File:
D:\PROTEL\SR\SRDRVRA.SCH
Drawn By:
XLR1
L BASHAM
XLR2
REAR PANEL MOUNTED
1
2
2
1
+18V
LABEL
-18V
D19
18V
D18
18V
3
3
SMOOTHING AND
+-18V SUPPLY
JACK1
C27
100u
35V
C28
100u
35V
R49
6K8/1W
R62
6K8/1W
2
COAX2SYM
C3
47u
100V
C2
47u
100V
BLUE
RED
SCR
R56
1K
R59
1K
FRONT PANEL MOUNT
LED1
PEAK
LABELLABEL
+ RAIL
C8
100n
GND
C7
100n
LABEL
- RAIL
C31
220p
ORANGE/BLACK
RED/BROWN
R57
9K1
R58
9K1
C30
220p
R48
4K7/1W
RED
D16
1N4148
R51
330p
LABEL
N DRIVE
LABEL
GND
R52
2K7
+ RAIL
D17
1N4148
R53
82K
ORANGE
RED
R54
9k76
TL071
TR19
BF423
TR20
BF422
VR2
1K
CMRR
TRIM
7 4
1N4148
R46
1K
C25
10u/63V
D15
R61
22R
6
R55
1K
3
COAX2SYM
20K LOG
C15
100n
R26
*
C34
10p
+18
IC1
3
2
-18
R60
10K
R47
4K7
LABEL
FEEDBACK OUTPUT
VOL1
R37
2K7
R50
27K/1W
C29
10u
63V
TR18
1085
R44
100R
R45
2K7
R43
330
TR21
BF423
R42
100R
R38
2K7
TR17
1085
R41
C24
100u
25V
*
R40
22R
C21
100n
R36
47K
R39
47k
BRIDGE
FEED IN
R34
27K/1W
TR12
BF422
R31
10K
C22
33p
R32
150
TR16
BF423
TR14
BF422
R33
150R
C19
100n
TR11
BF422
C17
33p
TR13
BF422
R29
150
TR15
BF423
R28
47R
C16
10n
C18
100n
R18
4K7/1W
TR10
BF423
R24
27K/1W
R16
4K7/1W
TR8
BF422
R22
2K7
R21
2k
VR1
1K
IQ
TRIM
R25*C9
TR9
BF423
D14
9V1
D13
9V1
TR7
BF422
R23
150R
RG6RG5RG4RG3RG2RG1
C13
100n
47u
100V
TR6
BF422
C5
47u C4
100V
MOSN6MOSN5MOSN4MOSN3MOSN2MOSN1
MOSP6MOSP5MOSP4MOSP3MOSP2MOSP1
D12
1N4148
D11
6v8
D10
6v8
D9
1N4148
100n
1N4004
1N4004
D F1
D F2
Q2
2SA2238
R17
330R
R15
330R
Q3
2SA968
10R
RCHOKE
CHOKE1
R GATES
1K
GREEN
ORANGE
BLACK
PINK
C1
33n
R11
10R/2.5W
LABEL
+ RAIL
LABEL
N DRIVE
LABEL
FEEDBACK
LABEL
P DRIVE
LABEL
- RAIL
LABEL
GROUND
LABEL
YELLOW
MODEL R41 R26 IQ
SR404 1K2 220K 150mA
SR606 1K2 280K 150mA
SR707 1K 280K 150mA
LABEL
- RAIL
RG1 TO RG12 = 560R
LABEL
P DRIVE
BLACK
PINK
MOUNTED ON HEATSINK
DIAGRAM SHOWS SR404 OUTPUT STAGE. SR606 AND SR707 OUTPUT STAGES
DIFFER IN THE NUMBER OF OUTPUT DEVICES PER RAIL. THE SR606 AND
SR707 USE 8 DEVICES PER RAIL. ADDITIONAL DEVICES ARE CONFIGURED
SIMILARLY WITH 560R GATE RESISTORS AS SHOWN.
