Arcam ALPHA ONE Service Manual - Page 3
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ALPHA ONE/7R/8R/8P AMPLIFIER SERVICE MANUAL
H
/
Test Point
20
21 (protection off)
21 (protection on)
22
23
24
25
Between 26 & 27
28 (muted)
28 (protection off)
29
30
31
(volume going up)
31
(volume going down)
32
(volume going up)
32
(volume going down)
PARTS LISTS
The parts for all the units are as the Alpha 7 except where shown.
REF
Description
C1
ELST 100U 100V
C2
PEST 47N 63V 10%
C3
PCRB 100N 100V 5% RA
5mm
C4
PEST 47N 63V 10%
C5
PSTY 33P 160V ENCAP
1PF%
C7
PPRO 4N7 63V 5% RA
C8
PPRO 100P 63V 5% RA
C9
ELST 100U 25V
C10
ELST 22U 20V OSCON
C10
ELST 22U 63V ELECT
C11
ELST 100U 100V
C12
ELST 100U 100V
C13
PEST 15N 63V 10%
C14
PEST 15N 63V 10%
P
P
S
DC Voltage Alpha One
0.0V
1.6V
5.0V
0.58V
3.4V
-3V
-26V
3.4mV
35V
1V
N/A
N/A
N/A
N/A
N/A
N/A
Part No
2N710B
2K347
2H410
2K347
2F033
2D247N
2D110N
2N710
2P622
2N622
2N710B
2N710B
2K315
2K315
E MAN
DC Voltage Alpha 7R
0.0V
1.6V
5.0V
0.17V
3.1V
-2.7V
-29V
3.4mV
35V
1V
5V
10.5
0V
5V
0V
5V
Product
C15
SUPPR CAP 4N7 250V
7R
C16
ELST 100U 25V
7R
C17
CERD 470P 63V 20% RA
7R
C18
CERD 1N0 63V 20% RA
C19
ELST 100U 25V
7R
C20
CERD 470P 63V 20% RA
7R
C21
CERD 10N 63V 20% RA
7R
C22
CERD 10N 63V 20% RA
7R
C23
SUPPR CAP 4N7 250V
A1
C24
PPRO 4N7 63V 5% RA
7R
C25
PCRB 100N 100V 5% RA
5mm
A1
C26
PCRB 100N 100V 5% RA
7R
5mm
7R
C27
ELST 220U 16V
7R
C28
PCRB 100N 100V 5% RA
5mm
7R
3
DC Voltage Alpha 8R/8P
0.0V
1.6V
5.0V
0.17V
3.1V
-2.7V
-29V
2.5mV
35V
1V
5V
10.5V
0V
5V
0V
5V
2K247
2N710
2A147
2A210
2N710
2A147
2A310
2A310
2K247
2D247N
2H410
2H410
2N722
2H410
7R
7R
7R
7R
7R
7R
7R
7R
7R
7R
7R
7R
7R
7R