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Pin NO.
Symbol
9. NJM2706 IC606
1
LPF
2
MIN
3
MOUT
4
Ca
5
Cr
6
BASSFIL1
7
BASSFIL2
8
BASSVRIN
9
BASSVROUT
10
ealaVRIN
11
ealaVROUT
12
GND
13
V+
14
VREFOUT
15
VREFIN
16
SW1
17
SW2
18
ealaFIL
19
HFFILL
20
HFFILR
21
ROUT
22
LOUT
23
RIN
24
LIN
PART.
1. PB/RP SWITCH IC BA3126N IC202
Pin NO.
Symbol
1
REC SW
L-CH REC
2
GND
GND
3
P/B SW
L-CH P/B
4
CONT
PLAY/REC
5
GND
GND
6
VCC
DC +9V
7
P/B SW
R-CH P/B
8
GND
GND
9
REC SW
R-CH REC
2. PRE AMP IC KIA6225S IC201
Pin NO.
Symbol
1
IN 1
L-IN
2
FEED 1
L-FEED BACK
3
OUT 1
L-OUT
4
VCC
DC+12V
5
GND
GND
6
OUT 2
R-OUT
7
FEED 2
R-FEED BACK
8
IN 2
L-IN
9
GND
GND
3. RECORDING ALC IC BA3308 IC203
Pin NO.
Symbol
1
NG1
L-NF
2
IN1
L-IN
3
OUT1
L-OUT
4
GND
GND
5
ALC
ALC
6
VCC
DC+12
7
OUT2
R-OUT
8
IN2
R-IN
9
NF2
R-NF
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Description
Capacitor terminal for LPF
Monaural Amplifier Input
Monaural Amplifier output
Capacitor terminal for Attack Time Constant
Capacitor terminal for Release Time Constant
BASS Filter Terminal 1
BASS Filter Terminal 2
BASS Effect Adjust Terminal
BASS Effect Adjust Terminal
eala Effect Adjust Terminal
eala Effect Adjust Terminal
GND Terminal
Power Supply Terminal
Reference Voltage Output
Reference Voltage Input
Mode Swiych 1
Mode Swiych 2
eala Filter Terminal
High Frequency Filter for L-ch
High Frequency Filter for R-ch
R-ch Output
L-ch Output
R-ch Input
L-ch Input
Description
L-CH PLAY signal input PORT.
GND
L-CH REC signal input PORT.
PLAY/REC Switch Control PORT.
GND
DC 12V
R-CH REC signal input PORT.
GND
R-CH PLAY signal input PORT.
Description
L-CH signal input PORT.
L-CH FEED BACK signal output PORT.
L-CH OUTPUT PORT.
DC 16V
GND
R-CH OUTPUT PORT.
R-CH FEED BACK signal output PORT.
R-CH OUTPUT PORT.
GND
Description
L-CH FEED BACK signal input PORT.
L-CH signal input PORT
L-CH signal output PORT
GND
ALC TIMING driving external constant CONNECTED PORT
DC 16V
R-CH REC signal output PORT.
R-CH REC signal input PORT.
R-CH FEED BACK signal input PORT
- 2-12 -
(V)
Remarks
5.3
5.3
5.3
0
0
5.3
5.3
5.3
5.3
5.3
5.3
0
10.6
5.3
5.3
0
0
5.3
5.3
5.3
5.3
5.3
5.3
5.3
(V)
Remarks
0
O
0
0
O
0.12
I
0
10.8
0
O
0
0
O
(V)
Remarks
1.3
I
0.7
O
3.3
O
11.5
0
3.4
O
0.7
O
1.3
I
0
(V)
Remarks
1.7
O
0
1.7
O
0
I
0
11.5
1.7
O
0
1.7
O
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