Sony HCD-DZ20 - Block Diagram - POWER Section

3030
HCD-DZ20
HCD-DZ20
6-5. BLOCK DIAGRAM – POWER SECTION –
F1
F2
VFL
TO FLUORESCENT
INDICATOR TUBE
DC/DC
CONVERTER
T801
IC511
RESET
RECT
D801,802
D804,805
OSC
Q801
12RESET
20AC_CUT
40P CONT2
IC501 (4/4)
SYSTEM CONTROLLER
+5V
39P CONT1
IC941
+12V REG
IC931
VOLTAGE
DETECT
IC515
+9V REG
D943
D942
D944
D941
D922
Q921
IC921
SWITCHING
REGULATOR
T902
TRANSFORMER (SUB)
T901
TRANSFORMER(MAIN)
PC902
41P CONT3
PHOTO
COUPLER
D931
D905
Q943,947
PC901
PC903
D901
E4V
E 4V
RF +3.3V
+21.7V
IC901
SWITCHING
REGULATOR
AC IN
SW3.3V
+5V
PHOTO
COUPLER
PHOTO
COUPLER
REG
IC1107
+3.3V REG
IC1105
+3.3V REG
IC942
+5V REG
IC943
+3.3V REG
IC951
VOLTAGE
DETECT
IC1109
+1.8V REG
IC3050
+1.8V REG
M +9V
SW+5V
VOLTAGE
DETECT
Q901
VOLTAGE
CONTROLLER
Q945
MOTOR DRIVE
CONTROLLER
+3.3V
IC516
+5V REG
A5V
A9V
+12V
+1.8V
+1.8V
Q506
SWITCH
+12V
E 4V
Q502, 503
SW +5V
SWITCH
FL +3.3V
IC502
+3.3V REG
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com