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LG Flatron L1510B Service Manual
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LG Flatron L1510B Service Manual

LG Flatron L1510B Service Manual

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COLOR MONITOR

SERVICE MANUAL

CHASSIS NO. : CL-32
MODEL:
(
) **Same model for SVC
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
L1510B
(L1510BL-AL**R)

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Summary of Contents for LG Flatron L1510B

  • Page 1: Color Monitor

    Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-32 MODEL: L1510B (L1510BL-AL**R) ) **Same model for SVC CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............11 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......12 TIMING CHART ............4 PRINTED CIRCUIT BOARD........16 OPERATING INSTRUCTIONS ........ 5 EXPLODED VIEW...........18 WIRING DIAGRAM ..........8 REPLACEMENT PARTS LIST .......21 BLOCK DIAGRAM ........... 9 PIN CONFIGURATION..........24 DESCRIPTION OF BLOCK DIAGRAM ....

  • Page 3: 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 4: 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 5: Operating Instructions

    OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW See front control panel Power Connector D-Sub Signal Connector Front Control Panel 1. Power Button 3. Menu Button Use this button to turn the display on or off. Use this button to enter or exit the On Screen <Power (DPMS) Indicator>...

  • Page 6: Positioning Your Display

    6. Control Lock(Menu button, button) Press the hold the MENU button and button for You can unlock the OSD controls at any time by 3 seconds: the message “CONTROLS LOCKED” pushing the MENU, button for 3 seconds: appears. the message “CONTROLS UNLOCKED” will appear.

  • Page 7: Usb Connection

    Making use of USB (Universal Serial Bus)* USB (Universal Serial Bus) is an innovation in connecting your different desktop peripherals conveniently to your computer. By using the USB, you will be able to connect your mouse, keyboard, and other to your monitor instead of having to connect them to your computer.

  • Page 8: Wiring Diagram

    WIRING DIAGRAM Connector Ass’y : P/N: 6631T11016C Connector Ass’y : P/N: 6631T20022G J704 J706 J705 - 8 -...

  • Page 9: Block Diagram

    BLOCK DIAGRAM - 9 -...

  • Page 10: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. Video Controller Part & Display Data Transmitter Part.(MST9011) 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.

  • Page 11: Adjustment

    ADJUSTMENT All adjustment are thoroughly checked and corrected 2. Adjustment for White Balance when the monitor leaves the factory, but sometimes 1) Display color 0,0 pattern at Mode 13. several minor adjustment may be required. 2) Set External Bright to MAX position and Contrast to Adjustment should be following procedure and after MAX Position.

  • Page 12: 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, CHECK U801. U803 PIN 3 VOLTAGE (5V) ? CHECK CHECK 5VS LINE...
  • Page 13 2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS NO RASTER (OSD IS NOT DISPLAYED) J705 PIN5, PIN 6 CHECK LIPS CHECK MICOM INV J705 PIN2 ON/OFF PORT. (U501 PIN25) 1. CONFIRM BRIGHTNESS OSD CONTRL STATE. J705 PIN1 2. CHECK MICOM DIM-ADJ PORT(U501 PIN41) CHECK PULSE AS...
  • Page 14 3. NO RASTER (OSD IS NOT DISPLAYED) – MST9011 NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PINS CHECK U803, U801 3.3V? 1. CHECK PIN122, 123 U201 SOLDERING CONDITION PIN122, 123 OSCILLATE AS 2. CHECK X501 12MHZ? 3. TROUBLE IN U201 U501 PIN41 IS 48KHz H-SYNC? CHECK CONNECTION LINE...
  • Page 15 4. NO RASTER (OSD IS DISPLAYED) – MST9011 NO RASTER (OSD IS DISPLAYED) U201 POWER PIN114(3.3V) CHECK U803, U801 PIN111(2.5V) 1. CHECK PC CHECK 2. CHECK SIGNAL CABLE R,G,B INPUT? U201 PIN 33,30,28 & D-SUB CONNECTOR LINE CHECK CHECK H-SYNC LINE H-SYNC INPUT (D-SUB→U501 →U201 U201 PIN 126?

  • Page 16: Printed Circuit Board

    PRINTED CIRCUIT BOARD 1. MAIN BOARD (Component Side) R524 R724 R707 R523 R723 C707 R726 R727 R540 R551 R703 R701 R706 R722 C505 ZD701 D702 D701 R528 C703 R725 R529 R716 R531 R520 R525 C714 R530 C712 C201 R580 C203 C202 R570 R571...
  • Page 17 C224 C214 C213 3.CONTROL LED1 MODEL:L1510SL P/N:6870T628C10 DATA:2003.01.22 - 17 -...
  • Page 18 4.POWER 5.POWER - 18 -...
  • Page 19 - 19 -...

  • Page 20: Exploded View Parts List

    Ref. No. Part No. CABINET ASSEMBLY, L1510BL BRAND L038 . 3091TKL067H LCD(LIQUID CRYSTAL DISPLAY), LM150X06-A3M1 LG PHILPS TFT COLOR 15.0 INCH XGA LVDS SMM 6304FLP025A LCD(LIQUID CRYSTAL DISPLAY), LM150X06-A4C3 LG PHILPS TFT COLOR LPL or 6304FLP068A BACK COVER ASSEMBLY, L1510SL 3808TKL029 .

  • Page 21: 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: 2003. 5. 9. DATE: 2003. 5. 9. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 22 DATE: 2003. 5. 9. DATE: 2003. 5. 9. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION RESISTORs R745 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP R747 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP R201 0RJ1500D677 150 OHM 1/10 W 5% 1608 R/TP...
  • Page 23 DATE: 2003. 5. 9. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0CH8107F611 100UF 16V M 85STD(CYL) R/TP 0CC470CK41A 47PF 1608 50V 5% R/TP NP0 0CC470CK41A 47PF 1608 50V 5% R/TP NP0 0DS181009AA KDS181 TP KEC SOT-23 80V 3 6210TCE001P HB-1S2012-121JT CERATECH 201 6210TCE001P...

  • Page 24: Pin Configuration

    PIN CONFIGURATION CAT24WC02J-TE13 8P BLOCK DIAGRAM DIP Package(p) SOIX Package(J) EXTERNAL LOAD V CC V CC SENSE AMPS D OUT SHIFT REGISTERS V SS V SS V CC COLUMN V SS WORD ADDRESS DECODERS BUFFERS TSSOP Package(U) START/STOP LOGIC V CC E PROM XDEC V SS...
  • Page 25 MST9011 ANALOG MSTAR 128P VSYNC1 AVSS_PLL TESTPIN Pin 1 AVSS AVDD GNDP VDDP AVSS AVDD REXT AVDD_PLL AVSS_PLL AVDD VDDC AVSS GNDC BIN1 GNDP BIN1M VDDP SOGIN1 LVA0M GIN1 LVA0P GIN1M LVA1M RIN1 LVA1P RIN1M LVA2M BIN0M LVA2P BIN0 LVACKM GIN0M LVACKP GIN0...

  • Page 26: Schematic Diagram

    SCHEMATIC DIAGRAM 1. SCALER - 26 -...
  • Page 27 2. MICOM - 27 -...
  • Page 28 3. POWER - 28 -...
  • Page 29 4. CONNECTOR & JACKS - 29 -...
  • Page 30 5. KEY PART - 30 -...
  • Page 31 May. 2003 P/NO : 3828TSL083Y Printed in Korea...

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