Ampeg SVT-VR Schematic Binder - BustedGear.com compilation of Ampeg SVT-VR schematics. ...
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DCBA
4
3
2
NOTES:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.CAUTION:
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWERAND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS.
1) CAUTION: SHOCK HAZARD!!
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 OSCILLOSCOPEAND 10 MEGOHM DIGITAL VOLTMETER.
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
DCBA
1
FE
1
Signatures:
Checked:
Drawn:
Sheet
Class Code:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Drawing Size:
Drawing Type: Schematic
Released:
REV Date DESCRIPTION
E
Tolerance:
Plot Date:
Plot Time:
Thu Apr 20, 2006
0 3/13/06
1
GM
CONTROL ISSUE
C
of
Drawing Title:
Drawing Number:NONE
1
Ecr(s)/Ecn(s)
First Used On:
ST. LOUIS MUSIC, INC
Date:08/17/05
11880 Borman Drive, St. Louis, MO 63146
Chgd By
Appvd by
F
07S365
2
SCHEMATIC - TUBE BD
Date
4
3
DCBA
4
3
2
NOTES:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.CAUTION:
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWERAND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS.
1) CAUTION: SHOCK HAZARD!!
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 OSCILLOSCOPEAND 10 MEGOHM DIGITAL VOLTMETER.
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
DCBA
1
FE
1
Signatures:
Checked:
Drawn:
Sheet
Class Code:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Drawing Size:
Drawing Type: Schematic
Released:
REV Date DESCRIPTION
E
Tolerance:
Plot Date:
Plot Time:
Thu Apr 20, 2006
0 3/13/06
1
GM
CONTROL ISSUE
C
of
Drawing Title:
Drawing Number:NONE
1
Ecr(s)/Ecn(s)
First Used On:
ST. LOUIS MUSIC, INC
Date:08/17/05
11880 Borman Drive, St. Louis, MO 63146
Chgd By
Appvd by
F
07S365
2
SCHEMATIC - TUBE BD
Date
4
3
1
FIL2
FIL1
FIL1
660V
FIL2
FIL2
FIL1
372V
J7
FIL1
FIL2
TO POWER AMPJ10
30V
FIL2
1KV PIV1N4007
D6
APPROX -45V
1KV PIV1N4007
D4
660V
R12220
1/2W5% FLAMEPROOF
1/2W1%
47.5KR4
1KV PIV1N4007
D3
1%1/2W47.5KR14
FIL111
53W5% FLAME PROOF
R15
R9220
1/2W5% FLAMEPROOF
1KV PIV1N4007
D10
1KV PIV1N4007
D9
1KV PIV1N4007
D8
1N4007
D5
1KV PIV
J12
J8
7
2
45
3
8
J2
53W5% FLAME PROOF
R5
D12
1N4007
1KV PIV
D1
1N40071KV PIV
D21N4007
1KV PIV
NOTE: D, 3, 4, 6, 7, 10 , 11 ARE NOT USED AS INDICATED BY Do Not Place 'DNP'.
TRANSFORMER
FIL1
30V
FIL2
FIL2
FROM FILAMENT
APPROX -45V
R1347.5K1/2W1%
FIL2
R8220
1/2W5% FLAMEPROOF
1%1/2W47.5KR6
2201/2W
R7
5% FLAMEPROOF
53W5% FLAME PROOF
R11
FIL1
R22201/2W
5% FLAMEPROOF
FIL1
R1647.5K1/2W
1%
1KV PIV1N4007
D1153W5% FLAME PROOF
R18
372V
J11
1KV PIV
1N4007D7
R102201/2W
5% FLAMEPROOF
TO POWER AMP
1
2
3
4
5
6
7
J9
{Value}
7
2
45
3
8J4
53W5% FLAME PROOF
R17
7
2
45
3
8
J1
7
2
45
3
8
J5
R147.5K1/2W1%
53W5% FLAME PROOF
R3
7
2
45
3
8
J6
7
2
45
3
8
J3
DCBA
4
3
2
NOTES:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.CAUTION:
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWERAND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS.
1) CAUTION: SHOCK HAZARD!!
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 OSCILLOSCOPEAND 10 MEGOHM DIGITAL VOLTMETER.
