Cambridge Audio Azur 840C, Руководство по обслуживанию

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Cambridge Audio Azur 840C CD Player
Functional Block Diagram
DSP
DC
SERVO
CIRCUIT
CURRENT
SOURCE
CIRCUIT
IT
OV
IT
OV
DIFFEREN
TIAL
FILTER/AMP
DIFFERENTIAL
T
O
SINGLE
ENDED
UNBALANCED
O
/P
BALAN
C
E
D
O
/P
DAC
W
D
CLK
BITCL
K
SDAT
A
L
RE
SE
T
MUT
E
D
A
C
CONTROL
I/F
D
A
C1
M
CLK
24.576
MHz
CLOCK
+
BUFFER
SPDI
F
T
X
C
L
K
SPDI
F
R
X
M
C
L
K
DAC
2
MC
L
K
DAC
1
MC
L
K
DSP
C
L
K
W
D
CLK
BITCL
K
SDAT
A
L
SPDI
F
RX
SE
T
U
P
I/
F
W
D
CLK
BITCL
K
SDAT
A
L
(SPDI
F
SUBC
O
D
E
D
AT
A)
SPDI
F
T
X
S
E
T
UP
I/
F
AUDIO
DATA
LEFT
FLASH
MEMORY
SPDIF
RECEIVER
TRANSMITTER
AUDIO
DATA
L
&R
SPDIF
F
L
ASH
ADDRE
S
S
&
DAT
A
SPDIF
T
O
LOGIC
LEVEL SPDIF
T
O
LOGIC
LEVEL
SP
DIF
I/P
1
SP
DIF
I/P
2
SP
DIF
I/P
SWITCHING
OPTICAL
COAX COAX
OPTICAL
LOGIC
T
O
S
P
D
IF
LEVEL
SPDIF
O
/P
COAX
OPTICAL
44.1 kHz
PASS
THRO'
S
E
T
T
IN
G
44.1/48/96/192
kHz
44.1
kHz
FROM
C
D
S
ERVO
PAS
S
THR
O'
SETTING
48/96/192
kHz
U
P/DOW
N
SAMPLED
CD
SERVO
TO
M
E
CH
CONNECTIONS
DC
SERVO
CIRCUIT
CURRENT
SOURCE
CIRCUIT
IT
OV
IT
OV
DIFFEREN
TIAL
FILTER/AMP
DIFFERENTIAL
T
O
SINGLE
ENDED
UNBALANCED
O
/P
BALAN
C
E
D
O
/P
DAC
W
D
CLK
BITCL
K
SDAT
A
L
RE
SE
T
MUT
E
DAC
S
E
T
UP
I/
F
D
A
C2
M
CLK
DAC
PCB
MECH
A
ND
SERVO
PCB
B
C
P
O
V
R
E
S
H
C
E
M
SP
DIF
I/P
SWITCHING
CD
S
E
RVO
T
O
L
CD
CONNECTIONS
PSU
M
ICROCONTROLLER/D
S
P
INTERFA
C
E
M
ICRO
T
O
LCD
(DO
T
MAT
R
IX
)
MICROCONTROLER
(PIC)
RS232
IR
U
N
MO
D
I/P O/
P
I/P
IR
MO
D
D
R
A
W
ER
OP
EN
CLOS
E
CONNECTIONS
D
R
A
W
ER
OP
EN
CLOS
E
CONNECTIONS
LCD
DRAWER
SPEED
CONTRO
L
KEY
COMMANDS
T
O
S
E
R
VO
(DI
G
IT
A
L
P
O
T
F
O
R
R
E
S
L
ADDE
R
I/
P)
DIGITAL
P
O
T
K1
K2
I/P
FRONT
P
ANNEL
BUTTON
S
M
ICRO
T
O
LCD
(DO
T
MAT
RI
X
)
FR
O
N
T
P
AN
E
L
IR
MOD
I/P
IR
MOD
FROM
REMOTE
SPDIF
I/P
SWITCHING
C
ONTROL
DSP
C
L
K
AUDIO
DATA
L
&R
SPDI
F
T
X
C
L
K
SPDI
F
R
X
M
C
L
K
RS232
(LOGIC
LEVELS)
MODULATED
IR
LEFT
CH
RIGHT
C
H
RE
SE
T
UB
IT
RE
SE
T
(SPDI
F
SUBC
O
D
E
D
AT
A)
CB
IT
(SPDI
F
SUBC
O
D
E
D
AT
A)
UB
IT
X1
U15
U4 CN3 U5 CN4
U10 CN5
U23 U23
U6
U7 U9
44.1
k
Hz
FROM
C
D
S
ERVO
44.1
kHz
FROM
C
D
S
ERVO
U8
FRONT
PANEL
PCB
U11 U12
U13
U19
U20
U32
U130 U131
U33 U34
U38 U37
U39
U40
U41
U
5
2Q
7Q
9
CN12
CN13
CN14
U35
U50
U46
U53
Q
3
Q
5
U1
R
ELA
Y
MUTE
CIRCUIT
AUDIO
O
/P
RL1
RL2
RL3
Q
2
Q
4
Q
8
O
E
I(P
IC
MU
TE
)
U3
2
U
5
U
4
U
U28
U1
U2
U3
Q1
AUDIO
DATA
LEFT
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