LG Flatron L1720B Service Manual
Color monitor
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Also See for Flatron L1720B:
- Service manual (28 pages) ,
- Service manual (26 pages) ,
- User manual (26 pages)
Table of Contents
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Service Guide Specification
Service Guide Specification
1.
Model Description
MODEL
L1720BM
SUFFIX
ALUSR
2.
Printing Specification
1. Trim Size (Format) :
2. Printing Colors
• Cover :
LG COLORS
• Inside :
Black
3. Stock (Paper)
Snow White 150 g/
• Cover :
Snow White 100 g/
• Inside :
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
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3
2
1
REV.
MM/DD/YY
NO.
BRAND
Product Name
215mm x 280 mm
Saddle stitch
English
29
( Including blank 3page)
* LGEWA : Printed in U.K.
* LGEMX : Printed in Mexico
* LGEIL : Printed in India
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FLATRON L1720B
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Part No.
3828TSL084G
CONTENTS
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Table of Contents
Related Manuals for LG Flatron L1720B
Summary of Contents for LG Flatron L1720B
- Page 1 Model Description MODEL L1720BM BRAND Part No. 3828TSL084G SUFFIX ALUSR Product Name FLATRON L1720B Printing Specification 1. Trim Size (Format) : 215mm x 280 mm 2. Printing Colors • Cover : LG COLORS • Inside : Black 3. Stock (Paper) Snow White 150 g/ •...
- Page 2 D D D D Pagination sheet Pagination sheet English English English English English English English Front cover Cover Inside …. ….. Contents Rear cover English Rear Inside Cover (blank) (blank) (blank)
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Page 3: Color Monitor
Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-61 MODEL: L1720B (L1720BM-AL**R) ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. *Same looking with new chassis. Issue Date; 2004.1... -
Page 4: Table Of Contents
CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............10 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......12 TIMING CHART ............4 EXPLODED VIEW...........16 OPERATING INSTRUCTIONS ........ 5 REPLACEMENT PARTS LIST .......18 WIRING DIAGRAM ..........6 PIN CONFIGURAION..........20 BLOCK DIAGRAM ........... 7 SCHEMATIC DIAGRAM ......... 21 DESCRIPTION OF BLOCK DIAGRAM.....8 SPECIFICATIONS 1. -
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: Timing Chart
TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Total Period Video Active Time Front Porch Sync Duration Back Porch Sync Mode Resolution Frequency Clock Polarity Sort 31.469 640x350 25.175 70Hz... -
Page 7: Operating Instructions
OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW Power Connect D-sub Connect See front control panel 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 8: Wiring Diagram
WIRING DIAGRAM Connector Ass’y : P/N: 6631T11016C J702 Connector Ass’y : P/N: 6631T20023A J707 Connector Ass’y : P/N: 6631T20024C Connector Ass’y : P/N: 6631T20008G - 6 -... -
Page 9: Block Diagram
BLOCK DIAGRAM - 7 -... -
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 135MHz. -
Page 11: 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- COLLECTI CONTROL COUPLER CIRCUIT ISOLATION 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 12: 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 13: Service Osd
SERVICE OSD 1) Turn off the power switch at the front side of the display. 2) Wait for about 3 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) MODULE : To select applied module. -
Page 14: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK POWER BOARD, AND FIND CHECK J705 OUT A SHORT POINT VOLTAGE PIN5, PIN6 (5V)? AS OPENING EACH POWER LINE CHECK CHECK 5VS LINE U501 PIN 8 Voltage (OPEN CHECK) (5V) ? NO PROBLEM CHECK KEY CONTROL... - Page 15 2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS NO RASTER (OSD IS NOT DISPLAYED) J705 PIN5, PIN6 CHECK LIPS CHECK MICOM INV J705 PIN9 ON/OFF PORT. 1. CONFIRM BRIGHTNESS OSD CONTRL STATE. J705 PIN10 2. CHECK MICOM DIM-ADJ PORT CHECK PULSE AS CONTACTING SCOPE...
- Page 16 3. NO RASTER (OSD IS NOT DISPLAYED) – MST9111B NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PIN 8,114 CHECK U801 3.3V? 1. CHECK PIN122, 123 U201 SOLDERING CONDITION PIN122, 123 OSCILLATE AS 2. CHECK X501 12MHZ? 3. TROUBLE IN U201 U501 PIN43 IS 64KHz H-SYNC? CHECK CONNECTION LINE...
- Page 17 4. TROUBLE IN DPM TROUBLE IN DPM CHECK CHECK PC R773, R775 PC IS NOT GOING (SYNC) ? INTO DPM OFF MODE CHECK CHECK H/V SYNC U501 PIN 43.44 LINE SYNC PULSE ? TROUBLE IN U501 - 15 -...
- Page 18 - 16 -...
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Page 19: Exploded View Parts List
Ref. No. Part No. CABINET ASSEMBLY, L1720 BRAND . . 3091TKL086A LCD(LIQUID CRYSTAL DISPLAY), LM170E01-A5K6 LG PHILPS TFT COLOR LVDS SXGA OKI GATE D-IC 6304FLP086A LCD(LIQUID CRYSTAL DISPLAY), LM170E01-A4K4 LG PHILPS TFT COLOR SXGA LVDS OKI GATE D-IC 6304FLP085A LCD(LIQUID CRYSTAL DISPLAY), LM170E01-A5M1 LG PHILPS TFT COLOR SXGA LVDS PEM-NUT... -
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. 1. 9. DATE: 2003. 1. 9. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. - Page 21 DATE: 2003. 1. 9. DATE: 2003. 1. 9. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R209 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP R744 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP R210 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP...
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Page 22: Pin Configuration
PIN CONFIGURATION MST9111B(ANALOG) MSTAR 128P PIN DIAGRAM AVSS_PLL AVSS Pin 1 AVSS LVB0M LVB0P AVDD GNDP VDDP LVB1M AVSS LVB1P LVB2M LVB2P AVDD LVBCKM REXT LVBCKP AVDD_PLL LVB3M AVSS_PLL LVB3P AVDD VDDC AVSS GNDC GNDP VDDP LVA0M LVA0P LVA1M LVA1P LVA2M BIN0M LVA2P... -
Page 23: Schematic Diagram
SCHEMATIC DIAGRAM 1. SCALER - 21 -... - Page 24 2. MICOM - 22 -...
- Page 25 3. POWER - 23 -...
- Page 26 4. CONNECTOR & JACKS - 24 -...
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- Page 29 Blank Page3...
- Page 30 Jan. 2004 P/NO : 3828TSL084G Printed in Korea...