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
1
2
3
4
5
6
7
8
F F
Q41
BF422
Q39
BC184L
Q37
BC214L
R109
82K
Q33
BF423
R96
Q28
5K6
BF422
VR2
1K
C50
IQ
100NF
Adj
R95
1K5
C59
R97
220K
Q32
BF422
R105
47R
5
C60
100UF/
16V
100UF
C54
100UF/
16V
Q34
BF422
R77
39K
C56
/
25V
100NF
R98
1K
Q31
BF423
4
R104
100R
R110
100R
Z11
6V2
R99
100R
R87
100R
Z10
6V2
R86
100R
R79
82K
1N4148
C55
100UF
1N4148
D32
IN4004
Q30
BF422
Q29
Q26
BF423
BF422
R108
1K
Z8
Z9
R78
1K
Q27
BF423
D31
IN4004
6
D13
D14
N GATES
CON
15 TURNS
SOURCE B
CON
R94
220R
Title
RA4001 CHANNEL B
Number RevisionSize
A3
Date: 2-Aug-1999 Sheet of
File: D:\PROTEL\RA4\CHANNELB.S05Drawn By:
P GATES
CON
C1031/5
7
R74
10R/2.5W
C43
100NF/250V
R111
Q40
BC184L
Q42
BF422
Q38
BC214L
Q36
BF423
R113
680R
2K7
R91
R92
R101
100R
R89
100R
100R
100R
R90
R93
100R
100R
R80 100R
Q35
BF423
R81
R83
680R
2K7
3
R102
390k
1W
1N4148
1N4148
DC Adj
D15
D16
Q43
BF422
Q44
BF423
R114
150R
VR4
470R
R100
39K
R84
330R
2
C63
100NF/
100V
D17
1N4148
C66
100UF/100V
E E
LABEL
AMP2
D D
LABEL
GND2
C C
C65
100UF/100V
B B
A A
1
C61
220PF
100NF/
250V
D18
1N4148
R88
1K
C52
CHOKE2
10R/2.5W
LABEL
R145
HT+
22R
1W
LABEL
R75
O/P2
R147
10R/2.5W
C44
100NF/250V
LABEL
GND
LABEL
R142
HT-
22R
1W
2
75
LMB
8
1
LT +VE CH1
CH1 O/P
GND
CH2 O/P
LT +VE CH2
TO CON: 5
1
2
3
4
5
R12
100K
F F
E E
D D
C C
R16
1N4148
2
R11
10K
D3
1N4148
R26
2k2/4W
100NF
R18
56K
R17
1K
C6
D4
3
R14
510K
C4
100NF
R13
10K
Q3
BF422
Q9
BC214L
R31
47R
7
SIG
R19
56K
Z2
18V/1.3W
P1
5
8 9
IC2
LB1443N
P4
P3
P2
P0
Q10
BC214L
4
LED1
SIGNAL PRESENT
-40dB
GREEN
Z13
11V
Q4
BF423
C5
1uF
R28
47K
1
2
3
4
6
YELLOW
-20dB
LED2
-12dB
LED3
Z5
9V1
-7dB
LED4
Z6
6V8
Z7
4V7
-4dB
LED5
Z8
2V7
LED6
0dB
5
R2
10K
1N4148
R3
100K
D2
R8
1K
1N4148
100NF
C3
R7
6
D1
R1
2k2/4W
R9
56K
7
R10
56K
Z1
18V/1.3W
7
R5
510K
C1
100NF
R4
10K
Q1
BF422
C2
1uF
Q11
BC214L
Q12
BC214L
R32
47R
SIG
P1
5
R29
47K
Z9
9V1
IC3
LB1443N
1
2
P4
3
P3
4
P2
6
P0
8 9
LED8
SIGNAL PRESENT
Z14
11V
Q2
BF423
Z10
6V8
Z11
4V7
Z12
2V7
8
-40dB
GREEN
LED9
YELLOW
-20dB
LED10
-12dB
LED11
-7dB
LED12
LED13
-4dB
0dB
Z4
Q7
D6
R25
100K
B B
A A
1
2
1N4148 C8
R27
100K
BF423
R24
100K
3
470PF
C10
47UF/35V
R23
4K7/1W
Q8
BF423
4
CLIP
LED7
RED
5
Z3
Q5
BF423
D5
R22
100K
1N4148
R30
100K
R21
100K
6
Q6
BF423
C7
470PF
R20
4K7/1W
C9
47UF/35V
Title
Number RevisionSize
A3
Date: 2-Aug-1999 Sheet of
File: D:\PROTEL\RA4\DISPLAY.S06 Drawn By:
CLIP
LED14
RED
RA DISPLAY CARD
RA DISPLAY 3
7
6 6
LMB
8
1
F F
E E
D D
C C
B B
A A
1
XLR1
2
2
XLR2
1
2
XLR3
1
1
XLR4
2
RA INPUT PCB
