McIntosh MC1.25KW - Connecting Loudspeaker Cables; Output Terminal Connection Steps

11 12
MAIN 752035 SCH 2 OF 3
2
D 17
VOLTAGE LOG AMP
M ET ER D RIVER
+14VM+14VM
6
5
7
U2 3 :2
D 15
D1 6
D9
D1 0
D1 4
2
3
1
8
4
B+
B-
U2 4 :1
+14VM+17V -5VM-17V
2
3
1
84
B+
B-
U3 0 :1
D7
D8
D1 1
+14VM
-5VM
D1 3
MUTE
6
5
7
U2 4 :2
Main-Meter
2
HOLD
-5VM
J8 :1
J8 :2
M E T E R
M ET
MET V-
CAL 2CAL 1
-5VM
MET V+
22.1k
R4 1
22.1k
R4 2
1 .8 2 k
R 43
1.82k
R4 5
4.99k
R4 8
47 5k
R 62
3 2 4
R 65
1 0 0
R 64
1 k
R 63
+1 7 V
-1 7 V
D5
D6
3.32k
R4 7
3.32k
R5 4
2
3
1
8 4
B+
B-
U2 2 :1
6.81k
R4 9
AUD IO DET ECT OR
100pF
C1 5
6
5
7
U2 2 :2
AUD D ET
10
R4 6
33.2k
R5 2
18.2k
R5 5
22.1k
R5 6
1 0 0
R 58
3
1
2
Q 15
3
1
2
Q 17
12
3
G
D
S
Q 18
1 2 .1k
R 61
47 5k
R 60
47 5k
R 59
1M
R3 9
1k
R5 1
5.1V
D1 2
100k
R5 0
100k
R5 3
2 2 0µF
C 20
2 2 0µF
C 16
12
3
G
D
S
Q 16
.22 µF
C 22
1µF
C 23
1000µF
C1 8
1000p F
C1 9
J7 :1
J7 :2
F U N C 1
F U N C 1
12
T 1
0.1 1 W
R 44
3
1
2
Q 13
3
1
2
Q 14
.1µF
C1 4
.1µF
C 17
.1µF
C 21
2
3
1
84
B+
B-
U2 3 :1
+14VM
-5VM
-5VM
+1 7 V
-1 7 V
AUDIO
AUDIO
22.1k
R7 0
6
5
7
U3 0 :2
-5VM
.1µF
C 40
.1µF
C 41
-1 7 V+1 7 V
1k
R4 0
SUM M IN G AMP
C U R R ENT LOG AMP
100k
R5 7