Schematics for the Ampeg SVT-VR amp

A
B
C
D
E
660V
F
J12
372V
J10
TO POWER AMP
1
1
R15
R11
5
3W
5% FLAME
PROOF
R7
5
3W
5% FLAME
PROOF
D4
220
1/2W
J1
R18
1KV PIV
1N4007
1KV PIV
1N4007
R12
5
3W
5% FLAME
PROOF
D11
220
1/2W
J3
5% FLAMEPROOF
5% FLAMEPROOF
5 8
2
FIL2
1N4007
1KV PIV
5% FLAMEPROOF
TUBE BOARD
Screen-grid diodes
later omitted.
5 8
5 8
7
R6
R16
47.5K
1/2W
47.5K
1/2W
1%
1%
30V
1N4007
1KV PIV
4
4
FIL1
D10
220
1/2W
3
3
4
7
D5
R10
J2
3
2
FIL1
R14
FIL2
7
FIL1
2
FIL2
Ampeg
SVT-VR
D8
1N4007
1KV PIV
47.5K
1/2W
1%
APPROX -45V
D9
1N4007
1KV PIV
2
2
TO POWER AMP
J9
1
2
3
4
FIL1
5
FIL2
D12
6
1N4007
7
1KV PIV
{Value}
1KV PIV
1N4007
R8
2
J4
7
FIL2
FIL1
220
1/2W
5% FLAMEPROOF
R2
D6
5 8
FIL2
7
FIL1
FIL2
3
R17
47.5K
1/2W
1%
5
3W
5% FLAME
PROOF
FIL2
7
FIL1
220
1N4007
1/2W
1KV PIV
5% FLAMEPROOF
D1
1N4007
4
J5
R4
1KV PIV
3
J6
47.5K
1/2W
1%
FIL1
R13
2
D7
5 8
3
1
J8
1
4
3
FROM FILAMENT
TRANSFORMER
D3
5 8
4
J7
2
220
1/2W
5% FLAMEPROOF
R9
1KV PIV
1N4007
R1
47.5K
1/2W
1%
30V
APPROX -45V
R3
R5
5
3W
5% FLAME
PROOF
5
3W
5% FLAME
PROOF
D2
1N4007
3
1KV PIV
J11
660V
372V
NOTE: D, 3, 4, 6, 7, 10 , 11 ARE NOT USED AS INDICATED BY
Do Not Place 'DNP'.
0
3/13/06
REV
CAUTION:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
CONTROL ISSUE
Date
Signatures:
Appvd by
Date
Date:
Drawn:
08/17/05
GM
11880 Borman Drive, St. Louis, MO 63146
First Used On:
Checked:
NOTES:
1) CAUTION: SHOCK HAZARD!!
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTERNAL PARTS.
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
B
Chgd By
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
4
A
Ecr(s)/Ecn(s)
DESCRIPTION
4
Released:
Drawing Size:
Plot Time:
Drawing Type: Schematic
Tolerance:
Class Code:
Sheet
C
D
C
Plot Date: Thu Apr 20, 2006
E
1
of
NONE
Drawing Title:
SCHEMATIC - TUBE BD
Drawing Number:
07S365
1
F
BustedGear.com
BustedGear.com
Ampeg SVT-VR Driver / Phase Inverter
A
B
C
D
E
+380V
F
+300V
+305V
J5:B
OPTIONAL
C17
1%
VDC
5.7V
VDC C14
J7:B
FIL1
FIL2
R59
R47
FIL1
FIL2
J8
0.4V
D23
D24
1N3070
1N3070
VDC
1M
1/2W
1%
R38
825
1/2W
1%
120K
P2
1.82K
1%
50K L
CW
C9
.1
250V
R27
R20
475.0K
1/2W
1.82K
1%
R22
68.1K
1/2W
1per
R43
J23
1
CW
R13
FIL2
FIL1
5.5V
P3
2
J10
APPROX -45V
30V
47.5K
1/2W
1%
SLAVE OUT
APPROX -45V
68.1K
1/2W
1%
50K L
DRIVE-A
DRIVE-B
30V
J3:A
TO SPKR OUT BD
BIAS 1
R57
BALANCE
221.0
1%
1/8W
2
R25
1%
R54
2.21K
1%
1
47K
1W
R17
150K
1/2W
1%
R42
475.0K
1/2W
1%
R24
-150V
R46
100 pF
1KV
475.0K
1/2W
1%
FIL1
FIL2
BIAS 2
C15
R50
.047
400V
5.5V
.1
400V
C18
J7:A
FIL1
FIL2
150K
1/2W
1%
VDC
J5:A
.1
400V
1.0K
1%
47K
5W
C10
221K
1/2W
1
OPTIONAL
C16
68.1K
1/2W
1%
R51
R28
R39
R44
CW
50K L
VDC
P1
R5
2
150K
C6
PWR AMP IN
1/2W
1%
R6
120K
.047
400V
R9
-150V
2
7
150K
1/2W
1%
+300V
+12V
5
-15V
FIL2
FIL1
R11
R55
4
6
47K
5W
1.0K
1%
3
{Value}
J13
R56
POST GND
47K
1W
R21
1M
1/2W
1%
6
TO PREAMP BD
J6
OUTPUT
1
