Cambridge Audio 640C - DAC PCB Schematic

Cambridge Azur 540C CD Player
AP13111/5 DAC PCB Schematic
AC2
AC1
DIN
D.GND
GND
MCLK_OUT
D.GND
VCC
8
CLK
5
N/C
1
GND
4
X1
OSC DIL08
FREQ=16.9344MHz
1 2
U10:A
74HC14
3 4
U10:B
74HC14
VD2
GND
D1
1N4002
D4
1N4002
D2
1N4002
D3
1N4002
VI
1
VO
3
GND
2
U4
7815
VA1
VA2
VI
1
VO
3
GND
2
U8
7805
C46
47uF
VD2
1
2
3
4
5
CN6
DATA
1
2
3
CN1
POWER
C2
47uF
LEFT CHANNEL
RIGHT CHANNEL
VD1
VI
1
VO
3
GND
2
U1
7805
5 6
U10:C
74HC14
VI
2
VO
3
GND
1
U3
7915
1
2
3
CN2
DOUT
GND
C28
100n
R34
100R
R33
2R2
2
1
CN7:A
RCA-DV
3
CN7:B
RCA-DV
13 12
U10:D
74HC14
R31
91R
R32
430R
C27
100n
C24
2200uF
C3
2200uF
R24
22R
R25
22R
GND
R2
22R
C22
100n
SDATA
LRCK
11 10
U10:E
74HC14
9 8
U10:F
74HC14
+21V UNREG
-21V UNREG
R1
100R
CHASSIS
Q2
C8050
Q4
C8050
1
2
RL1:A
5V RELAY
C32
47uF
R27
330k
R30
2k2
D6
1N4148
+21V UNREG
R29
680R
3
4
5
RL1:B
9V RELAY
6
7
8
RL1:C
9V RELAY
1
2
CN5
MCLK_LOCK D.GND
VA1
Q1
C9012
R35
10k
R36
1k
D5
1N4002
C29
4.7uF
AC1
R26
100R
DEM
BCLK
Q3
C9012
R38
4k7
1
2
CN3
MUTE
12
3
CN4
RCA-SNG
C26
100n
GND
1
VCC
2
INPUT
3
U11
APTX179AT
R28
430R 2W
C25
100n
LRCIN
1
DIN
2
BCKIN
3
MODE8X
4
SCLK
5
DIFFHW
6
DGND
7
DVDD
8
AVDDR
9
AGNDR
10
VMIDR
11
VOUTRP
12
VOUTRN
13
AGND
14
AVDD
15
VOUTLN
16
VOUTLP
17
VMIDL
18
AGNDL
19
AVDDL
20
ZERO
21
RSTB
22
CSBIWO
23
MODE
24
MUTEB
25
MD/DM0
26
MC/DM1
27
ML/I2S
28
U7
WM8740
3
2
1
8
4
U6:A
NE5532
5
6
7
U6:B
NE5532
C5
10n PE
C4
10n PE
C40
1n5 ML
C38
1n5 ML
VA2
VA1
R22
4k7
R23
4k7
C43
100p PP
C37
100p PP
R20
11k
R19
11k
R16
5k6
R17
5k6
C44
2n2 PP
C41
2n2 PP
R21
2k7
R18
2k7
3
2
1
8
4
U5:A
NE5532
5
6
7
U5:B
NE5532
C11
1n5 ML
C8
1n5 ML
VA2
VA1
R5
4k7
R6
4k7
C14
100p PP
C9
100p PP
R4
11k
R7
11k
R10
5k6
R8
5k6
C10
2n2 PP
C12
2n2 PP
R3
2k7
R9
2k7
C16
1n5 ML
VD1
C19
1n5 ML
C18
100n
C17
1n5 ML
C20
1n5 ML
C15
1n5 ML
C35
100uF NP
C34
100uF NP
C36
2n2 PP
C33
2n2 PP
1 2
U2:A
74HC14
3 4
U2:B
74HC14
5 6
U2:C
74HC14
13 12
U2:D
74HC14
11 10
U2:E
74HC14
9 8
U2:F
74HC14
VD3
VD2
C39
47p
C7
47p
R14
2k2
R15
2k2
R11
2k2
R12
2k2
C42
2n2 PP
C13
2n2 PP
D7
1N4148
VD3
C30
47uF
VI
1
VO
3
GND
2
U9
7805
GND
C31
100n
C1
10n PE
C48
10n PE
R37
1k
C45
10U 25V NP
C21
10U 25V NP
C47
10U 25V NP
C6
10U 25V NP
C23
10U 25V NP
VI
1
VO
3
GND
2
U12
7805
VD4
GNDGND
VD4
86-756-8687998
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