Service manual

5V_ST 12V_SYS
13V_FAN
3.3V_ST
5V_ST
12V_SYS
5V_ADC
3.3V_DSP12V_SYS
5V_ADC 3VAA
12V_SYS
2.5V_DSP
12V_SYS
5V_ST
13V_FAN
POW ER_HC 2,11
DC POWER INPUT
close to con n ector
12V_SYS
-6V
POWER CURRENT
450mA
3300mA
100mA
1200mA
5V_ST
13V_FAN
400mA
FOR STAND-BY POWER
12V_SYS ĺ 5V_AD C
12V_SYS ĺ 3.3V_DSP
FOR FAN_LAMP_TEMP_SENSOR POWER
17.5mA
OUTPUT 3A MAX
2300mA
12V_SYS ĺ 2.5V_DSP
2000mA
3300mA
C93
10uF/16V
C93
10uF/16V
VIN
7
NC1
2
NC2
3
EN A
5
GND
6
PWPD
G1
VSEN SE
4
PH
8
BOOT
1
U6
TPS5430
U6
TPS5430
C49
470U/6.3V_TANT
C49
470U/6.3V_TANT
TP111TP111
R334
NC/10K
R334
NC/10K
1 2
L1
15uH
L1
15uH
VI
I
VO
O
ADJ
A
TAB
4
U19
AIC1117-3.3
U19
AIC1117-3.3
+
C68
220uF/6.3V
+
C68
220uF/6.3V
TP843
5V_ST
TP843
5V_ST
C27
0.01uF
C27
0.01uF
+
C24
47uF/25V
+
C24
47uF/25V
1 2
L4 33uHL4 33uH
C433
1nF
C433
1nF
TP779TP779
C733
0.1uF
C733
0.1uF
C764
0.1uF
C764
0.1uF
R339
100K
R339
100K
TP36
13V_FAN
TP36
13V_FAN
C763
0.1uF
C763
0.1uF
C94
10uF/10V
C94
10uF/10V
A C
D3
B340A
D3
B340A
TP59TP59
C75
0.1uF
C75
0.1uF
R335
7.87K/1%
R335
7.87K/1%
C41
0.1uF
C41
0.1uF
TP776TP776
C21
0.1uF
C21
0.1uF
1 2
SPR4L3*W6*H10 SPR4L3*W6*H10
C22
0.1uF
C22
0.1uF
TP27TP27
C391
1nF
C391
1nF
12
+
C19
100uF/16V
+
C19
100uF/16V
VI
I
VO
O
ADJ
A
TAB
4
U3
AIC1117-3.3
U3
AIC1117-3.3
12
+
C43
100uF/16V
+
C43
100uF/16V
C38
470U/6.3V_TANT
C38
470U/6.3V_TANT
C25
10uF/10V
C25
10uF/10V
1
2
3
4
5
6
7
8
9
10
11
12
J15
HEADER_12X1/2.0
J15
HEADER_12X1/2.0
C34
0.1uF
C34
0.1uF
C734
0.1uF
C734
0.1uF
TP33TP33
+
C28
220uF/6.3V
+
C28
220uF/6.3V
1 2
SPR3L3*W6*H10 SPR3L3*W6*H10
+
C445
100uF/16V
+
C445
100uF/16V
C32
47U/25V-TANT
C32
47U/25V-TANT
+
C23
47uF/25V
+
C23
47uF/25V
C76
0.1uF
C76
0.1uF
C35
1nF
C35
1nF
A C
D4
B340A
D4
B340A
C40
10uF/16V
C40
10uF/16V
VIN
1
ON/OFF
5
GND
3
OUT
2
FB
4
GND
6
U11
G5595-33
U11
G5595-33
1 2
SPR2L3*W6*H10 SPR2L3*W6*H10
C434
0.1uF
C434
0.1uF
1 2
L2 33uHL2 33uH
+
C42
220uF/6.3V
+
C42
220uF/6.3V
+
C33
100uF/16V
+
C33
100uF/16V
A C
D5
B340A
D5
B340A
TP28TP28
1 2
SPR1L3*W6*H10 SPR1L3*W6*H10
R336
8.2K/1%
R336
8.2K/1%
VIN
1
ON/OFF
5
GND
3
OUT
2
FB
4
GND
6
U4
G5595-50
U4
G5595-50
TP54
12V_SYS
TP54
12V_SYS
+
C69
220uF/6.3V
+
C69
220uF/6.3V
TP43TP43
Model
Title
Date Rev:
ViewSonic Corporation
POWER_SYSTEM
68
ViewSonic Corporation Confidential - Do Not Copy PRO8100-1
7. Schematic Diagrams