McIntosh C2600 Service Manual page 12

3 DIGITAL
751731 SCH 1 of 3
J5
2
1
3
B
J6
1
2
T
R52
75
+3.3VD
L14
100µH
OPT1
R53
1
1.5k
3
2
R56
475
OPT2
R54
1
1.5k
3
2
OPT3
R55
1
1.5k
3
2
R58
475
C37
.1µF
GP2
R121
0
4-40
R122
0
C39
47µF
L6
SPDIF+
L7
SPDIF-
L8
DBCK+
L9
DBCK-
MCT INPUT
10
R51
47.5
7 9
11
J7
L10
DSDR+
L11
DSDR-
L12
DSDL+
L13
DSDL-
19
1 RUN
RESET
0 RESET
R59
75
C46
.01µF
C49 .01µF
C50 .01µF
C42 .01µF
C47 .01µF
R60
C51
1.5k
.01µF
R62
475
R63
3.32k
C48 C52
R57 .022µF 1000pF
475
+3.3VD +3.3VD
+3.3VD
R64
D3
U13 100k
1
Vcc
4
2
GND
C44
100pF
C40
.1µF
CD / SACD DETECTOR
+3.3VD +3.3VD
+3.3VD R65
D4
100k
U14
1
Vcc
4
2
GND
C45
100pF
+3.3VD
U12
1 16
1A EN1,2
2 15
1B 1Y
3 14
2A 2Y
4 13
2B Vcc
5 12
3A GND
6 11
3B 3Y
7 10
4A 4Y
8 9
4B EN3,4
C41
C43
.1µF
47µF
+3.3VD
L15
100µH
C55 C60
.1µF .1µF
+3.3VD
R70
47.5k
U17
C56
.01µF
R71
1 28
RXP3 OLRCK
R72
2 27
RXP2 OSCLK
R73
3 26
RXP1 SDOUT
C57 .01µF 4 25
RXP0 OMCK
5 24
RXN RMCK
6 23
C58 .01µF VA VD
7 22
AGND DGND
8 21
FILT VL
9 20
RST GPO0
R69
10 19
RXP4 GPO1 47.5k
11 18
RXP5 AD2/GPO2
12 17
RXP6 SDA/CDOUT I2C DA
13 16
RXP7 SCL/CCLK I2C CL
14 15
AD0/CS AD1/CDIN
S/PDIF RECEIVER
+3.3VD
U19
1
Vcc
4
1 USB ON 2
+3.3VD USB ON GND
0 USB OFF
C53
.1µF
1
+3.3VD DSD FL
2
1
Vcc
4
2
GND
U15
U18
+3.3VD
+3.3VD
U16 1 SACD
0 CD
1 Vcc
4 1
SACD FL Vcc
2 4
GND
2
MCT ON
GND
1 MCT ON
0 MCT OFF
DIN DSDR
U20
1
A/B
2
USB BCLK
1A
DIN BCLK
3
1B
4
1Y
5
USB DSDL 2A
DIN DSDL 6
2B
7
DSDL
2Y
8
GND
U25
+2.5V 3
VOUT VIN
C66
47µF
C65
.1µF U26
1
XTO SRC_UNLOCK
1 3 2
XTI SAIF
3
VD SAOF
C63 Y3 C64
4
GND VL
12pF 27MHz 12pF
5
RST GND
6
BYPASS MS_SEL
100
7
ILRCK OLRCK
47.5
8
ISCLK OSCLK
47.5
9
SDIN SDOUT
10
+3.3VD MCLK_OUT TDM_IN
R75
47.5k
SAMPLE RATE
CONVERTER
+3.3VD
C61
.1µF
R74
33.2k
+3.3VD
U21
DSD
Vcc
4
GND
+3.3VD
U22
1
USB I2SLRCK Vcc
4
2
GND
+3.3VD
C62
.1µF
+3.3VD
U23
1
USB I2SDATA Vcc
4
2
GND
+3.3VD
C67
+3.3VD
.1µF
U24
1
Vcc
4
2
GND
USB / DIN BCLK
+3.3VD
16
Vcc
15
G
14
4A
13
4B
12
4Y
11
3A USB DSDR
10
3B
9
3Y DSDR
20
1
+3.3VD
C69
47µF
C70
.1µF
20 R79
1k
19
18
17
R77 R82
16 3.32k R80 4.75k
1.96k
15
14
13
12
11
R76 R78 R81
100 47.5 47.5
+3.3VD
C68
.1µF
+3.3VD
U27
1 16
A/B Vcc
2 15
1A G
3 14
1B 4A
4 13
1Y 4B
5 12
2A 4Y I2SBCLK / DSDBCLK
6 11
2B 3A
7 10
2Y 3B
8 9
GND 3Y I2SDATA / DSDL
I2SDATA / DSDR
I2SLRCK / DSDL