Service manual

CD-BA250H/CD-BA2600H
– 20 –
Figure 20 BLOCK DIAGRAM (2/3)
FM OSC
AM LOOP
ANTENNA
L341
BALUN
SO302
FM
ANTENNA
Q301
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
JK690
VIDEO/AUX IN
R
L
R
L
FM
+B
+B4
CLK
+B4
AM IF
CNS601
ATT
–20 dB
Q101~
Q104
–B2
+B4
IC7
IX040
(2
IC561
IC562
KIA4558P
OPE AMP.
Q107
Q108
Q603
Q604
Q612
Q613
10.7 MHz
450 kHz
REC/PLAY
CLK
CE
DI
DO DI CE
MO/ST
SWITCHING
+B4
FM/AM
IC302
LC72131
PLL(TUNER)
OUT
FM/AM
L
R
BIAS
T1/T2
MUTING
P.B.
REC
AC BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP7
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
SWITCHING
Q109
OSC
BIAS
Q111
L103
Q105
Q106
REC PB HEAD
TAPE 2
PB HEAD
TAPE 1
R-CH
L-CH
R-CH
L-CH
IC601
LC75341
AUDIO PROCESSOR
+B4
R
L
REC
R
L
L NF
R NF
ALC
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
R
L
FM/AM
MPXIN
STEREO
AM RF IN
AM OSC IN
FM
Q360
VT
OSC
X352
4.5 MHz
AM BAND
COVERAGE
AM TRACKING
T303
T306
X351
456 kHz
MO/ST
VCO
DET
FM
FM+B
GND
AM IF
CF351
FM/AM IF MPX.
IC303
LA1832S
FM IF DET./
FM MPX/
AM IF
AM MIX
CF352
T351
CF303
CF301
FE301
TA7358AP
FM FRONT END
2422 21
4326
8
5
7
1
21
7
8
4
1
22
3
4
24
2
1
81817
3
910
18
11
16
3
15
10
9
7
23
14
12
13
1
2
20
21
19
7
18
10
8
17
13
4
5
2
24
23
6
9
16
14
12
15
1
514 3 4
217
98517
6
21
20 22
11
17
1615
13
14
12
15
1623
4
7
H/N
P.B
REC
T1/T2
T1/T2
HIGH
NOR/
16 15 14 13 11 10 9
24 3 8
READYMPXIN
VSSA VDDA XOUT
RDCC
RDDA
RST
VDDD
VSSD
XIN
XT21
4.332 MHz
ICT21
LC72723
RDS DECODER
L354
LOW PASS
FILTER
QT21
AMP.