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McIntosh C2600 Service Manual

McIntosh C2600
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C2600
21 22
DIGITAL 751731 SCH 2 of 3
3
4-40
GP1
+3.3VD
DM
16
VDD
13
VDD
14
DSD_128_FLAG
11
VDD18
8
SOF_FLAG
9
SPDRX
6
VDD18OUT
3
VDD
4
VDD
1
TEST6
64
TEST3
61
TEST4
62
TEST1
59
VDD
56
REFCLKIN
57
SCL1
54
MCLK1
51
VDD
52
SCLK1
49
GPIO4
33
GPIO7
36
GPIO6
35
RESETN
38
SDA
41
SCL
40
VDD18
43
MCLK0
46
SDATA00/DSD_DL
45
SPDTX
48
DP
15
VDD
7
GND
5
REXT
12
DSD_FLAG
10
GND
2
GND
17
VDD18
20
XO
19
GND
22
GND
25
VDD
24
GPIO0
27
GPIO1
30
VDD
29
GPIO3
32
GPIO5
34
GPIO8
37
VDD
39
SCLK0/DSD_CLK
42
VDD
44
LRCLK0/DSD_DR
47
TEST5
63
VDD18
58
LRCLK1
53
TEST2
60
SDA1
55
SDATA10
50
X1
18
GND
23
VDD18
28
VDD
21
VDD
26
GPIO2/USB(HS/FS)SEL
31
U4
47.5
R1
.1µF
C4
47.5
R3
6
4
2
3
5
1
PWR
D-
D+
GND
CASE
CASE
J1
D1 D2
.1µF
C21
L4L3
10µF
C19
.1µF
C13
22.1
R6
10µF
C11
.1µF
C16
.1µF
C20
.1µF
C23
.1µF
C17
.1µF
C10
.1µF
C18
.1µF
C15
12pF
C5
12pF
C2
.1µF
C9
270R19
10k
R21
10kR23
10k
R24
10k
R25
10k
R26
10k
R27
10k
R28
100
R16
100
R17
10k
R13
10k
R15
10k
R12
4
2
1
3 5
Vcc
GND
U6
33.2k
R22
DS1
SOF
22.1
R2
22.1
R5
47.5k
R4
.1µF
C7
L2
.1µF
C1
47µF
C8
WP
7
SCL
6
VCC
8
SDA
5
A1
2
A2
3
A0
1
GND
4
U3
24MHz
31
Y1
100µF
C14
REF
9
NC
10
NC
11
GND2
12
VDD2
13
S3
14
NC
15
XIN
16
XOUT
1
S0
2
S1
3
S2
4
VDD1
5
GND1
6
NC
7
CLK
8
U1
10k
R18
10k
R10
10k
R9
10k
R8
10k
R7
10k
R14
90OHM
L1
10k
R11
.1µF
C6
+3.3VD
DSD 64
1
0
DSD 128
PCM
0
1
+3.3VD
+3.3VD
SOF
+3.3VD
+1.8VUSB
12MHz
USB DP
USB DM
+3.3VD +3.3VD +3.3VD +3.3VD
1.5k
R34
HSD2+
3
D+
4
D-
6
GND
5
SEL
1
HSD1-
8
HSD1+
2
HSD2-
7
OE
9
VDD
10
U2
USB1 -
USB1 +
.1µF
C12
USB 1/2
USB OE
+3.3VBU
USB SWITCH
0
1
ATTACHED
DETACHED
0
1
MAIN MICRO
USB AUDIO
DSD
+3.3VD+3.3VD
+3.3VD
AUTOMUTE
12pF
C31
12pF
C30
TCK
TDI
TDO
TMS
.1µF
C35
.1µF
C32
.1µF
C27
221
R48
221
R47
1k
R38
.1µF
C28
.1µF
C36
.1µF
C24
12.00MHz
Y2
I2C CL
I2C DA
22.1
R35
22.1
R36
.1µF
C33
3.3µH
L5
PA20/PGMD8/AD3
16
PA19/PGMD7/AD2
13
PA22/PGMD10/AD9
14
PA21/PGMD9/AD8
11
VDDOUT
8
PA17/PGMD5/AD0
9
PB3/AD7
6
PB0/AD4
3
PB1/AD5
4
ADVREF
1
VDDPLL
64
XOUT/PB8
61
XIN/PGMCK/PB9
62
PB13/DAC0
59
DDM/PB10
56
DDP/PB11
57
VDDCORE
54
TMS/SWDIO/PB6
51
PA31
52
TDO/TRACESWO/PB5
49
TDI/PB4
33
PA4/PGMNCMD
36
PA5/PGMRDY
35
PA28
38
PA29
41
TST
40
PA3
43
GND
46
VDDIO
45
PA0/PGMEN0
48
PA23/PGMD11
15
VDDIN
7
PB2/AD6
