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McIntosh C2600 Service Manual

McIntosh C2600
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51 52
TUBE 751901 SCH 3 of 3
11
1.2V
0V
RIGHT MM
4
J28:10
TO LEFT AUDIO
TO AUDIO PCB
681K
R52
681K
R51
.01µF
C30
.01µF
C29
GND
GND
1.2V
0V
PHONO AMP
0V
90V
PHONO AMP
L MM OUT
J12:2
J12:1
4
4
J13:1
J13:2 4
4
953
R49
86V
47pF
C26
LEFT MM
953
R47
86V
47pF
C25
1000pF
C39
75K
R63
1V
2.21M
R54
12AX7A
3
2
1
V2:1
1000pF
C40
75K
R64
1V
2.21M
R53
4.75k
R59
12AX7A
8
6
7
V1:2
10µF
C24
90V
10k
R72
10k
R68
GND
4.75k
R50
4.75k
R48
4.75k
R60
475k
R62
47.5k
R45
475k
R61
MC IN R
MM IN L
J7:2
J7:1
12AX7A
8
6
7
V2:2
J61:1
J61:2
12AX7A
3
2
1
V1:1
3300pF
C31
1M
R57
10µF
C38
1µF
C41
3300pF
C35
1M
R58
1µF
C42
190V
190V
190V
190V
180V
180V
180V190V
18V1
10pF
C33
10pF
C34
10µF
C37
-18V1
190V
GND
TUBE RED
18V2
2
2
2
2
J19:7
2
J19:6
2
J19:5
J19:3
TUBE GRN
-18V2
-18V1
J19:8
2
J19:1
J19:2
J4:8
J4:1
J4:3
J4:7
J4:2
J4:5
J4:4
J4:6
190V
-18V2
-18V1
TO CONTROL
47.5k
R46
47µF
C27
47µF
C28
18V1
18V1
R
4
3
DS1:1
R
4
3
DS2:1
R
4
3
DS3:1
G
5
2
DS1:2
G
5
2
DS2:2
G
5
2
DS3:2
B
6
1
DS1:3
B
6
1
DS2:3
B
6
1
DS3:3
18V1
15k
R27
4.75k
R75
J3:5
J3:6
J3:4
J3:3
J3:2
J3:1
R MM OUT
J28:9
J28:11
J28:8
J28:7
J28:12
GND
18V1
220pF
C36
100K
R56
100K
R55
220pF
C32
-18V1
100µF
C20
-16V
-16V
-16V
-16V
-16V
J19:4
18V1
2
1
3
Q3
2
1
3
Q4
2.21k
R74
27.4k
R67
27.4k
R66
27.4k
R65
27.4k
R71
27.4k
R70
27.4k
R69
2.21k
R73
18V2
2.21k
R29
RED
Check values
Check values
GREEN
12AX7A
5
9
4
V2:3
12AX7A
5
9
4
V3:3
12AX7A
5
9
4
V1:3
4
4
4
4
4
2

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McIntosh C2600 Specifications

General IconGeneral
Signal to Noise Ratio100dB
Phono StageYes
Digital USB Input1
Digital MCT Input1
Vacuum TubeYes
TypeTube Preamplifier
Frequency Response20Hz - 20kHz (+0, -0.5dB)
Phono Inputs1 Moving Magnet 1 Moving Coil
Outputs3 Total
Output Impedance100 ohms
Dimensions17.5" (44.45cm) x 6" (15.24cm) x 18" (45.72cm)
Headphone Output1/4" High Drive with Headphone Crossfeed Director (HXD®)

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