ViewSonic VA902B - 19" LCD Monitor, Service Manual

Page: 42 / 51

39
ViewSonic Corporation
Co
nfidential
-
Do Not Copy VA902/b
Inverter
+14V
C511
2.2uF/25V
R513
0R
D502
BAV99
1 2
3
1.4K
Q501
2N7002
1
3
2
D512
1N4148W
IS3
C531
0.1u/50V
D508
BAV99
1
2
3
D503
BAV99
1
2
3
IS1
BRIGHTNESS
Q503
2N7002
1
3 2
R519
1M
C534
0.1u/50V
J507
33R 1/4W
R503
3M/3KV
C503
100n/50V
R526 47K 1%
R527
3.3M 1%
OVP1
R517
1M
C536
220pF/50V
OP1
J501
33R 1/4W
R534
10K
R502
3.6K
R524
360K 1%
1.5K
OP3
CN501
H
L
C527
5P/3KV
+
C509
220uF/25V
C525
5P/3KV
D506
BAV99
1 2
3
ON/OFF
R512
1k
R533
10K
T502
EEL-19 22:2600
2
3
5
6
8
7
AUO
OP
3
C532
0.1u/50V
IS1
R514 0R
D507
BAV99 1
2
3
R515
1M
CN502
H
L
1.5K
D505
BAV99 1
2
3
Q502
2N7002
1
3 2
NOTE:
紅色粗線
:
表示高電壓迴路
;
紅色虛線
:
表示易發熱元件
;
橘色粗線
:
表示大電流迴路
;
IS3
V03 3 3
A4 0921341041
LE1909 (VA902/b)
Inverter
2005-07-15
InnoLux
Document Number : SIZE :
TITLE :
DATE :
SHEET OF
Rev :
DRAWN BY :
CHECK BY :
APPRO BY :
D501
BAV99
1 2
3
R528
124K 1%
R501
3M/3kv
CN504
H
L
R532
10K
R522
88.7K 1%
HSD/INL
C505
0.01u/25V
C529
220P G/ 50V
U501
AOP605
1
2
3
4
5
6
7
8
S1
G1
S2
G2 D2
D2
D1
D1
1 2
D514
SKS20-04AT
C528
1.0u/25V
5V
R521
1M
C506
4700P/50V
D510
1N4148W
C524
10P/3KV
1.5K
R523
62K 1%
C504
1n/50V
R504
3.6K
Q505
2N7002
1
3 2
5V
C533
0.1u/50V
R508
100K
T501
EEL-19 22:2600
2
3
5
6
8
7
IC501
OZ9910G
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
NDRV2
PGND
NDRV1
GNDA
CT
LCT
DIM
ENA VSEN
CMP_SST
ISEN
V5000
VIN
HSB
PDRV1
PDRV2
OVP2
R511
D511
1N4148W
1 2
D513 SKS20-04AT
C538
NC
R507
3.9K 1%
+
C522
220uF/25V
C535
220pF
R531
10K
ITEM
OVP1
C526
10P/3KV
R510
1k
C508
22n/25V
C537
NC
CN503
H
L
1.5K 5V
C507
2200p/50V
R509 1.5K 1%
Q504
2N7002
1
3 2
OP1
OP4
+5V
R529
1M
1.4K
C502
2.2u/25v
OP2
R505
1M
R509
OP4
D504
BAV99
1 2
3
OVP2
U502
AOP605
1
2
3
4 5
6
7
8
S1
G1
S2
G2
D2
D2
D1
D1
C523
6.8n/50V
OP
2
R506
3.9K 1%
QDI
D509
1N4148W
R511
1.5K 1%
C530
6.8n/50V
ViewSonic VA902/b