Sharp GX-CD30 Service Manual page 22

GX-CD30/30C/130/130C
B. P. F.
ROD
F1
ANT.
A 1 2 3
1
CNW2
0.001
C4
L1
22P
FM RF
(CH)
B
R1
10
fL fH
FM TRACKING
C11
220P
C
TUNER PWB-B
D
E
TAPE2
PLAYBACK HEAD
L-CH
R-CH
F
TAPE1
RECORD/PLAYBACK
HEAD
L-CH
R-CH
ERASE HEAD
G
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 13.
1
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FM FRONT END
R5
C14
IC1 330K
0.022
LA1186N
7
RF AMP
MIX OSC
C8
VCC
4P
2 3 9 6 8 4
5
(CH)
1.6V
0V
C2
R2
C29
33
10/16
C5
33P
(CH)
C6
L2
TC1
VC1
VC2
R25
15P
FM
(RH) 120
OSC.
fL fH
FM BAND
R3
COVERAGE
47
R9
22K
T1
C15
C10
0.022 0.022 L3
FM IF
AM BAR ANT.
R7
390 TC3 VC3
+B
C17
0.022
TC4 VC4
L4
AM OSC.
R201
1K (HND)
R202
1K
R231
1 1
2 2
3 3
SW201-D SW201-C
P R P R
R203 C207
1K 330P
C203
150P
0V
(0V) 24
1 1
C205
2 2
680P
3
3
4 4
5 5
C206
680P
R204
1
0V
1K
(0V)
C204
150P
R P R
P
SW201-F SW201-E
R232
10K
IC201 : PLAYBACK AND
RECORD/PLAYBACK AMP.
2
Figure 22 SCHEMATIC DIAGRAM (3/5)
manuals search engine
R6
820K
C39
C37
T2
0.022
220/10
R27
33K
1.6V
FM DET.
1.6V
24 23 22 21 20 19 18
AM
AM STB AM +B FM DET AM OUT
IN
OSC RF IN
ST TUN
AM IF
FM IF IN AM MIX AGC GND IND IND
1 2 3 4 5 6 7
6V
1.6V (6.3V)
C26
22/16
C20
0.022
1 3
1 3
CF2
CF3
2
T3
2
AM IF
C33
fL AM C21
TRACKING 0.022 1/50
fH
fH AM BAND
COVERAGE
fL
C36
+B
0.022
1 2 3 4 5 6
CNP1
R219
R220
27K
27K
10K
R207
R211
C217
10K
6.8K
0.018
R213
2.7K
C215
22/16
C219
1/50
0V
0V (0V)
17
23 (0V) 22 21 20 19 18
2 3 4 5 6 7
0V
(0V)
C210
C208
C220
330P 330P
1/50
C216
22/16
R214
C218
2.7K
0.018
R208
R212
R206
10K
6.8K
150
C230
0.001
C351
560P
3 4
– 22 –
+B
R30
VCO
1.2K
C24
470P VR1
C27 6.8K
3.3/50
R29
C25
15K
3.3/50
1.2V
1.7V
(0V)
17 16 15 14 13
DET
MPX-IN FM-M/ST VCO VCO
OUT
MPX VCO
CK 7kKHz
RCHAM/FM
LCH
8 9
10 11 12
IC2
LA1805
FM/AM
IF MPX.
(Ra)
C35
1/50
+B R35
1.8K
+B
+B
TUN+B +B
FW851
R-CH
1
AUDIO GND.
TO CD SERVO PWB 2
L-CH
CNP851
3
P18 3 - H
CD +7.4V
4
POW GND
5
TO DISPLAY PWB
MUTE
1
SYNC IN
FW603
2
3
P26 2 - H
CNP603
R243
56K
+B
R241
12K
C249
100/10
R229
10K
R250
100
C239
2.2/50
C233
22/16
0.6V
(0.6V)
16 15 14 13
IC201
LA7345K
8 0.6V 9 10 11 12
(0.6V)
C234
22/16
SW201-A
P
BIAS
OSC.
R354
R352 Q351
2SC2001 K 47
100K
R351
R355
(7.2V) C356
47K
47
0V
47/10
0V
(1.1V)
C353 0V
R353
(0.4V)
0.0039
22
R254
L351
C354
22k
330µH
0.027
(ML)
5
R433
3.3K
CD
FM AUTO
AM
TAPE
SW501-A
FUNCTION
FUNCTION
SW501-B
CD
FM AUTO
AM
TAPE
FW1
+B
1
2
3
4
5
+B
6
+B
R456
R458
10K
1K
R455 R457
10K 1K
H : MUTE
L : REC
FW
CNP602
L
1
R
2
AUDIO GND
3
L
4
R
5
AUDIO +B
6
SYNC.
7
TAPE +B
8
VCC
9
GND
10
BC-A
11
SW201-B
P R
R265
4.7K
R262
4.7K
+B
R
+B
R356
47
L : T1
D254
1SS133
3
2
1
Q252
KRC102 M
6