Related Manuals for LG RT-42PX20
Summary of Contents for LG RT-42PX20
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Page 1: Service Manual
PLASMA TV SERVICE MANUAL CHASSIS : RF-043B MODEL : RT-42PX20 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 ................18 BLOCK DIAGRAM .....................29 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 RGB INPUT 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 setÕs 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 RGB / DVI mode Horizontal Vertical Resolution Frequency(KHz) Frequency(Hz) 31.468 70.09 640x350 37.861 85.08 31.469 70.08 720x400 37.927 85.03 31.469 59.94 35.000 66.66 640x480 37.861 72.80 37.500 75.00 43.269 85.00 31.500 60.00 848x480 37.799 70.00 39.375 75.00 31.500 60.00 37.799 70.00 852x480 39.375...
- Page 12 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 OwnerÕs Manual Alkaline batteries 2-TV brackets D-sub 15 pin cable Power Cord DVI-D Cable 2-Wall brackets...
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Page 13: Specifications
Display Screen Device 42 inch wide Color Display Module Aspect Ratio 16:9 PDP Module PDP42V6xxxx,RGB Closed Type Maker : NBK / Mitsui / LG Chemical Screen Filter 45% Total light transmittance (E- Mesh) Operating Environment 1) Temp : 0~40 deg LGE SPEC... - Page 14 2. Model Specification (1) RZ-42PX10 Remark Item Specification Market Broadcasting PAL B/G/I/D/K, SECAM L/L Receiving system Upper Heterodyne Scart Jack ( 3EA ) PAL, SECAM 4 System : Video Input(2EA) PAL, SECAM, NTSC PAL B/G/I/D/K, SECAM L, NTSC4.43,PAL60 4 System : S-Video Input(2EA) PAL, SECAM, NTSC PAL B/G/I/D/K, SECAM L, NTSC4.43,PAL60...
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Page 15: Adjustment Instructions
3) After finishing inputs, click the button [OK] to complete the connection setup. The spec sheet is applied all of the 42ÓPDP TV, RF-043B chassis by manufacturing LG TV Plant or sort plants. (2) Confirming the G-prove 1) Connect Rs232 cable and then turn on the power. - Page 16 (1) Test Equipment 3-2. HDCP download : D.M.M 1EA (1) Setting up & Confirming the G-prove (2) Connection Diagram for Measuring : refer to 3-1-(1) and 3-1-(2) : refer to fig5 (2) HDCP download method (3) Adjustment Method 1) Click [Command -> NVRAM Write] 1) Adjustment method of P/No 3501V00180A B/D 2) When the window of [NVRAM Write] is showed, select 1.
- Page 17 1) Select white pattern of heat-run mode by pressing power 4-5. Auto Adjustment Map(RS-232C) on key on remote control for adjustment then operate Type RF-043B_PDP42 heat run more than 15 minute. 2) Supply 2 Gray Pattern (216 Level Full Size Pattern) Baud Rate Data bit Stop bit...
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Page 18: 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 19 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 19 -...
- Page 20 1-3. Sanken Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 20 -...
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Page 21: No Power
2. No Power (1) Symptom DoesÕt 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 22 3. Protect Mode (1) Symptom After once shining, it does not discharge minutely ¯ from module The Rely falls(The sound is audible ÒclickÓ) ¯ 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 23 4. No Raster (1) Symptom DoesÕt 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 24 5. In case of occur strange screen into specific mode 5-1. In case of doesÕt 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 25 5-2. In case of doesÕt 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 26 (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 27 (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 28 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?
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Page 29: Block Diagram
BLOCK DIAGRAM BLOCK DIAGRAM - 29 -... - Page 30 - 30 -...
- Page 31 MEMO - 31 -...
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Page 32: Exploded View
EXPLODED VIEW 401# - 32 -... -
Page 33: Exploded View Parts List
EXPLODED VIEW PARTS LIST Part No. Description 6401VD0013B SPEAKER ASSEMBLY, FULL RANGE(L) . RZ-42PX10 L 6401VD0013A SPEAKER ASSEMBLY, FULL RANGE(R) . RZ-42PX10 R 6348Q-E050C PDP, 42Ó 16:9 852*480 PDP42V60000.AKLGG 6871QCH034A PWB(PCB) ASSEMBLY,DISPLAY CTRL ASSY HAND INSERT 42V6 NEW MCM(1222) LVDS 6871QDH066A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V6 YDRV TOP HAND INSERT ASSY 6871QDH067A... -
Page 34: Replacement Parts List
CHIP KRC104S SOT-23 TP KEC 0IMCRTI003A IC402 SN74HCT08D 16P R/TP QUADRUPLE CHIP 2SC3875S(ALY) KEC Q217 0TR387500AA IC500 0ICTMLG018A LGDT4410 LG IC 176P TQFP Q218 0TR387500AA CHIP 2SC3875S(ALY) KEC IC500 0IMCRMN023A SDA6001 QH B12 128P MQFP Q219 0TR387500AA CHIP 2SC3875S(ALY) 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 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1312 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SWITCH FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1313 6210VC0006A 140-315A TACT SKHV17910B LG C&D 12V 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SW001 L1314 SW002 140-315A TACT SKHV17910B LG C&D 12V L1315 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
- Page 39 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1325 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L501 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1326 6210VC0006A L502 6210VC0006A 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1327 L503...
- Page 45 SIDE A/V(BOTTOM) SIDE A/V(TOP) CONTROL(TOP) UNER(BOTTOM) CONTROL(BOTTOM)
- Page 46 Jun., 2004 P/NO : 3828VD0161E Printed in Korea...