Sharp XL-55

XL-55/55C
– 18 –
A
B
C
D
E
F
G
H
1
23456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 13.
(0V)
4.7V
1.3V
1.3V
4V
(2.2V)
2.3V
2.1V
(0V)
5V
2.1V
2.1V2.1V
0V
5V 5V
(4.3V)
2.9V
0V 5V
(1.2V)
3.8V
(1.9V)
3.8V
5V
2.5V
(2.7V)
2.1V
(2.7V)2.1V
0.6V
(0.9V)0V
2.3V
5.2V
(0V)
2.6V
(2.6V)
0V
0.9V 0.9V
2.6V2.6V
0V
5.1V 4.8V 0.1V 0.1V
3.9V
(0V)
(0V)
3.5V
3.7V
(11.4V)
1.7V
0V
(10V)
(8.3V)
8V
0.3V
0V
0V
0V
0V
0V
0V
0V
(11.7V)
11.7V
(0V)
0V
(0V)
2.6V
(0V)
7.8V
8.3V
(0V)
4.7V
(0V)
1.5V
0.3V 0.3V
(0.8V) (0.8V)
(0.8V)
(0.8V)
0.3V
0.3V
(0V)
1.5V
10.1V
4.6V
4.6V
0V
0V
0V
0V 0V
0.6V
0.6V
10.2V
0.7V
10.9V
10.8V
11.7V
0.7V
11.7V
11.7V
0V
4.4V
0.6V
4.9V
4.9V
11.8V
11.7V
11.9V
11.8V
3.2V
0.7V
0V
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
10
9
8
5
2
(ML)
9
8
7
6
5
4
3
2
1
1K
7
6
5
4
3
2
1
3 4 1
11
6
7
12
24 23 22 21 20 19 18
17
16 15 14 13
1 2 3
4 5 6
7
8
9
10
11
12
22 21 20
19
18
17 16 15
14 13 12
1 2 3 4 5 6 7 8 9
10
11
1 1 2 3 2 3 4 5 6 7 8 9
10
9 8 7 6 5 4 3 2 1
3
CHASSIS
GND
FM/AM
ANTENNA
2
1
BIAS
SURROUND
D_GND U_CON5V
SOL
MOT REC
RUN_PLS
A-12V
C
PD
9P(UJ)
FM FRONT END
(CH)
(UJ)
R-CH
L-CH
TAPE MECHANISM PWB-D,E(217-10,11)
TAPE MECHANISM
Ass'y (217)
ERASE
HEAD
HEAD
RECORD/PLAYBACK
SOLENOID
TAPE
MOTOR
–
+
FOOL PROOF
CAM
PHOTO
INTERRUPTER
M 12V
VT
FM FM MUTE
TAPE R
TAPE L
REC R
REC L
VSM
AM RF
(AM/FM) PHASE
PHASE IF OUT VCC FM DET STEREO SD GND AM IF
REG
AM MIX OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
CUT
AM LOW
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
FM IF
FM AFC
AM OSC AM OSC
CE DI CL DO MO/ST IF REQ
IF IN
AM IN
FM IN
VDD
AIN
AOUT
VSS
X OUT
X IN
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
7
6
1
2
3
4
5
7
6
M
1
2
1
2
1
11
1
1
1
2
2
2
2
2
2
3
3
3
1
2
3
3
3
3
3
1
2
AM ANT
AM OSC
FM OSC
AM TRACKING
FM MUTE LEVEL
P21 12 - E
CNS703
FROM DISPLAY PWB
AM BAND COVERAGE fL
FM BAND
COVERAGE fL
FM IF
FM IF
FM IF
FM IF
AM IF
1
2
3
1
TP301
2
3
1
2
3
FM RF
0.001
0.001
0.001
68K
27P
560P
0.022
0.022
1N4148
1N4148
0.047
0.022
12P
SVC348S
1mH
8.2K
33P
0.022
3.3/50
0.022
0.022
0.001
4.7/25
0.022
2.7K
1/50
456kHz
1/50
1/50
12K
1/50
1K
470K
12K
56P
KRC104 M
0.022
0.022
6.8K
6.8K
LA1832S
FM IF DET./FM MPX./AM IF
2.2/50
3.3K
1/50
0.001
1/50
22P(CH)
10K
100/10
270
0.022
0.022
0.022
330P
33P
10/16
0.022
2.2K
5.6K
10K
0.001
1N4148
1N4148
0.001
33K
KDV147B
100K
1N4148
1N4148
0.022
0.01
0.001
0.0047
0.0047
18P(CH)
0.001
5P
22
TA7358AP
10P(CH)
47K
100P
33
SC1674-C
10/16
0.0033
0.022
680
6P(UJ)
KDV147B
10K
22P(CH)
33P
33
470
47
4.7K
330
2.2K
680
SC1674-C
33
0.022
330
330
0.022
47/16
10K
1/50
1.5K
0.001
10/16
0.022
100µH
330P
0.01
2.2K
5.6K
1K
15P(CH)
0.001
4.5MHz
1K 1K 1K 1K
1.8K
4.7K
LC72131
PLL(TUNER)
12P(CH)
BA3126N
HEAD SELECTOR
82P
1K
0.001
330
10K
0.001
2.7K
82P
820P
KRC102 M
KRA102 M
2HA1015 GR
C2001-K
330µH
150
150
10K
10K
KRC104 M
100/16
0.0039
47K
56
0.027
100K
15K
2HC1815 GR 2HC1815 GR
22K
15K
4.7/25
0.0022
4.7K
100
4.7K
5.6K
4.7/25
2HC1815 GR
2HC1815 GR
4.7/25
22K
100
0.0022
4.7K
100K
10/16
4.7K
4.7/25
BA3311L
REC./P.B.