J3:B
+305V
PREAMP OUT
N/C
7
+480V
ASSY PART # 07-792-01
3
3
R65
T1
#4
#7
4:1
S1:A
PRE/POST
511.0
1%
#8
#2
#9
R63
N/C
R64
4:1
TI
J24
1
PRE BAL
TC
2
PRE GND
{Value}
1
P4
TC
S1:B
GND
2
2K A
R70
TO
221K
1/2W
1%
J17
3
511.0
1%
TI
GND
TO PREAMP BD
47.5
1/2W
1%
CW
TO
BALANCED OUT
I
1
I
R71
10K
1/2W
1%
BAL OUT LEVEL
C
C
O
O
J20
A
3/14/06
REV
CAUTION:
INITIAL ISSUE
Date
DESCRIPTION
Signatures:
4
02/16/05
Appvd by
Date
-
Released:
Drawing Size:
Drawing Type: Schematic
Class Code:
Sheet
C
D
C
Plot Date: Tue Mar 14, 2006
Plot Time:
Tolerance:
4
11880 Borman Drive, St. Louis, MO 63146
First Used On:
Checked:
NOTES:
1) CAUTION: SHOCK HAZARD!!
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTERNAL PARTS.
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
B
Chgd By
Date:
REM
Drawn:
A
Ecr(s)/Ecn(s)
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
E
1
of
NONE
Drawing Title:
SCHEM- PWR AMP/SUPPLY
Drawing Number:
07S792
2
F
A
B
C
FIL1
D
RELAY CONTROL
4
1
D-GND
68.1K
1/2W
1%
J9
7
D-GND
0 VDC @ TURN- ON
> 9 VDC AFTER 20 SEC.
C23
1N4007
1N4007
R66
47
450V
220K
47
450V
1
D-GND
1W
475.0K
1/2W
1%
.1
275V UL
D-GND
D30
1N4007
C29
1N4007
C25
R69
Power Amp/Supply
R67
47
450V
150K
2W
100
450V
Ampeg SVT-VR
220K
1W
J12
ICL1
D-GND
+15V
D-GND
R37
20 A
D35
J21
+300V
1N4007
1KV PIV
22K
FIL2
IC4:A
R8
D-GND
47K
1N914
1
C27
C24
TO PWR XFMR
YEL
7
450V
47
J22
D19
IC4:B
5
1K
1/2W
1%
450V
100
D36
1N4007
D15
D-GND
R31
TO PWR XFMR
R33
+15V
2.2K
2
C22
C28
1N4007
D29
R61
TO PWR XFMR
3
47K
5W
150K
2W
470K
2.2K
R60
6.8K
10W
R68
100
450V
D31
D27
R41
R35
R62
1N4007
C21
2.2
50V
D32
D28
475.0K
1/2W
1%
220
16V
C11
220
1W
1N4007
R58
C19
TO TUBE BD
R52
C20
.1
275V UL
2N5210
6
DRIVE-B
6.3VAC
BETWEEN
LINES
1N4007
+380V
R45
Q3
5
DRIVE-A
D26
TO PWR XFMR
D20
1N914
TO AC TERM BD
VDC
D25
J11
3
220
1W
+480V
TO OUTPUT XFMR
+15V
2
R53
F
J18
J2
1
E
D-GND
D-GND
6
TLO-72
Q2
TLO-72
D16
R16
R23
R34
R40
R32
R14
2.2K
470K
22K
22K
100K
+305V
1M
Q1
2
J19
TO TUBE BD
1N914
C26
100
250V
MPS-A13
2N5210
2
D33
J15
TO PWR XFMR
C8
-150V
1N4007
D-GND
2.2
50V
D34
J16
D-GND
TO PWR XFMR
1N4007
VDC
3
1
R30
D22
R3
5
J14
R4
2.2K
1/2W
IC3:B
7
R49
TLO-74
3
1
C3
2
7805
FILAMENT XFMR
1N914
R15
D-GND
R10
475
1/2W
1%
100
1/2W
1%
R7
+15V
J4
110K
D8
3
1
2
3
10
IC3:C
D9
8
R26
C7
.1
100V
R1
R2
2.2K
1/2W
2.2K
1/2W
TLO-74
1N914
D1
1N4007
IN
+12V_OUT
GND
C5
D7
1N4007
1500
35V
12
1
2W
14
220
16V
TLO-74
C1
D-GND
D-GND
1N914
.047
100V
C12
470
35V
C13
.047
100V
D3
1N4744
R36
D11
-15V
100
1/2W
1%
R19
1N4007
D-GND
3
D13
D10
13
D2
1N4744
C2
C4
1N4007
IC3:D
+12V
1500
35V
GRN
R48
3
2
7812
D14
1N4007
+15V
9
1K
1/2W
1%
100
1/2W
1%
4
1
100
R12
R29
475
1/2W
1%
110K
D17
D6
1N4007
1N4007
D18
D-GND
+15V
1N4007
A
3/14/06
REV
CAUTION:
INITIAL ISSUE
Date
DESCRIPTION
Signatures:
Chgd By
Appvd by
Date
Date:
Drawn:
4
Power Table
NOTES:
1) CAUTION: SHOCK HAZARD!!
