Sharp WF-2100BK, Service Manual

Page: 11 / 24

WF-2100W
– 11 –
Figure 11 SCHEMATIC DIAGRAM (2/2)
7 8 9 10 11 12
0V
0V
0V
0V
14.2V
6.9V
6.9V
6.9V
6.9V
0V
0V
10.7 V 10.7 V 10.7 V 10.7 V 10.7 V 0 V 0 V 0 V 7 V
2.1 V 2.1 V 2.1 V 2.1 V 2.1 V 0 V 2.4 V 0 V 7 V
SW501-C
FUNCTION
SELECTOR
SW501-D
FUNCTION
SELECTOR
C254
2.2/50
C258
220P
R267
330K
R233
270
Q209
2SC945 AP
R269
3.9K
C256
2.2/50
C236
220/16
R270
3.9K
C229
2.2/50
C259
220P
R231 270
Q210
2SC945 AP
C255
2.2/50
R268
330K
R258 560
CN203
CN204
SW501-B
FUNCTION
SELECTOR
CON401 SPEAKER
TERMINALS
C428
0.1(ML)
R428
2.2
R426
2.2
C426
0.1(ML)
C427
0.1(ML)
R427
2.2
C425
0.1(ML)
R425
2.2
IC402
LA4663
POWER AMP.
JK401
HEADPHONES
R430
220
R429
220
C430
10/16
C429
10/16
C422
0.022
R431 15K
C419
2.2/50
R421
1K
C424
47/25
R432
15K
C417
0.001
C418
0.001
C420
2.2/50
R422
1K
R415
3.3K
C413
0.001
C415
0.15(ML)
R419
3.3K
R417 22K
R420
3.3K
C416
0.15(ML)
C414
0.001
R416
3.3K
R418 22K
C409
2.2/50
C410
2.2/50
CON501
D401
1N4148
R433
15K
C501
33/50
C502
0.1
IC403
L7808CV
VOLTAGE
REGULATOR
IC404
L7809CV
C514 1/50
C512
47/16
C516
0.1
VOLTAGE
REGULATOR
C515
1/50
IC401(1/2)
KIA4558P
OPE AMP.
IC401(2/2)
KIA4558P
OPE AMP.
R410
12K R408 12K
C408 4.7/50
R406 2.7K
C406 0.0033
C412
47/16
C411 100/16 R413
10K
R412
10K
C407
4.7/50
R407
12K
R405 2.7K
C405 0.0033
R409
12K
R403 10K
R404
10K
C404
2.2/50
C403
2.2/50
R401 100K
C401
0.015(ML)
R402 100K
C402
0.015(ML)
47K
C518
0.0027(ML)
C511
47/16
L501
47
µ
H
C505
47/16
C506
47/16
R519 10K
R513 10K R523 10K
R522
10K
D504
1N4148
D506
1N4148
D508
1N4148
D503
1N4148
CON502
R411
330
M1
TAPE
MOTOR
SW1-B
TAPE 2
DIRECTION
SW2
TAPE 1
PLAY
SW3
TAPE 1
FF/REW
SW6
TAPE 2
FF/REW
SW4
TAPE 1
REC
SW5
TAPE 2
PLAY
R507 47K R508 3.9K
R509
330
Q504
SS8550
R501
00(B)
47K
C517
0.0027(ML)
IC301
BA3822LS
GRAPHIC EQUALIZER
R331
180K
R330
180K
C335
1/50
C325
1/50
R305
2.2K
C305
1/50
VR305-A
100K(B)
VR305-B
100K(B)
VR304-A
50K(B)
VR304-B
50K(B)
VR303-A
100K(B)
VR303-B
100K(B)
VR302-A
100K(B)
VR302-B
100K(B)
VR301-A
50K(B)
VR301-B
50K(B)
R308
1K
C302
2.2/50
C334 220/16
R307
220
R301
1K
C301
2.2/50
R303 2.2K
C303
0.022
R309
1K
R318
1K
C323 4.7/50
C307
1/50
C308 0.022
C311
0.33/50
C312 0.0056
C315
0.1
C320
820P(CH)
C322 0.022
C319
0.018
C321
1/50
C318 0.0056
C317
0.33/50
C313
0.1(ML)
C310
820P(CH)
C309
0.018 C324
4.7/50
C306
1/50
R306
2.2K
R310
1K
R304
2.2K
C304
0.022
