Arcam ALPHA ONE Service-Handbuch - Seite 13
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1
2
Z300A
D
4560D
R516
C501
3
VOLR
R506
1
1K8 MF
2
220R MF
10U EL
R504
6K8 MF
C507
R503
100P CD
2K2 MF
LK19
1
2
6
VOLR
10MM LINK
5
SW304B
TONOR
LK20
4
2PCO
1
2
3
VOLL
10MM LINK
2
SW304A
1
TONOL
2PCO
C
R801
R63
R64
4K7 MF
56K MF
(560R MF in 8P)
56K MF
C801
100P PP
R805
4K7 MF
(560R MF in 8P)
B
C802
100P PP
P15V
Z300C
Z302C
Z304C
C212
4560D
4560D
4560D
10N CD
C213
10N CD
N15V
A
1
2
3
BASS
R507
R508
RV302A
4K7 MF
4K7 MF
10K LIN POT
C502
C503
220N PE
220N PE
R511
Z304B
Tone controls :
4K7 MF
C505
5
8dB cut and boost
7
6
10U EL
4560D
C504
4N7 PP
C508
R509
R510
10P CD
3K3 MF
RV303A
3K3 MF
10K LIN POT
C406
TREBLE
100P CD
Pot arrow shows max boost
Z302A
3
1
2
R802
4560D
TP19
100K MF
(3k9 MF in 8P)
C803
R804
5K6 MF
R803
10U EL
2K4 MF
C804
10U EL
Z302B
TP20
5
7
6
R806
100K MF
4560D
P15V
(3k9 MF in 8P)
R808
R815
1K2 MF
5K6 MF
PREP
R807
2K4 MF
Z801B
D801
P74HC4052
5V6 400MW
C805
10N CD
C214
C216
10N CD
10N CD
D802
C806
4V7 400MW
PREG
10N CD
C217
C215
10N CD
10N CD
R816
1K2 MF
N15V
3
4
5
Z300B
4560D
R416
5
C401
VOLL
R406
7
1K8 MF
6
220R MF
10U EL
R404
6K8 MF
C407
R403
R512
100P CD
2K2 MF
10K MF
RV304A
10K LIN POT
BALANCE
R61
R515
TONOR
18K MF
3K3 MF
Z801A
R811
12
13
1Y0
1Z
14
220R MF
1Y1
15
1Y2
11
1Y3
R812
1
3
2Y0
2Z
5
220R MF
2Y1
2
2Y2
4
2Y3
R809
R810
6
INH
100K MF
100K MF
9
S1
10
7
S0
VEE
P74HC4052
PREMUTE
R817
18K MF
D803
1N4148
PREMUTE
PREN
DRAWING TITLE
ALPHA 1, 7, 8 & 8P AMP
Circuit Diagram
23425
Notes:
A & R Cambridge Ltd.
TONE CONTROL
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Filename
Cambridge CB5 9PB
J:\FILES\Products\A1_7_8_8P AMPS\Issue_2\L846C4_3.SCH
4
5
6
7
BASS
R408
R407
RV302B
4K7 MF
4K7 MF
10K LIN POT
C402
C403
220N PE
220N PE
R411
Z304A
Tone controls :
4K7 MF
3
8dB cut and boost
1
2
4560D
C404
4N7 PP
C408
R409
R410
10P CD
3K3 MF
RV303B
3K3 MF
10K LIN POT
C506
TREBLE
100P CD
Pot arrow shows max boost
PWRIR
PWRIL
*** NOTE! ***
PCB has two links,
R819
R818
LK801, LK802 in place of
8K2 MF
8K2 MF
R818 and R819.
8P ONLY
8P ONLY
THE RESISTORS SHOULD BE
FITTED ON THE 8P - NOT THE LINKS.
PREOUTR
PREOUTL
R813
R814
22K MF
22K MF
FIT LINKS AS BELOW
LINK
1
7
1
2
3
4
5
6
7
601
602
701
702
803
804
98_1029
LJW
29-05-98
LISTENING APPROVAL
98_1025
12-05-98
Initial release
LJW
ECO No.
INITIALS
DATE
DESCRIPTION OF CHANGE
Drawn by:
Date Printed
Sheet
LJW
22-Sep-1998
6
7
8
D
R412
C405
10K MF
RV304B
10U EL
10K LIN POT
BALANCE
TONOL
R62
R415
18K MF
3K3 MF
C
B
8
8P
A
2
1
ISSUE
4
of
7
L846C4_2
DRAWING NO.
8