Read Sharp SD-EX200 (serv.man12) Service Manual online
– 15 –
SD-EX200H
Figure 15 BLOCK DIAGRAM (4/6)
D938
D908
D942
D937
D930
ZD933
IC931
SE-B2
2
IC933
KIA7809AP
3
1
IC934
KIA78L05
3
1
D944
D939
B1900
PC902
BI932
D901
IC901
STRF6267
5
2
1
D902
T903
SUB POWER TRANSFORMER
D950
D953
D951
D952
L902
AC LINE
FILTER
AC POWER
SUPPLY CORD
L901
AC LINE
FILTER
F901
CNP901
CNS901
T901
MAIN POWER TRANSFORMER
CNP934
ZD931
CNP931
PC901
2
2
1
3
3
4
1
3
POWER
+B_CHK
Q931
-VP
-VF1
-VF2
Q933
+40V
+40V
DRIVER_+9V
A_–20V
VOLTAGE
REGULATOR
A_+5V
D_+5V
AMP.
ERROR
REGULATOR
VOLTAGE
SWITCHING REGULATOR
Q902
A_+20V
A_+20V
D5.6V (UNSW)
SUB TRAN +B
TO DISPLAY SECTION
TO 1-BIT AMP. SECTION
TO 11BIT AMP. SECTION
TO MAIN SECTION
FB/SYNC
Drain
T3.15A L 250V
SYNC
OCP
GND
Vin
1
4
3
2
1
3
2
4
1
3
2
4
1
8
7
6
5
4
2
9
10
2
3
4
5
6
7
8
9
10
3
5
4
2
11
AC 230V, 50 Hz
1
2
1
2
SWITCHING
VOLTAGE
REGULATOR
SWITCHING
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