AIWA NSX-A505 Service Manual - Page 14

Block, Diagram

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IC BLOCK DIAGRAM - 1 IC HA12185NT 0 25 8 3Nfl 26 2 24 23 22 21 20 19 18 17 16 B CR -1 1 L -CH I OdB -0 B R -CH • 139K B ag I- _J Wo CIE Ce Lai LEI - U 1 I VCC -1 't-1 B- I -]N PB-IN PB-IN PEI El- 1C7..1 4 6 7 B 9 10 11 12 LL ce IC, BA7762FS PB-CAL (R) PB-CAL 18 PB- EQ t9 PB- EQ iU 20 PH-NF (RI 21 PB- NF (L) 22 PH- ) N 23 PH-IN IL) 24 VREF 25 PB-RETURN 26 ]-4.) PLI- IN IR) 27 PB-IN 28 REC-RETURN 29 REC-OUT (R) 30 REC-OUT (L) 31 vCC 32 t OK C-AAA71 10, 1 .12' 2.26 2.7 O rc REC-EC, - 12dB R-CH L-Cti 16 PB-C AL CM IS PB-C AL (..) 14 PH-OUT (H) 13 PH-OUT Li 12 A/B 1 1 HSP 10 ACRO2 9 BCRO2 REC- iN-SEL 7 NC 6 I REF AUX (R) 4 AUX (LI 3 TAPE (R) TAPE (L) 1 ONO - 14 -

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IC
BLOCK
DIAGRAM
-
1
IC
HA12185NT
0
3Nfl
VCC
25
8
26
IC,
BA7762FS
a
g
I
OdB
I-
Wo
-1
't-1
2
24
23
22
21
20
1
L
—CH
B
-0
4
R
—CH
•
19
139K
B
18
17
-1
16
B
CR
6
7
B-
I
LL
ce
B
-]N
9
PB—IN
PB-IN
10
11
Lai
CIE
Ce
LEI
1
I
PEI
17.1
El-
C.
12
_J
-
U
PB-CAL
(R)
PB-CAL
18
PB-C
AL
CM
PB-C
AL
(..)
16
IS
PB-
EQ
PH
-OUT
(H)
t9
14
PB-
EQ
iU
20
13
PH
-OUT
Li
t
OK
C—AAA
71
10,
PH
-NF
(RI
21
12
A/B
PB-
NF
(L)
22
1 1
HSP
PH-
)
N
23
1
.12'
2.26
O
10
ACRO2
rc
PH
-IN
IL)
24
2.7
9
BCRO2
VREF
25
REC-
iN-SEL
PB-RE
T
URN
26
7
NC
]-
4.)
PLI-
IN
IR)
27
6
I
REF
PB-IN
28
AUX
(R)
REC-RETURN
REC
-
EC,
-<-
40
-.
0
--1—C>
AUX
(LI
29
4
12dB
REC-OUT
(R)
R
-CH
3
TAPE
(R)
30
REC-OUT
(L)
31
TAPE
(L)
vCC
32
L-Cti
1
ONO
-
14
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