ViewSonic VA1912w-3 Service Manual page 59

R1 R1 R5 R5
D7 D7
BAV70W/open BAV70W/open
FBMJ2125HS420/PbF FBMJ2125HS420/PbF
L18 L18 D9 D9
1 2
V5A
B240A-F B240A-F
Vref
L9 L9
V5A
ViewSonic Corporation
U4 U4
LM1117MPX-3.3/RoHS LM1117MPX-3.3/RoHS
3
VIN VOUT
VOUT
C42 C42
C43 C43
1206/22u/16V/Y/RoHS 1206/22u/16V/Y/RoHS 0603/100n/25V/7/RoHS 0603/100n/25V/7/RoHS 1206/22u/16V/Y/RoHS 1206/22u/16V/Y/RoHS
GND
U6 U6
FBMJ2125HS420/PbF FBMJ2125HS420/PbF LM1117MPX-3.3/RoHS LM1117MPX-3.3/RoHS
3 2
VIN VOUT
4
VOUT
C50 C50 C51 C51
1206/22u/16V/Y/RoHS 1206/22u/16V/Y/RoHS 0603/100n/25V/7/RoHS 0603/100n/25V/7/RoHS 1206/22u/16V/Y/RoHS 1206/22u/16V/Y/RoHS
GND
56
Confidential - Do Not Copy VA1912w-3_VA1912wb-3
V33C1 V33C1
V33C
2
V33C
4
(SCALER VCC)
C44 C44
C45 C45
0603/100n/25V/7/RoHS 0603/100n/25V/7/RoHS
(POWER FOR SCALER)
V33P1 V33P1
V33P
V33P
(Panel VCC)
C52 C52 C53 C53
0603/100n/25V/7/RoHS 0603/100n/25V/7/RoHS
VCTRL
R202 R202
0603/51R/1% 0603/51R/1%
V18C
V18C
Q8 Q8
C160 C160
0805/4.7u/16V/Y 0805/4.7u/16V/Y
1 4
B GND
3 2
E C
H2907AS H2907AS
R203 R203
0603/2K/1% 0603/2K/1%
V18V1 V18V1
D35 D35
1N4148WS-F 1N4148WS-F
GND
R204 R204
0603/100R/1% 0603/100R/1%
Heat-Sink
ViewSonic Corporation
Model
POWER
Title
Date Rev: