Arcam Alpha 7 Panduan Servis - Halaman 17

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Halaman Cetak
Arcam Alpha 7 Panduan Servis
1
2
INOUT
INOUT
LDIN
LDIN
D
LDOUT
LDOUT
R63
DEEM
33K MF
DEEM
DEEM
SMUTE
SMUTE
AMUTE
AMUTE
SMUTE
AMUTE
4MHZ
4MHZ
4MHZ
RMIN
RMIN
RMIN
PGML
PGML
CLK
CLK
DATA
DATA
PGML
CLK DATA
C
SCOR
SCOR
SQCK
SQCK
XRST
XRST
LDON
LDON
XLT
XLT
SENSE
SENSE
SUBQ
SUBQ
B
NEXT
PREV
FF
R301
R302
33K MF
12K MF
SW301
SW302
SW303
NEXT
PREV
FF
A
1
2
3
FILA
K1
K0
N30V
C292
100U EL
P5V
!
R291 3R3 FU
+
C291
C293
47N CD
47N CD
R308
8K2 MF
FR
PAUSE
STOP
PLAY
OPEN
R303
R304
R305
R306
R307
5K6 MF
3K3 MF
2K2 MF
1K5 MF
1K2 MF
SW304
SW305
SW306
SW307
SW308
FR
PAUSE
STOP
PLAY
OPEN
R313
CHECK
PROG
DISP
REPEAT
8K2 MF
R309
R310
R311
R312
3K3 MF
2K2 MF
1K5 MF
1K2 MF
SW309
SW310
SW311
SW312
CHECK
PROGRAM
DISPLAY
REPEAT
3
4
5
P5V
SK291
Flexfoil connector to Display PCB
FFC32V
30
65
30
40
66
40
50
67
50
60
68
60
70
69
70
80
70
80
71
-30v
72
+5V
73
+5V
74
+5V
75
+5V
76
LOADIN
IN/OUTSW
77
LOADOUT
78
SCOR
79
SEL2
80
SEL1
K0M
R298
10K MF
R295
10K MF
R296
R297
10K MF
10K MF
> ||
DISC
DISP301
88
SHUFFLE
B1008
K0
VF2
SK301
FFC32H
K1
DRAWING TITLE
23425
Alpha 7,8 & 9 CD Players
Display PCB
A & R Cambridge Ltd.
Circuit Diagram
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Sheet
4
of
4
Cambridge CB5 9PB
Filename
30-Oct-1997
J:\FILES\PCBS\CIRCUITS\L812C4_8.SCH
4
5
6
7
FILB
Z212
CXP826P16Q
40
SMUTE
SMUTE
39
DEEM
NC
38
DEEM
37
R4
RO4
36
R3
RO3
X201
35
R2
RO2
CST4.00
34
R1
RO1
33
VSS
32
XTAL
31
4MHZ
EXTAL
30
XRST
RST
29
INOUT
28
AF ADJ
27
+5V
26
R1
C294
+5V
25
D291
47N CD
KEY3
C0'
1N4148
R292
R61
8K2 MF
D294
R60
8K2 MF
C4'
R2
8K2 MF
1N4148
R3
K1
K1M
D295
C0
K0
R11
1N4148
R12
R13
R4
R14
88
-88.88
VF1
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
DRAWN BY
CHK BY
6
7
8
D
D292
D293
C1'
C3'
C
1N4148
1N4148
D296
C2
1N4148
D297
C7
1N4148
B
DIS5V
R314
220R MF
LED301
LED GREEN
DISGND
4
A
5
6
7
L812CT
8
DESCRIPTION OF CHANGE
ISSUE
DRAWING NO.
8