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Schematic Diagram / Wiring Side Of P.w.board - Sharp WF-930Z(BK) Service Manual

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WF-930Z
A
FM/SW
ROD ANTENNA
BAND
SELCTOR
SW1G
D1
1N4148
B
C
MW/SW1
BAR ANTENNA
J102
L-CH
CD/LINE
R-CH
D
J101
MIXING
MICROPHONE
MIC101
BUILT-IN
MICROPHONE
E
TAPE2
PLAYBACK HEAD
CNS101
CNP102
1
1
L-CH
2
2
3
3
R-CH
RECORD/PLAYBACK
CNS103
CNP104
HEAD
1
1
2
2
L-CH
3
3
4
4
F
R-CH
ERASE
HEAD
TAPE1
G
MAIN PWB-A1
VOLUME PWB-A2
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
1
FM BAND PASS
FILTER
BPF1
1 2 3
FM
C1
MW
10P
(CH)
SW1
C2
SW2
0.001
SW1 : BAND SELECTOR
L5
SW1C
SW2
SW2
SW1H
SW1
SW1
MW
MW
SW2
FM
FM
ANTENNA
FM
SW1D
MW
L4
SW1
SW2
VC7
SW1
ANTENNA
C36
TC7
L3
5P
C11
(CH)
5P
(CH)
C10
5P
(CH)
FT1
FINE TUNING
R150
47K
R151
47K
R152
2.2K
R140
1K
C142
0.018
(ML)
R141
4.7K
HI-SPEED DUBBING : (
C141
1/50
MIC REC : <
R138
1K
SW101 : RECORD/PLAYBACK
SW102
BEAT
CANCEL
C128
330P
2
Figure 8 SCHEMATIC DIAGRAM (1/2)
RF AMP.
MIX
GND
1
2
3
4
5
6
7
C4
C7
5P
3P
(CH)
(CH)
R2
33
C8
FM IF
15P
T1
(CH)
C3
20P
(CH)
C41
C44
C5
R1
0.02
0.02
0.05
100
+B
R7
SW2
SW1F
47
SW1
C15
SW2
MW
0.0047
OSC.
(styrol)
L8
FM
C14
0.0015
FM
(Styrol)
SW1B
MW
SW1
SW2
SW1
OSC.
VC8
C13
L6
300P
MW
OSC.
TC8
C18
0.02
C16
C37
C43
10P
5P
0.02
(CH)
(CH)
SW101F
RECORD/
PLAYBACK
MIC AMP.
R153
R142
R145
Q101
2.2K
330K
4.7K
9014 C
MIC
C144
2.2V
MUTING
C148
1/50
C146
47/10
0.7V
Q102
1/50
9014 C
SW103 :
0.1V
(0V)
R147
DUBBING SPEED
10K
/MIC
(0.7V)
HIGH/
C145
MIC OFF
(0V)
220P
R146
C143
0.001
10K
OFF/MIC ON
)
R136
>
R134
4.7K
10K
C140
Q103
9014 C
10/25
<0.7V>
LINE AMO.
R137
R123
C121
8.2K
1.2K
130P
R101
L101
22mH
C107
0.033
(ML)
24
23
CH2
CH2
/A
/B
R
P R
P
CH1
CH1
SW101D
SW101C
/A
/B
SW101B
SW101A
1
2
R
P R
P
C108
C125
C126
0.033
(ML)
150P
150P
L102
R102
22mH
R124
BIAS
1.2K
OSC.
L105
BIAS
OSC.
R125
C
B
A
27K
0.6V
C131
C130
0.0082
0.02
(ML)
C132
0.012
(ML)
3
4
– 8 –
L1
fL
FM
TRACKING
IC1
OSC
TA7378P
L2
FM FRONT END
fL
VCC
FM BAND
8
9
COVERAGE
R3
FM IF
220K
CF1
10.7MHz
3
1
R4
47
2
C39
C9
0.001
0.02
R5
C19
100
0.02
SW2
SW1
MW
FM
24
23
22
AM
AM
SW1A
RF
OSC
BAND
SELECTOR
FM IF
AM
R6
SW1E
IN
MIX
47
FM
1
2
3
MW
L7
SW1
C30
SW2
0.04
C27
1/50
C28
C29
T3
100/10
0.02
AM IF
+B
R8
100
D4
1N4148
P
R
R148
220
+B
SW103B
C42
D105
D5
1N4148
4.7/50
1N4148
NORMAL
D6
R159
1N4148
22K
D101
R149
1N4148
4.7K
D104
<0V>
1N4148
C149
10/25
<0V>
R109
R161
R113
22K
56
68K
2.2K
R103
180K
R111
180K
R107
4.7K
21
20
22
19
18
17
16
NF MATAL
PRE
A/B
VCC
REC
OUT
OUT
OUT
IC101
PRE AMP.
TA8189N
MATAL
PRE
MIX
REC
GND1
NF
OUT
OUT
OUT
M/N
OUT
4
6
3
5
7
8
9
R104
180K
C135
R129
R112
R106
22/16
10K
180K
5.6K
R108
R130
4.7K
10K
R114
R162
2.2K
R110
68K
22K
56
+B
R131
10K
R132
220
R
4.6V
R127
100
0.4V
P
R128
100
SW101 : RECORD/PLAYBACK
HI-SPEED DUBBING : (
)
NORMAL SPEED : OTHER
5
TC5
L3
TC7
L4
TC2
fH
fL
fH
fL
fH
SW1
SW2
MW
TRACKING
TRACKING
TRA
TC6
L6
TC8
L7
TC4
fH
fL
fH
fL
fH
SW2
MW BAND
SW1 BAND
COVERAGE
COVERAGE
COV
SW3
FM M
R10
C21
MONO
470K
0.04
+B
FM DET
C22
C20
R1
470P
T2
0.0039
100
(ML)
R11
22K
R9
3.9K
21
20
19
18
17
16
15
AM
FM
MPX
VCC
IC2
DET
DET
IN
LA1805
OUT
AMP. & FM MPX.
AM
GND
GND GND
L-CH R-CH
IF
4
5
6
7
8
9
10
+B
R1
10
3
1
R1
10
2
STAND-
POWE
+
+B
R510
D503
22K
1N4148
+B
R154
C150
100
22/16
C153
0.001
R155
330K
C117
0.015
R115
L103
R119
(ML)
2.7mH
47K
220
C119
4.7/50
+B
C151
C155
330P
0.01
15
14
13
REC
ALC
REC
NF
IN
R158
REC
REC
GND
NF
IN
22K
10
11
12
C156
C152
0.01
330P
C120
4.7/50
R116
L104
R120
C118
220
2.7mH
47K
0.015
(ML)
C154
0.001
+B
VOLTAGE
REGULATOR
Q501
D501
STA
SW401B
8050 D
1N4148
RAD
7.6V
12V
POW
R501
680
8.2V
C504
R502
0.02
R
100
1
D502
(10.2V)
MTZJ8.2C
0V
Q502
(0V)
9014 C
(0V)
0.7V
(0.7V)
0.7V
0
0V
Q503
(
9014 C
R503
0V
10K
(0V)
C505
0.02
+B
Q502, Q503 : SWITCHING
6

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