ViewSonic VA1912W Service Manual - Page 59

Power For Scaler

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VGA_5V 1 0603/0R/5%/open 3 2 0603/0R/5%/open DVI_5V 1 GND 1 TP R1 R5 D7 BAV70W/open FBMJ2125HS420/PbF L18 D9 V5A 1 2 B240A-F Vref V33C1 C42 1206/22u/16V/Y/RoHS U4 LM1117MPX-3.3/RoHS 3 VIN VOUT VOUT 2 4 V33C C43 0603/100n/25V/7/RoHS C44 1206/22u/16V/Y/RoHS C45 0603/100n/25V/7/RoHS V33C (SCALER VCC) GND 1 2 VCTRL R202 0603/51R/1% V18C Q8 1 B GND 4 3E C2 H2907AS D35 1N4148WS-F C160 0805/4.7u/16V/Y TP 1 R203 0603/2K/1% V18V1 GND R204 0603/100R/1% Heat-Sink V18C V5A ViewSonic Corporation (POWER FOR SCALER) V33P1 1 GND 1 TP L9 FBMJ2125HS420/PbF U6 LM1117MPX-3.3/RoHS 3 VIN VOUT VOUT 2 4 V33P V33P (Panel VCC) C50 1206/22u/16V/Y/RoHS C51 0603/100n/25V/7/RoHS C52 1206/22u/16V/Y/RoHS C53 0603/100n/25V/7/RoHS GND 56 Confidential - Do Not Copy VA1912w-2_VA1912wb-2 ViewSonic Corporation Model Title Power Date Rev:

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V33P
V33C
V33C
V5A
V33P
V5A
DVI_5V
VGA_5V
VCTRL
V18C
Vref
GND
GND
V18C
GND
(SCALER VCC)
(POWER FOR SCALER)
(Panel VCC)
Heat-Sink
L9
FBMJ2125HS420/PbF
L9
FBMJ2125HS420/PbF
B
1
C
2
E
3
GND
4
Q8
H2907AS
Q8
H2907AS
C160
0805/4.7u/16V/Y
C160
0805/4.7u/16V/Y
TP
1
V33C1
V33C1
R202
0603/51R/1%
R202
0603/51R/1%
GND
1
VOUT
2
VIN
3
VOUT
4
U4
LM1117MPX-3.3/RoHS
U4
LM1117MPX-3.3/RoHS
L18
FBMJ2125HS420/PbF
L18
FBMJ2125HS420/PbF
C44
1206/22u/16V/Y/RoHS
C44
1206/22u/16V/Y/RoHS
R203
0603/2K/1%
R203
0603/2K/1%
1
2
3
D7
BAV70W/open
D7
BAV70W/open
C43
0603/100n/25V/7/RoHS
C43
0603/100n/25V/7/RoHS
1
2
D9
B240A-F
D9
B240A-F
GND
1
VOUT
2
VIN
3
VOUT
4
U6
LM1117MPX-3.3/RoHS
U6
LM1117MPX-3.3/RoHS
C45
0603/100n/25V/7/RoHS
C45
0603/100n/25V/7/RoHS
C53
0603/100n/25V/7/RoHS
C53
0603/100n/25V/7/RoHS
C52
1206/22u/16V/Y/RoHS
C52
1206/22u/16V/Y/RoHS
R1
0603/0R/5%/open
R1
0603/0R/5%/open
TP
1
V33P1
V33P1
C51
0603/100n/25V/7/RoHS
C51
0603/100n/25V/7/RoHS
C50
1206/22u/16V/Y/RoHS
C50
1206/22u/16V/Y/RoHS
TP
1
V18V1
V18V1
1
2
D35
1N4148WS-F
D35
1N4148WS-F
R5
0603/0R/5%/open
R5
0603/0R/5%/open
C42
1206/22u/16V/Y/RoHS
C42
1206/22u/16V/Y/RoHS
R204
0603/100R/1%
R204
0603/100R/1%
ViewSonic Corporation
Model
Title
Date
Rev:
ViewSonic Corporation
5
6
Confidential - Do Not Copy
VA1912w-
2
_VA1912wb-
2
Power