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LG 15LS1R Service Manual

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LCD TV

SERVICE MANUAL

CHASSIS : LP68A
FACTORY MODEL : 15LS1R-ZK
MODEL : 15LS1R
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
e-mail:http://www.LGEservice.com/techsup.html
R
website:http://biz.LGservice.com

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Summary of Contents for LG 15LS1R

  • Page 1: Service Manual

    LCD TV SERVICE MANUAL CHASSIS : LP68A FACTORY MODEL : 15LS1R-ZK MODEL : 15LS1R CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SERVICING PRECAUTIONS..............4 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 SERVICE REMOTE CONTROL...............13 TROUBLE SHOOTING ................14 BLOCK DIAGRAM...................18 EXPLODED VIEW .................. 20 REPLACEMENT PARTS LIST ............... 22 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 circuit foil.

  • Page 6: Specification

    NOTE : Specifications and others are subject to change without notice for improvement. 1. General Specification Item Content Remark User Model Name 15LS1R-ZK : PAL/SECAM (EU) Feature 15" LCD TV Chassis Name LP 68A General Scope External SW &Adj. PR(...
  • Page 7 3. Engineering Specification ITEM Specification Remark ENERGY SYNC(V/H) VIDEO POWER CONSUMPTION LED COLOR ≤ 40W Normal On/On Active Green ≤ 1W(110V) Sleep Mode Off/Off ≤ 1W(220V) Cut-off Switch off D-SUB 1 : RED 2 : Green 10 : Digital GND Pin configuration 3 : Blue 4 : ID2 (GND)
  • Page 8 5. Outgoing Condition Item Condition Remark Power Volume Level Main Picture Input Main Last Channel Pr 01 Mute STATION Auto Programme Manual Programme Programme Edit Favourite Programme None PICTURE Dynamic Cool Reset SOUND Flat Balance TIME Time -- : -- Off time -- : -- Off On time...

  • Page 9: Adjustment Instruction

    ADJUSTMENT INSTRUCTION 1. Application Range 5) Click “Auto” tab and set as below, and then click “Run”. 6) After downloading, check “OK” message. These documents is applied to 15" LCD TV(chassis : LP68A) 2. Designation 1) The adjustment is according to the order which is (6) ..
  • Page 10 3.3. Function Check 4.6. DDC EDID : Check Input and Signal items (cf. work instruction) (1) Connect D-sub Signal Cable to D-Sub Connector. (1) TV (2) Write EDID data to EEPROM(24C02) by using DDC2B (2) AV1 (SCART) protocol. (3) AV2 (CVBS/ S-Video) (3) Check whether written EDID data is correct or not.
  • Page 11 5.2. EEPROM DATA READ Item Condition Remark (1) Signal Table Option 5 2HR-OFF 0 : 2 Hour off option - OFF ST OP ST ART A DH A DL 1 : 2 Hour off option - ON Delay 100ms ST ART ST OP TV-LINK-TUNER 128 Bytes...
  • Page 12 6. Signal Timing(Resolution) SOUND PIF[MHz] SYSTEM VIDEO NAME System Mode PR 0 45.25 PAL-BG PHILIPS MONO C 01 LGE Gumi PR 1 575.25 SECAM-DK DIGITAL DUAL C 34 PR 2 175.25 PAL-BG PHILIPS STEREO FLOF C 05 PR 3 231.25 PAL-I FUBK MONO...

  • Page 13: Service Remote Control

    SERVICE REMOTE CONTROL FUNCTION 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 14: Troubleshooting

    TROUBLESHOOTING No power :[A]Process (LED indicator off) Check short of main B/D Check 15V or 5V or Change Lips. of Lips. Fail Pass Check Output of Change Q904. Q904. Fail Pass Check Output of Change IC903. IC903. Fail Pass Check LED Assy. Change LED Assy.
  • Page 15 :[B]Process No Raster Check LED Status Repeat [A] PROCESS. on display unit. Fail Pass Check Change IC900, IC901, IC906, IC900, IC901, IC906, IC908, IC908, IC909, IC910. Fail IC909, IC910. Pass Check the input/ Change IC100. Output of IC100. Fail Pass Check inverter Change inverter connector or connector or inverter.
  • Page 16 No Raster on AV Signal No Raster on TV(RF) signal (Component, CVBS, S-VHS) Check 5V of TU500. Repeat Check the output Re-solder or change the [A] Process . of TU500. Fail Fail defect part. Pass Check the signal of Change R104, R106, R108, R104, R106, R108, R131 R131, L822, L800, L801.
  • Page 17 No Sound Check the Change source input. input source. Fail Pass Re-solder or Change the Check the input/output defect part. Fail of IC100 Check X301. Pass Re-solder or change the Check the input/output defect part. of IC400 Fail Pass Check the speaker Change the speaker Fail Pass...