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTERNAL PARTS.
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
B
Ecr(s)/Ecn(s)
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
A
D-GND
D-GND
GRN
D-GND
D-GND
J1
2
10
35V
D-GND
1/2W
+15V
D-GND
D21
+5_OUT
GND
6
R18
100V PIV
1N5401
IN
2.2K
D5
D12
1
TO PWR XFMR
+15V
TLO-74 1N914
1
2W
D-GND
D4
2
1K
1/2W
1%
100V PIV
1N5401
IC3:A
C
02/16/05
REM
RefDes
-15V
+15V
IC2
4
8
-
Released:
C
IC3
11
4
Plot Date: Tue Mar 14, 2006
Drawing Size:
IC4
4
8
Plot Time:
Drawing Type: Schematic
IC5
11
4
IC6
4
8
Tolerance:
Class Code:
Sheet
D
4
11880 Borman Drive, St. Louis, MO 63146
First Used On:
Checked:
E
2
of
NONE
Drawing Title:
SCHEM- PWR AMP/SUPPLY
Drawing Number:
07S792
2
F
BustedGear.com
A
B
C
D
E
F
+315V
V4:A
ULTRA LOW
J11
1
MIDRANGE SELECT
SW1:A
C25
SW2
C
3
5
B
470pF
500V
SW3
L
1
L
A
CMN
CTR
2
R14
C46
.1
100V
100K
1/2W
1%
.022
400V
9-PIN
+12V
ULTRA HIGH
R
C45
5
3
CTR
A
CMN
SWITCH BREAK-OFF PC BOARD #1
SW1:B
C6
R81
A
C
.22
R80 250V
1K
1/2W
1%
B
2
R78
100K
1/2W
1%
+12V
4
-15V
5
1
2
3
4
J15
J13
.156 7 PIN HDR
+315V
190VDC
R73
10M
1/2W
1%
2
C37
C43
.1
400V
470pF
500V
R22
9V
9-PIN
C3
R18
.01
400V
1M
1/2W
1%
CW
1M A
BASS
C16
.0022
400V
R37
150K
1/2W
1%
+12V
R36
150K
1/2W
1%
C18
1M A
.0022
400V
3.32K
1/2W
1%
2
140VDC
560
CW
R59
1M A
100K
1/2W
1%
P2
TREBLE
R70
47K
2W
C8
50 pF
500V
R62
R61
33.2K
10.0K
C42
1%
1%
R58
1.5K
1/2W
1%
P1
R33
.01
400V
R7
CW
VOLUME
C17
.0022
400V
C29
12.5V
R11
R19
.001
400V
P4
9-PIN
R13
1M
1/2W
1%
C30
V2:A
9-PIN
+12V
9-PIN
221K
1/2W
1%
150VDC
V4:B
V3:A
.01
400V
V3:B
47K
2W
475.0K
1/2W
1%
C31
1
2
3
4
C20
R43
221K
1/2W
1%
+315V
R9
13.5V
R8
.25V
J16
+315V
1
2
3
4
5
6
J14
135VDC
1M
1/2W
1%
PREAMP
7
+480V
+315V
.0022
R32 400V
Ampeg SVT-VR
6
1
2
3
4
5
6
47K
2W
.0022
400V
1
3
R79
C19
J10
1
1M
1/2W
1%
R
0.4V
190VDC
22K
R63
56K
2W
.0047
100V
68.1K
1/2W
1%
R23
R65
221K
1/2W
1%
C34
.68
250V
6.81K
1/2W
1%
MIDRANGE
+315V
3
+315V
R74
R6
221K
1/2W
1%
1.3V
200VDC
R24
V2:B
+315V
+480V
C7
47
450V
40mV
V1:A
J7
221K
1/2W
1%
8.5K
5W
R76
R67
.68
250V
475
1/2W
1%
P3
CW
.033 100V
CMN
3
300mH
+12V
2
100mH/300mH/800mH
2
800mH
1
.15
100V
C47
9-PIN
3
681
1/2W
1%
4
100mH
C5
1
R68
50K L
221K
1/2W
1%
C4
9-PIN
C32
L1
R10
3.32M
1/2W
1%
R5
3.32K
1/2W
1%
1.2V
205VDC
.1
400V
R12
47K
2W
R42
221K
1/2W
1%
B
A
05/11/06
REV
CAUTION:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
WFB
Date
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
Signatures:
Date:
Drawn:
9-PIN
8/25/05
REM
1901 Congressional, St. Louis, MO 63146
First Used On:
Checked:
NOTES:
1) CAUTION: SHOCK HAZARD!!
