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LG RT-42PX11 Service Manual

Chassis : rf-043b
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PLASMA TV
SERVICE MANUAL
CHASSIS : RF-043B
MODEL : RT-42PX11
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-42PX11

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : RF-043B MODEL : RT-42PX11 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 ..............15 TROUBLE SHOOTING GUIDE ................20 BLOCK DIAGRAM .....................31 EXPLODED VIEW ....................34 EXPLODED VIEW PARTS LIST ................35 REPLACEMENT PARTS LIST................36 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 RS-232C INPUT DVI INPUT AUDIO 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 INPUT AUDIO 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

    Aspect Ratio 16:9 PDP Module PDP42V6xxxx,RGB Closed Type Screen Filter 45% Total light transmittance (E- Mesh) Maker : NBK / Mitsui / LG Chemical Operating Environment 1) Temp : 0~40 deg 2) Humidity : 0~85% LGE SPEC Storage Environment 1) Temp : -20~60 deg...
  • Page 14 2. Model Specification (1) RZ-42PX10 Item Remark Specification Market Broadcasting PAL B/G/I/D/K, SECAM L/L Receiving system Upper Heterodyne Scart Jack ( 3EA ) PAL, SECAM Video Input(2EA) 4 System : PAL, SECAM, NTSC PAL B/G/I/D/K, SECAM L, NTSC4.43,PAL60 S-Video Input(2EA) PAL, SECAM, NTSC 4 System : PAL B/G/I/D/K, SECAM L, NTSC4.43,PAL60...

  • Page 15: 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 16 4-2. KEY Generation (Fig. 3) 4. HDCP Download 4-1. LGIDS Setting Method (1) Click on ‘setup’ to install in your directory. (Fig. 5) (2) After installation is completed, check if the file shown on (Fig. 4) has been created. (1) Click on ‘Key Generation (G)’. (3) Copy the KEY from source CD into the HDCP directory (2) Input the number of the key in Generation count.
  • Page 17 (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 18 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 19 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 20: 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 21 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 21 -...
  • Page 22 1-3. Sanken Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 22 -...
  • Page 23 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 24 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 25 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 26 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 27 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 28 (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 29 (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 30 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 31: Block Diagram

    BLOCK DIAGRAM BLOCK DIAGRAM - 31 -...
  • Page 32 - 32 -...
  • Page 33 MEMO - 33 -...

  • Page 34: Exploded View

    EXPLODED VIEW - 34 -...

  • Page 35: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Description 6401VD0013H SPEAKER ASSEMBLY, FULL RANGE(L) RZ-42PX10 6401VD0013G SPEAKER ASSEMBLY, FULL RANGE(R) RZ-42PX10 6348Q-E061Z PDP, 42” 16:9 852*480 PDP42V60011.AKLGG 6871QCH046B PWB(PCB) ASSEMBLY,DISPLAY CTRL ASSY HAND INSERT 42V6A ASIC 4023 100PIN FPGA 6871QDH066A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V6 YDRV TOP HAND INSERT ASSY 6871QDH067A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V6 YDRV BTM HAND INSERT ASSY 6871QLH034A...

  • Page 36: Replacement Parts List

    0TR387500AA CHIP 2SC3875S(ALY) KEC 0IMCRTI003A IC402 SN74HCT08D 16P R/TP QUADRUPLE CHIP 2SC3875S(ALY) KEC Q219 0TR387500AA IC500 0ICTMLG018A LGDP4410 LG IC 176P TQFP Q300 0TR387500AA CHIP 2SC3875S(ALY) KEC IC500 0IMCRMN023A SDA6001 QH B12 MICRONAS 128P MQFP Q301 0TR387500AA CHIP 2SC3875S(ALY) KEC...
  • 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 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 39 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 40 6210VC0006A 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1313 SWITCH L1314 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SW001 140-315A TACT SKHV17910B LG C&D 12V L1315 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SW002 140-315A TACT SKHV17910B LG C&D 12V L1316 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 41 L300 6210VC0006A ACCESSORIES L301 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L302 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0468A MANUAL,OWNERS LG EN 126R TX L303 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6710V00126R REMOTE CONTROLLER,PIP RZ-42PY20 40 . FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L304 6210VC0006A 6410VSH001E...
  • Page 47 PRINTED CIRCUIT BOARD MAIN (BOTTOM ) MAIN (TOP) POWER S/W(TOP) POWER S/W(BOTTOM) SIDE A/V(TOP) SIDE A/V(BOTTOM) TUNER(TOP) TUNER(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM)
  • Page 48 Sep., 2004 P/NO : 3828VD0161Z Printed in Korea...

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