  • Page 18: Block Diagram

    BLOCK DIAGRAM RS-232C (Option) - 18 -...
  • Page 19 BLOCK DIAGRAM DESCRIPTION Power Supply Block (LIPS) This Block Generates DC Voltage (5V,15V) to Main Control system from AC Power (100-240 V, 50/60 Hz, 1.0A) Also it has the inverter function that converts input voltage to AC Rms value for the LCD lamp. Voltage Regulator Voltage regulator convert the input 5V,15V to proper 1.8V, 3.3V, 5V, 12V for Main control system.

  • Page 20: Exploded View

    EXPLODED VIEW - 20 -...

  • Page 21: Exploded View Parts List

    Frame Assembly 15_20LS1 CL-81 15” 15LS1R BB3 PAL_SECAM ,CPT,CSKD OF 14 AAN30646901 Base Assembly STAND 15LS1R CL81 BASE AAN30646905 Base Assembly STAND 15LS1R CL81 15LS1R COVER BASE ASSY , BK , MA_LOCAL AAN31022501 Base Assembly STAND 15LS1R CL81 15LS1R STAND BODY ASSY AAN31022503...

  • Page 22: Replacement Parts List

    REPLACEMENT PARTS LIST DATE: 2007. 01. 24. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION CAPACITORs C152 0CK104CK56A 0603B104K500CT 100nF 10% 50V X7R -55TO C154 0CK105CD56A C1608X7R1A105KT 1uF 10% 10V X7R -55TO+ C100 0CK104CK56A 0603B104K500CT 100nF 10% 50V X7R -55TO C155 0CK224DK56A...
  • Page 23 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C3000 0CK104CK56A 0603B104K500CT 100nF 10% 50V X7R -55TO C706 0CK104CK56A 0603B104K500CT 100nF 10% 50V X7R -55TO C3001 0CC470CK41A C1608C0G1H470JT 47pF 5% 50V C0G -55TO+ C710 0CC331CK41A C1608C0G1H331JT 330pF 5% 50V C0G -55TO C301 0CK104CK56A...
  • Page 24 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C915 0CK104CK56A 0603B104K500CT 100nF 10% 50V X7R -55TO ZD803 0DZ560009DA UDZS5.6B 5.6V 5.49TO5.73V 60OHM 200MW C916 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% 16V 80MA -4 ZD804 0DZ560009DA UDZS5.6B 5.6V 5.49TO5.73V 60OHM 200MW C918 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% 16V 80MA -4...
  • Page 25 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION RESISTORs R128 0RJ0472D677 MCR03EZPJ470 47OHM 5% 1/10W 1608 R/TP R129 0RJ0472D677 MCR03EZPJ470 47OHM 5% 1/10W 1608 R/TP R1004 0RJ0000D677 MCR03EZPJ000 0OHM 5% 1/10W 1608 R/TP R131 0RJ0472D677 MCR03EZPJ470 47OHM 5% 1/10W 1608 R/TP R1008...
  • Page 26 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R258 0RJ0222D677 MCR03EZPJ220 22OHM 5% 1/10W 1608 R/TP R512 0RJ1500D677 MCR03EZPJ151 150OHM 5% 1/10W 1608 R/TP R259 0RJ0222D677 MCR03EZPJ220 22OHM 5% 1/10W 1608 R/TP R513 0RJ1002D677 MCR03EZPJ103 10KOHM 5% 1/10W 1608 R/TP R260 0RJ0222D677...
  • Page 27 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R800 0RJ0752D677 MCR03EZPJ750 75OHM 5% 1/10W 1608 R/TP L107 6210TCE001G Filter,Bead HH-1M3216-501JT 500OHM R801 0RJ0752D677 MCR03EZPJ750 75OHM 5% 1/10W 1608 R/TP L109 6210TCE001G Filter,Bead HH-1M3216-501JT 500OHM R802 0RJ0000D677 MCR03EZPJ000 0OHM 5% 1/10W 1608 R/TP...
  • Page 28 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION P901 6602T20008K SMW200-11P 11P 2.00MM 1R STRAIGHT DIP 6631900024D SMH200 SMH200 250mM 2.00MM 3P UL1061 A 6631900026A SPK CONN(600/300MM) SMH200 35098-9702 6631900042B SMH200 SMH200 150mM 2.00MM 11P UL1061 6631T20033X SMH200-05P SMH200-05P 550mM 2.00MM 5P JACKs...
  • Page 31 Nov., 2006 P/NO : MFL37159902 Printed in Korea...

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