ViewSonic VA930-1 VLCDS24020-1W Service Manual page 37

T50 5Va
T51 BL_ENABLE
T52 BL_ADJUST
T53 LCD_VCC
T54 12V_AUDIO
L27
BEAD(1206)
L28
F1 BEAD(1206)
12V_INPUT
L29
BEAD(1206)
4A_FUSE
C141
100u/16v
L33
BEAD(1206)
GND_INPUT
L35
BEAD(1206)
T54
L37
BEAD(1206)
12V_AUDIO
U20
SI9435DY
12V
8
D
7 3
D S
C152
6 2
D S
0.1u
5 1
D S
C154 R90
0.1U 24K
5V_STBY
R92
4.7K
R96
Q9
10K MMBT3904L
1
Q12
R98
MMBT3904L 2K
R101
2K
1
AUDIO_EN
R104
2K
add silk position "U18A"
U18
CY1032_SK L30A 100UH
12V
1 4
VIN FB
C139
L30 100UH
5 2
SHDN SW
C142
0.1u
470u/16v
R86 D7
0 SK24
U21
AIC1084-33
3V3
4
SINK
3 2
INPUT OUTPUT
C155
100u/16v
3_3Va
L39
Bead
C159
C160
0.1u 100u/16v
PSC0
ViewSonic Corporation
T51 T52
L25
C136
BEAD
L26
470u/16v
BEAD
C137
0.1u
C138
0.1u
T50
5Va
L31
R85
12V
C144 C145 C146
0
L32
470u/16v 0.1u 470u/16v
L34
R87
NC
L36
L38
BEAD(1206)
Q7
IRLMS1503
1
D
2
D
3V3b
5 100u/16v
D
6 4
D S
C157
C156
100u/16v 0.1u
12V
R93 C158
0.1u
100K
R94
10K
CONTL
Q10
1
PSC1
R99
MMBT3904L
R102 R100
2K
2K 2K
34
Confidential – Do Not Copy
12V_INVERTER
BL_ENABLE
BL_ADJUST
5Va 12V
R82
R83
1K
10K
R84
22
Q5
1
MMBT3904L
Q6
IRLMS1503
5V_STBY
1
D
BEAD(0805) 2
D
5
D
C143
100u/16v
6 4
D S
NC(1206)
NC(1206)
CONTL
BEAD(1206)
R88
C148
100K
0.1u
LCD_VCC
U19
L47
BEAD(1206)
SI9433DY
8
D
3 7
S D
C149
C151
2 6
S D
100u/16v
1 5
S D
R89
C153 C169
24K
0.1U 0.1u
5V_STBY
R91
4.7K
R95
10K
R97
2K
Q8
1
MMBT3904L
Q11
1
MMBT3904L
R103
2K
DPWBN5419T8----
BOARD ID: QPWB-5419T8---C
ViewSonic VA930
Title
Size Document Number
POWER
Custom
Date: Thursday, July 04, 2002 Sheet
VA930-1
BL_BRI
BL_ON_OFF
5Vb
C147
100u/16v
T53
C150 R112
680
0.1u
Rev
C
of