Service Manual
Table of Contents
CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ....................................................................................................................................3
1. SAFETY PRECAUTIONS.......................................................................................................................................................................3
2. PRODUCT SAFETY NOTICE ...............................................................................................................................................................3
3. SERVICE NOTES .....................................................................................................................................................................................3
CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED ..................................................................................................................4
CHAPTER 3- CIRCUIT THEORY.........................................................................................................................................................................5
1. BLOCK DIAGRAM .......................................................................................................................................................................................5
2. ELECTRONIC CIRCUIT THEORY.................................................................................................................................................................6
3. FACTORY PRESET TIMING TABLE..................................................................................................................................................8
4. POWER ON/OFF SEQUENCY......................................................................................................................................................................9
5. D-SUB CONNECTOR PIN ASSIGNMENT...................................................................................................................................................7
6. AC OUTLET PIN ASSIGNMENT................................................................................................................................................................10
7. INNER CONNECTOR PIN ASSIGNMENT ...................................................................................................................................................11
8. KEY PARTS PIN ASSIGNMENTS................................................................................................................................................................13
CHAPTER 4- DISASSEMBLY & ASSEMBLY .................................................................................................................................................19
1. EXPLODED DIAGRAM...............................................................................................................................................................................19
2. 1707FPF DISASSEMBLY BLOCK..............................................................................................................................................................20
3. ASSEMBLY BLOCK....................................................................................................................................................................................21
CHAPTER 5- TEST AND ADJUSTMENT .........................................................................................................................................................21
1. FUNCTION KEY DEFINITIONS..................................................................................................................................................................22
2. OSD CONTROL..................................................................................................................................................錯誤! 尚未定義書籤。
3. FACTORY MODE INTRODUCTION............................................................................................................................................................22
4. BURN-IN PATTERN.....................................................................................................................................................................................23
5. AUTO COLOR BALANCE (AUTOMATICALLY CALIBRATE CHIP ADC PARAMETER BY USING CHIP INTERNAL DAC.) ..................23
6. EDID (REWRITE EDID DATA TO EEPROM)........................................................................................................................................23
7. UPLOAD FIRMWARE VIA VGA CABLE....................................................................................................................................................30
8. AFTER REPAIR, TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND ADJUSTMENT.........................................32
CHAPTER 6- TROUBLE SHOOTING...............................................................................................................................................................35
1. COMMON ACKNOWLEDGE................................................................................................................................錯誤! 尚未定義書籤。
2. NO POWER & POWER LED OFF .............................................................................................................................................................35
3. POWER LED AMBER................................................................................................................................................................................38
4. BACKLIGHT CAN’T BE TURNED ON.........................................................................................................................................................39
5. NO PICTURE & BACKLIGHT ON...............................................................................................................................................................40
6. AT 32-GRAY SCALE PATTERN, COLOR LOST IN SOME SCALE................................................................................................................41
ATTACHMENT 1- BILL OF MATERIAL...................................................................................................................錯誤! 尚未定義書籤。
ATTACHMENT 2- SCHEMATIC .........................................................................................................................................................................55
ATTACHMENT 3- PCB LAYOUT........................................................................................................................................................................70
To Next Page
Loading...
