Dell E1709W Service Manual download pdf (Page 3)

Service Manual

Table of Contents

CHAPTER 1- PRECAUTIONS & SAFETY NOTICES .............................................................................................................................. 3

SAFETY PRECAUTIONS ........................................................................................................................................................ 3

PRODUCT SAFETY NOTICE .................................................................................................................................................. 3

SERVICE NOTES .................................................................................................................................................................... 3

CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED ................................................................................................................. 4

CHAPTER 3- CIRCUIT THEORY.............................................................................................................................................................. 5

1. B

LOCK DIAGRAM ....................................................................................................................................................................... 5

2. E

LECTRONIC CIRCUIT THEORY ................................................................................................................................................... 7

3. FACTORY

PRESET TIMING TABLE..................................................................................................................................... 13

4. P

OWER ON/OFF SEQUENCY..................................................................................................................................................... 13

5. D-SUB

CONNECTOR PIN ASSIGNMENT ..................................................................................................................................... 14

6. AC

OUTLET PIN ASSIGNMENT .................................................................................................................................................. 14

7. I

NNER CONNECTOR PIN ASSIGNMENT........................................................................................................................................ 14

8. K

EY PARTS PIN ASSIGNMENTS.................................................................................................................................................. 16

CHAPTER 4- DISASSEMBLY & ASSEMBLY ........................................................................................................................................ 21

1. E

XPLODED DIAGRAM ............................................................................................................................................................... 21

2. E1709WFP

F DISASSEMBLY BLOCK .......................................................................................................................................... 22

3. A

SSEMBLY BLOCK ................................................................................................................................................................... 23

CHAPTER 5- TEST AND ADJUSTMENT............................................................................................................................................... 24

1. F

UNCTION KEY DEFINITIONS ..................................................................................................................................................... 24

2. OSD

CONTROL....................................................................................................................................................................... 24

3. F

ACTORY MODE INTRODUCTION................................................................................................................................................ 26

4. B

URN-IN PATTERN.................................................................................................................................................................... 27

5. A

UTO COLOR BALANCE (AUTOMATICALLY CALIBRATE CHIP ADC PARAMETER BY USING CHIP INTERNAL DAC.)................................... 27

6. U

PLOAD FIRMWARE TO MCU VIA VGA CABLE ............................................................................................................................ 26

7. A

FTER REPAIR, TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND ADJUSTMENT................................................... 27

CHAPTER 6- TROUBLE SHOOTING..................................................................................................................................................... 30

1. C

OMMON ACKNOWLEDGE......................................................................................................................................................... 30

2. N

O POWER LED OFF .............................................................................................................................................................. 30

3. P

OWER NORMAL LED AMBER ................................................................................................................................................... 31

4. B

ACKLIGHT CAN’T BE TURNED ON .............................................................................................................................................. 32

5. N

O PICTURE BACKLIGHT ON.................................................................................................................................................... 33

6. A

T 32-GRAY SCALE PATTERN, COLOR LOST IN SOME SCALE........................................................................................................... 34

CHAPTER 7- RECOMMENDED PART LIST.......................................................................................................................................... 35

ATTACHMENT 1- BILL OF MATERIAL.................................................................................................................................................. 37

ATTACHMENT 2- SCHEMATIC.............................................................................................................................................................. 47

ATTACHMENT 3- PCB LAYOUT............................................................................................................................................................ 52

1 2 3 4 5 6 7 8 ... 61 62

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