Block Diagram - Power Section - Sony HCD-DZ770W Service Manual

HCD-DZ770W
Q Q
6-5. BLOCK DIAGRAM – POWER SECTION –
3 7 6 3 1 5 1 5 0
CONVERTER
F1
F2
TO FLUORESCENT
RECT
INDICATOR TUBE
VFL
D801,802
D804,805
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC509 (4/4)
SYSTEM CONTROLLER
P CONT2 44
P CONT1 40
AC_CUT 20
Q506
RESET 12
w w w
HCD-DZ770W
+31.5V
DC/DC
T801
+5V
OSC
Q801
+9V
+5V
+3.3V
RF +3.3V
+1.8V
+1.8V
+2.5V
IC511
1
2
RESET
x a o
y
. i
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T901
TRANSFORMER(MAIN)
D931
IC931
VOLTAGE
DETECT
PC901
PHOTO
COUPLER
E4V
PC903
Q943,947
PHOTO
VOLTAGE
COUPLER
DETECT
+12V
IC515 IC941
+9V REG +12V REG
M -8V
Q945
IC516
Q Q MOTER DRIVE
+5V REG 3 7 6
CONTROLLER
+5V
IC105
+3.3V REG
+6V
IC107 IC942
+3.3V REG +5V REG
E 4V
+3.3V
IC106 IC943
+1.8V REG +3.3V REG
IC951
IC303
VOLTAGE
+1.8V REG
DETECT
IC508
+2.5V REG
u 1 6 3
26 26
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2 4
8 9 9
IC901
3
D
POWER
PROTECTION
D905
Q901
4
VOLTAGE VCC
CONTROLLER
FB/OLP
5
T902
TRANSFORMER (SUB)
D941
STARTUP
8
IC921
Q921
POWER
D922
PROTECTION
REG 4
VCC
FB/OLP
D944
6
3 1 5 1 5 0 8 9 2
D942
D943
PC902
PHOTO
COUPLER
m
c o
.
2
8 9 9
D901
AC IN
4 9 8 2 9 9