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTERNAL PARTS.
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/10W-5% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
B
R01922
INITIAL ISSUE
V1:B
4
A
3-7-06
CHG CAP VALUES FM .22 TO .1
4
Released:
Drawing Size:
Plot Time:
Drawing Type: Schematic
Tolerance:
Class Code:
Sheet
C
D
C
Plot Date: Thu May 11, 2006
E
1
of
NONE
Drawing Title:
BASS AMP
Drawing Number:
07S598
2
F
BustedGear.com
A
B
C
D
E
F
G
SWITCH BREAK-OFF PC BOARD #2
1
C51
R34
.1
400V
68.1K
1/2W
1%
R35
ULTRA HIGH
1M
1/2W
1%
SW5:A
1
SW4:A
A
A
C
C
Ampeg SVT-VR
PREAMP
B
B
ULTRA LOW
SW4:B
C52
SW5:B
A
A
C
C
2
3
4
3
4
J9
2
1
B
470pF
500V
B
J12
JACK BOARD BREAK-OFF PC BOARD
1
J1
RING
C1
RING_SW
2
CH 1 BRIGHT
TIP_SW
.0047
100V
TIP
R1
SLEEVE
2
+315V
+315V
100K
1/2W
1%
R20
J2
RING
200VDC
R16
1.1V
221K
1/2W
1%
110mV
0VDC
CH 1 NORMAL
TIP
SLEEVE
R3
47.5K
1/2W
1%
1
J5
J8
2
C49
C36
.1
400V
.001
400V
1
R15
3.32M
1/2W
1%
RING_SW
TIP_SW
TIP
SLEEVE
C2
.0047
100V
C50
C48
.1
400V
470pF
500V
R69
CW
221K
1/2W
1%
1M A
VOLUME
P5
10M
1/2W
1%
{Label}
RING
V5:B
R44
+12V
2
J3
CH 2 BRIGHT
V5:A
15.5V
100K
1/2W
1%
RING_SW
TIP_SW
250VDC
R71
A
100K
1/2W
1%
C35
R17
CW
3.32K
1/2W
1%
1M A
R21
3.32K
1/2W
1%
R2
.001
400V
BASS
P7
C33
.01
400V
100K
1/2W
1%
CW
R60
1M A
100K
1/2W
1%
P6
TREBLE
C44
R64
3
.0047
100V
22K
3
J4
RING
RING_SW
TIP_SW
CH 2 NORMAL
TIP
SLEEVE
R4
47.5K
1/2W
1%
1
J6
2
+315V
+11VDC OPERATE
-13VDC STANDBY
R28
1M
R27
5
1M
6
IC1:B
7
R31
R26
1K
470
J17
NE5532
R30
3
100K
2
IC1:A
1
1K
J18
1N914
75V PIV
NE5532
R29
4
D1
R25
4
100K
+11VDC OPERATE
-13VDC STANDBY
-15V
B
A
05/11/06
REV
CAUTION:
3-7-06
CHG CAP VALUES FM .22 TO .1
Date
DESCRIPTION
Signatures:
5
B
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
Date:
Drawn:
A
WFB
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
NOTES:
1) CAUTION: SHOCK HAZARD!!
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTERNAL PARTS.
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
R01922
INITIAL ISSUE
8/25/05
REM
4. VOLTAGES IN RECTANGLES ARE PEAK TO PEAK SIGNAL
VOLTAGES. OTHER VOLTAGES ARE D.C.
5. TEST CONDITIONS: VOLUMES @ 10,
TONES FLAT, AND SWITCHES @ CENTER OR LEFT.
6. CIRCUIT GND
LED GND
CHASSIS GND
.
5
Released:
Plot Date: Thu May 11, 2006 Drawing Size:
Plot Time:
Tolerance:
D
E
C
Drawing Title:
BASS AMP
Drawing Type: Schematic
Class Code:
Sheet
C
1901 Congressional, St. Louis, MO 63146
First Used On:
Checked:
F
2
of
NONE
Drawing Number:
07S598
2
G
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