RG12RG11RG10RG9RG8RG7
Title
Number RevisionSize
A2
Date: 1-Jul-1999 Sheet of
SR DRIVER A
SRDRVR1 2
3 3
File:
D:\PROTEL\SR\SRDRVRB.SCH
Drawn By:
L BASHAM
REAR PANEL MOUNTED
JACK1
LED5
+18V
-18V
1
3
2
COAX2SYM
C8
100n
C7
100n
BLUE
RED
SCR
LABEL
+ RAIL
- RAIL
2
2
3
1
BRIDGE SWITCH
REAR PANEL MOUNTED
R LED
RED ORANGE/RED
4
COAX2SYM
RED
GND
D19
18V
D18
18V
12K/1W LABEL
SMOOTHING AND
+-18V SUPPLY
C27
100u
35V
C28
100u
35V
R49
6K8/1W
R62
6K8/1W
C3
47u
100V
C2
47u
100V
RED/BLUE
+ RAIL
LABEL
CHAN A
OUTPUT
XLR1
XLR2
FRONT PANEL
LABEL LABEL
LABEL
1K
R59
1K
FRONT PANEL MOUNT
LED1
PEAK
GND
C31
220p
RED/BLACK
R57
9K1
R58
9K1
C30
220p
R48
4K7/1W
R54
10K
TL071R56
TR19
BF423
TR20
BF422
IC1
R47
4K7
C34
10p
2
R60
10K
LABEL
VR2
1K
CMRR
TRIM
+18
7 4
-18
1N4148
R46
1K
C25
10u/63V
D15
PINK
C1
33n
R11
10R/2.5W
YELLOW
LABEL
+ RAIL
LABEL
N DRIVE
LABEL
FEEDBACK
LABEL
P DRIVE
LABEL
- RAIL
LABEL
GROUND
LABEL
OUTPUTFEEDBACK
RED
D16
1N4148
D17
1N4148
R61
22R
6
R55
1K
3
COAX2SYM
20K LOG
C15
100n
R26
*
VOL1
R37
2K7
R50
24K/.5W
GND
C29
63V
R51
330p
LABEL
N DRIVE
LABEL
R52
2K7
+ RAIL
R53
82K
ORANGE
RED
10u
R43
330
R29
R32
TR12
BF422
R31
10K
C22
33p
150
TR16
BF423
TR14
BF422
R33
150R
C19
100n
TR11
BF422
C17
33p
TR13
BF422
TR21
BF423
R44
100R
TR18
1085
R45
2K7
RG1 RG2 RG3 RG4 RG5 RG6
R42
100R
R36
47K
TR17
1085
R39
47K
R41
*
C24
100u
25V
R40
22R
C21
100n
R38
2K7
MOSN2 MOSN3 MOSN4 MOSN5 MOSN6 MOSN7
MOSP2 MOSP3 MOSP4 MOSP5 MOSP6 MOSP7
LABEL
BRIDGE
RED
R34
22K
150
TR15
BF423
R28
47R
C16
10n
C18
100n
R18
4K7/1W
TR10
BF423
R14
24K
.5W
R16
4K7/1W
TR8
BF422
R22
2K7
R21
1K5
VR1
1K
R25
*
TR9
BF423
IQ
TRIM
D13
9V1
TR7
BF422
D14
9V1
150R
C13
100n
C9
47u
100V
Q2
2SA22383
D12
1N4148
TR6
BF422
C5
47u
100V
R23
D11
9V1
D10
9V1
D9
1N4148
C4
100n
D F1
1N4004
D F2
1N4004
R17
330R
R15
330R
Q3
2SA968
R GATES
1K
CHOKE1
10R
RCHOKE
ORANGE
BLACK
GREEN
MODEL R41 R26 IQ
SR404 1K2 220K 150mA
SR606 1K2 280K 150mA
SR707 1K 280K 150mA
LABEL
- RAIL
LABEL
P DRIVE
RG7 RG8 RG9 RG10 RG11 RG12
BLACK
PINK
MOUNTED ON HEATSINK
DIAGRAM SHOWS SR404 OUTPUT STAGE. SR606 AND SR707 OUTPUT STAGES
DIFFER IN THE NUMBER OF OUTPUT DEVICES PER RAIL. THE SR606 AND
SR707 USE 8 DEVICES PER RAIL. ADDITIONAL DEVICES ARE CONFIGURED
SIMILARLY WITH 560R GATE RESISTORS AS SHOWN.
