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IC Block Diagrams (Main Section)
IC305 LA2010
IC302 BH3854AS
IC301 TA2068N
21
22
23
24
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
LOGIC
7dB
26dB
26dB
7dB
ALC1
ALC2
DET
MIC
AMP1
1k
10k
NAB
AMP2
NAB
AMP1
ON
MUTE
MUTE
MUTE
BUF AMP
A2
BUF AMP
A1
BUF AMP
B1
BUF AMP
B2
TAPE
TAPE
–––––
TAPE
–––––
LINE
RADIO
10k
10k
10k
1k
1k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
15k
6k
1k
6k
LINE
RADOI
TAPE
REC
AMP1
REC
AMP2
REF AMP
2.1
ON
ON
MONITOR
AMP
MONITOR
AMP
LINE-L
MIC
I/EX
TU-L
OUT-L
REC
TAPE
LINE-R
MIC
OUT-R
LINE/RADI
O
TU-R
VCC
MIC
R. PO
RNF
R. RO
RIN
GND
REF
LIN
L. RO
LNF
L. PO
AGC
BIN1
BVO1
TIN1
TVO1
AGND
IN1
NF2
BVN1
OUT1
VCC
SC
PORT1
DGND
BIN2
BVO2
TIN2
TVO2
OUT2
VC
TC
BC
CLK
DATA
LATCH
VREF
28
DVN2
29
NF2
30
IN2
31
FILTE
R
32
4
3
2
1
27
26
25
24
23
20
19
18
17
5
6
7
8
9
10
11
12
13
14
15
16
22
21
TONE
TONE
CONTROL
MATRIX
SURROUND
VR
VR
PORT2
PORT3
PORT4
2
3
5
4
6
7
8
9
1
AMP
IN PUT
DET OUT
NF
TIME
GND
OUT PUT
VCC 2
GND
VCC 1
COMP(1)
COMP(2)
RESET
HOLD