33
33
HCD-DZ820KW
HCD-DZ820KW
6-6. BLOCK DIAGRAM – POWER SECTION –
F1
F2
VFL
TO FLUORESCENT
INDICATOR TUBE
T801
DC/DC
CONVERTER
D801,802
D804,805
Q801
IC501 (4/4)
SYSTEM CONTROLLER
Q503
D943
D942
D944
D941
D922
D910
Q921
T902
TRANSFORMER (SUB)
T901
TRANSFORMER(MAIN)
PC902
D931
D905
Q943,947
PC901
PC903
D901
E4V
E 4V
+3.3V
+31.5V
AC IN
SW+3.3V,+3.3V
A+5V
REG
+6V
SW+9V
VOLTAGE
DETECT
Q901
VOLTAGE
CONTROLLER
Q945
MOTOR DRIVE
CONTROLLER
+3.3V
+5V
+2.5V
A9V
+9V
A12V
+1.8V
+1.8V
+1.2V
+2.6V
Q504
5V SW
+3.3V
+1.8V
SW +5V
RECT
OSC
D3.3V
RF+3.3V
F901
POWER
Thermistor
LINE
FILTER
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