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
DCBA
1
FE
1
Signatures:
Checked:
Drawn:
Sheet
Class Code:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Drawing Size:
Drawing Type: Schematic
Released:
REV Date DESCRIPTION
E
Tolerance:
Plot Date:
Plot Time:
Tue Mar 14, 2006
A 3/14/06
1
REM
-
-
-
INITIAL ISSUE
C
of
Drawing Title:
Drawing Number:NONE
2
Ecr(s)/Ecn(s)
First Used On:
ST. LOUIS MUSIC, INC
Date:02/16/05
11880 Borman Drive, St. Louis, MO 63146
Chgd By
Appvd by
F
-
07S792
2
SCHEM- PWR AMP/SUPPLY
Date
4
3
VDC
VDC
N/C
POST GND
VDC
FIL2
FIL1
+380V
FIL2
+300V
-150V
-150V
+305V
FIL2
DRIVE-B
DRIVE-A
PRE BAL
PRE GND
-15V
+12V
OUTPUT
R7110K
1%1/2W
R551M
1/2W1%
0.4V
R59
1.0K1%
R65
511.01%
R6347.51/2W1%
R57
1%221.0
1/8W
R542.21K
1%
5.7V
FIL1
C18
.1400V
CW50K LP3
BALANCE
C9.1
250V
FIL2
VDC
OPTIONALC16
1
VDC
R42
1/2W1%
475.0K
5.5V
C6
.047400V
FIL1
C10
.047400V
CW50K L
P1
BIAS 1
1per
R2268.1K1/2W
CW50K L
P2
BIAS 2
+305V
30V
30V APPROX -45V
APPROX -45V
FIL1
+480V
R56
1.0K1%
R64
511.01%
D241N3070
R50475.0K1/2W1%
100 pFC15
1KV
2
1J23
J7:B
R46825
1%1/2W
R4468.1K1/2W1%
J20
R201.82K
1%
R27
1/2W475.0K
1%
FIL2FIL1
R6120K
150K
R11
1%1/2W
R17120K
R1368.1K1/2W1%
1/2W1%
150K
R28
7
6
J3:B
J5:B
PWR AMP IN
J10
TO PREAMP BD
TO PREAMP BD
5.5V
FIL1
2
1J24
{Value}
R70
221K1/2W
1%
CW
BAL OUT LEVEL
P42K A
#8
#7
#9
#4
#2
4:1 N/C
T1
4:1
J7:A
1/2W
R51221K
1%
ASSY PART # 07-792-01
+300V
47KR21
5W
1%
R4347.5K1/2W
1%1.82KR38
1%
R471M
1/2W
OPTIONAL
FIL2
R9
47K1W
R24
47K1W
1
2
3
4
5
6
7
J6
{Value} PREAMP OUT
J13
SLAVE OUT
J8 1N3070D23
O
C
I
O
C
I
S1:BGND
R5150K
1%1/2W
J3:A
J5:AC17
C14
.1400V R25
150K1/2W1%
47KR39
5W
TO SPKR OUT BD
TO
TC
TI
TO
TC
TI
GND
PRE/POSTS1:A
1
3
2
J17
BALANCED OUT
DCBA
4
3
2
NOTES:
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.CAUTION:
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWERAND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS.
1) CAUTION: SHOCK HAZARD!!
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 OSCILLOSCOPEAND 10 MEGOHM DIGITAL VOLTMETER.
