Read Sharp WQ-730H (serv.man2) Service Manual 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.
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