787LE Service Manual
8/25/2003
TABLE OF CONTENTS
PAGE
1. PRECAUTION AND NOTICES------------------------------------------------------------------------------------- 1
1.1. SAFETY PRECAUTIONS ---------------------------------------------------------------------------------------- 1
1.2. PRODUCT SAFETY NOTICE----------------------------------------------------------------------------------- 1
1.3. SERVICE NOTES-------------------------------------------------------------------------------------------------- 1
2. SERVICE TOOL & EQUIPMENT REQUIRED---------------------------------------------------------- 2
3. SPECIFICATIONS ----------------------------------------------------------------------------------------------------- 2~3
3.1.
PRODUCT SPECIFICATIONS
------------------------------------------------------------------------------ 2
3.2.
FACTORY SUPPORTING MODES
------------------------------------------------------------------------ 3
3.3. D-SUB CONNECTOR -------------------------------------------------------------------------------------------- 3
4. EXPLODED VIEW AND PARTS LIST --------------------------------------------------------------------------- 4~5
4.1. EXPLODED VIEW------------------------------------------------------------------------------------------------ 4
4.2. EXPLODED VIEW PARTS LIST-------------------------------------------------------------------------------- 5
5. BLOCK DIAGRAM---------------------------------------------------------------------------------------------------- 6
6. SCHEMATIC DIAGRAM -------------------------------------------------------------------------------------------- 7~13
6.1. ADE------------------------------------------------------------------------------------------------------------------ 7
6.2. POWER ------------------------------------------------------------------------------------------------------------- 8
6.3. INPUT INTERFACE ---------------------------------------------------------------------------------------------- 9
6.4. OUTPUT INTERFACE ------------------------------------------------------------------------------------------- 10
6.5. MICRO CONTROLLER ------------------------------------------------------------------------------------------ 11
6.6. POWER PCB------------------------------------------------------------------------------------------------------- 12
6.7. INVERTER---------------------------------------------------------------------------------------------------------- 13
7. WORKING THEOREM----------------------------------------------------------------------------------------------- 14~19
8. WIRING DIAGRAM--------------------------------------------------------------------------------------------------- 20
9. PCB LAYOUT----------------------------------------------------------------------------------------------------------- 21~26
9.1. MAIN PCB TOP VIEW ------------------------------------------------------------------------------------------- 21
9.2. MAIN PCB BOTTOM VIEW------------------------------------------------------------------------------------- 22
9.3. CON PCB TOP VIEW -------------------------------------------------------------------------------------------- 23
9.4. CON PCB BOTTOM VIEW -------------------------------------------------------------------------------------- 24
9.5. POWER PCB TOP VIEW ---------------------------------------------------------------------------------------- 25
9.6. POWER PCB BOTTOM VIEW ---------------------------------------------------------------------------------- 26
10. TROUBLE SHOOTING FLOW CHART ------------------------------------------------------------------------- 27~30
10.1. NO POWER -------------------------------------------------------------------------------------------------------- 27
10.2. MCU NO FUNCTION -------------------------------------------------------------------------------------------- 28
10.3. NO DISPLAY------------------------------------------------------------------------------------------------------- 29
10.4. LOSE COLOR------------------------------------------------------------------------------------------------------ 30
11. ADJUSTMENT---------------------------------------------------------------------------------------------------------- 31~32
11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS------------------------------------------------------- 31
11.2. MAIN ADJUSTMENTS ------------------------------------------------------------------------------------------- 31
11.3. ALIGNMENT PROCEDURES----------------------------------------------------------------------------------- 31
12. ELECTRICAL PARTS LIST ---------------------------------------------------------------------------------------- 33~41
