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McIntosh C2600 Service Manual

McIntosh C2600
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19 20
DIGITAL 751731 SCH 1 of 3
3
3.32k
R63
475
R57
75
R59
.1µF
C55
.1µF
C60
47.5k
R70
100
R71
47.5
R72
47.5
R73
.01µF
C46
.01µF
C49
.01µF
C50
COAX 1OPTI 1
1.5k
R54
DIGITAL AUDIO INPUTS
.1µF
C40
100µH
L14
100µH
L15
.1µF
C65
.1µF
C70
100
R76
47.5
R81
47.5
R78
+3.3VD
1.96k
R803.32k
R77
4.75k
R82
1k
R79
47.5k
R75
VOUT
3
GND
2
VIN
1
TAB
4
U25
12pF
C63
12pF
C64
27MHz
31
Y3
1.5k
R60
475
R62
47.5k
R61
DSDL+
DSDL-
DSDR-
DBCK-
SPDIF-
DSDR+
DBCK+
SPDIF+
47.5
R68
47.5
R66
47.5
R67
47.5
R51
.1µF
C41
EN3,4
9
4Y
10
3Y
11
GND
12
Vcc
13
2Y
14
1Y
15
EN1,2
16
1A
1
1B
2
2A
3
2B
4
3A
5
3B
6
4A
7
4B
8
U12
CD / SACD DETECTOR
MCT INPUT
4
2
1
3
Vcc
GND
5
U15
4
2
1
3
Vcc
GND
5
U16
100k
R64
.1µF
C53
100k
R65
100pF
C44
100pF
C45
4
2
1
3 5
Vcc
GND
U13
4
2
1
3 5
Vcc
GND
U14
L6
L7
L8
L9
L10
L11
L12
L13
.01µF
C57
1000pF
C52
D3
D4
3
6
1
2
5
8
7
4
9
11
10
J7
+3.3VD
+3.3VD
+3.3VD +3.3VD
+3.3VD
+3.3VD
+3.3VD
+3.3VD
+3.3VD
DIN SPDIF
+3.3VD
+3.3VD
+3.3VD
+3.3VD
+2.5V
SDOUT
12
OLRCK
14
MS_SEL
15
VL
17
SAIF
19
SRC_UNLOCK
20
TDM_IN
11
OSCLK
13
GND
16
SAOF
18
SDIN
9
ILRCK
7
BYPASS
6
GND
4
XTI
2
XTO
1
MCLK_OUT
10
VD
3
RST
5
ISCLK
8
U26
3
2
1
OPT2
COAX 2OPTI 2
3
2
1
OPT1
475
R56
1.5k
R53
I2C CL
I2C DA
47.5k
R69
RESET
RXP6
12
RXP7
13
RXP4
10
AGND
7
FILT
8
RXN
5
RXP2
2
RXP1
3
SDA/CDOUT
17
SCL/CCLK
16
GPO1
19
DGND
22
VL
21
RMCK
24
OSCLK
27
SDOUT
26
RST
9
RXP5
11
AD0/CS
14
RXP3
1
RXP0
4
VA
6
GPO0
20
AD2/GPO2
18
AD1/CDIN
15
OLRCK
28
OMCK
25
VD
23
U17
.01µF
C47
.01µF
C51
.01µF
C56
.01µF
C42
.022µF
C48
.01µF
C58
GND
8
3Y
9
2B
6
3A
11
1B
3
4A
14
A/B
1
Vcc
16
1A
2
1Y
4
2A
5
2Y
7
3B
10
4Y
12
4B
13
G
15
U20
+3.3VD
GND
8
3Y
9
2B
6
3A
11
1B
3
4A
14
A/B
1
Vcc
16
1A
2
1Y
4
2A
5
2Y
7
3B
10
4Y
12
4B
13
G
15
U27
+3.3VD
USB ON
4
2
1
3
Vcc
GND
5
U23
+3.3VD
4
2
1
3
Vcc
GND
5
U22
+3.3VD
4
2
1
3
Vcc
GND
5
U24
+3.3VD
I2SLRCK / DSDL
I2SDATA / DSDR
I2SDATA / DSDL
DSDR
DSDL
+3.3VD
SRC BCLK
SRC DATA
SRC LRCK
DIN DSDR
DIN DSDL
DIN BCLK
1
0 RESET
RUN
1
0
USB ON
USB OFF
S/PDIF RECEIVER
SAMPLE RATE
2
3
1
T
B
J6
4
2
1
3
Vcc
GND
5
U19
+3.3VD
4
2
1
3 5
Vcc
GND
U18
+3.3VD
MCT ON
1
0
MCT ON
MCT OFF
3
2
1
OPT3
475
R58
1.5k
R55
4-40
GP2
.1µF
C37
1
2
J5
47µF
C39
47µF
C43
10µF
C54
10µF
C59
47µF
C69
47µF
C66
SACD FL
1
0
SACD
CD
COAX 1
CONVERTER
33.2k
R74
DS10
DSD
USB I2SLRCK
USB BCLK
USB DSDR
USB DSDL
USB I2SDATA
I2SBCLK / DSDBCLK
USB / DIN BCLK
4
2
1
3
Vcc
GND
5
U21
+3.3VD
DSD FL
.1µF
C67
+3.3VD
.1µF
C62
+3.3VD
.1µF
C68
+3.3VD
.1µF
C61
+3.3VD
0
R121
0
R122
75
R52

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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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