Service Manual
2
Table of Contents
CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ......................................................................................................................
1.
SAFETY
PRECAUTIONS .....................................................................................................................................................
2.
PRODUCT
SAFETY
NOTICE ................................................................................................................................
3.
SERVICE
NOTES ................................................................................................................................................................
CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED ................................................................................................
CHAPTER 3- CIRCUIT THEORY .......................................................................................................................................................
1.
B
LOCK
D
IAGRAM
................................................................................................................................................................
2.
E
LECTRONIC
C
IRCUIT
T
HEORY
................................................................................................................................
3.
FACTORY
PRESET
TIMING
TABLE ................................................................................................................................
4.
P
OWER
O
N
/O
FF
S
EQUENCY
...................................................................................................................................................
5.
D-SUB
C
ONNECTOR
P
IN
A
SSIGNMENT
................................................................................................................................
6.
AC
O
UTLET
P
IN
A
SSIGNMENT
................................................................................................................................
7.
I
NNER
C
ONNECTOR
P
IN
A
SSIGNMENT
................................................................................................................................
8.
K
EY
P
ARTS
P
IN
A
SSIGNMENTS
................................................................................................................................
CHAPTER 4- DISASSEMBLY & ASSEMBLY ................................................................................................................................
1.
E
XPLODED
D
IAGRAM
............................................................................................................................................................
2.
2209WA
D
ISASSEMBLY
B
LOCK
................................................................................................................................
3.
A
SSEMBLY
B
LOCK
................................................................................................................................................................
CHAPTER 5- TEST AND ADJUSTMENT ................................................................................................................................
1.
F
UNCTION KEY
D
EFINITIONS
.................................................................................................................................................
2.
OSD
C
ONTROL
................................................................................................................................................................
3.
F
ACTORY
M
ODE
I
NTRODUCTION
................................................................................................................................
4.
B
URN
-
IN PATTERN
................................................................................................................................................................
5.
A
UTO
C
OLOR
B
ALANCE
(A
UTOMATICALLY CALIBRATE CHIP
ADC
PARAMETER BY USING CHIP
INTERNAL
DAC.) .................................................................................................................................................................................
6.
U
PLOAD FIRMWARE TO
MCU
VIA
VGA
C
ABLE
.....................................................................................................................
7.
A
FTER REPAIR
,
TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND
ADJUSTMENT
. .......................................................................................................................................................................................
CHAPTER 6- TROUBLE SHOOTING ................................................................................................................................
1.
C
OMMON
A
CKNOWLEDGE
.....................................................................................................................................................
2.
N
O
P
OWER
LED
O
FF
.............................................................................................................................................................
3.
P
OWER NORMAL
LED
A
MBER
................................................................................................................................
4.
B
ACKLIGHT CAN
’
T BE TURNED ON
................................................................................................................................
5.
N
O PICTURE
B
ACKLIGHT ON
................................................................................................................................
6.
A
T
32-
GRAY SCALE PATTERN
,
COLOR LOST IN SOME SCALE
................................................................................................
CHAPTER 7- RECOMMENDED PART LIST ................................................................................................................................
ATTACHMENT 1- BILL OF MATERIAL ................................................................................................................................
ATTACHMENT 2- SCHEMATIC .......................................................................................................................................................
ATTACHMENT 3- PCB LAYOUT ......................................................................................................................................................
Содержание 2209WA - UltraSharp - 22" LCD Monitor
Страница 1: ...Service Manual 0 Service Manual LCD Monitor 2209WA ...
Страница 25: ...Service Manual 24 8 Key Parts Pin Assignments 8 1 U105 TSUMU58EHJ LF ...
Страница 26: ...Service Manual 25 ...
Страница 27: ...Service Manual 26 ...
Страница 31: ...Service Manual 30 ...
Страница 32: ...Service Manual 31 Chapter 4 Disassembly Assembly 1 Exploded Diagram ...
Страница 36: ...Service Manual 35 Note 1 The arrows point out the direction of assembly ...
Страница 44: ...Service Manual 43 ...
Страница 80: ...Service Manual 79 ...
Страница 81: ...Service Manual 80 Attachment 3 PCB Layout power inverter bd inverter board Top Layer Bottom Layer ...
Страница 82: ...Service Manual 81 Main board Top Layer ...
Страница 83: ...Service Manual 82 Bottom Layer ...
Страница 84: ...Service Manual 83 Keypad USB convert board ...
Страница 85: ...Service Manual 84 ...