C Audio ra4001 schematic
1
F F
Q47
R116
BF423
330R
Q48
BF423
E E
R115
100K
Z13
20V
Q52TR31A
BF422 Q51
BF422
R119
R30A
200K
D D
1W
C C
B B
150R
Q53
R120
BF423
150R
Q54
BF423
Z15
20V
R122
100K
Q55
BF422
R123
Q56
330R
BF422
2
+HT
Q49
BF422
R117
10K
Z14
12V
GND
C131
330P
C132
330P
Z16
12V
R124
10K
Q58
BF423
R38A
330R
Q50
BF423
C
N GATE
C
P GATE
Q57
BF422
R126
220R
R125
D20
47R
IN4148
-HT
3
C83
10P
R171
560R
TR1
K1058
CM1
RM1
1n
470R
R39A
1k
DM1A
1N4148
CM2
RM2
1n
470R
R40A
1k
DM2A
1N4148
TR7
SD
J162
R185
560R
G
C97
10P
4
C84
10P
R172
560R
TR2
K1058
R186
560R
C98
10P
C85
10P
R173
560R
TR3
K1058
C89
10P
R177
560R
TR13
K1058
TR17
J162
SD
R181
560R
G
C93
10P
TR8
J162
G
TR9
J162
SD
SD
R187
560R
G
C99
10P
5
C86
10P
R174
560R
TR4
K1058
C90
10P
R178
560R
TR14
K1058
TR18
J162
R182
560R
C94
10P
R188
560R
C100
10P
C87
10P
R175
560R
TR5
K1058
C91
10P
R179
560R
TR15
K1058
TR19
J162
SD
R183
560R
G
TR10
J162
G
G
C95
10P
TR11
J162
SD
R189
560R
G
C101
10P
6
C88
10P
R176
560R
TR6
K1058
C92
10P
R180
560R
TR16
K1058
SD
R184
560R
C96
10P
SD
R190
560R
C102
10P
D44
IN4004
R128
10R
2.5W
C124
100n
TR20
R129
J162
3R3
SD
2.5W
G
C125
100n
TR12
J162
SD
D45
G
IN4004
7
D52
BYT30P400
R127
C123
2.5W
10R
100n
D48
IN4004
D49
IN4004
R130
C126
10R
100n
2.5W
D53
BYT30P400
C
C
C
C
C
C
MT RAIL +
LT RAIL +
0 VOLT
SOURCE A
TO SHEET 1
LT RAIL -
CON
HT RAIL -
8
A A
1
2
3
4
5
6
Title
RA4001 OUTPUT STAGE
Number RevisionSize
C1031/5 2
C
Date: 2-Aug-1999 Sheet of
File: D:\PROTEL\RA4\RA4001OP.S01Drawn By:
7
5 7
8
A
L BASHAM
1
F F
Q59
R156
BF423
330R
Q60
BF423
E E
R155
100K
Z17
20V
Q64
Q63
BF422
BF422
R159
R161
200K
D D
1W
C C
B B
150R
Q65
R160
BF423
150R
Q66
BF423
Z19
20V
R162
100K
Q67
BF422
R163
Q68
330R
BF422
2
+HT
Q61
BF422
R157
10K
Z18
12V
GND
C133
330P
C134
330P
Z20
12V
R164
10K
Q70
BF423
R158
330R
Q62
BF423
C
N GATE
C
P GATE
Q69
BF422
R165
220R
D21
R166
IN4148
47R
-HT
3
C103
10P
R191
560R
TR21
K1058
RM1
CM1
470R
1n
R107
1k
DM1
1N4148
RM2
CM2
470R
1n
R106
1k
DM2A
1N4148
TR27
SD
J162
R205
560R
G
C117
10P
4
C104
10P
R192
560R
TR22
K1058
R206
560R
C118
10P
C105
10P
R193
560R
TR23
K1058
C109
10P
R197
560R
TR33
K1058
TR37
J162
SD
R201
560R
G
C113
10P
TR29
TR28
J162
G
J162
SD
SD
R207
560R
G
C119
10P
5
C106
10P
R194
560R
TR24
K1058
C110
10P
R198
560R
TR34
K1058
TR38
J162
R202
560R
C114
10P
R208
560R
C120
10P
C107
10P
R195
560R
TR25
K1058
C111
10P
R199
560R
TR35
K1058
TR39
J162
SD
R203
560R
G
TR30
J162
G
G
C115
10P
TR31
J162
SD
R209
560R
G
C121
10P
6
C108
10P
D46
R196
560R
TR26
K1058
C112
10P
R200
560R
TR36
K1058
SD
R204
560R
C116
10P
SD
R210
560R
C122
10P
IN4004
R168
10R
2.5W
C128
100n
R169
TR40
3R3
J162
SD
2.5W
G
C129
100n
TR32
J162
SD
D47
IN4004
G
7
D54
BYT30P400
C127
R167
2.5W
100n
10R
D50
IN4004
D51
IN4004
BYT30P400
C130
R170
100n
10R
2.5W
D55
C
C
C
C
C
C
MT RAIL +
LT RAIL +
0 VOLT
SOURCE A
TO SHEET 1
LT RAIL -
CON
HT RAIL -
8
A A
1
2
3
4
5
6
Title
RA4001 OUTPUT STAGE
Number RevisionSize
C
Date: 2-Aug-1999 Sheet of
File: D:\PROTEL\RA4\RA4001OP.S02Drawn By:
7
6 7
8
L BASHAM
B
2C1031/6
1
2
3
4
5
6
7
8
F F
R24
R25
R27
2K7
680R
R46
R47
100R
100R
R45
R48
100R
100R
R55
2K7
680R
DC Adj
R32
390k
1W
1N4148
1N4148
150R
VR3
470R
Q1
BF423
R34
39K
Q2
BF422
D3
D4
2
Q3
BF422 Q4
Q5
BC184L Q6
R33
100R
R44
100R
Q7
BC214L
Q9
BF423
R52
330R R53
C20
D1
100NF/
1N4148
100V
D2
C18
C33
100NF/
250V
1
C22
220PF
1N4148
R11
1K
E E
C17
100UF
LABEL
AMP1
D D
LABEL
GND1
C C
B B
A A
BF422
BC184L
Q8
BC214L
R56 100R
Q10
BF423
3
R29
150K
C24
100UF/
16V
100UF
C29
100UF/
16V
C25
25V
Q11
BF422
R59
39K
100NF
/
R361KR38
Q14
BF423
4
C23
R31
100R
R28
100R
Z3
6V2
R35
100R
R49
100R
Z4
6V2
R51
100R
R57
150K
Q12
BF423
R39
Q15
5K6
BF422
VR1
1K
IQ
Adj
R40
1K5
220K
Q13
BF422
C30
100NF
C28
100UF
R71
47R
5
D5
1N4148
Z5
12V
Z6
12V
D6
1N4148
Q19
BF423
Q16
BF422
IN4004
IN4004
D28
BF422
Q17
R30
1K
R58
1K
Q18
BF423
D29
6
N GATES
15 TURNS
R41
220R
SOURCE A
P GATES
Title
RA4001 CHANNEL A
Number RevisionSize
A3
Date: 2-Aug-1999 Sheet of
File: D:\PROTEL\RA4\CHANNELA.S04Drawn By:
C1031/4
7
R72
10R/2.5W
C42
100NF/250V
CHOKE1
10R/2.5W
LABEL
R144
HT+
22R
1W
LABEL
R73
O/P1
R146
10R/2.5W
C41
100NF/250V
LABEL
GND
LABEL
R143
HT-
22R
1W
2
4 7
LMB
8
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