Sharp QT-CD111 Service Manual page 13

IC2
PIN PIN
NO. VOLTAGE VOLTAGE
NO.
1 1.6V 13 1.2V (0V)
2 1.6V 14 1.9V (1.6V)
6V (6.3V) 1V (1.3V)
3 15
4 0.2V (0.7V) 16 1.7V
5 1.6V 17 1.5V (1.7V)
O
6 0V 18 1.5V (1.5V)
7 0V 19 0.4V (0.4V)
8 0V 20 6.1V (6.4V)
9 2.5V 21 6.1V (6.4V)
2.5V 1.6V
10 22
11 5.1V (6.6V) 23 1.6V
PX VCO
12 0.8V (1V) 24 1.6V
76kHz
( ): AM
SW102-G
P
R
R351
330
1
Q351
C8050D
<3V>
150 47K
R353
R352 <0.7V>
C353
<0.1V>
0.022
C352
R354
(ML)
220/16
10
7
FM SIGNAL
AM SIGNAL
X-BASS
C213
0.039
R215
(ML)
2.2K
C215
R217
0.039
22K
(ML)
SW202-A
R219
3.3K
R220
3.3K
SW202-B
R218
22K
R216
C214
2.2K
0.039
(ML)
+B
CD
FM AUTO
AM
TAPE IC203
KIA7808P
SW201-C
VOLTAGE REGULATOR
11.83V
1
3 OUT IN
8V
C302
C301
2
0V
0.022 0.022
IC101
PIN
VOLTAGE
NO.
1 <0V> [3.23V]
<0V> [0V]
2
3 <0.6V> [0.6V]
4 <0V> [0V]
5 <0V> [0V]
<0V> [0V]
6
7 <0V> [0V]
8 <7.43V> [7.43V]
9 <0V> [0V]
10 <7.37V> [7.37V]
11 <0.6V> [0.6V]
12 <3.3V> [3.3V]
< >: Recording
[ ]: Play
8 9
Figure 13 SCHEMATIC DIAGRAM (4/4)
CD SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
C219
0.047
R221 C221
(ML)
1K 0.001
2
+
–
1
C223
100/10
VOLUME
4
C224
100/10
7
C225
220/25
3
–
+
6
C220
R222
5
0.047
1K
C222
(ML)
0.001
D201
1N4148
+B
TERMINAL PWB-A3
SW201-D
+B
CD
1 1
FM AUTO
2 2
AM
TAPE
+B
DC12V["D"size(UM/SUM-1,
R20 or HP2)battery x 8]
R230
2.7
+B
+B
10
– 13 –
QT-CD111/111C
MAIN PWB-A1(1/2)
IC202
PIN
NO. VOLTAGE
0.1V
1
2 0V
3 11.2V
4 0V
5 11.3V
6 0V
7 0.1V
8 12V
9 10.4V
10 5.8V
11 0V
5.8V
12
13 10.4V
12
C233
470/10
C231
13
0.1
(ML) 1
1
11 2 2
3 3
C232
0.1
9
(ML)
10
8 C234
470/10
C227
3300/25
T601
POWER TRANSFOMER
+B
BATTERYS
SW601
(241-7)
MAIN
+ M601
(241-6)
M
TAPE
MOTOR
–
11 12
SPEAKERS
SP501
SP502
SO651
AC INPUT