Related Manuals for LG 15LC1RB-MG
Summary of Contents for LG 15LC1RB-MG
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Page 1: Service Manual
LCD TV SERVICE MANUAL CHASSIS : CL-81 MODEL : 15LC1RB-MG / 20LC1RB-MG CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. -
Page 2: Table Of Contents
CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 DISASSEMBLY ..................6 SPECIFICATION ..................7 ADJUSTMENT INSTRUCTION ...............10 ISP MANUAL ...................13 SVC REMOCON ..................17 TROUBLE SHOOTING ................18 BLOCK DIAGRAM...................22 WIRING DIAGRAM ..................24 EXPLODED VIEW .................. 25 REPLACEMENT PARTS LIST ............... 27 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 prevent potential shock reasons prior to applying power to the manual and its supplements and addenda, read and follow the unit under test. SAFETY PRECAUTIONS on page 3 of this publication. 2. - Page 5 IC Remove/Replacement 3. Solder the connections. Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced which the IC leads are inserted and then bent flat against the component and adjacent components and the circuit board to prevent excessive component temperatures.
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Page 6: Disassembly
DISASSEMBLY #2 Detached stand assy (Remove the screws) #3 Disassembly stand assy #4 Detached Backcover (Remove the screw) #5 Open the Backcover's latch with jig #6 Unlock latch between Cabinet and Backcover - 6 -... -
Page 7: Specification
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to CL-81 chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature: 25°C ±... - Page 8 5. Reference table-Function Item Specification Remark Teletext TOP, FLOF REMOCON NEC Code NTSC AV Input Rear S-Video Input Rear Component Input Rear PERI TV Connector Full SCART : 0 Ear-phone output Rear 2 Carrier Stereo NICAM Stereo 2 Carrier Daul NICAM Daul DW(Double Window) Mode MW(Multi Window) Mode...
- Page 9 6-2. 20LC1R Item Specification Remark Viewing Angle R/L, 85/85 88/88 <CR 10> 85/85 88/88 Luminance Luminance(cd/m EZ Video : Clear ACC : Normal Variation Contrast Ratio All White/All Black CIE Color Coordinates WHITE 0.283 0.313 0.343 In AV Input (Warm) 0.299 0.329 0.359...
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Page 10: Adjustment Instruction
ADJUSTMENT INSTRUCTION 1. Application 3.3.1.2 Confirmation We confirm whether "0x00" address of EEPROM "0xA0" This document is applied to 15", 20" LCD TV which is is "0xAA" or not. manufactured in Monitor Factory or is produced on the basis If "0x00" address of EEPROM "0xA0" isn't "0xAA", we of this data. - Page 11 3.4 Function Check 4. Total Assembly line process 3.4.1 Check display and sound "IIC_ SW" must set "1" 4.1 Adjustment Preparation Check Input and Signal items. (cf. work instructions) "IIC_ SW" must set "0" 1. TV Above 30 minutes H/run in RF no signal 2.
- Page 12 5. Outgoing Condition ITEM Outgoing Condigion Remarks Outgoing Input Source Condition Volume Level Power S/W Channel EZ scan To Start Manual Program Erase Fine Ficture EZ Video Clear Normal-Only USA Sound Balance Timer Clock Auto Off Timer --:-- On Timer --:-- TV 2 Volume 30...
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Page 13: Isp Manual
ISP Manual 1. Connect between PC for ISP and Parallel port Jig though parallel port and USB cable. Parallel port Jig and Down-Load JIG though D-sub port. D-Sub Cable Supply AC220 V. Parallel port (Directly connection) Parallel port JIG 2. After set on Main board on pull the Lever at right, turn on ISP Down-Load JIG.(Push the MAIN POWER ON/OFF.) Lever MAIN Power ON/OFF LOC ISP Mode. - Page 14 # If you can’t use service remocon or enter ISP mode, please follow the method. (The method uses manual WISP program) 1. Change from WISP Automatic mode on to manual mode and then push Enter ISP Mode. 2. As soon as turn on AC power, push Send quickly and again. Check the following message in ISP status. *If ISP status is not ready, try again from AC power on.
- Page 15 4. After Erase Flash, Push Write Flash. Then select hex file after push Browse. Check file loading. Push Send and wait for writing flash. (Take turns (5)~(7) ) Check all OK! filename.hex 5. Push Verify Flash and Send.(Take turns (8)~(9).) Finally, Turn off and on Main AC Power and wait for ending LED blinking. SEDNA ISP Mode.
- Page 16 3. Push "Select Intel HEX File" and select hex file.(1) 4. Push "Erase" => "Program" => "Verify" => "Restart System" after loading file. (Take turns (2)~(5) ). 5. Check whether each stage (2)~(5) is successful in message box. 6. After finishing ISP, turn OFF Main Power AC switch and then turn ON the switch. - 16 -...