EQUALIZER
AMP.
150K
3.9K
10K
47/16
120
0.015
10/16
330P
330P
270P
0.015
150K
270P
10K
120
10/16
3.9K
47/16
330
2.2/50
2.2K
1K
4.7K
3.3K
22/16
100K
2HC1815 GR
100/25
10K
100µH
0.022
100/10
DZ5.1BSB
390
390
2HA1015 GR
5.6K
6.8K
5.6K
47/16
3.3K
2.2K
1N4148
2HC1815 GR
4.7K
33K
18K
HSB562-C
0.001
56K
1N4148
HSB562-C
1N4148
100/25
3.3/50
10K
47K
270
KRC107 M
1.5K
10K
1.5K
0.022
KRC102 M
KRC102 M
0.022
1N4148
KRA102 M
1N4148
0.022
1K
47K
0.022
5.6K
CNP301
C376
C301
C302
T306
R323
C334
C335
C337
C329
D301
D302
T302
C331
C332
C330
VD301
VR351
L353
R358
C343
C361
C362
C360
C363
C366
C364
C365
X351
R350
C367
C372
C371
R361
C368
R356
R357
R362
C369
C374
C373
Q351
R363
R364
IC303
C357
R355
C358
C356
C370
C355
R376
C398
R353
C354
CF351
C399
C353
CF352
T351
C378
CF302
C344
C352
C351
R366
R351
R336
C349
D307
D305
C320
R303
VD303
R302
L302
C306
D306
D308
C308
C304
C309
C305
C307
C319
C303
C318
R301
BF301
IC301
C311
T304
R304
C315
R315
Q302
C316
C321
C317
R305
CF303
C313
L303
VD302
R308
C314
C312
R306
R307
R310
R309
R316
R312
R313
Q306
R314
C323
R382
R386
C397
C394
R381
C393
R380
C392
C380
C387
L351
C386
C385
R379
R377
R393
C382
C384
R374 R373 R372 R371
R359
R360
IC302
X352
C381
CNW101
CNP101
IC101
C122
R102
C102
R138
R140
C101
R139
C121
R101
C131
Q172
Q171
Q152
Q151
L151
R156
R157
R155
R153
R154
Q153
C155
C153
R151
C154
R152
R116
Q101
Q103
R117
R115
C129
C115
R123
R119
R121
R126
C113
Q102
Q104
C130
R118
R120
C116
R124
R125
C117
R122
C114
IC102
R105
R109
R107
C107
R103
C109
C111
C103
C104
C105
C110
R106
C106
R108
R104
C112
R110
C108
R141
C123
R111
R133
R131
R113
C126
R134
Q105
C125
R365
L352
C395
C396
ZD351
R391
R392
Q360
R385
R384
R383
C391
R114
R112
D104
Q106
R132
CNW901 CNS901
R910
R909
Q902
C901
R902
D901
Q905
D902
C903
C902
R907
R903
R904
Q903
R901
R905
R906
C905
Q901
Q904
C904
D904
Q906
D903
SW901(217-7)
SW902(217-8)
M901(217-9)
SOL901(217-4)
C350
R352
R395
C383
R387
Figure 18 SCHEMATIC DIAGRAM (1/7)