MX-KA3
1-24
1. Block Diagram
Optical disc ICs HA12237F (IC401)
B
A
B
A
+
PB-NF2(R)
MUTE
MUTE
93/120
(High/Norm)
93/120
(High/Norm)
EQ
EQ
ALC
31
NC
10
9
8
NC
7
6
5
4
3
2
EQOUT(R)
RECIN(R)
TAI(R)
PB-EQ(R)
ALC(R)
1
32
33
34
35
36
37
38
NC
39
PB-NF1(L)
AIN(L)
RIP
40
20
19
18
17
16
15
14
13
12
11
ALC ON/ OFF
Return SW
Return SW
PBOUT(R)
+
PB-NF1(R)
+
+
AIN(R)
BIN(L)
GND
V
CC
ALC DET
GND
IREF
Test mode
(Open for normal use)
REC-
RETURN
BIN(R)
+
RECOUT(R)
PB-NF2(L)
NC
NC
EQOUT(L)
RECIN(L)
TAI(L)
PB-EQ(L)
ALC(L)
PBOUT(L)
RECOUT(L)
+
+
+
High/ Norm
A/
(REC Return ON/ OFF )
MUTE ON/ OFF
REC MUTE OFF/ ON
21
22
23
24
25
26
27
28
29
30
+
+
Pin Description, Equivalent Circuit (cont)
(V
CC
= 12V, Ta = 25˚C, No Signal, The value in the table shows typical value.)
Pin No.
Pin Name
Note
Equivalent Circuit
Description
33
RIP
V = V
CC
/2
V
CC
GND
V
Ripple filter
29
PB-EQ(L)
2
PB-EQ(R)
NAB output