Service manual

S-17
Figure S-6
Front End Power Supply Schematic Diagram (4 of 10)
035191
4.99K
R65
CURRENT
HIGH
TP22
0.1U
C59
Z5U
7343
C64
47U
10V
+
VCC
VDD
I85
10V
47U
C65
7343
+
7343
C63
47U
10V
+
I83
I82
RAW-5V
I80
I78
TP15
TP23
TP16
VFB
11.5K
R63
U14
FB
2
GND
7
6
GNDS
NFB
3
4
S/S
VC
1
VIN
5
VSW
8
LT1373S
8
51
4
3
6
7
2
C61
330P
36.5K
R66
R71
49.9
0.1U
C58
Z5U
Z5U
C12
0.1U
U8
2
GND1
3
GND2
6
GND3
7
GND4
VIN
8 1
VOUT
78L05D
18
7
6
3
2
20V
7343
22U
C69
+
R70
10.0K
Q5
2
1
3
2N3904S
2
3
1
Q4
2
1
3
2N3904S
1
3
2
VREF
5%
1.0
R69
-5V
+5.7V
7343
22U
C68
20V
+
VREF
+10V
7343
22U
C67
20V
+
182
R68
CR7
MBRS130
1
221
MBRS130
CR9
1221
VCC
49.9
R67
20V
C70
22U
7343
+
7343
22U
C66
20V
+
Z5U
C10
0.1U
CR10
1N914S
1331
0.1U
C11
Z5U
5%
C62
1000P
R64
49.9
I73
I76
I77
I79
RAW+10V
I81
VIN
I29
I84
C60
10U
16V
+
T1
LPE-4841
1
8
6
37
2
5
44
5
2
73
6
8
1
MBRS130
CR8
12 12
I75
VSW
I41
TP28