Sony RDR-GX300 Service Manual page 84

RDR-GX300/GX700
Q Q
3 7 6 3 1 5 1 5 0
1 2
RD-50 BOARD(19/22)
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 4-78) 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
T E
L 1 3 9 4 2 2 9 6 5 1 3
E
F
16
w w w
POWER
RD-50 (19/22)
3 4 5
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
FB1801
FL1801
EC10DA40-TE12
B+ JL1802 JL1813 0uH
B+ JL1803 JL1814
FB1802
FL1802
B+ JL1804 JL1815 0uH
FB1803
FL1803
B+ JL1805 JL1818 0uH
B+ JL1806 JL1819
FB1804
FL1804
0uH
FB1805
FL1805
0uH
x a o
y
. i
4-67
http://www.xiaoyu163.com
6 7 8
D1801
B+
UNSW5V
C1807
R1818
10u
1k
16V
IC1803
1.5V REG
IC1803
PQ015EZ01ZPH 1.5
6
OUT
1 2 3 4 5
Q Q
3 7 6
R1810
B+ UNSW1.5V
470
C1815
C1805
R1804
47u
22u 1k
4V
6.3V
B+
UNSW3.3V
B+
SW3.3V
u 1 6 3
http://www.xiaoyu163.com
2 4
8 9 9
9 10
IC1804
5V REG
5.8 5.0
4 5
SW3.3V
3 2 1
SW3.3V
B+
SW5V
SW2.5V
C1810 C1812
C1813
0.1u
10u
10u
16V B
16V
SW3.3V
SW1.8V
IC1802
1.8V REG
SW5V
IC1802
PQ018EH02ZPH
1.8 SW3.3V
SW1.8V
6
UNSW3.3V
1 2 3 4 5
UNSW5V
UNSW3.3V
3 1 5 1 5 0 8 9
UNSW1.5V
SW3.3V
SW1.8V
B+
UNSW3.3V
SW3.3V
C1806 C1816
C1811
22u 47u
100u
6.3V 4V
6.3V
B+
SW2.5V
m
c o
.
4-68
2
8 9 9
11 12
B+
SW3.3V
TO(1/22,2/22,3/22,
10
9/22,10/22,14/22,
DGND
18/22,21/22,22/22)
B+
SW3.3V
B+
SW2.5V 31
TO(4/22,5/22,20/22)
DGND
B+
SW3.3V
B+
22
SW1.8V
TO(6/22)
DGND
B+
SW5V
B+
SW3.3V
B+ 42
TO(8/22)
SW1.8V
DGND
B+
UNSW3.3V
46
TO(11/22,16/22)
DGND
B+
UNSW5V
B+
UNSW3.3V
2 4 9 8 2 9 9
B+
60
UNSW1.5V
TO(12/22)
B+
SW3.3V
DGND
B+
UNSW3.3V
B+
SW3.3V 64
TO(15/22,17/22)
DGND
P_CONT 9
TO(12/22,17/22)