1
2
JACK1
3
BLUE
RED
SCR
3
3
COAX2SYM COAX2SYM
BLUE
RED
SCR
3
JACK2
2
COAX2SYMCOAX2SYM
3
R1 1K R2 9K1
R3 1K R4 9K1
10PF
C1
C2
220PF
220PF
9
10
IC1C
MC33079
R15 1K
R17 9K1
R16 1K
R18 9K1
C10
C11
220PF
220PF
RGND 10R/2.5W
3
4
C7 10PF
IC1A
MC33079
2
1
3
4 11
C3
R5
10K
8
C8 10PF
R14 10K
13
14
12
IC1D
MC33079
C12
10PF
R19
10K
GREENGREEN
SW1
GROUND LINK
SWITCH
4
R6
100K
C13
100UF/16V
R20
100K
5
C6
R7
1K
100UF/16V
R21 1K
C4
100UF/16V
COAX2SYM
RED
SCR
BLUE
COAX2SYM
VOL1
50K LIN
C14
100UF/16V
COAX2SYM
RED
SCR
BLUE
COAX2SYM
VOL2
50K LIN
5
6
C9 10PF
R9
100K
R13 100K
6
5
R8
47K
COAX2SYM COAX2SYM
RED
BLUE
SCR
6
7
LABEL
LT +
R10
4k7/1WR12 10K
C15
100UF/16V
7
R22
IC1B
100K
MC33079
BRIDGE/STEREO
MODE SWITCH
Title
RA4001 INPUT CIRCUIT
A3
Date: 2-Aug-1999 Sheet of
File: D:\PROTEL\RA4\RA4INPUT.S03 Drawn By:
COAX1SYM COAX1SYM
SW2
REDYELL
Number RevisionSize
C1031/3
7
Z1
18V
C5
100UF/25V
LABEL
GND
Z2
C16
18V
100UF/25V
R23
4k7/1W
LABEL
LT -
LABEL
AMP1
LABEL
GND1
LABEL
AMP2
RED
SCR
LABEL
GND2
LABEL
LT+
LABEL
LEDBR
8
3 7
LMB
8
2
FAN
24V DC
GREEN/YELLOW
55C NORMALLY OPEN
THERMAL SWITCH
THERM3
REDRED
RTHER2
220R/1W
C3
47UF/35V
BLACK
E
IE2
NL
Cassis
Fuse type and rating
Chassis T10A
Softstart F1.6A
FRONT PANEL
MOUNTED MAINS
SWITCH
C2
47UF/35V
SOFTSTAR2FUSE2
S1
RELAY3
R139
18k/2W
D2
IN4004
(4 OFF)
MAINS INPUT VOLTAGE
SELECTOR. CONNECT
REQUIRED TRANSFORMER
VOLTAGE TAP.
240V
20V
0V
RA TRANSFORMER
B1
1N4004
B2
1N4004
DBR2
SB5006
DBR3
SB5006
C79
2200uF
C80
2200uF
E1C75
E3E2
E5E4
E7E6
+ HT
+ MT
+ LT
- LT
- MT
- HT
18K/1W
Q46
BF422
R141
D27
IN4004
R151
10K
R152
10K
RELAY2 RELAY1
C46 C45
100NF/
250V
100NF/
250V
D12
IN4004
Q45
2SA958
R148
39K
R150
120R
Z12
5V6
IN4004
D30
R68
SEE NOTE
DMOD
IN4148
R67
47K
Q24
BF423
Z7
9V1
R66
47K
R69
24K
Q25
BF422
R154
100K
R70
18V
100uF
C40
D11
1N4148
RMOD1
100K
Q20
BF422
R65
47K
Q21
BF423
D42
IN4004
D43
IN4004
Q23
BF422
Q22
BF422
D10 1N4148
LABEL
TO LT+2
R149
100K
D9
IN4004
R64
47K
R63
47K
D8 IN4004
C38
100UF/16V
C39
100UF/16V
C37
680NF
100K
90C NORMALLY
CLOSED THERMAL
SWITCH
R62
THERM2
D7
IN4004
LT +VE CH1
GND
BLUEBLUE
R61
4K7
CON 5
1
2
3
4
5
LT +VE CH2
INTERCONNECT
FLEXISTRIP
TO DISPLAY
O/P1
O/P2
LABEL
LED1
POWER
RED
LED2
PROTECT
YELLOW
LED3
BRIDGE
GREEN
STATUS LED PCB
R140
8K2
6PIN
1
2
3
4
5
6
INTERCONNECT
FLEXISTRIP
6 WAY
6PIN
1
2
3
4
5
6
1
1
1
1
GREENGREEN GREY YELLOW
CH1CH2
Title
RA PROTECTION & PSU
Number RevisionSize
A2
Date: 14-Jul-2000 Sheet of
LEDBR
RAMAIN 5 1
5 7
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