Ampeg SVT400 Schematic

Page 1
A
B
C
D
E
F
G
+16V
1/4W
5per
R1
1K
1N914
75V PIV
1N914
75V PIV
D1
R11
1/4W
5per
D2
75V PIV
1K
1/4W
+16V
1N914
75V PIV
-16V
R4
2.2K 5per
D7
1N914
S1:A
1/4W
5per
PRE/POST TOP
R3
68K
TI
TI
TC
TC
TO
TO
C2
100V
.22
3
2
1/4W
R6
7.5K 5per
1/4W
5per
R5
68K
C3
56 pF
200V
IC2:A
NE5532
R17
1/4W
R7
10K 5per
+16V
1
S1:B
-20dB BOT
I
I
C
C
O
O
R16
1K
1/4W
5per
C1
.022 50V
IC3:B
5
7
6
TLO-74
R2
1M
1/4W 5per
R72
22K
1/4W
5per
*
2.25V P-P 0V DC
IC4:A
C7
.022
-16V
IC3:D
TLO-74
50V
14
D8
12
13
R12
1M
1/4W
5per
+16 VDC LIMIT OFF
10
9
TLO-74
0 VDC LIMIT ON
C8
.1
50V
IC3:C
R13
8
15K
1/4W
5per
Q1
G
J175
3
2
NE5532
R14
33K
1/4W
5per
C9
33 pF
200V
S
D
OC1
VTL-5C7
C36
1
R15
1.5K
22
1/4W
16V
5per
5per
R19
1.5K 1/4W
5
6
R18
C10
56 pF 200V
*
IC4:B
NE5532
C35
*
7
C11
50V
R42
*
10
1V P-P
EFFECTS RET
J4
J3
J5
P0WER AMP IN
0V DC
1
TEST POINT CONDITIONS: INPUT SIGNAL AT J9 PIN 2.
2
1V P-P @ 1KHz SINE WAVE J9 PIN 3 CONNECTED TO J9 PIN 4, 120VAC LINE VOLTAGE , NO LOAD.
J9
TUNER/PRE LINE OUT
EFFECTS SEND
EFFECTS RETURN
PREAMP OUT
LIMITER
PREAMP GROUND
+16V
-16V
DIRTY GROUND
LIMIT LED
1
2
3
4
5
6
7
+16V
8
-16V
9
10
J2
EFFECTS SEND
1V P-P
0V DC
PREAMP OUT
3
+16V
IC2:B
5
7
6
NE5532
R8
10K 1/4W 5per
C4
220 pF
100V
D5
1N914
75V PIV
D6
-16V
C31
100 pF
200V
5V P-P
SOME OFFSET POSSIBLE
R43
1.5K
1/4W
5per
D9
1N914
75V PIV
R75
*
D10
1N914
75V PIV
R74
1N914
75V PIV
R76
22K 1/4W 5per
D3
1N914
75V PIV
C6
63V
R26
1/4W
5per
1V P-P
IC3:A
1V P-P
R10
330
1/4W
5per
1
0V DC
1/4W
5per
0V DC
R9
330
R71
1.5K 1/4W 5per
OUTPUT
INPUT
XLR LINE OUT
2
1
3
J1
FROM SHEET 2
TO SHEET 2
1
2
3
C5
47
63V
D4
1N914 75V PIV
-16V
47
15K
3
2
TLO-74
R73
*
*
RED
GREEN
4
POWER TRANSFORMER CHASSIS MOUNTED
RED
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.
5
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, 1/8W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
A
J11
250mV P-P ripple
100V
C26
.1
+64V DC
C25
.1
100V
J12
J8
DB1
MP-2504L
C22
C21
*
*
C23
*
C24
*
-64V DC
250mV P-P ripple
4) NOTE: GROUND SYMBOLS REPRESENT GROUNDS AS SHOWN:
DIRTY GND
5) NOTE: TEST POINTS ARE FOR -01 ASSY. OTHER ASSYS ARE SIMILAR.
SIGNAL GND
CHASSIS GND
6) * SEE PARTS LIST.
B
C
+HV
R65
100K
1/4W
5per
-HV
R66
100K 1/4W
5per
R67
*
R69
R68
*
R70
*
*
ASSY PART # 07-388-01 ASSY PART # 07-388-02
ASSY PART # 07-388-03
D
D23
1N5353B
16V
D24
1N5353B 16V
C28
+16V
C27
100
35V
C29
.1
50V
100 35V
C30
50V
.1
-16V
1 0
12/18/03
A
REV
Drawn:
Checked:
CORRECTED -02, ADDED -03 AS SHOWN.