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Page 17: Svc Remocon
SVC REMOCON FUNTION REMARK POWER To turn the TV on or off MUTE To activate the mute function. P-CHECK To check TV screen image easily. Shortcut keys S-CHECK To check TV screen sound easily Shortcut keys ARC(23inch) To select size of the main screen Shortcut keys (Auto, 4:3, 16:9, 14:3, Zoom, Cinema Zoom) CAPTION... -
Page 18: Troubleshooting
TROUBLESHOOTING No power :[A]Process (LED indicator off) Check short of main B/D Check 15V or 5V or Change Lips Fail of Lips Pass Check Output of Change Q402 Fail Q402 Pass Check Output of Change U406 U406 Fail Pass Change LED Assy Check LED Assy Fail Pass... - Page 19 :[B]Process No Raster Check LED Status Repeat [A] PROCESS on display unit Fail Pass Check Change U401~U405, U401~U405, U407, U409 U407, U409 Fail Pass Check the input/ Change U301 Output of U301 Fail Pass Check inverter Change inverter Connector or inverter connector or inverter Fail Pass...
- Page 20 No Raster on AV Signal No Raster on TV(RF) signal (Component, CVBS, S-VHS) Check 5V, 33V of TU701 Repeat Check the output of Re-soldering or [A] Process Fail TU701 Fail Change the defect part Pass Check the signal of Change Q113, Q114, Q113, Q114, Q115 Q115, R194, R198, R184 Fail...
- Page 21 No Sound Check the Change source input input source Fail Pass Re-soldering or Check the input/output Change the defect part of U301 Fail Check X301 Pass Re-soldering or Check the input/output Change the defect part of U201 Fail Pass Check the speaker Change speaker Fail Pass...
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Page 22: Block Diagram
BLOCK DIAGRAM - 22 -... - Page 23 BLOCK DIAGRAM DESCRIPTION Power Supply Block (LIPS) LVDS Rx (DTC34LF86L) This Block Generates DC Voltage (5V,15V) to Main It is composed of DTC34LF86L/THC63LVDF84B. Control system from AC Power (100-240 V, 50/60 Hz, The LVDS Rx converts the LVDS data streams back 1.0A) into 24bits of CMOS/TTL data with Also it has the inverter function that converts input...
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Page 24: Wiring Diagram
WIRING DIAGRAM 6631T20010F-3P(15LC1RB) 6631T20037Q-3P(20LC1RB) INTERFACE BOARD Only 20LC1R*_LPL Module 6631900037B-50P(20LC1RB) 6631900037A-50P(20LC1RB, LPL) 6631T20012R-20P(15LC1RB) 6631T20042B-11P(15LC1RB) 6631T20034M-11P(20LC1RB) 6631900026A-4P(20LC1RB) 6631900026B-4P(15LC1RB) 6631900026A-4P(20LC1RB) 6631T20029S-5P 663190002B-4P(15LC1RB) 6631900024D-3P - 24 -... -
Page 25: Exploded View
EXPLODED VIEW - 25 -... -
Page 26: Exploded View Parts List
CABINET ASSEMBLY, 15LC1RB-MG BRAND . NORTH AMERICA(BK, SET) 30919B0002J CABINET ASSEMBLY, 15LC1RB-MG BRAND . NORTH AMERICA-SKD 6304FLP188A LCD(LIQUID CRYSTAL DISPLAY), LC201V02-A3KA LG PHILPS TFT COLOR PB FREE MODULE , SS D-IC 6304FLP234A LCD(LIQUID CRYSTAL DISPLAY), LC150X02-TL01 LG PHILPS TFT COLOR TN LAMP MULTI 3809900002L... -
Page 27: 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 28 DATE: 2006. 02. 01. DATE: 2006. 02. 01. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C415 0CK105DH56A 1UF 2012 25V 10% X7R R/TP C356 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R C416 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
- Page 29 DATE: 2006. 02. 01. DATE: 2006. 02. 01. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C733 0CC330CK41A 33PF 1608 50V 5% R/TP NP0-20LC1RB ZD115 0DZ560009DA UDZ S 5.6B TP ROHM-K SOD323-15LC1RB C734 0CC220CK41A 22PF 1608 50V 5% R/TP NP0-20LC1RB...
- Page 30 DATE: 2006. 02. 01. DATE: 2006. 02. 01. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION L323 6200J00005E HH-1M2012-601JT CERATEC R/T RA705 0RHZTCZ001D RCA SMART 22OHM 1/16 W 5% 3-20LC1RB L325 6200J00005E HH-1M2012-601JT CERATEC R/T...
- Page 31 DATE: 2006. 02. 01. DATE: 2006. 02. 01. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R169 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D-15LC1RB R349 0RH0102D622 10 OHM 1 / 10 W 2012 5.00% R170 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D-15LC1RB...
- Page 32 DATE: 2006. 02. 01. DATE: 2006. 02. 01. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1075 0RH4701D622 4.7K OHM 1 / 10 W 2012 5.00-15LC1RB R399 0RJ0332D677 33 OHM 1/10 W 5% 1608 R/TP R1076 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP...
- Page 33 DATE: 2006. 02. 01. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION ZD502 0DZ560009DA UDZ S 5.6B TP ROHM-K SOD323 ZD503 0DZ560009DA UDZ S 5.6B TP ROHM-K SOD323 ZD504 0DZ560009DA UDZ S 5.6B TP ROHM-K SOD323 ZD505 0DZ560009DA UDZ S 5.6B TP ROHM-K SOD323 3508V00069A "PLATE (CF-29H40,LED)"...
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- Page 39 Jan., 2006 P/NO : 38289S0043T Printed in Korea...