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Service Manual
2
Table of Contents
CHAPTER 1- PRECAUTIONS & SAFET Y 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.
B
LOCK
D
IAGRAM
....................................................................................................................................................................................... 5
2.
E
LECTRONIC
C
IRCUIT
T
HEORY
................................................................................................................................................................. 6
3.
FACTORY
PRESET
TIMING
TABLE .................................................................................................................................................. 8
4.
P
OWER
O
N
/O
FF
S
EQUENCY
...................................................................................................................................................................... 9
5.
D-SUB
C
ONNECTOR
P
IN
A
SSIGNMENT
................................................................................................................................................... 7
6.
AC
O
UTLET
P
IN
A
SSIGNMENT
................................................................................................................................................................ 10
7.
I
NNER
C
ONNECTOR
P
IN
A
SSIGNMENT
................................................................................................................................................... 11
8.
K
EY
P
ARTS
P
IN
A
SSIGNMENTS
................................................................................................................................................................ 13
CHAPTER 4- DISASSEMBLY & ASSEMBLY .................................................................................................................................................19
1.
E
XPLODED
D
IAGRAM
............................................................................................................................................................................... 19
2.
1707FP
F
D
ISASSEMBLY
B
LOCK
.............................................................................................................................................................. 20
3.
A
SSEMBLY
B
LOCK
.................................................................................................................................................................................... 21
CHAPTER 5- TEST AND ADJUSTMENT .........................................................................................................................................................21
1.
F
UNCTION KEY
D
EFINITIONS
.................................................................................................................................................................. 22
2.
OSD
C
ONTROL
..................................................................................................................................................
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3.
F
ACTORY
M
ODE
I
NTRODUCTION
............................................................................................................................................................ 22
4.
B
URN
-
IN PATTERN
..................................................................................................................................................................................... 23
5.
A
UTO
C
OLOR
B
ALANCE
(A
UTOMATICALLY CALIBRATE CHIP
ADC
PARAMETER BY USING CHIP INTERNAL
DAC.) .................. 23
6.
EDID
(R
EWRITE
EDID
DATA TO
EEPROM)........................................................................................................................................ 23
7.
U
PLOAD FIRMWARE VIA
VGA
C
ABLE
.................................................................................................................................................... 30
8.
A
FTER REPAIR
,
TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND ADJUSTMENT
......................................... 32
CHAPTER 6- TROUBLE SHOOTING ...............................................................................................................................................................35
1.
C
OMMON
A
CKNOWLEDGE
................................................................................................................................
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2.
N
O
P
OWER
&
P
OWER
LED
O
FF
............................................................................................................................................................. 35
3.
P
OWER
LED
A
MBER
................................................................................................................................................................................ 38
4.
B
ACKLIGHT CAN
’
T BE TURNED ON
......................................................................................................................................................... 39
5.
N
O PICTURE
&
B
ACKLIGHT ON
............................................................................................................................................................... 40
6.
A
T
32-
GRAY SCALE PATTERN
,
COLOR LOST IN SOME SCALE
................................................................................................................ 41
ATTACHMENT 1- BILL OF MATERIAL...................................................................................................................
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ATTACHMENT 2- SCHEMATIC .........................................................................................................................................................................55
ATTACHMENT 3- PCB LAYOUT ........................................................................................................................................................................70
Summary of Contents for 1907FPf
Page 1: ...Service Manual 0 Service Manual LCD Monitor 1907FPf ...
Page 55: ...Service Manual 54 ...
Page 56: ...Service Manual 55 Attachment 2 Schematic ...
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Page 71: ...Service Manual 70 Attachment 3 PCB Layout Interface Board ...
Page 72: ...Service Manual 71 ...
Page 73: ...Service Manual 72 Power Inverter Board ...
Page 74: ...Service Manual 73 Keypad Board ...
Page 75: ...Service Manual 74 ...
Page 76: ...Service Manual 75 USB Control Board ...
Page 77: ...Service Manual 76 Inverter Control Board ...
Page 78: ...Service Manual 77 Power Control Board ...
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Page 80: ...Service Manual 79 ...