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Service Guide Specification
Service Guide Specification
1.
Model Description
MODEL
L1910SN
ALEUG
SUFFIX
ALUSB
2.
Printing Specification
1. Trim Size (Format) :
2. Printing Colors
• Cover :
LG COLORS
• Inside :
Black
3. Stock (Paper)
• Cover :
Snow White 150 g/
• Inside :
Snow White 100 g/
4. Printing Method :
5. Bindery :
6. Language :
7. Number of pages :
3.
Special Instructions
(1) Origin Notification
* LGEDI : Printed in Indonesia
* LGESP : Printed in Brazil
* LGENT : Printed in China
4.
Changes
8
7
6
5
4
3
2
1
REV.
MM/DD/YY
NO.
BRAND
Product Name
215mm x 280 mm
Saddle stitch
English
28
( Including blank 2pages)
* LGEWA : Printed in U.K.
* LGEMX : Printed in Mexico
* LGEIL : Printed in India
CHANGE NO.
LG
FLATRON L1910S
FLATRON L1910S(K)
CHANGE
Part No.
3828TSL093Q
CONTENTS
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Summary of Contents for LG FLATRON L1910S
- Page 1 Service Guide Specification Service Guide Specification Model Description MODEL L1910SN BRAND Part No. 3828TSL093Q ALEUG FLATRON L1910S SUFFIX Product Name ALUSB FLATRON L1910S(K) Printing Specification 1. Trim Size (Format) : 215mm x 280 mm 2. Printing Colors • Cover : LG COLORS •...
- Page 2 Pagination sheet Pagination sheet Front cover English English English English English Cover Inside …. ….. English English English English English Rear cover Rear Inside Cover …. blank blank...
- Page 3 Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-82 MODEL: L1910S(L1910SN.AL**G) L1910S(K)(L1910SN.AL**B) ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. L1710B *To apply the Genesis ZAN3SL Chip.
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Page 4: Table Of Contents
CONTENTS SPECIFICATIONS ........... 2 SERVICE OSD ............12 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......13 TIMING CHART ............7 WIRING DIAGRAM ..........17 BLOCK DIAGRAM ........... 8 EXPLODED VIEW...........18 DESCRIPTION OF BLOCK DIAGRAM.....9 REPLACEMENT PARTS LIST .......20 ADJUSTMENT ............11 SCHEMATIC DIAGRAM ......... -
Page 5: 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 6: Servicing Precautions
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 7 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 8 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"...
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Page 9: Timing Chart
TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Total Front Back Display Sync. MODE section Polarity Frequency Period Porch Porch Resolution ( A ) ( C ) Clock ( E ) ( D ) -
Page 10: Block Diagram
BLOCK DIAGRAM - 8 -... -
Page 11: 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 135MHz. -
Page 12: Lips Board Block Diagram
LIPS Board Block Diagram 50 ~ 60Hz 100KHz HVDC INPUT RECTIFIER ENERGY OUTPUT RECTIFIER COMPONENTS AND FILTER TRANSFER AND FILTER LINE 100 ~ 240V SIGNAL PHOTO- COLLENT- COUPLER COMTROL ISOLATI ON CIRCUIT PRIMARY SECONDARY Operation description_LIPS 1. EMI components. This part contains of EMI components to comply with global marketing EMI standards like FCC, VCCI CISPR, the circuit included a line-filter, across line capacitor and of course the primary protection fuse. -
Page 13: 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 14: 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 15: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK POWER BOARD, CHECK J705 AND FIND OUT A SHORT VOLTAGE POINT AS OPENING PIN5, PIN6 (5V)? EACH POWER LINE CHECK CHECK 5V LINE U501 PIN 8 Voltage (OPEN CHECK) (5V) ? NO PROBLEM CHECK KEY CONTROL... - Page 16 2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS NO RASTER (OSD IS NOT DISPLAYED) CHECK POWER BOARD, J705 AND FIND OUT A SHORT PIN5, PIN6 POINT AS OPENING EACH POWER LINE CHECK MICOM INV ON/OFF J705 PIN9 PORT. 2.5V? 1.
- Page 17 3. NO RASTER (OSD IS NOT DISPLAYED) – GMZAN3AL NO RASTER (OSD IS NOT DISPLAYED) U201 CHECK U801 (17", 19") PIN 94, PIN 99 CHECK U803 (15") 3.3V? 1. CHECK PIN 88, 89 U201 PIN88 SOLDERING CONDITION OSCILLATE AS 2. CHECK X501 12MHZ? 3.
- Page 18 4. TROUBLE IN DPM TROUBLE IN DPM CHECK CHECK PC R213, R779 (HYNC) PC IS NOT GOING R214, R775 (VYNC) INTO DPM OFF MODE CHECK U501 PIN 19 CHECK SIGNAL CABLE (ST-DET) ? TROUBLE IN PC Waveforms 6 R214, R775 V-Sync 7 U501 ST-DET #19 R213, R779 H-Sync - 16 -...
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Page 19: Wiring Diagram
WIRING DIAGRAM Connector Ass’y P/N: Connector Ass’y P/N: 6631T20020Q 6631T11012W or 6631T11020W Connector Ass’y P/N: 6631T20024B - 17 -... -
Page 20: Exploded View
EXPLODED VIEW - 18 -... - Page 21 CABINET ASSEMBLY, L1910SM BRAND TKL067 BLACK PC+ABS "Q"-C/SKD-L1910S 3091TKL096W CABINET ASSEMBLY, L1910SM BRAND TKL067 PC+ABS TCO99 "B"-C/SKD-L1910S(K) 6304FLP151A LCD(LIQUID CRYSTAL DISPLAY), LM190E01-C4K3 LG PHILPS TFT COLOR 250NITS,LVDS,4 LAMP,LVDS LOCKING TYPE or 6304FLP134A LCD(LIQUID CRYSTAL DISPLAY), LM190E02-A4 LG PHILPS TFT COLOR SLIM,20T,SXGA,LVDS or 6304FLP075A...
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Page 22: 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: 2005. 02. 04. DATE: 2005. 02. 04. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. - Page 23 DATE: 2005. 02. 04. DATE: 2005. 02. 04. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R537 0RJ3301D677 3.3K OHM 1/10 W 5% 1608 R/TP 140-058E SKHV10910B LGEC NON 12V 20A R541 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP...
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Page 24: Schematic Diagram
SCHEMATIC DIAGRAM 1. ZAN3SL - 22 -... - Page 25 2. MICOM - 23 -...
- Page 26 3.POWER - 24 -...
- Page 27 4. CONNECTOR & JACKS - 25 -...
- Page 28 Blank Page1...
- Page 29 Blank Page2...
- Page 30 Feb. 2005 P/NO : 3828TSL093Q Printed in Korea...
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