Power Block Diagram (3/3); Q Q - Sony RDR-GX300 Service Manual

RDR-GX300/GX700

Q Q

3 7 6 3 1 5 1 5 0
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w

3-6. POWER BLOCK DIAGRAM (3/3)

SWITCHING REGULATOR(POWER BLOCK)
L
1
AC IN
N
2
CN101
AC INLET
x a o
y
. i
3-11
http://www.xiaoyu163.com
F101
T3.15A/250V
D101-104
T101
POWER
D301
TRANSFORMER
L101,102
D401
1
D451
4
L103
IC101
5
D501
SWITCHING 7
6
D601
PC101(2/2)
PHOTO COUPLER
Q Q
3 7 6
u 1 6 3
.
http://www.xiaoyu163.com
2 4
8 9 9
P301 1A
Q303 Q301
L301
12V REG SW 12V REG
IC301
Q302
SHUNT REG
IC402
5V REG
PC101(1/2) L401
PHOTO 1 2
L501
COUPLER
4
VR401
IC401
P401 2A
SHUNT REG
Q451
SWITCH
P501 2.5A
Q501
SW 3.3V
REG
IC501
SHUNT REG
VR501
IC503
1
VIN
4
SW2.5V REG
UNSW 3.3V
REG
IC502
P601 1A
L601
UNSW3.3V REG
3 1 5 1 5 0 8 9 2
m
c o
3-12E
2
8 9 9
CN4
TO
SW12V
1
HDD&DVD
SW5V
4
CN3
8 SW12V
UNSW12V
10
5
UNSW6.0V
6
TO
AV-84 BOARD
XP_FILE
13
SW3.3V
4
2 UNSW3.3V
12 USW-8V
1 UNSW12V
5
SW2.5V
VOUT 2
6
TO
4 UNSW3.3V
RD-50 BOARD
9
SW3.3V
12
P-CCONT
14
CN2
4 9 8 2 9 9