McIntosh C2300, Service Manual

Page: 22 / 40

39 40
TUBE
750643 SCH 3 OF 3
5C
J16:7
J16:6
2C
2C
2B
2B
2C
2C
GND
GND
GND
MAIN
GND
GND
0V
1V .8V
2C
2C
2C
J6:12
J6:11
J6:9
2C
2C
2C
0V
22
1k
R
59
1V
.1uF
C40
.8V
.22uF
C48
2C
2C J6:10
TO
M
A
IN
TUBE ON
TUBE ON
L MAIN 1
110V
10
uF
C
37
0V
0V
AMP
GND
R MAIN 2
TO
M
A
IN
R MAIN 1
110V
5
9
4
V5C
5
9
4
V6C
100k
R55
47
pF
C
43
1M
R
61
.1uF
C41
47
pF
C
42
1M
R
60
121V
22
.1
k
R
72
2
1
3
Q5
22
.1
k
R
69
22
.1
k
R
70
.22uF
C47
GND
GND
L MAIN 2
J16:8
2
1
3
Q6
22
.1
k
R
71
J2:7
J2:8
J16:3
J16:2
J16:4
J16:5
J16:1
47pF
C45
15K
R63
3.
32
k
R
58
1.
5k
R
66
120V
20
0k
R
67
47pF
C44
15K
R62
3
2
1
V5A
8
6
7
V5B
1uF
C51
1uF
C52
J6:1
J6:2
J6:5
1uF
C50
J6:3
1uF
C49
8
6
7
V6B
3
2
1
V6A
3.
32
k
R
56
22
1k
R
57
1.
5k
R
64
20
0k
R
65
J6:4
J6:6
J6:9
J6:7
J6:8
J3:6
J3:5
J6:10
J6:12
J6:11
175V1
175V1
175V1
236V
236V
236V
236V
24V
24V
236V
-24V
1k
R78
1k
R79
.22uF
C53
.22uF
C54
0V
0V
0V
120V
121V
0V
RIGHT
TUBE AMP
LEFT
TUBE AMP
0V
0V
12AX7A
12AX7A
12AX7A
12AX7A