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CD-BK250W/CD-BK2600W/CD-BK270W
ICK1
M65856SP
JK1
MIC AMP.
MIC
40
LATCH
41
CLK
DATA
42
MIC IN
LOUT
36
9
35
ROUT
31
12
L IN
32
13
R IN
22
23
VCC
+B5
VRK1
QK1
MIC
VOLUME
P.B. HEAD
REC PB HEAD
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FM
ANTENNA
IC301
TA7358AP
FM FRONT END
SO302
BF301
1
B.P.F
2
3
FM L312
AM
RF
ANTENNA
CNP301
AM TRACKING
1
2
T303
PLL(TUNER)
8
5
6
L
7
1
R
2
VIDEO/AUX IN
3
ICK2
KIA4558P
OPE AMP.
FROM CD SECTION
L(T1)
L-CH
TAPE 1
24
R(T1)
R-CH
L(T2)
REC
R(T2)
23
SWITCHING
P.B.
L-CH
Q103-
L NF
TAPE 2
Q104
R-CH
R NF
22
POP REDUCE
AC BIAS
L REC
16
R REC
REF
14
12
SWITCHING
Q105
Q106
Q112
SWITCHING
BIAS Q111
ERASE
L103
OSC
HEAD
Figure 18 BLOCK DIAGRAM (2/3)
FM IF
6
T302
CF303
9
4
5
8
7
1
T301
FM
OSC
23
OSC BUFF
Q302
AM BAND
T306
COVERAGE
X352
VT
4.5 MHZ
IC302
LC72131
1
20
22
OSC
+B4
7
+B
FM
FM
Q360
SWITCHING
JK690
TAPE
R
CNS601
AUX
L
TUNER
1
2
CNP7
3
+B4
1
13
P.B
L
4
PB
2
21
R
3
5
20
H/N
L
REC
6
T1/T2
7
18
R
REC
9
IC101
L NF
8
AN7345K
R NF
17
PLAYBACK AND RECORD
NOR/
10
ALC
/PLAYBACK AMP.
HIGH
T1/T2
15
19
SWITCHING
Q114
Q113
BIAS
Q110
Q109
SWITCHING
– 18 –
10.7 MHz
X351
450kHz
CF351
456 kHz
T351
CF352
AM IF
2
4
5
9 8
17
13
14
L
R
15
21
7
18
16
12
IC303
LA1832S
FM IF DET.
FM MPX./
AM IF MPX.
3
4
5
6
15
16
11
17
9
10
21
+B4
23
1
L
9
DI
2
CE
R
16
L
CLK
24
10
IC601
–20 dB
15
R
R
ATT
21
LC75341
L
11
4
L
AUDIO PROCESSOR
14
R
L
12
CD
13
L R
R
7
18
8
17
3
Q107
Q108
MUTING
IC561
4
IC562
–B2
IC561,IC5
KIA4558
OPE AM
+B4
Q601
Q602
REC
+B4
8
1
7
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