Sharp WQ-730H (serv.man2) Service Manual ▷ View online
WQ-730H
– 13 –
Figure 13 SCHEMATIC DIAGRAM (2/2)
7
8
9
10
11
12
4.8V
4.9V
1.4V
5V
0V
1.4V
4.9V
1.4V
0.7V
5.9V
0V
5.9V
9.9V
0.6V
0V
10.8V
12V
0V
0.6V
9.9V
12V
0V
5.23V
2.6V
2.6V
3.2V
2V
2V
3.2V
4.9V
4.9V
4.3V
4.3V
4.9V
4.9V
4.3V
4.3V
4.9V
4.9V
4.3V
4.3V
4.9V
4.9V
4.3V
4.3V
0V
0V
1.2V
1.3V
1.4V
<0V>
1.6V
5.5V
1.4V
2V
1.3V
0V
0.9V
0V
0V
1.3V
2V
(3.5V)
0V
1.3V
1.4V
1.3V
1.2V
0V
0V
0V
1.6V
1.6V
1.1V
1.5V
1.6V
0.6V
6.2V
6.2V
0.9V
1.6V
0V
5.3V
5.5V
0.4V
1.6V
1.5V
1.7V
1.7V
1.7V
1.1V
1.7V
1.7V
1.7V
1.7V
0.9V
6.2V
2.3V
0.9V
4.6V
2.3V
0V
5.7V
0V
1.7V
0.7V
6.2V
2.3V
2.3V
0V
5.6V
0V
1.6V
1.4V
5.1V
1.6V
1.6V
1.7V
1.7V
MIC REC : < >
Q401, Q402 : MUTING
3V
6.1V
3V
3V
3V
0V
3V
3V
<0.7V>
<0.7V>
0V
0V
0V
0V
10.9V
(10.8V)
3V
V)
10.9V
(6.9V)
(6.9V)
R208
1K
VR205B
50K (B)
X-BASS
R207
1K
(N.P)
R-CH
L-CH
+
–
–
A
B
SW503
TAPE2 PLAY
SW502
TAPE1 MAIN
SW501
TAPE2 MAIN
M501
TAPE
MOTOR
M
8
7
6
5
4
3
2
CNS502
1
VOLUME
C232
0.0018
(ML)
C234
0.068
(ML)
C231
0.0018
(ML)
C233
0.068
(ML)
R233
5.6K
R234
5.6K
VR206B
50K (B)
R232
3.3K
R231
3.3K
VOLUME
VR206A
50K (B)
4
3
2
CNP505
1
4
3
2
CNS506
1
SW301 : SURROUND
ON
ON
ON
ON
OFF
OFF
OFF
OFF
C422
0.02
INPUT
INPUT
IC201
GRAPHIC EQUALIZER PWB-A2
SURROUND PWB-A5
LED PWB-A4
D522
L-34HD
FM STEREO
D521
L-34HD
POWER/BATT.
MW BAND
COVERAGE
TC8
L6
fL
fH
MW
TRACKING
TC7
L3
fL
fH
FM BAND
COVERAGE
TC6
L2
fL
fH
TC5
L1
fL
fH
FM
TRACKING
LW BAND
COVERAGE
TC4
L7
fL
fH
LW
TRACKING
TC2
L4
fL
fH
IC1
VOLTAGE
9
8
7
6
5
4
3
2
1
IC401
VOLTAGE
12
11
10
9
8
7
6
5
4
3
2
1
VOLTAGE
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PIN
NO.
PIN
NO.
IC101
VOLTAGE
PIN
NO.
PIN
NO.
PIN
NO.
24
23
22
21
20
19
18
17
16
15
14
13
VOLTAGE
12
11
10
9
8
7
6
5
4
3
2
1
IC2
VOLTAGE
AM
VOLTAGE
FM
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VOLTAGE
AM
VOLTAGE
FM
PIN
NO.
RECORD SIGNAL
PLAYBACK SIGNAL
MW/LW SIGNAL
FM SIGNAL
SP704
SURROUND
SP703
SURROUND
SPEAKERS
SPEAKERS
SP701
WOOFER
SP702
WOOFER
D301
SLR-56DU3F
SURROUND
R313
220
2.2/16
C702
C701
2.2/16
(N.P)
SW301D
SW301B
SW301B
SW301C
SW301A
SW301A
CNS702
1
2
3
4
CNS304
1
2
3
4
CNP701
1
2
3
4
C412
100/16
C411
100/16
C413
0.22 (ML)
C420
0.02
C421
0.02
CNP303
1
2
3
4
CNS204
1 2 3 4 5
CNP203
1 2 3 4 5
6 5 4 3 2
CNS202
1
+B
GRAPHIC EQUALIZER
3.3kHz
330Hz
1kHz
10kHz
1kHz
3.3kHz
330Hz
10kHz
GRAPHIC EQUALIZER
GRAPHIC EQUALIZER
R205 330
C201
4.7/50
R202
2.2K
C204
1/50
C208
0.022
(ML)
R204
1K
C202
4.7/50
C206 4.7/50
VR201B
50K (B)
C224
1/50
C220
0.33/50
C216
0.1
(ML)
C212
0.033
(*ML)
VR202B
50K (B)
VR203B
50K (B)
VR204B
50K (B)
C222 0.033 (ML)
C218
0.01
(ML)
C214 0.0033 (ML)
C210
0.001
(ML)
C225 100/10
R203
1K
R201
2.2K
C207
0.022
(ML)
C203
1/50
VR201A
50K (B)
VR205A
50K (B)
X-BASS
VR204A
50K (B)
VR202A
50K(B)
VR203A
50K (B)
C211
0.033
(ML)
C215
0.1
(ML)
C205 4.7/50
C219
0.33/50
C223
1/50
C209 0.001 (ML)
C213 0.0033 (ML)
C217 0.01 (ML)
C221 0.033 (ML)
IC201
BA3822LS GRAPHIC EQUALIZER
20
22
18
8
6
4
2
24
12
14
10
16
23
21
19
17
15
13
11
9
7
5
3
1
LED PWB-A3
R404
1K
POWER PWB-A6
C508 0.02
CNP503
2
CNS504
2
1
1
1
STAND-BY
/TAPE
POWER ON
RADIO
STAND-BY
/TAPE
POWER ON
/RADIO
SW401C
SW401D
TAPE
/CD
401B
CTION
O
IC301
(2/2)
IC301
(1/2)
IC301
BA4558N
OPE AMP.
R310
12K
R304
10K
R314
330
R302 100K
R301 100K
C302
0.0068 (ML)
C301
0.0068 (ML)
C304
10/25
C303
10/25
R303 10K
7
4
5
6
C312
47/10
C311
10/25
R312 10K
R311 10K
C310
1/50
C309
1/50
8
1
3
2
R308
12K
R306
2.7K
C308
4.7/50
C306
0.0033
(ML)
C307
4.7/50
R307
12K
C305
0.0033
(ML)
R305
2.7K
R309
12K
R416
100
J403
HEADPHONES
R415
100
C414
0.22
(ML)
STAND
-BY
VCC
NF
OUTPUT
NF
FILTER
GND
OUTPUT
IC401
BA5415
POWER AMP.
1
6
R403
1K
R414
1K
R413
1K
C416
1000/16
C415
1000/16
C419
2200/25
R406
1K
R405
1K
Q402
9014 C
Q401
9014 C
C405
4.7/50
C406
4.7/50
R408
33K
R407
33K
C408
0.001
C407 0.001
R410 180
C418
22/25
C417
47/25
R409 180
C409
100/10
C410
100/10
10
11
12
2
3
5
4
8
9
7
+B
+B
+B
+B
R510 56K
+B
AC220V-230V
50 Hz
BATTERIES
DC12V [ “D” size (UM/SUM-1,
R20 or HP-2) battery x 8]
DC12V [ “D” size (UM/SUM-1,
R20 or HP-2) battery x 8]
2
1
T601
POWER
TRANSFORMER
SO601
AC POWER INPUT
SOCKET
D604
1N5392
D602
1N5392
D601
1N5392
C602
0.02
C604
0.02
C601
0.02
C603
0.02
D603
1N5392
F601
T1.25A
L 250V
SW401 :
FUNCTION
SELECTOR
R181
22K
C29
0.0015
(S)
VCO
4 : MOTOR CONTROL
PE
ED
O
R14
820
R20 470
VR1
10K (B)
R17
2.7K
R18
2.7K
3
2
6 5 4 3 2
CNP201
1
R182
22K
8
7
6
5
4
3
2
CNP501
1
C507
100/25
R509
6.8K
R508
470
501
K (B)
Q504
8555 D
L501
22
µ
H
PIN
NO.