9/23/04
CONTROL ISSUE
2/13/04
INITIAL ISSUE
Date
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Signatures:
REM
ST. LOUIS MUSIC, INC
Date:
08/08/03
-
N01612
Ecr(s)/Ecn(s)
First Used On:
-
REM
Chgd ByDESCRIPTION
11880 Borman Drive, St. Louis, MO 63146
--
Appvd by Date
Released:
Plot Date:
Mon Sep 27, 2004
Tolerance:
E
Drawing Size:
Drawing Type: Schematic
Class Code:
Sheet
of 21
F
Drawing Title:
C
SCHEMATIC - POWER AMP
Drawing Number:
NONE
07S388
G
4
5
-
Page 2
A
OUTPUT
TO SHEET 1
R20
1/4W 5per
1
INPUT
FROM SHEET 1
2
3
1N3070TR
200V PIV
MPS-A06
2.7K 1/4W 5per
Q17
MPS-A56
1N3070TR
200V PIV
D32
Q2
R22
2.7K 1/4W
5per
D34
R23
R77
4.7K 1/4W
5per
D33
1N3070TR
200V PIV
R32
4.7K
1/4W
5per
0
+5.5V DC
0
-5.5V DC
R33
4.7K
1/4W
5per
D35
1N3070TR
200V PIV
+16V
-16V
1/4W
5per
R25
680
C12
35V
47
B
680
R21
33
1/4W
5per
Q4
2N5415
100V
C13
330
50V P-P
Q5
MPS-A06
Q6
MPS-A06
C32
330
100V
+5.5V DC OFFSET
1N4743ARL
1N4743ARL
13V
1N4743ARL
1N4743ARL
50V P-P
-5.5V DC OFFSET
D15
D16
13V
270K 1/4W
5per
13V
R31
13V
D18
D17
R79
1/4W 5per
47K
CW
R30
R27
680 1/4W 5per
R28
100
1/4W
5per
BIAS ADJUST
500
AP1
R29
470 1/4W 5per
100 1/4W 5per
Q13
2N3440
R24
33 1/4W
5per
R78
47K
1/4W 5per
1N3070TR
200V PIV
MPS-A06
MPS-A56
1N3070TR
200V PIV
D31
1N4002TR
100V PIV
D25
Q8
D28
C34
680 pF 200V
Q3
D29
1N4002TR 100V PIV
C15
.022 50V
1N3070TR
200V PIV
D27
1N3070TR
200V PIV
D26
C14
C
.022 50V
C33
680 pF
200V
1/2W
5per FP
FLAMEPROOF
R44
47
1/2W
5per FP
FLAMEPROOF
R45
*
R46
*
R34
*
R35
*
R36
47
IRFP-240R
Q10
IRFP-9240R
Q14
G
D
S
R47
.47
5W
5per
R37
.47
5W
5per
R38
47
1/2W
5per FP
FLAMEPROOF
D
R51
47
1/2W
5per FP
FLAMEPROOF
R39
.47 5W
5per
Q11
IRFP-9240R
Q15
IRFP-240R
G
R48
5per
.47
5W
D
S
R40
47
1/2W
5per FP
FLAMEPROOF
R49
47
1/2W
5per FP
FLAMEPROOF
5per
Q12
IRFP-9240R
IRFP-240R
R41
.47 5W
Q16
G
R50
5per
E
+HV
D
S
.47 5W
R82
47
1/2W
5per FP
FLAMEPROOF
*
D
Q25
G
IRFP-240R
S
*
R84
.47
5W
5per
*
F
BIAS ADJUSTMENT: WITH NO SIGNAL AND NO LOAD , ADJUST AP1 TO PRODUCE 25 +/- 5mV AVERAGE ACROSS R37, R39, R41, R47, R48, R50, R81 AND R84,
50V P-P
-
INSTALL COMP. SIDE
G
J13
J6
SPEAKER OUTPUT
1
SPKR GND
OUTPUT
R81
50V P-P
D19
1N914
75V PIV
K1
+HV
INSTALL COMP. SIDE
-
R52
3.3
1W
5per
R53
1.5K .47 5W
5per
C16
100V
5W
.1
5per
J7
SPEAKER OUTPUT
J14
SIGNAL GROUND
2
*
R83
47
1/2W
*
5per FP
FLAMEPROOF
Q24
IRFP-9240R
*
-HV
­<100mV DC
3
J10
1
2
R54
*
R85
4
FAN
CHASSIS MOUNTED
RED
BLACK
*
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.
5
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, 1/8W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER.
A
R55
*
R56
*
+HV
C17
220
63V
+45 VDC SLOW SPEED
+17 VDC FAST SPEED
Q18
TIP-31C
R58
47
1/4W
5per
R57
4.7
*
1/4W 5per
B
D21
D22
1N914
75V PIV
R62
15K 1/4W 5per
Q19
+16V
1
V+2OUT
LM35DZ
GND
3
R59
*
R87
MPS-A13
D20
1N754ARL
*
6.8V
4) NOTE: GROUND SYMBOLS REPRESENT GROUNDS AS SHOWN:
DIRTY GND
5) NOTE: TEST POINTS ARE FOR -01 ASSY. OTHER ASSYS ARE SIMILAR.
SIGNAL GND
CHASSIS GND
6) * SEE PARTS LIST.