LD314
L01-224HD
SW401
SURROUND
LD311
L01-224HD
LD312
L01-224HD
R333
1K
LD313
R319
330
R302
10K
Q302
KTC3875 GR
IC303
LB1403N
METER DRIVER
IC302
LB1403N
METER DRIVER
R313
10K
R314
120
Q301
KTC3875 GR
C326 0.001
C329
10/16
C328 10/16
R315 12K
R316 10K
R320
1K
R321
1K
R324
1K
R325
1K
R326
1K
LD301
L01-224HD
R327
1K
LD306
L01-224HD
LD302
L01-224HD
LD303
L01-224HD
LD304
L01-224HD
LD305
L01-224HD
R328
1K
R334
1K
R335
1K
R336
1K
LD307
L01-224HD
LD308
L01-224HD
LD309
L01-224HD
LD310
L01-224HD
R323
10K
C333 10/16 R322 12K
R329
120
C330 10/16
C331 0.001
VR401-A
50K(B)
VR401-B
50K(B)
CN205B
CN205A
CN501
D601
1N5402
D603
1N5402
D604
1N5402
D602
1N5402 C604 0.022 C602 0.022
C601 0.022 C603 0.022
F601
T4A L 250V
SO601
AC INLET
SOCKET
T601
POWER
TRANSFORMER
SW601
VOLTAGE
SELECTOR
D511
1N4148
D501
1N4148
R312
3.3K
C314 0.0033
R317
1K
R311 3.3K
C316 0.0033
CD/LINE
(ON)
RADIO
(ON)
TAPE
(STAND-BY)
CD/LINE
(ON)
RADIO
(ON)
TAPE
(STAND-BY)
6
1
6
1
L_IN
R_IN
CD/LINE
(ON)
RADIO
(ON)
TAPE
(STAND-BY)
+
+
–
–
+
–
+
–
–
+
+
–
–
+
–
–
–
+
+
+
TWEETER
8 OHM
SUPER
TWEETER
SUPER
TWEETER
TWEETER
8 OHM
WOOFER
16 OHM
WOOFER
16 OHM
WOOFER
16 OHM
WOOFER
16 OHM
L-CH
R-CH
L-CH
R-CH
14
13
12
10
11
9
8 7 5
4
1
1
4
3
2
7
3
6
2
+OUT1
+OUT2
-OUT1
-OUT2
R_OUT
L_OUT
R_OUT
4 6 5 3 2 7 1
4 6 5 3 2 7 1
MIC MUTE
L_IN
R_IN
1
2
1
2
R_OUT
1 3
2
GND
OUT IN
1 3
2
GND
OUT IN
–
+
8
6
5 –
+
1 2 3 4 5 6 7 8 9 10 11 12 13
1 2 3 4 5 6 7 8 9 10 11 12 13
M
A
B
APE
EED
MAIN PWB-A1
23 21 18 17 15 13 11 9 7 5 3 1
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
24 22 20 19 16 14 12 10 8 6 4 2
(10kHz)
(10kHz)
(100Hz)
(100Hz)
(500Hz)
(500Hz)
(1kHz)
(1kHz)
(5kHz)
(5kHz)
X-BASS
GRAPHIC EQUALIZER
X-BASS
GRAPHIC EQUALIZER
1 1
7 7
ON OFF
VOLUME VOLUME
L_OUT L_IN TONE R_OUT R_IN TONE GND
GRAPHIC EQUALIZER
PWB-A2
MUTE
SIDE A LED
SIDE B LED
GND
SURROUND ON
SURROUND ON
ST LED
R_IN
GND
+8V
R_OUT
L_OUT
L_IN
BATTERY A
PWB-A4
BATTERY B
PWB-A5
POWER PWB-B
BATTERYES DC15V
["D" SIZE(UM/SUM-1.
R20 or HP2)
BATTERY x 10]
AC 110-127V/
220-240 V,
50/60 Hz
AC 110-127 V
AC 220-240 V
CT102
T104
MW
TRACKING
fH
fL
TC4
L103
CT101
T105
MW BAND
COVERAGE
fH
fL
TC3
T103
FM
TRACKING
fH
fL
TC2
L102
FM BAND
COVERAGE
fH
fL
TC1
L101
IC302, IC303: VOLTAGE
PIN 1 2 3 4 5 6 7 8 9
LED OFF
LED ON
+B
+B
+B
+B
+B
+B
+B +B +B
+B
+B
+B
+B
+B
+B +B
+B
+B
+B
+B
+B +B
+B +B
+B
+B +B
H L + –
AC POWER
SUPPLY CORD