WQ-730H
– 14 –
Figure 14 WIRING SIDE OF P.W.BOARD (1/2)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
A
B
+
-
M501
TAPE
MOTOR
SW501
TAPE2
MAIN
SW502
TAPE1
MAIN
SW503
TAPE2
PLAY
CNS103
ERASE(67)
HERAD
TAPE1
RECORD/PLAYBACK(66)
HEAD
RECORD/PLAYBACK(65)
HEAD
TAPE2
T601
POWER
TRANSFORMER
AC220V-230V
50Hz
SO601
AC POWER INPUT
SOCKET
BR
BL
BL
WH
D601
D603
D602
D604
C601
C603
C604
C602
BK
(256)
(258)
(257)
BATTERIES
DC12V["D"SIZE(UM/SUM-1,
R20 or HP-2)BATTERYX8]
DC12V["D"SIZE(UM/SUM-1,
R20 or HP-2)BATTERYX8]
CNS504
2
2
1
1
RD
OR
GY
BR
D521
D522
4
1
D521:POWER/BATT.
D522:FM STEREO
D522:FM STEREO
BL
GR
WH
F601
T1.25A L 250V
T1.25A L 250V
2
3
4
1
PK
BK
BK
WH
BK
GY
VL
BL
BL
GR
YL
OR
RD
BR
RD
BR
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
CNS101
2
3
1
PK
BK
BK
WH
BK
TAPEMECHA
BK
BR
(85)
BR
RD
BK
WH
RD
BK
WH
WH
WH
CNS502
BR
RD
OR
YL
1
2
3
4
BL
GR
YL
OR
RD
BR
VR206
C205
C204
C225
IC201
GRAPHIC EQUALIZER
C214
C218
C222
R201
R202
RD
GR
BK
BK
WH
WH
YL
PK
BK
WH
YL
YL
RD
RD
BK
OR
GR
BK
BK
OR
YL
YL
YL
GR
VL
YL
PK
BK
GY
GR
RD
WH
1
1 2 3 4 5 6
6
C234
C203
C206
C209
C208
C211
C210
C212
C213
C215
C217
C221
C223
C224
C220
R208
R207
C216
C219
VR201
VR202
VR203
VR204
VR205
X-BASS
330HZ
1KHZ
3.3KHZ
10KHZ
C207
A
B
1
5
2
10
20
24
15
A
B
A
B
A
B
A
B
C201
C202
R205
C232
C231
C233
B
A
VOLUME
R233
R204
R203
R234
R231
R232
BK
BK
RD
CNS702
YL
VL
BK
BK
YL
SW301
R313
D301
C702
SW301:
SURROUND
SURROUND
A
B
C
OFF
SURROUND
CNS304
CNS204
CNS202
ON
D
C701
4
1
CNS506
4 3 2 1
5 4 3 2 1
1
SP703
SURROUND
SP701
SP702
R-CH
L-CH
WOOFER
WOOFER
SPEAKERS
SP704
SURROUND
2 3 4
POWER PWB-A6
LED
PWB-A3
PWB-A3
SURROUND PWB-A5
LED
PWB-A4
PWB-A4
GRAPHIC EQUALIZER PWB-A2
RD
BK
WQ-730H
– 15 –
Figure 15 WIRING SIDE OF P.W.BOARD (2/2)
7
8
9
10
11
12
TC5
TC7
VC5
VC7
VC6
VC8
TC6
TC8
B R
R D ( R )
O R
Y L
G R
B L
V L
G Y
W H ( W )
B K
P K
PINK
BLACK
WHITE
GRAY
VIOLET
BLUE
GREEN
YELLOW
ORANGE
RED
BROWN
COLOR
TABLE
LW
L4
L3
MW
T.
