Arcam Alpha 7 Manual de servicio - Página 16
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1
2
Alpha 7 CD Configuration Plug
SK2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D
DIL16 HSKT
P5V DAC(A7)
Flex connector from CDM14 mech
SK201
23
SCLK
22
SUBQ
21
SENSE
20
XLT
19
LDON
L4
R23
18
FOK
33UH AX
120R
17
P5V
GFS
16
15
DIGOUT
14
13
XRST
C24
C
12
AMUTE
100U EL
11
SQCK
C12
10
SCOR
10N CD
9
DATA
8
CLK
+
BCLK
7
BCLK
6
ADATA
5
LRCK
4
WDCK
WD
LRCK
R16 330R MF
3
2
P7V
17MHZ
1
P5V DAC(A7)
FFC23V
WDCK 17MHZ
P5V DAC
PL1
DIL16 VPLG
TP8
LRCK
2
1
LRCK
4
3
TP9
ADATA
ADATA
6
5
TP10
P11V CLK
BCLK
BCLK
8
7
10
9
12
11
R49
14
13
16
15
120R MF
SMUTE
XRST
B
Z203
78L05
I
Vin
Vout
2
1
Z202A 74HCU04
+ C26
C25
100U EL
22U EL OS
4
3
Z202B 74HCU04
6
5
Z202C 74HCU04
A
1
2
3
A7DAC5V
R24
10R FU
C23
100U EL
C28
1N0 PP
Z201
PCM1710U
+
R25
C22
120R MF
100U EL
C11
680P PP
Analogue ground
Z202D
R57
17MHZ
8
9
10
330R MF
R62
330R MF
74HCU04
Z202E 74HCU04
P5VCLK
TP14
O
Z202F
R19
13
12
33K MF
74HCU04
74HCU04
+
Z202G
C15
X1
100P CD
16.9344MHZ
R18
33K MF
C16
C13
100P CD
33P CD
3
4
5
SK203
FFC32V
Data connector to DAC PCB
!
L5
33UH AX
R4
3K9 MF
C2
680P PP
Z1A
NJM2114
R2
R3
3
1
3K9 MF
3K9 MF
2
VOUTL
C3
680P PP
R5
10K MF
C1
NOT FITTED
AUDGND
C21
10U NP
R104
3K9 MF
C102
C20
680P PP
680P PP
Z101A
NJM2114
R102
R103
3
1
3K9 MF
3K9 MF
2
VOUTR
C103
DACGND
680P PP
R105
10K MF
C101
NOT FITTED
11
Analogue Ground
P5V
R17
R35
R56
10K MF
PMUTE
4M7 MF
330R MF
P5V
PMUTE
R20
C17
D21
D1
10N CD
1N4148
R34
22R MF
1N4148
10K MF
Q2
BC547B
XRST
C10
BC547B
SW201A
Q6
+ C29
A1014
1N0 CD
100U EL
1
R21
470R MF
2
3
Q5
R28
BC547B
10K MF
DRAWING TITLE
23425
Alpha 7,8 & 9 CD Players
A & R Cambridge Ltd.
Circuit Diagram
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Sheet
3
of
4
Cambridge CB5 9PB
Filename
30-Oct-1997
J:\FILES\PCBS\CIRCUITS\L812C3_8.SCH
4
5
6
7
DIGOUT
R22
DIGOUT
220R MF
C14
33P CD
R9
3K9 MF
Z1B
LEFT1
NJM2114
R6
5
C4
R11
7
10K MF
6
120R MF
10U NP
R8
R10
R7
3K9 MF
22K MF
33K MF
Analogue Ground
R13
10K MF
R109
3K9 MF
RIGHT1
Z101B
R106
NJM2114
5
C104
R111
7
10K MF
6
120R MF
10U NP
R108
R107
3K9 MF
R110
33K MF
22K MF
P18V
R113
10K MF
R29
1K0 MF
C27
10U EL
D20
R15
R30
+
10K MF
10K MF
D3 1N4148
R14
Q3
10K MF
D2
BC557B
1N4148
R26
100K MF
Q4
BC547B
N18V
25 June 1996
C38 was 100U EL. LK14 removed & R64 added
CAH
96_1039
20 Nov 1996
LK66 removed & R65 added
CAH
96_1104
CAH
97_1037
24-4-97
UPGRADE IMPROVEMENTS
CAH
97_1069
2-9-97
HDCD LED changed
CAH
97_1101
30-10-97
HDCD LED removed from Alpha 7 CD
ECO No.
DATE
DESCRIPTION OF CHANGE
DRAWN BY
CHK BY
6
7
8
D
DIGOUT_TX
SK5
T202
PHONO1
1
EMC
DIGOUTP
5
R36
2
620R MF
4
3
DIGOUTN
SCRN
C19
C18 10N CD
10N CD
LOUT
R12
C5
22R MF
C
Q1
100P PP
BC547B
SK4 PHONO2H
L
1
R
C105
100P PP
ROUT
R112
22R MF
Q101
BC547B
L1
7F003
B
GNDOUT
P18V
C6
680P PP
Z1C
Z101C
NJM2114
NJM2114
C7
680P PP
N18V
4
A
5
6
7
L812CT
8
ISSUE
DRAWING NO.
8