Read Sharp SD-CX1 (serv.man7) Service Manual online
SD-CX1H
– 44 –
Figure 44 SCHEMATIC DIAGRAM (3/14)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 37.
4 3
1 2 3 4 5
1
CLK
DI
CE
DQ
TP301
NC
MUTE
IO2
FM IF IN
AM MIX
OUT
AM OSC
OUT
FM AFC
AM OSC
IN
AM RF IN
AM LOW
CUT
VSM
FM/AM
OUT
GND
AM IF IN
REG
X OUT
X IN
CE
DI
CL
DQ
AM IN
FM IN
VDD
PD
AIN
AOUT
VSS
ANT
GND
GND
GND
VT
VCC
IF OUT
F OUT
FM
MW
MO/ST
NC
2 3
4 5
18
19
20
21
22
23
24
8 7 6 5
2 1
7 8 9
6
10
17 16 15 14 13
19 18
22 21 20
TUNER PWB-A2
AM SIGNAL
FM SIGNAL
1
3
2
3
2
1
3
2
1
2.8V(1.3V)
0V
0V
0.9V(0V)
9.8V(0V)
0V
0V
0V
0V
6.5V(0V)
2.8V(1.3V)
2.6V(0V)
0V
0V
11
5V
0V
5V
2.6V
0V
2.8V(1.3V)
0.9V
0.9V
5.2V
2.6V(0V)
0V
(2.5V)
5.2V
2.6V
0V
0V
0V
5V
0V(11.6V)
3.9V(0V)
0V
0V
3.6V
5.1V
2.2V
2.2V
0.6V(1.2V)
0V(1.9V)
2.6V(0.9V)
2.2V
5.1V
2.2V
2.1V
0V
+B
+B
+B
+B
+B
FM
AM
GND
AM OSC.
AM TRACKING fL
AM ANTENNA
FM IF AMP.
AM IF
AM IF
FM
MUTE LEVEL
IC302
D308
DS1SS133
D307
DS1SS133
1
1
2
2
AM BAND
COVERAGE
COVERAGE
C324
0.47/50
C339
100P(CH)
R323
68K
C334
18P
(UJ)
C337
0.022
T306
C335
330P
C323
0.022
T302
R336
10K
C330
15P(UJ)
C338
0.0022
VD301
SVC348S
VR351 10(K)B
R386 1K
C342 0.022
L353
1mH
CF352
C332
0.022
C331
0.047
R358 8.2K
C343
33P(CH)
R352
1K
T351
R347
6.8K
R348
680
CF302
R349
33
Q301
2SC380 O
C366
C352
10/16
C351
0.022
R351
5.6K
C361
0.022
C362
3.3/50
C364
10/16
C363
0.022
C365
0.022
C350
0.047
C310
100P(CH)
C384
0.001
1
R
C394
47/25
C387
0.047
R380
1.5K
R379 2.2K
C385 0.01
C392
0.001
C393
1/50
R381 10K
L342
2.2
µ
H
X352
4.5MHz
C381
12P(CH)
C382
15P(CH)
C397
0.022
R382
150
C380
10/16
C390 0.001
R345
4.7K
C321 100/16
C341
0.022
C346
0.022
R344
470
CF301
FM IF
10.7MHz
R346
330
C347
0.022
R369
82
C345 0.022
D305
DS1SS133
D306
DS1SS133
C389
0.001
D304
DS1SS133
D303
DS1SS133
C301
0.001
0.001
FE301
FM FRONT END
C311
100P(CH)
100P(CH)
C312
0.001
R372
1K
R373
1K
R374 1K
Q371
KTA1266 GR
R384
5.6K
R371
4.7K
C391
47/25
R385
5.6K
D352
DS1SS133
FM IF
10.7MHz
L341
BALUN
C302
0.001
0.001
SO301A
ANTENNA
TERMINAL
D302
DS1SS133
D301
DS1SS133
BI303
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