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IC BLOCK DIAGRAMS (CONT.)
Audio Processor (IC3001)
IN1a
MONa
MONb
SEL
-2dB
-2dB
AGC
AGC
SR FIL
1
IN2a 2
IN3a 3
IN4a 4
VOL 1
TONE
TONE
NJRC
Sorround
"eala"
&
Simulated
Stereo
IN1b
SEL
30
5
20
IN2b 29
IN3b 28
IN4b 27
26
TONE
-Hb
24
VOL 1
VOL 2
IICBUS
Interface
VOL 2
6
OUTa
10
LINEa
OUTb LINEb
Vref
Vcc
7
8
+4.5dB
+4.5dB
TONE
-Lb
TONE
-Ha
TONE
-La
23
17
16
GND
15
CSR
25
CTL
18
CTH
19
CVB
12
CVA
11
SCL
14
SDA
13
9
21
22
Bias
Audio AMP (IC001)
2
5
7
6
1
3
10
12
8
4
Standby SW
CH 1
Input
PRE-GND
(For input)
CH 2
Input
CH 1
Output
Standby
Vcc
Filter
P. P.
POWER
GND
(For output)
CH 2
Output
Protect popped noise
CH 1
AMP
(in)
REF
AMP
CH 2
AMP
(in)
CH 1
AMP
(out)
CH 2
AMP
(out)
TSD Protector
(Thermal protection curcuit)
Ripple Filter Block
RNf1
Rf1
RNf2
Rf2