BUFFALO
Service Manual
2
Table of Contents
Table of Contents ------------------------------------------------------------------------------ 02
Revision List -------------------------------------------------------------------------------------03
1. Monitor Specification ---------------------------------------------------------------------04
2. LCD Monitor Description ---------------------------------------------------------------05
3. Operation Instructions --------------------------------------------------------------------06
3.1 General Instructions ------------------------------------------------------------------06
3.2 Operation Instructions ------------------------------------------------------------------06
3.3 Adjusting The Picture ----------------------------------------------------------------07
4. Input/Output Specification ---------------------------------------------------------------09
4.1 Input Signal Connector --------------------------------------------------------------09
4.2 Factory Preset Display Modes -----------------------------------------------------09
4.3 Power Supply Requirements -------------------------------------------------------10
5. Software Flow Chart -----------------------------------------------------------------------------11
6. Circuit Description ------------------------------------------------------------------------------------------------------12
6 . 1 B l o c k D i a g r a m - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 2
6.2 Introduction of main IC --------------------------------------------------------------13
7. Trouble Shooting -------------------------------------------------------------------------------------------------------16
7 . 1 M a i n B o a r d - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 6
7 . 2 P W P C B o a r d - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 9
8. Schematic ------------------------------------------------------------------------------------------------------------------21
8.1 Main Board ----------------------------------------------------------------------------------------------------------21
8.2 Inverter/Power Board --------------------------------------------------------------------------------------------26
8.3 Key Pad Board -----------------------------------------------------------------------------------------------------28
8.4 Audio Board ------------------------------------------------------------------------------------------------------- 28
9. BOM List -------------------------------------------------------------------------------------------------------------30
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Summary of Contents for FTD-G731AS
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