LG FLATRON L1515SK Service Manual
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LG FLATRON L1515SK Service Manual

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COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : CL-66
MODEL:
(
) **Same model for Service
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
L1515S(K)
(L1515SN-AL**B)
*To apply the Genesis ZAN3SL Chip.
*Same looking with new chassis.
Issue Date; 2004.9.

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  • Page 1 Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-66 MODEL: L1515S(K) (L1515SN-AL**B) ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. *To apply the Genesis ZAN3SL Chip. *Same looking with new chassis. Issue Date;...

  • Page 3: Table Of Contents

    CONTENTS SPECIFICATIONS ........... 2 SERVICE OSD ............11 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......12 TIMING CHART ............7 WIRING DIAGRAM ..........16 BLOCK DIAGRAM ..........8 EXPLODED VIEW...........17 DESCRIPTION OF BLOCK DIAGRAM .....9 REPLACEMENT PARTS LIST .......19 ADJUSTMENT ............10 SCHEMATIC DIAGRAM .........

  • Page 4: Precautions

    PRECAUTION WARNING FOR THE SAFETY-RELATED COMPONENT. WARNING BE CAREFUL ELECTRIC SHOCK ! • There are some special components used in LCD monitor that are important for safety. These parts are • If you want to replace with the new backlight (CCFL) or marked on the schematic diagram and the inverter circuit, must disconnect the AC adapter...
  • Page 5 SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this 9. Use with this receiver only the test fixtures specified in service manual and its supplements and addenda, read this service manual. and follow the SAFETY PRECAUTIONS on page 3 of this CAUTION: Do not connect the test fixture ground strap publication.
  • Page 6 General Soldering Guidelines Replacement 1. Use a grounded-tip, low-wattage soldering iron and 1. Carefully insert the replacement IC in the circuit board. appropriate tip size and shape that will maintain tip 2. Carefully bend each IC lead against the circuit foil pad and solder it.
  • Page 7 Circuit Board Foil Repair At Other Connections Excessive heat applied to the copper foil of any printed Use the following technique to repair the defective copper circuit board will weaken the adhesive that bonds the foil pattern at connections other than IC Pins. This technique to the circuit board causing the foil to separate from or involves the installation of a jumper wire on the "lift-off"...

  • Page 8: Timing Chart

    TIMING CHART VIDEO SYNC Total Video Blanking Sync Back Front Sync Frequency MODE H / V Resolution Period Active Time Duration Porch Porch Polarity Clock ( E ) Time ( A ) ( B ) ( D ) ( F ) ( C ) 25.175 31.468 KHz...

  • Page 9: Block Diagram

    BLOCK DIAGRAM...

  • Page 10: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. Video Controller Part. This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock. The pixel clock for each mode is generated by the PLL. The range of the pixel clock is from 25MHz to 80MHz.

  • Page 11: Adjustment

    ADJUSTMENT Windows EDID V1.0 User Manual 2. EDID Read & Write 1) Run WinEDID.exe Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Don’t need setup Windows 2000, XP => Need to Port Setup. This program is available to LCD Monitor only. 1.

  • Page 12: Service Osd

    SERVICE OSD 1) Turn off the power switch at the front side of the display. 2) Wait for about 5 seconds and press MENU, POWER switch with 1 second interval. 3) The SVC OSD menu contains additional menus that the User OSD menu as described below. a) Auto Color : W/B balance and Automatically sets the gain and offset value.

  • Page 13: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK POWER BOARD, AND FIND CHECK J707 OUT A SHORT POINT VOLTAGE PIN5, PIN6 (5V)? AS OPENING EACH POWER LINE CHECK U801 PIN 1& U803 CHECK U801. PIN 3 VOLTAGE (5V) ? CHECK CHECK 5VR LINE...
  • Page 14 2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS NO RASTER (OSD IS NOT DISPLAYED) J707 CHECK LIPS PIN5, PIN 6 CHECK MICOM INV J707 PIN2 ON/OFF PORT. 2.5V? (U501 PIN9) 1. CONFIRM BRIGHTNESS OSD CONTRL STATE. J707 PIN1 2. CHECK MICOM DIM-ADJ PORT(U501 PIN41) CHECK PULSE AS...
  • Page 15 3. NO RASTER (OSD IS NOT DISPLAYED) – gmZAN3SL NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PINS CHECK U803, U801 3.3V? 1. CHECK PIN88 U201 PIN88 SOLDERING CONDITION OSCILLATE AS 2. CHECK X501 12MHZ? 3. TROUBLE IN U201 U501 PIN43 IS 48KHz H-SYNC? CHECK CONNECTION LINE PIN44 IS 60Hz V-SYNC?
  • Page 16 4. NO RASTER (OSD IS DISPLAYED) – gmZAN3SL NO RASTER (OSD IS DISPLAYED) U201 POWER PIN99(1.8V) CHECK U803, U801 PIN33(3.3V) 1. CHECK PC CHECK R,G,B INPUT? 2. CHECK SIGNAL CABLE U201 PIN 70,74,77 & D-SUB CONNECTOR LINE CHECK CHECK H-SYNC LINE H-SYNC INPUT (D-SUB→U501 →U201 U201 PIN 95?

  • Page 17: Wiring Diagram

    WIRING DIAGRAM Connector Ass’y P/N: 6631T11012R J704 J706 J707 Connector Ass’y P/N: 6631T20024B...

  • Page 19: Exploded View

    Description 3091TKL068R CABINET ASSEMBLY, L1515SL BRAND .. BK PC+ABS, BK SPRAY" 6304FLP156A LCD(LIQUID CRYSTAL DISPLAY), LM150X08-A4NA LG PHILPS TFT COLOR PSWG,LVDS,16MS,SS S D-IC LPL NJ,250NITS 6304FLP146A LCD(LIQUID CRYSTAL DISPLAY), LM150X08-A4K8 LG PHILPS TFT COLOR PSWG,LVDS,16MS,SS S D-IC 3809TKL047H BACK COVER ASSEMBLY, L1515SL .. BK,PC+ABS"...

  • Page 20: Replacement Parts List

    REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE: 2004. 9. 10. DATE: 2004. 9. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 21 DATE: 2004. 9. 10. DATE: 2004. 9. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R541 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/T 0RD4701Q609 4.70K 1/4W(3 5% TA52 R542 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/T...

  • Page 22: Schematic Diagram

    SCHEMATIC DIAGRAM 1. SCALER - 21 -...
  • Page 23 2. MICOM - 22 -...
  • Page 24 3. POWER - 23 -...
  • Page 25 4. CONNECTOR & JACKS - 24 -...
  • Page 26 Blank Page1...
  • Page 27 Blank Page2...
  • Page 28 Sep. 2004 P/NO : 3828TSL097T Printed in Korea...

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