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
DCBA
1
FE
1
Signatures:
Checked:
Drawn:
Sheet
Class Code:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Drawing Size:
Drawing Type: Schematic
Released:
REV Date DESCRIPTION
E
Tolerance:
Plot Date:
Plot Time:
Tue Mar 14, 2006
A 3/14/06
2
REM
-
-
-
INITIAL ISSUE
C
of
Drawing Title:
Drawing Number:NONE
2
Ecr(s)/Ecn(s)
First Used On:
ST. LOUIS MUSIC, INC
Date:02/16/05
11880 Borman Drive, St. Louis, MO 63146
Chgd By
Appvd by
F
-
07S792
2
SCHEM- PWR AMP/SUPPLY
Date
4
3
4
11
11
4
8
4
4
8
FIL1
4 8
+15V
+15V
IC6
IC5
IC3
IC2
TO PWR XFMR
TO TUBE BD
TO PWR XFMR
TO OUTPUT XFMR
VDC
-15V
D-GND
D-GND
ICL1
20 A
R52
2201W
D-GND
R481
2W
D-GND
R26
1K1/2W1%
D-GND
R30
1K1/2W
1%
R23
2.2K
R19
100
2
31
IC3:A
TLO-74
D15
1N914
110KR29
R32
22K
R37
22K
D1GRN
+15V
D-GND
+15V
D-GND
2N5210
Q3
R2
2.2K1/2W
+15V
Q2
MPS-A13
+15V
D-GND
R4568.1K
1%1/2W
1
2
3
4
J4
IC4
RefDes
TO PWR XFMR
TO PWR XFMR
TO PWR XFMR
475.0K1/2W1%
R61
475.0K1/2W1%
R58
+15V
D61N4007
D-GND
D25
1N4007
D361N4007
D321N4007
D-GND
100C29
450V
R69150K2W
100C23
450V
VDC
R68150K2W
47035V
C12
+12V
+305V
C24
450V100
C2547
450V
C2247
450V
R62
6.8K10W
D31N4744
-150V
R31
1K1/2W
1%
R67220K1W
220KR66
1W
C1100V.047
C2747
450V
C2847
450V
100V
C13.047
+15V
D-GND
R491
2W
6.3VAC BETWEENLINES
R35
2.2K
13
1214
IC3:D
TLO-74
6
57
IC3:B
TLO-74
9
108
IC3:C
TLO-74
D-GND
6
57
IC4:B
TLO-72
D-GND
47KR8
D-GND
C1922016V
D11
1N4007
D18
1N4007
D14
1N4007
C5150035V
D311N4007
C4150035V
C222016V
D-GND D-GND
DRIVE-B
DRIVE-A
TO AC TERM BD
RELAY CONTROL
+15V
Power Table
+300V
+380V
D-GND
R12475
1/2W1%
100V PIV1N5401
D21
R18
4751/2W1%
C8
2.250V
R34
470K
FIL2
C11
2.250V
R41
470K
R53
2201W
D9
1N914
R1
2.2K1/2W
R10
110K
R15
1001/2W1%
D4
1N914
R3
2.2K1/2W
R4
2.2K1/2W
D5
GRN
2N5210
Q1
D16
1N914
R16
1M
R14
100K
R40
22K
2.2KR33
TO TUBE BD
0 VDC @ TURN- ON> 9 VDC AFTER 20 SEC.
D201N914
-15V
D17
1N4007
D13
1N4007
.1C7
100V
D8
1N4007
J14
D34
1N4007
J16
J19
J21 D35
1N40071KV PIV
.1C21
275V UL
D30
1N4007
J12
D29
1N4007
.1C20
275V UL
D26
1N4007
D281N4007
J11
1 IN 3+12V_OUT
2GND
7812
D-GNDD-GND
D-GND
1035V
C3
C26100250V
R60
47K5W
D-GND
100V PIV1N5401
D22
2
31
IC4:A
TLO-72
D10
1N914
D-GND
D12
1N914
J9
1
2
3
4
5
6
7
J2
D19YEL
D71N4007
D33
1N4007
J15
J22
J18
1N4007D27
R36
1001/2W
1%
D21N4744
1 IN 3+5_OUT
2GND
78052
1J1
R7
1001/2W1%
D-GND
D-GND
+480V
FILAMENT XFMR
TO PWR XFMR
TO PWR XFMR
3-7-06
05/11/06
C
WFB
BA
4
CAUTION:
A B C D
Tolerance:
Plot Time:
Plot Date:
E
R01922
F
4
2
NOTES:
1
Checked:
Drawn:
Released:
REV Date
Sheet 1 of 2
NONE
Date:
8/25/05
Appvd by
3
1
A B C D E F
2
Thu May 11, 2006 Drawing Title:
1901 Congressional, St. Louis, MO 63146
ST. LOUIS MUSIC, INC
3
Signatures:
Drawing Number:
BASS AMP
07S598
First Used On:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Ecr(s)/Ecn(s) Chgd By Date
1) CAUTION: SHOCK HAZARD!!
