Arcam Alpha 10 Manuale di servizio - Pagina 4
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ALPHA 10/10P SERVICE MANUAL
H
•
On power up, the protection should be engaged. This is checked after 3 seconds on pin 9 of Z9. If it isn't
happening, the unit shuts down with flashing red.
•
If the protection does not clear after about 16 seconds on power-up the unit shuts down to flashing red. This
is usually caused by a voltage offset.
•
Any main amp power loss detected on pin 26 after power-up causes a shut down to flashing red.
•
Any RF detected on pin 3 results on immediate shut down to flashing red.
•
Any protection fault detected after power up on pin 9 results in a flashing amber LED for about 16 seconds
max. If it has not cleared by then the unit is shut down to flashing red. Protection faults are caused by voltage
offset or over-current. Over-current should latch resulting in a shut down after 16 seconds. Voltage offsets
should clear themselves if brief.
•
A temperature fault on pin 25 results in the power LED flashing slow amber and can last indefinitely until it
clears. When it clears the flashing will speed up until the protection times back in.
Ref No.
Description
C1
ELST 100U 100V
C2
ELST 100U 100V
C3
MLC 100N 50V X7R 10% SM
C4
ELST 100U 100V
C5
ELST 100U 100V
C6
ELST 22U 63V
C7
ELST 10U 50V
C8
ELST 22U 63V
C9
ELST 10U 50V
C10
ELST 10U 50V
C11
ELST 1U0 50V
C12
PPRO 4N7 63V 5% RA
C13
SUPPR CAP 4N7 250V
C14
PPRO 150P 5% 63V RA
C15
ELST 10U 50V
C16
ELST 10U 50V
C17
ELST 10U 50V
C18
ELST TNC 10m 63V RA 40mm
C19
ELST TNC 10m 63V RA 40mm
C20
PPRO 4N7 63V 5% RA
C21
PPRO 4N7 63V 5% RA
C22
ELST 100U 25V
C23
ELST 100U 25V
C24
ELST 100U 25V
C25
ELST 100U 25V
C26
ELST 100U 25V
C27
ELST 100U 25V
C28
MLC 470P 100V NPO 5% SM
C29
MLC 470P 100V NPO 5% SM
C30
MLC 470P 100V NPO 5% SM
AL
ALPHA 10P POWER AMP MAIN BOARD PARTS LIST
Part No
2N710B
2N710B
2C410
2N710B
2N710B
2N622
2N610
2N622
2N610
2N610
2N510
2D247N
2K247
2D115
2N610
2N610
2N610
2N910A
2N910A
2D247N
2D247N
2N710
2N710
2N710
2N710
2N710
2N710
2C147
2C147
2C147
C31
MLC 100N 50V X7R 10% SM
C32
ELST 22U 63V
C33
ELST 22U 63V
C34
MLC 100N 50V X7R 10% SM
C35
PPRO 150P 5% 63V RA
C36
PPRO 4N7 63V 5% RA
C37
PPRO 1N0 5% 63V RA
C38
PPRO 680P 63V 5% RA
C39
PPRO 680P 63V 5% RA
C40
MLC 10N 50V X7R 10% SM
C41
MLC 10N 50V X7R 10% SM
C42
MLC 10N 50V X7R 10% SM
C43
MLC 10N 50V X7R 10% SM
C44
SUPPR CAP 4N7 250V
C45
ELST 10U 50V
C46
SUPPR CAP 4N7 250V
C47
SUPPR CAP 4N7 250V
C48
ELST 3M3 25V
C49
PPRO 1N0 5% 63V RA
C50
ELST 1U0 50V
C51
ELST 220U 16V
C52
ELST 220U 16V
C53
ELST 220U 16V
C54
ELST 220U 16V
C55
PCRB 100N 100V 10% RA 5mm
C56
PCRB 100N 100V 10% RA 5mm
C57
PCRB 100N 100V 10% RA 5mm
C58
PCRB 100N 100V 10% RA 5mm
C59
PCRB 100N 100V 10% RA 5mm
C60
PCRB 100N 100V 10% RA 5mm
C61
PPRO 100P 63V 5% RA
4
2C410
2N622
2N622
2C410
2D115
2D247N
2D210
2D168
2D168
2C310
2C310
2C310
2C310
2K247
2N610
2K247
2K247
2N833
2D210
2N510
2N722
2N722
2N722
2N722
2H410
2H410
2H410
2H410
2H410
2H410
2D110N