Schematic Diagrams - ViewSonic N2750w-1 Service Manual

6. Schematic Diagrams

6.1 DC-Power
P126
L1813.5X9X0.8
4
3
L182 3.5X9X0.8
2
1
4 HEADER
+12VIN
P101
ION_OFF R509 0R
10
IADJ
9
8
L101
7
CHOKE
6
5
4
3
2
C101
1
1000uF/16V
CON10
R104
10K
VCC
C574
330p
VCC=+5V
VCCV +3V3
I104
LM1084/3V3/TO263
3 2
VI VO
R116 NC
C118
47uF/16V
R117
0R C119
220uF/16V
VCC
R268
10K
R275
2
R267 4K7 Q110
1
TVM_PWRp
11 MMBT3904
3
ViewSonic Corporation
+12VIN
P
I101
VCC
SAKEN/8050SD
1 4
VIN FEEDBACK
L104 40uH
5 2
ON/OFF OUTPUT
R101 D101
NC/0R MS22 C106
P 1500uF/10VLESR
VCCV
R111
4K7
R114 4K7
R115 4K7
2
1 Q105
8 PHDPWM0
C117
3
MMBT3904 330p
R118 NC
VCC
+3V3 +3V3
R269 R270
TVM_PWRp
NC NC 11
Q111
1 8
S1 D1
4K7
2 7
G1 D1 +3V3S
3 6
S2 D2
4 5
+5VS
G2 D2
SI9933ADY
11
Confidential - Do Not Copy N2750w-1
+12V +12VIN
L107 I103
CHOKE SAKEN/8050SD
1
5
C113
NC
R102
NC/0R
R103
11 SYS_PD
NC/0R
L106
VCC
BEAD/80R
VCCV
R106
10K
R107
2K2
2
R108 4K7
1
11 PANELPWR
Q103
3
MMBT3904
IADJ R110
VCC
+2V5
+2V5
R272
10K Q113
AP9620M R274
NC
R273 4K7
4 4
2
R271 4K7 Q112
1
3 MMBT3904
VCCV
4
VIN FEEDBACK
L108 40uH
2
ON/OFF OUTPUT
D103
MS22 C115
P 1500uF/10VLESR
R105
2K2 Q101
FDS9435
4 4
Vpnl
2
Q102
1
MMBT3904
3
R109
150R/0805
C111 C112
100n 47uF/16V
Q104
MMBT3904 2
4K7
1
3
VCCV
+3V3
R121
4K7
R122 Q106
4K7
R124 MMBT3904
10K
2
1
11 BACKLITn
3 C121
NC
+2V5S
ION_OFF