replace cable.
  • Page 26 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 follow Check the all input mode should become normality display. ¯...
  • Page 27 (5) In the case of becomes unusual display from RF, AV, Component 480i mode Is normal the Input voltage, IIC Is normal the Replace IC Communication and HV sync? VPC3230? Is normal the Input voltage, IIC Is normal the S2300? Replace IC Communication and HV sync? Is normal the Input voltage, IIC...
  • Page 28 (7) In the case of becomes unusual display from RGB DTV mode Is normal the Input voltage, IIC Is normal the Replace IC Communication and HV sync? CXA2101? Is normal the Is normal the Input voltage, IIC Replace IC M52758? Communication and HV sync? Is normal the Input voltage, IIC Is normal the Scaler?
  • Page 29 6. In case of no sound (1) Symptom LED is green ¯ Screen display but sound is not output ¯ (2) Check follow Is normal the SPK Is the SPK cable Replace SPK cable cable? connected well? Cable inserts well. Is normal the Is the Flat cable Operates the IC800?

  • Page 30: Block Diagram

    BLOCK DIAGRAM BLOCK DIAGRAM - 30 -...
  • Page 31 - 31 -...

  • Page 32: Exploded View

    EXPLODED VIEW - 32 -...

  • Page 33: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Descriptions 5900V06008B 5900V06008B FAN,DC G6015S12B2-RG DONGYANG 60*60*15 7V 1900RPM 6/12V L=500MM 4980V00D43A 4980V00D43A SUPPORTER, FAN SECC(EGI) MZ-42PM10 NCT 4980V01135A 4980V01135A SUPPORTER FAN SECC(EGI) DN-42PX12X 6401VD0013H 6401VD0013H SPEAKER ASSEMBLY, FULL RANGE(L) RZ-42PX10 6401VD0013G 6401VD0013G SPEAKER ASSEMBLY FULL RANGE(R) RZ-42PX10 6348Q-E042D 6348Q-E062A PDP, 42”...

  • Page 34: Replacement Parts List

    0TR387500AA IC403 0ISTLSG009A M74HC123RM13TR 16P SOP 0TR150400BA CHIP 2SA1504S(ASY) KEC Q209 IC500 0ICTMLG018A LGDP4410 LG IC 176P TQFP TRAY IEP Q210 0TR387500AA CHIP 2SC3875S(ALY) KEC 0IMCRMN023A IC500 SDA6001 QH B12 MICRONAS 128P MQFP Q211 0TR104009AF CHIP KRC104S SOT-23 TP KEC...
  • 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 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 37 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 38 SWITCH L1209 6140VB0004B 26UH 1UEWPHY 22.5TURN YL-9N 0.4 L1213 6140VB0004B 26UH 1UEWPHY 22.5TURN YL-9N 0.4 SW001 140-315A TACT SKHV17910B LG C&D 12V L803 6140VB0024A LPK-1322A SOOJUNG 22UH +-10% SW002 140-315A TACT SKHV17910B LG C&D 12V 6140VB0024A LPK-1322A SOOJUNG 22UH +-10% 140-315A TACT SKHV17910B LG C&D 12V...
  • Page 39 L216 6200JB8010L MLB-201209-1000L-N2 R/TP 1000OHM 350MA ACCESSORIES L217 6200JB8010L MLB-201209-1000L-N2 R/TP 1000OHM 350MA 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP MANUAL,OWNERS 42PX10 LG EN 126R TX L300 3828VA0468A L301 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0468C MANUAL,OWNERS AR/EN/FR 126R TX 026H L302 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 40 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 6710V00126Y REMOTE CONTROLLER, RF043B PIP 6410VBH003C POWER CORD,MP5004(13A)+V1625 BSI 2800MM 6410VCH001C POWER CORD,V3203CA+V1625 CCEE 2800MM 6410VEH003C POWER CORD, M2511A-001 VDE/SEMKO 2800MM 6410VSH001E POWER CORD, BP3110 BIZLINK SAA 2800MM MISCELLANEOUS F801 0FS1002B53K FUSE,SLOW BLOW 10000MA 250 V 5.2X20 P100...
  • Page 46 PRINTED CIRCUIT BOARD MAIN (BOTTOM ) MAIN (TOP) POWER S/W(TOP) POWER S/W(BOTTOM) SIDE A/V(TOP) SIDE A/V(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM) TUNER(TOP) TUNER(BOTTOM)
  • Page 47 Nov., 2004 P/NO : 3828VD0161S Printed in Korea...

This manual is also suitable for:

Rt-42px10/11/hRt-42px12x/hRt-42px20/21/h rRt-50px10/11/hRt-50px20/21/h

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