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CD-C1831V
SO301
ANTENNA
TERMINAL
FE301
FM
8
75 ohms
FM FRONT END
GND
2
6
7
AM
AM RF
AM ANT
T302
FM IF
1
CF302
5
3
4
VR351
FM MUTE LEVEL
FMOSC
AM OSC
T306
+B4
Q360
7
FM
VOLTAGE
REGULATOR
FROM CD VIDEO SECTION
CNPV2
FROM CD SECTION
CNP11
L-CH
TAPE 1
R-CH
PB HEAD
REC
P.B
L-CH
TAPE 2
R-CH
REC PB HEAD
AC BIAS
ERASE
HEAD
Figure 14 BLOCK DIAGRAM (2/3)
+B4
+B4
AM IF
T351
CF352
FM IF IN
1
2
3
4
5
8
9
OUT
REG
IN
GND
VCC
IC303
LA1832
IF
FM/AM IF MPX.
AM OSC
OUT
24
23
22
21
7
13
6
10
VOLTAGE
REGURATER
X352
4.5MHz
20
1
22
15
16
11
10
13
12
IC302
OSC
LC72131
PLL (TUNER)
4
3
5
6
21
Q371
CNSV2
1
2
3
4
CNS11
1
2
IC101
3
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
L(T1)
1
R(T1)
24
L(T2)
2
R(T2)
23
SWITCHING
L NF
3
R NF
4
Q103~Q106
POP REDUCE
6
T1/T2
REC
L REC
9
R REC
16
14
REF
11
NOR/
12
HIGH
15
SWITCHING
SWITCHING
Q107
Q108
Q109
SWITCHING
BIAS
OCS
Q128
L104
– 14 –
18
16
17
19
20
FM/AM
MPX
OUT
IN
11
14
15
12
L
R
MUTING
Q361
MPX
Q353
MPX
VCO
Q354
PHASE
CUT
TUNER MUTE
+B4
+5V
17
JK601
VIDEO/AUX
L
AUX
R
TAPE
TUNER
CD
Q113
Q114
13
+B4
P.B.
4
PB
L
21
R
5
20
H/N
7
L
REC
18
R
L NF
8
17
R NF
ALC
10
T1/T2
19
Q111
Q110
SWITCHING
Q124
L103
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
+B5
–B1
8
4
3
IC563
KIA4558P
5
1
OPE AMP.
6 7
IC562
KIA4558P
3
OPE AMP.
8
4
1
FM/A
SWI
+B5
–B1
+B7
KIA70
RES
11
10
L
5
R
16
4
L
IC601
R
17
M62439SP
L
3
AUDIO PROCESSO
R
18
L
2
R
19
1
9
20
Q121
Q122
MUTING
BAIS
Q126
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