Arcam Alpha 9 - Alpha Power & Amp PSU Circuit Diagram

1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
ISSUE
DRAWING NO.
23425
DRAWING TITLE
DRAWN BY CHK BY
DATE
Filename
ECO No.
DESCRIPTION OF CHANGE
J:\Products\A9_amp\pcb_iss7\iss_8\L827C4_8.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
4 5Sheet of
ALPHA POWER & AMP PSU
Circuit Diagram
L827C4 820-Oct-1998
R35
2K7 MF
C12
10U NP
C11
220P PP
R34
47K MF
R32
47K MF
R31
120K MF
74
Z1B
NE5534
+
C8
100U EL
C9
15N PE
C10
15N PE
R33
470K MF
AMPIL
ATE_PAD
AMPIEL
ATE_PAD
SRVOL
ATE_PAD2
3
6
8
5
Z1A
NE5534
DC Servo
Q11
BC547B
Q10
BC557B
R26
2K7 MF
R27
5K6 MF
R22
2K7 MF
Q18
BC547B
Q17
BC547B
Q19
BC547B
Q16
BC547B
Q9
BC546B
Q7
BC546B
Q6
BC556B
Q8
BC556B
R15
1K0 MF
R60
1K0 MF
R79
33K MF
+15V
R23
100R MF
IQTP2L
ATE_PAD
R81
2K2 MF
C20
15N PE
+
C7
10U EL
R78
120K MF
R16
18K MF
R19
2K7 MF
R18
2K7 MF
C6
56P PS
-15V -15V
R30
100K MF
R17
5K6 MF
Q4
2SC2547
Q5
2SA1085
R13
470R FU
R14
470R FU
Q3
2SA1085
R21
330R MF
C5
680P PP
R9
1K0 MF
R11
220R FU
R12
220R FU
R7
470R MF
R6
100R FU
R10
1K0 MF
C23
100N PC
D4
10V 400MW
Q1
IRFP240
Q2
IRFP240
D3
10V 400MW
Q13
BC557B
R5
470R MF
R4
100R FU
R82
100R MF
+
C3
100U EL 100V
R8
100R FU
D2
1N4003F
D1
10V 400MW
+44V
BOOTL
ATE_PAD
C2
47N PE R3
5R6 1W CF
C4
100N PC
R2
1R5 1W CF
L1
2U2H LAC
AMPOL
ATE_PAD
IQL
ATE_PAD
R1
0R22 3W MO
RA1
0R22 3W MO
R29
470R FU
R58
330R MF
R59
27K MF
R56
56R MF
+
C1
100U EL
R28
10R FU
R20
4K7 MF
Q12
2SC2547
Q14
2SC2547
R25
18K MF
-44V
3
2
1
Z3A
LM393A
5
6
7
Z3B
LM393A
84
Z3C
LM393A
D6
22V 400MW
Q15
BC557B
R73
15K MF
R74
15K MF
R75
10K MF
IQTP1L
ATE_PAD
R76
12K MF
R83
4K7 MF
R77
220K MF
+
C72
100U EL
Q20
BC547B
-15V
-15V
-15V
C22
100N PC
+44V
C122
100N PC
+44V
R71
15K MF
R72
15K MF
R24
220K MF
+
C71
10U EL
R124
220R MF
-44v
IQSUP
ATE_PAD
D5
5V6 400MW
D106
22V 400MW
Q115
BC557B
R173
15K MF
R174
15K MF
R175
10K MF
IQTP1R
ATE_PAD
R176
12K MF
R183
4K7 MF
R177
220K MF
+
C172
100U EL
Q120
BC547B
-15V
-15V
-15V
R135
2K7 MF
C112
10U NP
C111
220P PP
R134
47K MF
R132
47K MF
R131
120K MF
+
C108
100U EL
C109
15N PE
C110
15N PE
R133
470K MF
AMPIR
ATE_PAD
AMPIER
ATE_PAD
SRVOR
ATE_PAD
2
3
6
8
5
Z101A
NE5534
DC Servo
Q111
BC547B
Q110
BC557B
R126
2K7 MF
R127
5K6 MF
R122
2K7 MF
Q118
BC547B
Q117
BC547B
Q119
BC547B
Q116
BC547B
Q109
BC546B
Q107
BC546B
Q106
BC556B
Q108
BC556B
R115
1K0 MF
R160
1K0 MF
R179
33K MF
+15V
R123
100R MF
IQTP2R
ATE_PAD
R181
2K2 MF
C120
15N PE
+
C107
10U EL
R178
120K MF
R116
18K MF
R119
2K7 MF
R118
2K7 MF
C106
56P PS
-15V -15V
R130
100K MF
R117
5K6 MF
Q104
2SC2547
Q105
2SA1085
R113
470R FU
R114
470R FU
Q103
2SA1085
R121
330R MF
C105
680P PP
R109
1K0 MF
R111
220R FU
R112
220R FU
R107
470R MF
R106
100R FU
R110
1K0 MF
C123
100N PC
D104
10V 400MW
Q101
IRFP240
Q102
IRFP240
D103
10V 400MW
Q113
BC557B
R105
470R MF
R104
100R FU
R182
100R MF
+
C103
100U EL 100V
R108
100R FU
D102
1N4003F
D101
10V 400MW
+44V
BOOTR
ATE_PAD
C102
47N PE
R103
5R6 1W CF
C104
100N PC
IQR
ATE_PAD
R101
0R22 3W MO
RA101
0R22 3W MO
R129
470R FU
R158
330R MF
R159
27K MF
R156
56R MF
+
C101
100U EL
R128
10R FU
R120
4K7 MF
Q112
2SC2547
Q114
2SC2547
R125
18K MF
-44V
R102
1R5 1W CF
L101
2U2H LAC
AMPOR
ATE_PAD
R184
18K MF
R185
47K MF
+
C173
100U EL
Q121
2SA1085
WAF
74
Z101B
NE5534
Vin
I
ADJ
A
Vout
O
Z201
LM317T
R206
10R FU
R205
10R FU
C205
4N7 PP
C206
4N7 PP
R201
2K4 MF
R203
2K4 MF
R202
220R MF
R204
220R MF
+
C209
10U EL
+
C210
10U EL
+
C207
10U EL
+
C208
10U EL
R207
10R FU
Vin
I
ADJ
A
Vout
O
Z202
LM337T
+44V
-44V
-15V
+15V
P15V
ATE_PAD
N15V
ATE_PAD
REGE
ATE_PAD
+15V
-15V
D201
MUR420
D202
MUR420
D203
MUR420
D204
MUR420
+
C201
10M EL 50V
+
C202
10M EL 50V
-44V
+44V
PSUP
ATE_PAD
NSUP
ATE_PAD
POWRE
ATE_PAD
ACA
A9TXPINS
ACB
A9TXPINS
ACC
A9TXPINS
GNDCON
PAD150/1.8
1
HS1
E801HK
ALL COMPONENT DESIGNATORS ENDING IN 'N' ARE NOT ON ALPHA 9P
ALL COMPONENT DESIGNATORS ENDING IN 'P' ARE ONLY ON ALPHA 9P
HS
HS201A
TO220HS13REG
PWRL
HS202A
TO220HS23REG
PWRR
SPKL
SPKR
AIQL
AIQR
VIPROT
AIQL
AIQR
RESET
ATE_PAD
R84
18K MF
MAY 96 ORIGINAL ISSUE
98_1038
L827C401 1
R180
1K3 MF
R80
1K3 MF
R80 & R180 FROM 1K2 TO 1K3