Block Diagram - Power Section - Sony hcd-dz230 Service Manual

HCD-DZ230/DZ231/HDZ235
Q Q
6-5. BLOCK DIAGRAM – POWER SECTION –
3 7 6 3 1 5 1 5 0
T801
DC/DC
CONVERTER
TO FLUORESCENT
F1
INDICATOR TUBE
F2
RECT
VFL
D801,802
D804,805
AMP
P CONT2
E
SECTION
(Page 33)
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC501 (5/5)
SYSTEM CONTROLLER
P CONT2 40
P CONT3 41
P CONT1 39
AC_CUT 20
Q503
RESET 12
SWITCH
w w w
HCD-DZ230/DZ231/HDZ235
+31.5V
OSC
Q801
Q943,947
VOLTAGE
DETECT
A12V
IC307
+9V +9V REG
(DZ230,DZ231) (HDZ235)
SW+9V
IC1707
+5V
+5V REG
+5V
IC1105
+3.3V
+3.3V REG
SW +5V
IC1107
RF +3.3V
+3.3V REG
IC1703
+3.3V
+3.3V REG
+1.8V
SW+3.3V
E3.3V
D502
BUP3.3V
+1.8V
D504
+1.8V
IC503
RESET
x a o
y
. i
http://www.xiaoyu163.com
T901
TRANSFORMER(MAIN)
D931
D905
IC931
VOLTAGE
DETECT
PC901
PHOTO
COUPLER
E4V
PC903
PHOTO
COUPLER
D941
IC941
+12V REG
Q945
D944
MOTOR DRIVE
CONTROLLER
+6V
Q Q
IC504 3 7 6
+5V REG
DZ230,DZ231
VBUS
IC201
+5V REG
+5V
Q504 IC942
5V SW +5V REG
E 4V
IC502
+3.3V
+3.3V REG
D943
IC1110 IC943
+1.8V REG +3.3V REG
IC3050
IC951
+1.8V REG
VOLTAGE
DETECT
IC1702
+1.8V REG
u 1 6 3
34 34
http://www.xiaoyu163.com
2 4
8 9 9
D901
IC901
3 D
POWER
PROTECTION
Q901
4
VOLTAGE VCC
CONTROLLER
1 OCP/SYNC
5
FB/OLP
D910
T902
TRANSFORMER (SUB)
1 DRAIN
IC921
POWER
Q921
D922
PROTECTION
4
REG VCC
8
START_UP
FB/OLP
6
3 1 5 1 5 0 8 9 2
D942
PC902
PHOTO
COUPLER
m
c o
.
2
8 9 9
POWER
Thermistor
F901
AC IN
LINE
FILTER
4 9 8 2 9 9