C
+HV
*
Q22
J175
G
+16V
D
S
R64
1/4W 5per
10K
Q23
MPS-A06
R60
4.7K
1/4W
5per
R63
1/4W
22K
5per
­+6.7 V DC
Q20
2N5210
4
Q21
2N5210
R61
15K 1/4W
5per
1/4W 5per
R80
1.5K
C18
470
10V
D
C19
22 35V
C20
22 35V
1 0
12/18/03
A
REV
Drawn:
Checked:
CORRECTED -02, ADDED -03 AS SHOWN.
9/23/04
CONTROL ISSUE
2/13/04
INITIAL ISSUE
Date
Signatures:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
Date:
08/08/03
REM
-
N01612
Ecr(s)/Ecn(s)
First Used On:
-
Released:
Plot Date:
Mon Sep 27, 2004
Tolerance:
E
Drawing Size:
Drawing Type: Schematic
Class Code:
Sheet
of 22
F
Drawing Title:
C
SCHEMATIC - POWER AMP
Drawing Number:
NONE
REM
Chgd ByDESCRIPTION
11880 Borman Drive, St. Louis, MO 63146
--
Appvd by Date
07S388
G
5
-
Page 3
A
B
C
D
E
F
1
PRE/POST TOP
HS3
SPEAKER OUTPUT
K1 J7
J13
D19
C23
C25
J8
2
J11
J12
JW5
SPEAKER OUTPUT
J6
J14
C21
C16
JW4
C24
4321
JW6
DB1
C22
C26
D15
D16
Q14
R44
JW1
JW33
R52
JW3
R82
JW32
C17
J10
1
JW2
JW49
C33
Q15
R51
Q16
R49
R53
HS4
JW7
Q18
R55
R54
R58
R56 R57
R45
Q12
JW35
IC1
Q6
INS3
Q25
D17
R50
JW48
R29 R30
JW40
C34
JW50
R40
Q24
JW30
JW8
Q11
R38
R36 R83
Q10
JW46
R47
R37
JW42
R39
JW34
R87
R59
JW43
D18
R48
D26
C15
D25
R46
R27 R28
R20 R21
R78
D29
JW9
JW36
D32
JW38
R41
D33
JW41
D35 D34
R77
JW39 R79 D31
R34
D27
R32
D28
JW45
C14
R35
JW10
R64
JW12
R31
JW13
P0WER AMP IN
J5
Q3
Q5
AP1
C13
Q17
Q2
R25 R24
JW14
C32
Q8
Q19
Q20
Q21
D21
JW17
JW16
Q22
C18
PREAMP OUT
J4
B
Q4
E
C
JW44
JW18
DGS
JW15
R69
R67
JW20
HS2
C12
JW37
R33
B
HS1
E
C
Q13
R23 R22
R65
JW11
R63
R80
D20 R61 R62
D22 R60
C19
C20
Q23
EFFECTS RET
J3
R12
C7
D7
R11
D8
R73
IC3
JW22
R13
R26
R66
JW23
R19
JW19
R17 R16 C31
R43
D9
JW47
R76
D10
R42
C11
C1 R2
C29
JW21
EFFECTS SEND
R4
R1
D1 D2
R8 C4
JW26
IC4
C10
R15
R18 R74
R75
R71
R70
R68
JW29
-20dB BOT
J2
R3
C2
R6
IC2
C36
C35
S1
C3 R5
JW25
C30
JW24
R7
D5 D6
C9
R14
DGS
Q1
OC1
J9
1
XLR LINE OUT
J1
R72
R10
C6
JW31
C5
JW28
JW27 R9
C8
C27
D23
D24
C28
D3 D4
1
2
3
3.) 07-388-02 ASSY - INSTALL J13 & J14 COMPONENT SIDE.
2.) FOR ASSEMBLY P/N: 07-388-01 & 07-388-02 & 07-388-03 USE SCHEMATIC # 07S388
4
NOTES:
1. GOOP IN ACCORDANCE WITH PRODUCTION S.O.P.
CAUTION: THIS ASSEMBLY DRAWING 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
B
R84R85
ASSY PART # 07-388-01 ASSY PART # 07-388-02
ASSY PART # 07-388-03
C
R81
3
CORRECTED -02
9/24/04
2/13/04
12/17/03
Date
ADDED -03 CONTROL ISSUE
INITIAL ISSUE
Signatures:
DESCRIPTION
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
ST. LOUIS MUSIC, INC
Date:
REM
10/06/03
-
1 0
A
REV
Drawn:
Checked:
Released:
Mon Sep 27, 2004
Plot Date:
Plot Time:
08:02:30
Tolerance:
D
Drawing Size:
Drawing Type:
Class Code:
Sheet
1
E
ASSEMBLY
of
C
NONE
1
N01612
Ecr(s)/Ecn(s)
First Used On:
REM
Chgd By
Appvd by
11880 Borman Drive, St. Loui s, MO 63146
Drawing Title:
PWA - POWER AMPLIFIER
Drawing Number:
F
Date
4
-
07-388
Page 4
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