Drawing Type: Schematic
Drawing Size:
INITIAL ISSUE
CHG CAP VALUES FM .22 TO .1
TOUCHING INTERNAL PARTS.
Class Code:
REM
DESCRIPTION
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/10W-5% TOL.
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
AND 10 MEGOHM DIGITAL VOLTMETER.
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
3-7-06
05/11/06
C
WFB
BA
4
CAUTION:
A B C D
Tolerance:
Plot Time:
Plot Date:
E
R01922
F
4
2
NOTES:
1
Checked:
Drawn:
Released:
REV Date
Sheet 1 of 2
NONE
Date:
8/25/05
Appvd by
3
1
A B C D E F
2
Thu May 11, 2006 Drawing Title:
1901 Congressional, St. Louis, MO 63146
ST. LOUIS MUSIC, INC
3
Signatures:
Drawing Number:
BASS AMP
07S598
First Used On:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Ecr(s)/Ecn(s) Chgd By Date
1) CAUTION: SHOCK HAZARD!!
Drawing Type: Schematic
Drawing Size:
INITIAL ISSUE
CHG CAP VALUES FM .22 TO .1
TOUCHING INTERNAL PARTS.
Class Code:
REM
DESCRIPTION
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/10W-5% TOL.
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
AND 10 MEGOHM DIGITAL VOLTMETER.
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
A
9V
1.3V
205VDC
1.2V
+12V
+12V
C18
.0022400V
2
1J11
40mV
C17
.0022400V
10M1/2W1%
R43
3.32M1/2W1%
R10
+315V
C47
.1400V
47K2W
R12
150VDC
A
BC
SW1:A
ULTRA HIGH
C37
.1400V
22KR58
47450V
C7
.001C30
400V
+480V
.0047C42
100V
1234
J16
.033C4
100V
33.2K
1%
R62
560R19
190VDC
.25V
+315V
56K2W
R63
R811M
1/2W1%
+315V
C6
.22250V
+12V
.68C34
250V
+315V
+480V
+12V
-15V
0.4V
12.5V
R37
150K1/2W1%
C19
.0022400V
2
1J7
R36
150K1/2W1%
C20
.0022400V
A
BC
SW1:B
V1:B
9-PIN
221K1/2W1%
R22
.01C29
400V
R59
100K1/2W1%
50 pFC8
500V
1234
J15
221K1/2W1%
R74
1M1/2W1%
R18
C45
.1100V
C31
.01400V
C46
.022400V
CW
P3
50K L
MIDRANGE
1M1/2W1%
R13
3.32K1/2W1%
R11
R67
4751/2W1%
100K1/2W1%
R78
R68
6811/2W1%
47K2W
R70
6.81K1/2W1%
R65
1
2
3
4
5
6
7
J10
.156 7 PIN HDR
+315V
+12V
13.5V
3.32K1/2W1%
R5
200VDC
221K1/2W1%
R6
1M1/2W1%
R32
V2:B
9-PIN
+315V
1.5K1/2W1%
R7
CW
P4
1M ABASS
+315V
C25
470pF500V
221K1/2W1%
R76R24
8.5K5W
10.0K
1%
R61
C43
470pF500V
V3:B
9-PIN
221K1/2W1%
R8
53
L
CMNCTR
R
MIDRANGE SELECT
SW2
140VDC
135VDC475.0K1/2W1%
R9
47K2W
R79
190VDC
+315V
V1:A
9-PIN
.0022C16
400V
68.1K1/2W1%
R33
221K1/2W1%
R42
V2:A
9-PIN
R7347K2W
C5
.15100V
C3
.01400V
CW
P2
1M ATREBLE
R14
100K1/2W1%
1800mH
2300mH
3100mH
4CMN
L1
100mH/300mH/800mH
C32
.68250V
221K1/2W1%
R23
V4:B
9-PIN
9-PINV4:A
1K1/2W1%
R80
V3:A
9-PIN
SWITCH BREAK-OFF PC BOARD #1
CW1M A
P1VOLUME
123456
J14
53
L
CMNCTR
RULTRA LOW
SW3
123456
J13
3-7-06
05/11/06
WFB
A
C
B
Plot Time:
Drawn:
REV
Sheet
INITIAL ISSUE
CHG CAP VALUES FM .22 TO .1
of 22
NONE
8/25/05
Date:
Ecr(s)/Ecn(s)
R01922
Appvd by Date
5
4
A
A
B
B
C
C
D
D
E
E
Plot Date:
Checked:
Released:
F
F
G
G
5
4
3
1
2
BASS AMP
3
1
2
NOTES:
Date
Drawing Number:Class Code:
Drawing Type: Schematic
1901 Congressional, St. Louis, MO 63146REM
ST. LOUIS MUSIC, INCTHE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Chgd ByDESCRIPTION
AND 10 MEGOHM DIGITAL VOLTMETER.