5
VDDCORE
12
PA18/PGMD6/AD1
10
GND
2
GND
17
PA15/PGMD3
20
PA16/PGMD4
19
PA13/PGMD1
22
PA25/PGMD13
25
VDDCORE
24
PA12/PGMD0
27
PA9/PGMM1
30
PA10/PGMM2
29
PA7/XIN32/PGMNVALID
32
PA6/PGMNOE
34
PA27/PGMD15
37
NRST
39
PA30
42
PA2/PGMEN2
44
PA1/PGMEN1
47
PB14/DAC1
63
VDDIO
58
TCK/SWCLK/PB7
53
GND
60
ERASE/PB12
55
JTAGSEL
50
VDDIO
18
PA24/PGMD12
23
PA11/PGMM3
28
PA14/PGMD2
21
PA26/PGMD14
26
PA8/XOUT32/PGMM0
31
U9
+1.2VM
GPIO3
GPIO4
GPIO5
GPIO6
RST
ERASE
S1
S2
RESET
USB2 +
USB2 -
J3:17
J3:1
J3:15
J3:14
J3:5 J3:6
J3:9
J3:12
J3:13
USB1 +
USB1 -
USB 1/2
USB OE
+3.3VBU
+3.3VD
CONTROL
DAC TXD
DAC RXD
USB OE
USB 1/2
+3.3V
GND
USB1 +
USB1 -
+3.3VBU
USB RST
USB INPUT
CLOCK GENERATOR
1
0 " CD "
" SACD "
1 0 " DSD 64 "
1 1
x
" DSD 128 "
PA7
1 000
10 00
0 00 0
1 1 10
1100
111 0
1010
1100
1 00 0
" 32kHz "
" 44.1kHz "
" 48kHz "
" 88.2kHz "
" 96kHz "
" 176.4kHz "
" 192kHz "
" 352.8kHz "
" 384kHz "
J3:16
J3:18
TCK
TDI
TDO
TMS
6
4
2
3
5
1
7 8
9 10
11 12
13 14
15 16
USB - USB +
TCK
TMS
TDO
TDI
RXD
TXD
TST
GND
GND
NRST
+3.3V
GND
GND
GND
J2
I2C CL
I2C DA
.1µF
C34
A = 0 0 0 (0)
33.2k
R41
DS8
+3.3VD
33.2k
R40
DS7
+3.3VD
33.2k
R39
DS6
+3.3VD
DSD FL
OPT 1
OPT 2
4
2
1
3
Vcc
GND
5
U8
+3.3VD
10k
R33
+3.3VD
MCT ON
33.2k
R29
DS2
4
2
1
3
Vcc
GND
5
U11
+3.3VD
10k
R37
+3.3VD
USB ON
33.2k
R50
DS9
OPT 3
33.2k
R32
DS5
+3.3VD
33.2k
R31
DS4
+3.3VD
COAX 1
COAX 2
10k
R45
10k
R43
DSD128 FL
DSD128 FL
x
x
x
x
x
x
x
x
x xx
xx
x
xx
PA8
PA9
PA10
0
0
0
0
0
0
0
0
0
1
0
" SILENT "xxxxx x
0
1
0
0
PA16
PA15
" SILENT "x
DSD FL
+3.3VD
+3.3VD
+3.3VM
+3.3VM
MUTE
MCT DISPLAY
6
4
2
3
5
1
PWR
D -
D +
GND
CASE
CASE
J4
47.5
R49
47.5
R44
+3.3VM
USB RST
USB RST
J3:10
J3:3J3:4
J3:7
1000pF
C3
33.2k
R30
DS3
Q3
7
VSS
8
Q1
5
A1
2
A2
3
Q4
9
Q5
10
Q7
12
SDA
15
SCL
14
Q2
6
A0
1
Q0
4
Q6
11
VDD
16
NC
13
U10
DBUG RX
DBUG TX
DBUG RX
DBUG TX
10µF
C22
10µF
C26
10µF
C25
GPIO0
PA11
PA12
PA14
PA16
x
0
0
0
0
0
0
0
0
0
1 " DSD 256 "xx0
x
x
x
x
x
x
x
x
x
x
x
1 100
SACD FL
100
R42
100
R46
USB DISPLAY
2
2
2
2
2
2
2
2
2
2
10k
R20
3
2
1
7 14
Vcc
GND
U5:1
+3.3VD
USB DSDR
4
2
1
3
Vcc
GND
5
U7
+3.3VD
USB BCLK
6
5
4
U5:2
DSD FL
USB DSDL
8
10
9
U5:3
11
13
12
U5:4
MCT ON
USB I2SLRCK
USB I2SDATA
.1µF
C29
+3.3VD
0
R119
0
R120

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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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