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IBM L170 Service Manual
SERVICE MANUAL
17" LCD Monitor
IBM L170
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT
HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE
ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE
LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
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IBM L170 Service Manual
Table of Contents
Table of Contents -----------------------------------------------------------------2
1. MONITOR SPECIFICATIONS ----------------------------------------------------4
2. LCD MONITOR DESCRIPTION -----------------------------------------------5
3. OPERATING INSTRUCTIONS ------------------------------------------------6
3.1 GENERAL INSTRUCTIONS --------------------------------------------------6
3.2 CONTROL BUTTONS -----------------------------------------------------------6
3.3 ADJUSTING THE PICTURE --------------------------------------------------6
4. Input/Outpt Specification --------------------------------------------------------8
4.1 Input Signal Connector --------------------------------------------------------8
4.1.1 Analog D-SUB Connector ----------------------------------------------------8
4.2 Factory Preset Display Modes -----------------------------------------------8
4.3 Power Supply Requirements ----------------------------------------------10
4.3.1 Input Requirements ----------------------------------------------------------10
4.3.2 Output Requirements -------------------------------------------------------10
4.4 PANEL SPECIFICATION (Samsung ) -------------------------------------11
4.4.1 Panel Feature ----------------------------------------------------------------11
4.4.2 Display Characteristics --------------------------------------------------11
4.4.3 Optical Characteristics -----------------------------------------------------11
4.4.4 Parameter guide line for CCFL Inverter ------------------------------12
5. Block Diagram --------------------------------------------------------------------13
5.1 Monitor Exploded View ------------------------------------------------------13
5.2 Software Flow Chart -----------------------------------------------------------14
5.3 Electrical Block Diagram -----------------------------------------------------16
5.3.1 Main Board --------------------------------------------------------------------16
5.3.2 Inverter/Power Board ------------------------------------------------------17
6. Schematic ------------------------------------------------------------------------19
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IBM L170 Service Manual
6.1 Main Board ----------------------------------------------------------------------19
6.2 Inverter/Power Board --------------------------------------------------------22
6.3 KeyPad Board -----------------------------------------------------------------24
7. PCB Layout -----------------------------------------------------------------------25
7.1 Main Board ---------------------------------------------------------------------25
7.2 Inverter/Power Board --------------------------------------------------------27
7.3 Keypad Board ------------------------------------------------------------------28
8. Maintainability --------------------------------------------------------------------28
8.1 Equirements and Tools Requirements ---------------------------------28
8.2 Trouble Shooting --------------------------------------------------------------29
8.2.1 Main Board --------------------------------------------------------------------29
8.2.2 Power/Inverter Board ------------------------------------------------------32
8.2.3 Key Pad Board ---------------------------------------------------------------34
9. White-Balance, Luminance adjustment --------------------------------35
10. EDIT Content ------------------------------------------------------------------36
11. BOM List --------------------------------------------------------------------------37
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IBM L170 Service Manual
1. MONITOR SPECIFICATIONS
Driving system TFT Color LCD
LCD Panel Size 43.2cm(17.0")
Pixel pitch 0.264mm( H )x 0.264mm( V )
Viewable angle 140