– 23 –
IC301 BA3426AS
r
IC Block Diagrams (Main Section)
IC101, 201 BA5417
1
N.C
2
B.S.2
3
OUT1
4
B.S.1
OUT2
VCC
5
POWER GND
6
SW
7
RIPPLE
8
NF1
9
IN1
10
IN2
11
NF2
12
PRE GND
PRE GND
13
14
15
BS
BS
ST. BY
FILTER
T. S. D
7
6
8
9
10
11
TAPE-O-R
MIC/HS
MIC-NF
MIC -IN
RADIO-IN -L
RADIO-IN -R
CD-IN-L
CD-IN-R
LINE-OUT
-L
LINE-OUT
-R
BIAS-IN
12
13
16
14
15
32
31
30
26
29
28
27
25
24
23
22
B-L
B-R
TR-B
TR-C
TAPE-MODE
FNC
REC-EQ-L
REC-EQ-R
REC-NF-L
REC-NF-R
LPF-L
LPR-R
AGC
BIAS
GND
VCC
VCC
21
20
17
19
18
REC EQ
HS : 1.4V OUT
(Low lmp.)
Nor : 0.35V OUT
(Hogh lmp.)
LOGIC
REC EQ
AGC
ECM : Open
Mic : Low
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Q
Q
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