Title
Number RevisionSize
A2
Date: 1-Jul-1999 Sheet of
SR DRIVER B
2SRDRVR2
3 3
File:
D:\PROTEL\SR\SRPWR.SCH
Drawn By:
BROWN
L BASHAM
RED
BLUE
TRANSFORMER SECONDARY TAPPINGS
AND VOLTAGES AC (RMS ) OFF LOAD
SR404 YELLOW 53V
SR606 VIOLET 64V
SR707 ORANGE 72V
TX1
0V
220V
240V
ORANGE
VIOLET
YELLOW
GROUND
YELLOW
VIOLET
ORANGE
LABEL
TO TX SECONDARIES
LABEL
FOR CAPACITOR VALUES
SEE NOTE 3
DBR1
SB354
DBR2
SB354
CAP1
CAP2
CAP3
CAP4
RED
BLACK
RED
BLACK
GREEN
LABEL
LABEL
LABEL
LABEL
- RAIL
LABEL
GROUND
+ RAIL
- RAIL
+ RAIL
DC RAIL VOLTAGES
SR404 +-75V
SR606 +-90V
SR707 +-100V
NOTE 1 NOTE 2 NOTE 3
CAPACITOR RESISTOR CAPACITOR
VALUE VALUE VALUE
SR404 1.47uF LINK 12000uF
SR606 1uF 220R/1W 19000uF
SR707 1uF 470R/1W 19000uF
GND
FAN1
115V
FAN2
115V
TWO SPEED FAN
COOLING
RGND 10R/2.5W
50C N/O
THERM 1 THERM 2
NOTE 1
GREEN/YELLOWGREEN
SW2
GROUND LINK
SWITCH
POWER SUPPLY
90C N/C
THERM 4THERM 3
CHAN B
LABEL
FEEDBACK
LABEL
FEEDBACK
CHAN A
R2
10K
GREY
D3
1N4004
C10
680u
R5
47K
R6
47K
R19
56K
D8
1N4004
C11
100u
C12
100u
D7
1N4148
D5
1N4148
TR5
BF422
TR4
BF422
DC, HF AND OVERTEMP
PROTECTION
TR3
BF423
R14
100K
D6
1N4004
TR2
BF422
R13
180K
R4
47K
C6
47u
R10
47K
TR1
BF422
R7
27k
D4
9V1
Q1
2SA968
R1
NOTE 2
D1
1N4004
ORANGE
PINK
R3
22K
LABEL
+ RAIL
LABEL
LABEL
GREY/BLUE
+ CONT
GND
BLUE
FRONT PANEL MOUNTED
PROTECT
LED 3
YELLOW
Title
A2
Date: 1-Jul-1999 Sheet of
SR POWER/PROTECT/FAN
Number RevisionSize
SRPWR1
2
2 3
Date:
1-Jul-1999
Sheet of
1
1
LIVE
CHASSIS FUSE RATING
SR404 8AT 1.25"
SR606 10AT 1.25"
SR707 15AT 1.25"
CHASSIS
BROWN
FUSE
LABEL
NEUTRAL
EARTH
GREEN/YELLOW
SW1
POWER
MOUNTED ON
FRONT PANEL
GND
PINK
BLUE
Brown
Brown
RMOD2
8k2/1W
D1
1N4148
RELAY1
FUSE1
R1
47R/23W
1.6A (F)
SEE NOTE
FOR VALUE
OF C1
C1
C3
47uF/100v
D4-D7
1N4004 x4
RMOD1
1K
R8
10k/2.5W
IC1
H11G1
R5
10K
D2
1N4148
R3
1K
R4
1K
Q1
BF422
Q2
BF423
D3
1N4148
R2
680R
RELAY2
RELAY3
TO TRANSFORMER
PRIMARIES
+ CONT
ORANGE
THE VALUE OF C1 DEPENDS UPON THE AC MAINS VOLTAGE
FOR 220V/240V OPERATION C1= 680nF / 250V X RATED
R6
680R
OUTPUT CHAN 2
CHAN 1
GREY
RELAY4 RELAY5
C4
100nF
C5
100nF
YELLOWGREY
YELLOW
OUTPUT
The value of FUSE1 is critical to the continued safety of the unit and MUST only be replaced
with a fuse of the same type and rating.
Failure to do may result in injury or further damage and WILL invalidate the warranty
Title
C-AUDIO
A3
SR SOFT START
Number RevisionSize
CA-PCBA002
2
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