Block Diagram (4) - Sony KF-WE50A1 Service Manual

KF-WE42A1/WE50A1/WS60A1
RM-1022 RM-1022 RM-1022

BLOCK DIAGRAM (4)

WE42/WE50
CHOKE
CN1609
COIL
CHOKE IN 3
CHOKE OUT 1
D1611
WS60 DUBLER
RECTIFIER
CN1601
AC(L) 1
F
4
AC(N)
TO F BOARD
CN1909
CN1604
AC ON
8
DTL 5V 7
PROT 6
DTL 9V 5
G
GND 4
TO F BOARD
STBY 5V 3
CN1908
GND 2
AC RLY (-) 1
IC1606
SWITCHING REGULATOR
Q1614
VG(H) 16
SWITCHING
VS 15
Q1613
VG(L) 12
SWITCHING
OCP 9
R1670
D1626
1 V SENSE
VCI 8
PH1603
D1619
F/B
2
– 29 –
D1645
T1601
PIT
R1754
18
D1635
Q1620,D1647
+33V
17
REGULATOR
D1641
16
D1629
IC1609
15
+9V REG.
D1633
D1631
I
14
13
IC1608
12
D1630 +5V REG.
D1634
11
I
1
10
2
D1640
4
3
9
8
IC1607
SHUNT
REGULATOR
3 K R 1
A
2
Q1615
RELAY DRIVER
Q1616,1617
PROTECT
D1625
3
1
SET 17V
C28
C27
C26
SET 9V
O
C25
C24
SET 11V
C23
C22
C21
C20
SET 5V
O
C19
C18
SET 6V
C17
DD 6V
C16
C15
C14
C13
C12
C11
C9
C8
C7
C6
NC C5
C4
C3
C2
1
2
G1 (SWITCHING REGULATOR)
– 30 –
CN1602
TO
LAMP GND
LAMP
LAMP DC
DRIVER
CN1605
SET 17V
SET 17V
SET 5V
SET 5V
SET 5V
SET 11V
SET 11V
SET 11V
SET 11V
DD 6V
DD 6V
DD 6V
DD 6V
SET 6V
G
SET 6V
TO G2 BOARD
CN6005
SET 9V
SET 9V
SET 9V
TU 33V
STBY 5V
AC-RLY (–)
AC-RLY (+)
MAIN-CTL
POW-CTL
LOWB-DET
MS3.3V OVP
CN1603
AU 18V
H
AU-GND
TO KD BOARD
CN4705