Related Manuals for LG 42LP1R-ME
Summary of Contents for LG 42LP1R-ME
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Page 1: Service Manual
LCD TV SERVICE MANUAL CHASSIS : ML-051A MODEL : 42LP1R-ME CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. -
Page 2: Table Of Contents
CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION..............11 TROUBLE SHOOTING ................16 BLOCK DIAGRAM...................19 WIRING DIAGRAM ..................20 EXPLODED VIEW .................. 21 EXPLODED VIEW PARTS LIST ..............22 REPLACEMENT PARTS LIST ............... 23 SVC. SHEET ....................- 2 -... -
Page 3: Product Safety
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in 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 Shock, Fire, or other Hazards. -
Page 4: Servicing Precautions
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or... - Page 5 IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.
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Page 6: Specification
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to ML-051A chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature: 25°C ±... - Page 7 4. General Specification Item Specification Unit Remark Panel 42" TFT WXGA LCD Frequency range H : 31 ~ 61Khz PC Input V : 56 ~ 75Hz Control Function 1) Contrast/Brightness 2) H-Position / V-Position 3) Tracking : Clock / Phase 4) Auto Configure 5) Reset Component Jack...
- Page 8 5.Optical Feature(LCD Module) Item Specification Remark Viewing Angle R/L, U/D 178,178 <CR≥10> Luminance Luminance (cd/m2) Typical Variation MAX / MIN Contrast Ratio All white / All black (All white/All Black) (With Al) 1000 CIE Color Coordinates White 0.285 0.293 0.640 Typ.
- Page 9 8. HDMI INPUT Mode Table Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Analog RGB, Digital RGB 720x400 31.468 70.8 28.321 640x480 31.469 59.94 25.17 VESA 37.684 75.00 31.5 VESA 800x600 37.879 60.31 40.00 VESA 46.875 49.5 VESA 832x624 49.725 74.55 57.283 1024x768 48.363 60.00...
- Page 10 <Table 2> Scart Arrangement 2.(Half Scart) Signal Signal Level Impedance Audio Output B (right) 0.5 Vrms < 1 Audio Input B (right) 0.5 Vrms > 10 Audio Output A (left) 0.5 Vrms < 1 Ground (audio) Ground (blue) Audio input A (left) 0.5 Vrms >...
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Page 11: Adjustment Instruction
This spec. sheet is applied to all of the ML-051A chassis 00 00 FF FF FF FF FF FF 00 1E 6D (TORNADO) manufactured at LG TV Plant 01 03 80 46 27 78 EA D9 B0 A3 57 49 9C 25 20 11 49 4B A5 6E 80 31 40 01 01 01 01 45 40 01 01 2. - Page 12 (Vol. +) key to operate the set, then it 42LP1R-ZE 34324C5031522D5A45 becomes automatically. 42LP1R-TE 34324C5031522D5445 5) Auto-RGB OK means the adjustment is completed. 42LP1R-ME 34324C5031522D4D45 4-2 Adjustment of Component. e. Checksum: ChangeSable by total EDID data * Required Equipments - Remote controller for adjustment 4. ADC Calibration - MSPG-925F Pattern Generator =>...
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Page 13: White Balance
* Target Value [PSM: Standard(ZE/TE), Optimum(ME), 4-3 Adjustment of RGB. CSM: Normal] * Required Equipments -Normal(9300K) - x:283±0.003, y: 298±0.003 - Remote controller for adjustment -Luminance(Y) - AV/COMP: Less then 250 Cd/m - MSPG-925F Pattern Generator (Typ: 300 Cd/m (Which has XGA [1024x768] 75Hz PC Format output with - PC : Less then300 Cd/m 1/2 W,B Horizontal Pattern shown in Fig. - Page 14 6. Shipping Conditions Item Condition Remark Power Volume Level Main Picture Input Main Last Channel Mute Wide Station Auto Program Manual Program Favorite Program None Picture EZ Picture Clear Clear Contrast Brightness Colour Sharpness Tint Activate depend on Color sys. Cool Fleshtone : 1 Greentone : 1...
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Page 15: Svc Remocon
SVC REMOCON To turn the TV on or off POWER To turn the TV on automatically if the power is supplied to the TV. (Use the POWER ON POWER key to deactivate): It should be deactivated when delivered. To activate the mute function. MUTE To check TV screen image easily. -
Page 16: Troubleshooting
TROUBLESHOOTING NO POWER (POWER INDICATOR OFF) CHECK CN804 CHECK POWER BOARD VOLTAGE (P-ST_5V) CHECK CRYCTAL CHECK CRYSTAL X800 X800(19.6608MHZ) CHECK IC806 VOLTAGE (5V) CHECK IC806 CHECK Power on/off CHECK Q1001 (5V) REPLACE POWER BOARD - 16 -... - Page 17 NO VIDEO CHECK THE PERIPHERAL CHECK LVDS Output IC800 P3(PIN 21, PIN 22) CHECK THE PERIPHERAL Check L2 (12V) CHECK L1022 CHECK R898 (24V) (3.3V) REPLACE LCD MODULE DOWN LOAD ISP DATA or REPLACE MAIN BOARD - 17 -...
