A B C D E F G H
1
2
3
4
5
6
I
J
K
L
M
N
O
7
8
9
10
38
KMA-1000/KMA-950
FUNCTION 2/3
* All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
* Components having special characteristics are marked
Z
and must be replaced
with parts having specifications equal to those originally installed.
* Schematic diagram is subject to change without notice.
MUSIC IN
MUSIC OUT
MIC MIX
MIC ECHO
MIC IN
MIC OUT
0
12.1
0
0
0
0
0
0
0
0
0
12.1
0
0
0
12.1
-11.5
0
0
0
12.1
-11.5
12.1
-11.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-11.5
-11.5
W303
CB304
W302
IC300
IC300
IC301
IC301
IC303
IC303
IC305
IC305
IC307
IC307
MIC AMP
MIC MIX AMP
ECHO MIX AMP
MUSIC TONE CONTROL
MIC TONE CONTROL
Page 41
D2
to OPERATION (4)_CB901
Page 37
A2
to FUNCTION (1)_CB2
Page 37
H3
to FUNCTION (1)_CB3
FUNCTION (2)
MIC VOL
MIC 1
MIC VOL
MIC 2
MIC VOL
MIC 3
BASS
TREBLE
MUSIC TONE
BASS
TREBLE
MID
MIC TONE
MUSIC TONE
MIC TONE
MIC TONE
MUSIC BALANCE
MIC ECHO
DELAY
MIC ECHO
REPEAT
IC300, 301, 303, 305, 307:
UPC4570G2-E1-A
Dual operational amplifier
+ –
+ –
1
2
3
4
8
7
6
5
OUT
1
OUT
2
–IN
1
+IN
1
+IN
2
-IN
2
–V
CC
+V
CC
KMA-1000
