Sony RDR-GX300 Service Manual page 81

1 2
RD-50 BOARD(19/19)
POWER
A
-REF.NO.:20000 SERIES-
CN1801 15P
UNSW6V 1
AGND 2
AGND 3
UNSW3.3V 4
B
SW2.5V 5
TO SW2.5V 6
JL1809
SWITCHING REGULATOR
DGND 7
CN2
(SEE PAGE 4-68) DGND 8
SW3.3V 9
SW3.3V 10
SW3.3V 11
SW3.3V 12
C
DGND 13
P_CONT 14
DGND 15
JL1812
JL1801
D
E
F
16
3 4 5
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
FL1801
B+ JL1802 JL1813 FB1801
B+ JL1803 JL1814
FL1802
FB1802
B+ JL1804 JL1815
FL1803
FB1803
B+ JL1805 JL1818
B+ JL1806 JL1819
FL1804
FB1804
FL1805
FB1805
4-65
6 7 8
R5.9
P1.0
B+
UNSW5V
D1801
EC10DA40-TE12
C1810
C1807
R1818
33u 10u
1k
16V
10V
IC1803
1.5V REG
IC1803
PQ015EZ01ZPH 1.5
6
OUT
1 2 3 4 5
R1841
0
R1810
B+ UNSW1.5V
470
C1815
C1805
R1804
22u 47u
1k
4V
6.3V
C1806
B+
UNSW3.3V
B+
SW3.3V
9 10
IC1804
5V REG
5.0
4 5
B+
SW3.3V
B+
SW3.3V
B+
SW2.5V
3 2 1
B+
B+
SW5V SW3.3V
B+
SW1.8V
C1812
C1813
0.1u
33u
B
10V
B+
SW5V
IC1802 B+
SW3.3V
B+
SW1.8V
1.8V REG
IC1802
PQ018EH02ZPH
1.8
B+
UNSW3.3V
6
B+
1 2 3 4 5
UNSW5V
B+
UNSW3.3V
B+
UNSW1.5V
B+
SW3.3V
SW1.8V
B+
B+
UNSW3.3V
B+
SW3.3V
C1816
C1811
23u 47u
100u
6.3V 4V
6.3V
B+
SW2.5V
4-66
RDR-GX300
11 12
SW3.3V
TO(1/19,2/19,
10
9/19,10/19,
DGND
14/19,18/19)
SW3.3V
SW2.5V 31
TO(4/19,5/19)
DGND
SW3.3V
22
SW1.8V
TO(6/19)
DGND
SW5V
SW3.3V
42
TO(8/19)
SW1.8V
DGND
UNSW3.3V
46
TO(11/19,16/19)
DGND
UNSW5V
UNSW3.3V
60
UNSW1.5V
TO(12/19)
SW3.3V
DGND
UNSW3.3V
SW3.3V 64
TO(15/19,17/19)
DGND
P_CONT 9
TO(12/19,17/19)
POWER
RD-50 (19/19)