Sharp CD-BK2100V Service Manual page 18

CD-BK2100V
FM
ANTENNA
SO302
BF301
B.P.F
AM LOOP
ANTENNA
1
2
AM
TRACKING
T303
MOTOR
DRIVER
MM1
TAPE Q708 +3B
M
MOTOR
SOLM1,SOLM2 Q704
+3B
Q705
SOLENOID
SWM2
IC701
T2 PLAY
54PIN
SWM1
IC701
T1 PLAY 53PIN
SWM4 IC701
R. PLAY 56PIN
IC701
SWM3
55PIN
F. PLAY
CNS601
FROM CD SECTION
CNP11
TAPE 1
L-CH
PB HEAD R-CH
REC
SWITCHING
P.B
Q103-
TAPE 2 Q106
L-CH
REC PB HEAD R-CH
AC BIAS
SWITCHING
BIAS
ERASE
HEAD OSC
6
IC301
1 TA7358AP
FM FRONT END
9
8
2 3 4 5 7
FM RF L312 T301
FM OSC
OSC BUFF
Q302
AM BAND
T306
COVERAGE
CNP601
1
FROM KARAOKE 2
SECTION
CNSK1
3
1
2
3
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
1
L(T1)
VCC 13
24
R(T1)
P.B
4 L
2
L(T2)
21
R
23
R(T2)
3
L NF 5
4
20
R NF
H/N
6
POP REDUCE T1/T2 7
18
R
L REC 9
REC
16
R REC 8 L NF
17
R NF
14
REF
10
12 ALC
NOR/
HIGH T1/T2
15 19
SWITCHING
Q107
Q111
Q108
Q110
Q109
SWITCHING
Q128
Q124
L104
SWITCHING
Figure 18 BLOCK DIAGRAM (3/4)
FM IF
T302 CF303
T351
AM IF
1
2
AM MIX
IC303
LA1832S
FM IF DET./FM MPX./AM IF
24 23 21
FM OSC
X352
VT
4.5MHZ
20 1 22 15 16
OSC
IC302
LC72131
PLL(TUNER)
FM/AM
+B4
7
FM +B
FM
Q360
SWITCHING
JK601
VIDEO IN
L
AUX
R
TAPE
TUNER
CD
+B4
P.B
L
REC
BIAS
Q126
– 18 –
CF351
X351
456kHz
CF352
4 5 9 8
17 13
AM IF GND VCC FM
VCO MO/ST
DET
L 14
15
R
FM/AM
MPXIN FM/AM
OUT
7 18 16 12
11 3 4 5 6
17
VDD
MO/ST
9 10
21
+B4
7 18 23
R
L
9
L
R
16
10
L
21
R 15 IC601
LC75341
4
11
L
AUDIO PROCESSOR
R 14
12
L
R
13
L R
3
7 8 17 18
Q121
Q122
MUTING
-B2
+5V
+B4
5
+B4
8
12
13
14
INP
E
-20dB SYSTEM
ATT MUTE
R
Q605
Q603
Q604 Q606
L
L
R
+B4
REC
8
1
IC561
IC562
IC563
7
4
OPE
AMP.
KIA4558P
T1/T2
BIAS