JVC MX-GT90 Service Manual page 36

MX-GT90
BA3837(IC466):MIC mixer
1.Block diagram
C
16
15
LOGIC
1
VCC MIC
2.Pin function
Symbol
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 CONTB
16 CONTC
1-36
B ROUT
A
13
14
+
-
SW2
- +
+
-
2 3
4
LOUT FK
I/O
Power supply
VCC
-
Microphone mixing input
MIC IN
I
Channel L output
LOUT
O
Non connect
FK
-
Non connect
TK
-
Channel L input
LIN
I
Signal bias
BIAS
I
Connect to GND
GND
-
Channel R input
RIN
I
Connects to LPF time constant element
LPF1
O
Connects to LPF time constant element
LPF2
O
LPF outpout
LPF3
O
Channel R output
ROUT
O
Mode select input A
CONTA
I
Mode select input B
I
Mode select input C
I
LP LP LP
12 11 10
-
+
R
L+R
+
-
SW1
+
L-R
L
+ -
7
6
5
BIAS
LIN
TK
Description
RIN
9
- +
8
GND