ViewSonic VLCDS23722-1W Service Manual page 25

J3
NC(DC_IN)
F1 12V
JP7
5A_FUSE
1
2
3
C64
4
0.1u C66 C65
470u/16v 0.1u
NC(CON4)
POWER IN
U13
3
INPUT
R76
control_5v
NC
C103
0.1u
12V_INVERTER
RFIL-5231T8600A
BL_ENABLE
L16
BL_ADJUST
RFIL-5231T8600A L17
C77 C78
NC 0.1u
U11
SHARP PQ1CY1032ZQC
FB
1 4
VIN FB
L13
SHDN 5 2
SHDN SW
R74 D6 D7
B320 NC(B320)
NC
R74 NOT CONNECT 90/12/13
3V3_MCU
AIC1084-3.3 RFIL-5231T8600A
3V3
L14
4
OUTPUT
2
OUTPUT
12V
C71
100u/16V
R45
10K
R43
100K
Q7
1
PSC0
R48 MMBT3904L
2K R50
2K
JP6
5
12V
4
GND
3
ADJUST
2
ON-OFF
1
ON_OFF
CON5
ViewSonic Corporation
L12
39RFIL-5233T8700A
C61
100u/16V
R79
R67 1K
3K
5V
47UH
C68 C69 R75
0.1u 1K
1000U/10v
RFIL-5231T8600A
R91 0_Ohm
L34
Q4
3V3b
1 2
3 4
5 6
C72
C73
BSH107 0.1u 100u/16V
control_5v
C74
0.22u
U16
12V AIC1732_3.3V
RFIL-5231T8600A
2 3
VIN VOUT
C101
0.1u
2 2
Confidential – Do Not Copy
12V_INVERTER
BL_ENABLE
BL_ADJUST
R39 10
5V 12V
C62
0.1u
R40 R41
10K
1K
C63 Q3
1
0.1u MMBT3904L
R42
22
JP1
Panel_Select
5V 3.3V
U12 AIC1084-3.3
4
OUTPUT
3 2
INPUT OUTPUT
12V
C70
100u/16V
R44
10K
Q6
1
PSC1
MMBT3904L
R47
2K R49
2K
3V3_MCU
L33
C102
100u/16V
Title
VE500-1
Size Document Number
Custom
Date: Thursday, March 14, 2002
BL_BRI
BL_ON_OFF
L5
LCD_VCC
39RFIL-5233T8700A
R62 C76
1k
Q5 100u/16V
BSH107
R46
100K
C75
0.22u
GND
QPWB-5396T8---B
POWER_VIEWSONIC
Rev
B
DPWBN5396T8---B
Sheet 4 of 5