1
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
5
4
3
2
1
2 3 4
1 2 3 4
5 6 7 8
CNS105
BK
YL
YL
BK
WH
C508
R121
R120
C118
C117
R122
R151
R185
IC101
C169
C161
C163
C181
C171
C183
C162
C170
R166
R172
R176
R162
R131
R178
R182
R170
R174
R183
R127
R169
R173
R180
R179
R107
R124
R20
R505
C506
VR501
R501
C307
C303
C304
C308
R306
R310
R308
R304
R303
C311
C309
C109
C107
Q101
C106
C104
R112
R108
C105
C101
C103
C102
C312
C310
R307
R309
R117
R115
R116
R113
R105
R106
R305
R502
D502
R177
R181
R126
R118
R175
CNP501
C175
L103
D103
C176
C37
C38
C34
C33
C21
C41
C9
T3
C5
C3
C43
C44
C16
TC4
C20
C8
R5
C4
IC1
C2
C1
C31
R18
R9
R10
C11
TC2
C14
CF1
R12
R8
SW401
R17
CNP203
CNP201
L104
D106
R186
R125
R123
C419
C414
C413
C421
C422
R413
R414
R415
R416
C415
C407
R407
R408
R410
C408
C406
C39
R409
R405
R403
R406
R119
D101
D6
R404
D5
Q402
E B C
E B C
Q401
SW103
C184
C172
C164
L105
SW102
BEAT CANCEL
CNP503
Q105
E B C
L101
L102
5
1
FW2
C153
C151
C152
R152
C154
SW101
REC
PLAY
RECORD/
PLAYBACK
PLAYBACK
C160
C188
C186
C186
C158
C157
C187
C159
R153
R155
R157
R159
R159
R167
D102
R156
R154
R158
R160
R164
R160
R164
R168
C179
C174
C168
C165
C173
C177
R163
R161
R171
D105
Q103
E B C
CNP505
R510
R509
C507
L501
TAPE
SPEED
SPEED
Q503
C B E
E
B
C
B
C
E
B
C
B
C
E
B
C
B
C
Q501
Q502
Q504
R508
R507
R504
R301
R302
R110
R109
R312
1 2 3 4 5 6
7 8
R311
IC301
C302
C301
R314
R111
C108
Q102
R114
C502
C503
CNP303
C504
C505
D501
R503
5
1
C178
C166
C416
IC401
C412
C417
C418
C110
C520
C411
C409
C405
C509
A
B
C410
CNP701
C182
D104
C29
C28
C25
C23
C22
L1
C6
C7
C42
L2
C17
C15
L6
L7
R2
C40
C12
BPF1
3
2
1
C27
C24
C26
VR1
VCO
R11
R4
R3
RD
BK
GR
GR
BK
RD
R1
T1
D2
D1
R13
C35
R15
R16
R14
C36
C30
C32
C306
C305
CNP106
CF2
1
2
3
3
2
1
2
1
IC2
T2
C185
C155
C156
CNP104
CNP102
C119
C116
C115
A
B
C
C114
C113
C167
SW102
4 3 2 1
1 2 3 4
1 2
2
C
C
B
E
B E
1
BUILT-IN MICROPHONE
MIC101
(272)
FM ROD ANTENNA(267)
L3 MW/LW
BAR ANTENNA
BAND
SELECTOR
FUNCTION
DUBBING
SPEED
MIC
NORMAL
HIGH
FM
MONO
FM STEREO
HEADPHONES
J403
1 2 3 4
12 11 10 9
8 7 6 5
4 3 2 1
1 2 3
2
1
12
10
5
1
13
15
20
24
24
20
15
13
1
5
10
12
TAPE
RADIO
POWER ON
FM
MW
LW
SW1
SW401
SW103
A
C
B
D
E
A
F
B
G
C
H
D
A
B
C
D
E
F
MAIN PWB-A1
STAND-BY
WQ-730H
– 16 –
PACKING METHOD (FOR UK ONLY)
• Setting position of switches and knobs
Tape Mechanism Control
STOP
Tuning
LOW
Function
STAND-BY/TAPE
Beat Cancel Switch
A
Dubbing Speed/FM Mode
MIC/FM MONO
Graphic Equalizer Control
CENTER
Volume Control
CENTER
Surround Switch
OFF
1. Polyethylene Bag, Unit
9FG21195100010
2. Packing Add., Top, Left
9FG21295100010
3. Packing Add., Top, Right
9FG21295100020
4. Packing Add., Bottom, Left
9FG21295100030
5. Packing Add., Bottom, Right
9FG21295100040
6. Operation Manual
9FG20095100004
7. AC Power Supply Cord
9FGS9821820400
8. Packing Case
9FG20595100010
2
7
3
4
5
6
8
1
FRONT
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