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Sharp WF-930Z(BK) Service Manual page 9

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TC2
TC1
L5
fH
fH
fL
SW2
SW2
NG
TRACKING
TRACKING
TC4
TC3
L8
fH
fH
fL
SW2 BAND
AND
SW2 BAND
AGE
COVERAGE
COVERAGE
SW301
FM MODE
MONO
STEREO
K
+B
C26
VCO
R12
0.0015
100K
VR1
(Styrol)
10K (B)
R13
1.5K
16
15
14
13
MPX
VCO
IN
L-CH R-CH
9
10
11
12
R14
1K
C35
R15
4.7/50
10K
R16
C34
10K
4.7/50
STAND-BY/TAPE
RADIO
POWER ON/CD
SW401A
FUNCTION
+B
+B
+B
STAND-BY
SW401D
/TAPE
R119
RADIO
47K
POWER ON
+B
/CD
R117
C155
22K
0.01
SW401 :
FUNCTION
SELECTOR
STAND-BY
SW401C
/TAPE
R158
22K
RADIO
C156
POWER ON/CD
0.01
R118
22K
R120
47K
+B
STAND-BY/TAPE
W401B
+B
RADIO
POWER ON/CD
501
C506
80
100/25
L501
504
22µH
02
R505
10K
10.9V
10.3V
(10.8V)
(10.3V)
Q504
(10.2V)
0V
8555 D
R506
(0V)
100K
10.9V
(6.9V)
0.7V
0V
Q503
(0V)
VR501
R509
9014 C
R507
2.2K (B)
56K
6.8K
C505
TAPE
0.02
SPEED
R508
470
Q504 : MOTOR CONTROL
HING
7
PIN
NO.
1
2
3
4
LED PWB-A3
5
6
7
1
D522
8
L-34HD
1
1
9
POWER/BATT.
2
2
3
3
D521
4
4
L-34HD
4
FM STEREO
GRAPHIC EQUALIZER PWB-B
C258
0.022
R252
(ML)
1K
R253
C253
2.2K
4.7/50
+B
C251
+B
4.7/50
23
21
19
24
22
20
C252
4.7/50
C254
R254
4.7/50
2.2K
R251
C257
1K
0.022
VR251A
(ML)
50K (B)
10kHz
GRAPHIC EQUALIZER
6
1
1 CNS251
6
5
4
3
2
CNP201
4
3
2
1
6
5
MIC REC : <
VOLUME
Q401, Q402 : MUTING
C401
0.001
+B
(ML)
R403
1K
C403
0.15
(ML)
R405
0V
1K
Q401
R401
9014 C
<0.7V>
2.7K
0V
0V
<0.7V>
R402
Q402
2.7K
9014 C
R406
1K
0V
C404
0.15
(ML)
VR401B
R404
C402
0.001
50K(B)
1K
(ML)
VOLUME
POWER PWB-A4
1
1
1
2
2
C601
C603
2
0.02
0.02
D603
1N5392
D604
1N5392
C602
C604
0.02
0.02
SW503
CNS502
TAPE2 PLAY
1
1
SW502
TAPE1 MAIN
2
2
+
3
3
M501
4
4
M
B
TAPE
5
5
MOTOR
A
6
6
7
7
SW501
TAPE2 MAIN
8
8
8
9
Figure 9 SCHEMATIC DIAGRAM (2/2)
IC1
IC2
PIN
PIN
VOLTAGE
VOLTAGE
VOLTAGE
VOLTAGE
NO.
FM
AM
NO.
1
13
0.7V
1.6V
1.7V
1.1V
2
14
1.4V
1.6V
1.7V
1.7V
3
15
4.9V
5.1V
6.2V
1.7V
4
16
1.4V
1.4V
0.7V
1.7V
5
17
1.5V
0V
1.6V
1.7V
6
18
5V
0V
0V
1.6V
7
19
1.4V
5.6V
5.7V
0.4V
8
20
4.9V
5.5V
0V
0V
9
21
4.8V
2.3V
2.3V
5.3V
22
10
2.3V
2.3V
0.6V
11
23
4.6V
6.2V
1.6V
12
24
0.9V
0.9V
1.5V
GRAPHIC EQUALIZER
10kHz
3.3kHz
1kHz
330Hz
VR251B
VR252A
VR253A
VR254A
50K (B)
50K (B)
50K (B)
50K (B)
C261
C265
C269
0.033
0.1
0.33/50
(ML)
(ML)
C267
C259
0.01
0.001
(ML)
(ML)
9
17
15
13
11
7
5
8
6
18
16
14
12
10
C268
0.01
(ML)
C266
C274
C270
0.1
1/50
0.33/50
(ML)
VR254B
VR253B
VR255B
50K (B)
50K (B)
50K (B)
X-BASS
330Hz
1kHz
GRAPHIC EQUALIZER
>
IC401
BA5415
POWER AMP.
C411
C405
100/16
4.7/50
5
3
C409
R407
100/10
4
2
NF
OUTPUT
33K
C417
47/25
7
FILTER
GND
12
C420
22/25
9
R408
NF
OUTPUT
11
33K
C410
100/10
8
10
C406
STAND
C412
-BY
VCC
4.7/50
100/16
6
1
C419
2200/25
BATTERIES
DC12V [ "D" size (UM/SUM-1,
R20 or HP2) battery x 8
AC220V – 240V
50/60Hz
AC110V – 127V
50/60Hz
0V
F601
T601
T1.25A
POWER
L 250V
TRANSFORMER
FM SIGNAL
MW/SW1/SW2 SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
10
– 9 –
MIC REC : <
>
HI-SPEED DUBBING : (
)
IC401
PIN
PIN
VOLTAGE
VOLTAGE
FM
AM
NO.
NO.
1
1
0V
12V
2
2
1.7V
5.9V
3
3
1.7V
9.9V
4
4
1.7V
0.6V
5
5
1.7V
0V
6
6
1.6V
12V
7
7
0.9V
10.8V
8
8
6.2V
0V
9
9
6.2V
0.6V
10
10
1.1V
9.9V
11
11
1.6V
5.9V
12
12
1.6V
0V
13
14
15
16
17
18
19
X-BASS
20
VR255A
21
50K (B)
22
23
24
C273
1/50
3
1
4
2
C262
0.033
(ML)
VR252B
50K (B)
3.3kHz
+
R-CH
C413
0.22
(ML)
L-CH
+
R415
J401
100
SPEAKERS
TERMINAL
J403
HEADPHONES
R416
100
C416
1000/16
C414
0.22
(ML)
SW601
VOLTAGE
SO601
SELECTOR
AC POWER INPUT
SOCKET
11
WF-930Z
IC101
IC251
PIN
VOLTAGE
VOLTAGE
NO.
1
0V
4.3V
2
0V
4.3V
3
1.2V
4.9V
4
1.3V
4.9V
5
1.4V
4.3V
6
1.3V
4.3V
7
0V
4.9V
8
0V
(3.5V)
4.9V
9
2V
4.3V
10
1.3V
4.3V
11
0V
4.9V
12
0V
4.9V
13
0.9V
4.3V
14
0V
4.3V
15
1.3V
4.9V
16
2V
4.9V
17
1.4V
3.2V
18
5.5V
2V
19
1.6V
<0V>
2V
20
1.4V
3.2V
21
1.3V
2.6V
22
1.2V
2.6V
23
0V
5.23V
24
0V
0V
SP703
TWEETER
R-CH
SPEAKERS
SP701
WOOFER
SP702
WOOFER
L-CH
SPEAKERS
SP704
TWEETER
12

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