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17.3. Sub Power Supply Section (Main P.C.B. (1/5)) Schematic Diagram (P)
G
T
JC P ON
H
F
T
POWER ON
H
TO P102
RAM DRIVE UNIT
P1501
DR12V
1
GND
2
GND
3
DR5V
4
E
DR5V
5
GND
6
GND
7
DR12V
8
TO PS102
POWER P.C.B.
P1502
1
X SW13V
2
X SW5.8V
3
X SW5.8V
4
GND
5
6
GND
7
GND
8
D
GND
9
DR P ON
H
10
11
DR12V
12
DR12V
13
DRGND
14
DRGND
15
DR5V
16
DR5V
17
POWER ON
H
18
D3.3V
19
D3.3V
20
D1.8V
21
D1.8V
22
HDD PFAIL
23
C
T
HDD PFAIL
T
DR P ON
H
A
T
X SW 5.2V
B
A
1
C1503
1
R1502
3300
R1501
C1512
8200
1
LB1501
J0JHC0000032
LB1503
J0JHC0000032
C1513
1
LB1504
J0JKB0000003
IC1505
LB1505
C0CBCDD00008
J0JKB0000003
(REG.XSW+5.2V)
2
3
IC1502
C0DBAHG00013
(REG.JC+5V)
IC
1
2
3
4
5
C1504
C1505
0.1
10V47
D1501
R1503
MA2C165001VT
100
8
7
6
DRIVER
BIAS
CURRENT
THERMAL
LIMITTER
SHUTDOWN
REFERENCE
1
2
3
C1514
C1515
1
0.1
4
C1516
1
5
IC1506
C0CBCDD00002
(REG.ANA+5V)
1
C1519
0.1
C1520
1
5
IC1507
C0CBCDD00006
(REG.D+5V)
4
C1539
C1541
C1543
R1516
C1540
6V
10V
25V
270
25V47
1000
470
220
5
C151
10V4
4
IC
2
3
8
REFE
1
C1521
1
6
51
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