Acer AL1917W C, Руководство по обслуживанию

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Acer Service Manual
2
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
2. INTERFACE BOARD DIAGRAM ................................................................................................................................................... 5
3. E
LECTRONIC
C
IRCUIT
T
HEORY
.......................................................................................................................................................... 6
CHAPTER 4- DISASSEMBLY & ASSEMBLY ................................................................................................................................... 9
1. E
XPLODED
D
IAGRAM
........................................................................................................................................................................ 9
2. D
ISASSEMBLY
B
LOCK
..................................................................................................................................................................... 10
3. A
SSEMBLY
B
LOCK
........................................................................................................................................................................... 11
CHAPTER 5- TEST AND ADJUSTMENT ........................................................................................................................................ 12
1. GENERAL POINTS ............................................................................................................................................................... 12
1.1 T
EST
E
QUIPMENT OR
T
OOL
................................................................................................................................................ 12
1.2 P
RESET
T
EST
P
ATTERN
....................................................................................................................................................... 12
1.3 AC
INPUT
............................................................................................................................................................................. 12
1.4 O
BSERVATION
D
ISTANCE
.................................................................................................................................................... 12
1.5 K
EY
F
UNCTION
D
ESCRIPTION
............................................................................................................................................ 12
1.6 B
URN
-
IN
(A
GING
) P
ATTERN
................................................................................................................................................ 13
1.7 W
ARM
U
P
............................................................................................................................................................................. 13
2. INPUT SIGNAL ...................................................................................................................................................................... 13
2.1 V
IDEO
S
IGNAL
I
NPUT
.......................................................................................................................................................... 13
3.
FUNCTION CHECK
............................................................................................................................................................. 15
3.1 OSD F
UNCTION
T
EST
......................................................................................................................................................... 15
3.2 S
CREEN
P
ICTURE
C
HECK
................................................................................................................................................... 15
3.3 A
UTO
C
OLOR
B
ALANCE
...................................................................................................................................................... 15
3.4 T
IMING
C
HECK
................................................................................................................................................................... 15
3.5 P
OWER
C
ONSUMPTION
F
UNCTION
T
EST
............................................................................................................................ 15
3.6 VGA C
ABLE
D
ETECT
T
EST
................................................................................................................................................. 16
3.7 H
I
-P
OT TEST
........................................................................................................................................................................ 16
3.8 G
ROUNDING
T
EST
............................................................................................................................................................... 16
3.9 B
UMPING
T
EST
.................................................................................................................................................................... 16
4. DISPLAY CHECK .................................................................................................................................................................. 16
4.1 P
ANEL
F
LICKER
C
HECK
...................................................................................................................................................... 16
4.2 P
ANEL
D
EFECT
I
NSPECTION
............................................................................................................................................... 16
5.
PICTURE CHECK
................................................................................................................................................................. 17
5.1 C
HECK BRIGHTNESS UNIFORMITY
...................................................................................................................................... 17
5.2 C
OLOR
T
EMPERATURE
C
HECK
.......................................................................................................................................... 18
5.3 B
RIGHTNESS
O
UT
(V
IDEO SIGNAL INPUT
700
M
V ± 2%) .................................................................................................... 19
5.4 DDC D
ATA
C
HECK
.............................................................................................................................................................. 19
CHAPTER 6- TROUBLE SHOOTING.............................................................................................................................................. 20
1. N
O
P
OWER
& LED O
FF
................................................................................................................................................................... 20
ATTACHMENT 1- BILL OF MATERIAL......................................................................................................................................... 27
PCBA P+I .............................................................................................................................................................................................. 27
ATTACHMENT 2- SCHEMATIC....................................................................................................................................................... 33
ATTACHMENT 3- PCB LAYOUT ..................................................................................................................................................... 41