1) CAUTION: SHOCK HAZARD!!
TOUCHING INTERNAL PARTS.
CAUTION:
Tolerance:
Drawing Title:
First Used On:
Drawing Size:
Signatures:
Thu May 11, 2006
07S5983) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
3-7-06
05/11/06
WFB
A
C
B
Plot Time:
Drawn:
REV
Sheet
INITIAL ISSUE
CHG CAP VALUES FM .22 TO .1
of 22
NONE
8/25/05
Date:
Ecr(s)/Ecn(s)
R01922
Appvd by Date
5
4
A
A
B
B
C
C
D
D
E
E
Plot Date:
Checked:
Released:
F
F
G
G
5
4
3
1
2
BASS AMP
3
1
2
NOTES:
Date
Drawing Number:Class Code:
Drawing Type: Schematic
1901 Congressional, St. Louis, MO 63146REM
ST. LOUIS MUSIC, INCTHE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Chgd ByDESCRIPTION
AND 10 MEGOHM DIGITAL VOLTMETER.
1) CAUTION: SHOCK HAZARD!!
TOUCHING INTERNAL PARTS.
CAUTION:
Tolerance:
Drawing Title:
First Used On:
Drawing Size:
Signatures:
Thu May 11, 2006
07S5983) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
A
-15V
200VDC
+315V
15.5V
2
1J5
2
1J8
110mV1.1V
+12V
R30
100K
1 2 3 4
J12
1 2 3 4
J9
A
BC
SW5:B
C51
.1400V
C52
470pF500V
R25
1K
A
BC
SW4:B
J18
250VDC
.01C33
400V
.0047C44
100V
R71
100K1/2W1%
2
1J6
0VDC
3.32M1/2W1%
R15
C49
.1400V
1M1/2W1%
R35
R31
1K
A
BC
SW4:A
ULTRA HIGH
R26
470
+315V
J17
C50
.1400V
.001C35
400V
C48
470pF500V
R2
100K1/2W1%
R3
47.5K1/2W1%
C1
.0047100V
JACK BOARD BREAK-OFF PC BOARD
2
31
IC1:A
NE5532
V5:A
{Label}
R44
10M1/2W1%
221K1/2W1%
R16
+315V
A
BC
SW5:A
ULTRA LOW
R34
68.1K1/2W1%
+11VDC OPERATE-13VDC STANDBY
D1
1N91475V PIV
+11VDC OPERATE-13VDC STANDBY
V5:B R69221K1/2W1%
CW1M A
P5
VOLUME
100K1/2W1%
R20
R60
100K1/2W1%
RING_SW
TIP_SW
SLEEVE
TIP
RING
J4
CH 2 NORMALR4
47.5K1/2W1%
C2
.0047100V
RING_SW
TIP_SW
SLEEVE
TIP
RING
J2
CH 1 NORMAL
RING_SW
TIP_SW
SLEEVE
TIP
RING
J1
CH 1 BRIGHTR1
100K1/2W1%
R27
1M
100KR29
1MR28
C36
.001400V
3.32K1/2W1%
R17
6
57
IC1:B
NE5532
22KR64
3.32K1/2W1%
R21CW
P7
1M ABASS
CW
P6
1M ATREBLE
RING_SW
TIP_SW
SLEEVE
TIP
RING
J3
CH 2 BRIGHT
SWITCH BREAK-OFF PC BOARD #2
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 .
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