LG RT-42PX112X Service Manual
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LG RT-42PX112X Service Manual

LG RT-42PX112X Service Manual

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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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  • 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 : RF-043B MODEL : RT-42PX12X/XH 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 .................... 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 ..................

  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com - 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.
  • Page 6 All manuals and user guides at all-guides.com <Back Panel> AC INPUT Antenna COMPONENT MONITOR OUTPUT INPUT 2 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.
  • Page 7 All manuals and user guides at all-guides.com 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 MONITOR Antenna...
  • Page 8 All manuals and user guides at all-guides.com 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 <...
  • Page 9 All manuals and user guides at all-guides.com 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.
  • Page 10 All manuals and user guides at all-guides.com 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;...
  • Page 11 All manuals and user guides at all-guides.com 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...
  • Page 12 All manuals and user guides at all-guides.com 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 2-TV bracket bolts Owner’s Manual Alkaline batteries Remote Control handset 2-TV brackets...

  • Page 13: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS MODEL RT-42PX10/11/H RT-42PX12X/H RT-42PX20/21/H RT-42PX20/H Width (inches / mm) 48.4 / 1210 Height (inches / mm) 27.6 / 701 Depth (inches / mm) 3.8 / 96 Weight (pounds / kg) 66 / 29.9 Power requirement AC100-240V, 50/60Hz Resolution...

  • Page 14: Adjustment Instructions

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com (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.
  • Page 17 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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

    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 It is identical Is the Interface screen whole come with Power Off signal operated? out? condition?
  • Page 20 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 - 20 -...
  • Page 21 All manuals and user guides at all-guides.com 1-3. Sanken Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 21 -...
  • Page 22 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 follow Is plug in power cord? Plug in power cord. Is connect the Line Filter and Power Connect Cable.
  • Page 23 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 24 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 follow Is normal the Power Is output the normality Low/High Replace Power Board? voltage except Stand-by 5V?
  • Page 25 All manuals and user guides at all-guides.com 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...
  • Page 26 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 follow Check the all input mode should become normality display.
  • Page 27 All manuals and user guides at all-guides.com (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 VPC3230? Communication and HV sync? Is normal the Input voltage, IIC Is normal the S2300? Replace IC Communication and HV sync?
  • Page 28 All manuals and user guides at all-guides.com (7) In the case of becomes unusual display from RGB DTV mode Is normal the Is normal the Input voltage, IIC Replace IC Communication and HV sync? CXA2101? Is normal the Is normal the Input voltage, IIC Replace IC M52758? Communication and HV sync?
  • Page 29 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 follow Is normal the SPK Is the SPK cable Replace SPK cable cable? connected well? Cable inserts well.

  • Page 30: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM BLOCK DIAGRAM - 30 -...
  • Page 31 All manuals and user guides at all-guides.com - 31 -...

  • Page 32: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW - 32 -...

  • Page 33: Exploded View Parts List

    All manuals and user guides at all-guides.com 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...

  • Page 34: Replacement Parts List

    CHIP 2SC3875S(ALY) KEC IC403 0ISTLSG009A M74HC123RM13TR 16P SOP Q209 0TR150400BA CHIP 2SA1504S(ASY) KEC IC500 0ICTMLG018A LGDP4410 LG IC 176P TQFP TRAY IEP Q210 0TR387500AA CHIP 2SC3875S(ALY) KEC IC500 0IMCRMN023A SDA6001 QH B12 MICRONAS 128P MQFP Q211 0TR104009AF CHIP KRC104S SOT-23 TP KEC...
  • Page 35 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 36 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 37 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 38 1.0M OHM 1/2 W 5% TA52 6140VB0004B 26UH 1UEWPHY 22.5TURN YL-9N 0.4 L1203 SWITCH 6140VB0004B 26UH 1UEWPHY 22.5TURN YL-9N 0.4 L1209 26UH 1UEWPHY 22.5TURN YL-9N 0.4 TACT SKHV17910B LG C&D 12V L1213 6140VB0004B SW001 140-315A L803 6140VB0024A LPK-1322A SOOJUNG 22UH +-10% SW002 140-315A TACT SKHV17910B LG C&D 12V...
  • Page 39 L216 ACCESSORIES MLB-201209-1000L-N2 R/TP 1000OHM 350MA L217 6200JB8010L L300 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0468A MANUAL,OWNERS 42PX10 LG EN 126R TX 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 3828VA0468D...
  • Page 40 All manuals and user guides at all-guides.com 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...
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  • Page 45 All manuals and user guides at all-guides.com...
  • Page 46 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN (TOP) MAIN (BOTTOM ) POWER S/W(TOP) POWER S/W(BOTTOM) SIDE A/V(BOTTOM) SIDE A/V(TOP) CONTROL(TOP) CONTROL(BOTTOM) TUNER(TOP) TUNER(BOTTOM)
  • Page 47 All manuals and user guides at all-guides.com Nov., 2004 P/NO : 3828VD0161S Printed in Korea...

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