- Page 18 NO SOUND IS THE SPK CABLE INSERT CABLES WELL CONNECTED WELL? DOES IC302 OPERATE? CHECK IC302 OR CHANGE DOES IC301 OPERATE? CHECK IC301 OR CHANGE CHECK X300 OR CHANGE DOES IC300 OPERATE? CHECK X400 OR CHANGE DOES IC400 OPERATE? REPLACE JACK BOARD - 18 -...
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Page 19: Block Diagram
BLOCK DIAGRAM - 19 -... -
Page 20: Wiring Diagram
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Page 21: Exploded View
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Page 22: Exploded View Parts List
LCD(LIQUID CRYSTAL DISPLAY), LC420W02-B6K1 LG PHILPS TFT COLOR B6+STATUS PIN or 6304FLP286A LCD(LIQUID CRYSTAL DISPLAY), LC420W02-B4K4 LG PHILPS TFT COLOR B4K3 REV. or 6304FLP208A LCD(LIQUID CRYSTAL DISPLAY), LC420W02-B6 LG PHILPS TFT COLOR MINI LVDS, P6 or 6304FLP353A LCD(LIQUID CRYSTAL DISPLAY), LC420W02-B6K2 LG PHILIPS TFT COLOR BDF P6 3809TKE028B... -
Page 23: Replacement Parts List
REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN, CH : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit in the CQ : Polyestor RS : Metal Oxide Film P/No. means as follows; CE : Electrolytic RN : Metal Film CF : Fixed Film RH : CHIP, Metal Glazed(Chip) - Page 24 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1205 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1279 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1209 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
- Page 25 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C364 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C923 0CH3103K516 10000PF 50V 10% B(Y5P) 2012 C365 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
- Page 26 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C831 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C1048 0CE107WF6DC 100UF MVK 16V 20% R/TP(SMD) C832 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
- Page 27 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1285 0CE226WF6DC 22UF MVK 16V 20% R/TP(SMD) IC600 0IPRPS5006A SIL9021CTU(PB FREE) SILICON C1296 0CE226WF6DC 22UF MVK 16V 20% R/TP(SMD) IC802 0ISA721700C LA7217M MFP14 TP SYNC SEPAR...
- Page 28 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION L1022 6210TCE001G HH-1M3216-501 CERATEC 3216M AR606 0RHZTCZ001D RCA SMART 22OHM 1/16 W 5% 3 L1025 6210TCE001G HH-1M3216-501 CERATEC 3216M...
- Page 29 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R459 0RH1503D622 150K OHM 1 / 10 W 2012 5.00 R1809 0RH2701D622 2.7K OHM 1 / 10 W 2012 5.00 R462 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D...
- Page 30 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R751 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% R900 0RH0222D622 22 OHM 1 / 10 W 2012 5.00% R752 0RH0222D622 22 OHM 1 / 10 W 2012 5.00%...
- Page 31 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1211 0RH2200D622 220 OHM 1 / 10 W 2012 5.00% SW1204 6600R00001B JTP1289 JEIL 12V DC 1MA VER R1214 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D...
- Page 32 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C103 0CC270DK41A 27PF 2012 50V 5% NP0 R/TP C401 0CH3103K516 10000PF 50V 10% B(Y5P) 2012 C104 0CC270DK41A 27PF 2012 50V 5% NP0 R/TP...
- Page 33 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION Q401 0TR387500AA CHIP 2SC3875S(ALY) BK KEC - R256 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D Q402 0TR150400BA CHIP 2SA1504S(ASY) BK KEC -...
- Page 34 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R381 0RH1001D622 1K OHM 1 / 10 W 2012 5.00% C113 0CE106VF6DC 10UF MV 16V 20% R/TP(SMD) S R382 0RH1001D622 1K OHM 1 / 10 W 2012 5.00%...
- Page 35 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C417 0CK474DH56A 0.47UF 2012 25V 10% R/TP X7 R1301 0RH1002D622 10K OHM 1 / 10 W 2012 5.00% C418 0CK474DH56A 0.47UF 2012 25V 10% R/TP X7...
- Page 36 DATE: 2005. 11. 10. DATE: 2005. 11. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R685 0RH1000D622 100 OHM 1 / 10 W 2012 5.00% R3108 0RJ2200D677 220 OHM 1/10 W 5% 1608 R/TP R690 0RH1000D622 100 OHM 1 / 10 W 2012 5.00%...
- Page 40 Nov., 2005 P/NO : 38289S0043A Printed in Korea...