A B C D E F
A B C D E F
C32
.001uF
U5:A
100V
+16V
R55 R54 C27
R58
Power Table
TLO-72 RefDes -16V +16V
47K
47K 22K .22 uF
R53
D10 C35 IC1 4 8
50V
C30 47K
1N914 .047 uF
IC2 4 8
100V
1 1
1 1
R62 C37
U5:B U3 4 8
R63 C36
.0047 uF
J1
U4 4 8
100V
T/S
22K .047 uF
R60 U5 4 8
TLO-72 4.7K 1 uF R57 R52
100V R48 C26
D13 220K
50V
1N914 R67
22K 22K 22K .22 uF
R47
50V CW
10K 47K
R65 C33
-16V
5
C41 .047 uF
100V U4:A
CMN
100K
4
SWITCH
100 PF 50V
R32
2.2 uF
J2 200V
S1
3
C42 R64 C34 P1 PAGE_NEXT
T/S
R45 C25 TLO-72
56 pF C45
1K
CW
200V 50K RA R36
2.2K 2.2 uF .22 uF
47K CCW
22K
50V
50V
R56
R29
100K
47K
R46 C29 C28
J13
.015 uF .22 uF
22K
50V
50V R38
2 2
2 2
22K
J14
R27
J12
47K
J15 R51 C23 C22 U4:B
J11
R30
.033 uF C24
2.2K .033 uF
50V TLO-72
50V
R40 R39 R37
22K .22 uF
4.7K 100K 22K
50V
F1
FC2
FC1
D1
R1
J16
J18 J19
2.2K 1/2W
3A RED
DIODE
J10 J17 +40V
BRIDGE
J22 R68
C3
BR1 +16V
.0033
D11
C6 C19
270 5W
1N5353B
4700 uF .1 uF C39
J8
16V
50V 100V 100 uF
C43 C21 C18
3 3
3 J20 3
35V
.047 uF .047 uF .047 uF
C14
100V 100V 100V
J7
4700 uF D12
C1
50V 1N5353B
.0033 C38
C40
16V
.1 uF
J9 100 uF
100V R66
-40V 35V
-16V
270 5W
J13 BLK
J17 BLK
J13 BLK
AC
LINE
AC
LINE
SWAPPED J21 PINS 1 & 2, COONECTED J21
J17 BLU/WHT SWAPPED J21 PINS 1 & 2, COONECTED J21
J13 BLU/WHT
J12 BLU/WHT 1 7/28/99
1 7/28/99
TO HEADPH GS TO DETACH FROM MAIN GND N00062
TO HEADPH GS TO DETACH FROM MAIN GND N00062
CONTROL ISSUE
CONTROL ISSUE
7/01/99
AC 7/01/99 REM
0 R990512-01
0 R990512-01
LINE J12 BLUE
J12 BLUE
J16 BLUE REM
CONTROL ISSUE ECR00047
CONTROL ISSUE ECR00047
7/01/99 -
7/01/99 -
0
0
AC
J14 WHT
REV Date DESCRIPTION Ecr(s)/Ecn(s) Chgd By Appvd by Date
REV Date DESCRIPTION Ecr(s)/Ecn(s) Chgd By Appvd by Date
J14 WHT
J7 WHT
CAUTION:
CAUTION:
NEUTRAL
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
ST. LOUIS MUSIC, INC
ST. LOUIS MUSIC, INC
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
J15 BROWN
J15 BROWN
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND J11 BROWN Signatures: Date:
Signatures: Date:
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
Drawn: OK 1/14/99
Drawn: OK 1/14/99
11880 Borman Drive, St. Louis, MO 63146
11880 Borman Drive, St. Louis, MO 63146
4 4
4 4
Checked: - - First Used On:
Checked: - - First Used On:
NOTES:
NOTES:
J11 GRAY
1) CAUTION: SHOCK HAZARD!! BA115a
1) CAUTION: SHOCK HAZARD!! J11 GRAY BA115a
J17 GRAY
Released:
Released:
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
Drawing Title:
Drawing Title:
Drawing Size:
Drawing Size:
C
C
Tolerance:
Tolerance:
TOUCHING INTERNAL PARTS.
TOUCHING INTERNAL PARTS.
SCHEMATIC -BASS AMP
SCHEMATIC -BASS AMP
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. Drawing Type: Schematic
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. Drawing Type: Schematic
AC
J7 VIOLET AC
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
J7 VIOLET
J9 VIOLET
NEUTRAL
Drawing Number:
Drawing Number:
Class Code: NONE
NEUTRAL Class Code: NONE
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER. 07S103-XX
AND 10 MEGOHM DIGITAL VOLTMETER. 07S103-XX
Sheet 1 of 2
Sheet 1 of 2
A B C D E F
A B C D E F
J6
A B C D E F
A B C D E F
+40V -40V
+40V
D3 D5
R4
R8
1N914 1N914
1K
1K D7
1N914 1N4744
R34
ZENER
+16V
1 1
1 220 1
D2 D4 D6
R7
R6
1N914 1N4744
3.3K 1/2W
VTL-5C7 3.3K 1/2W
ZENER
R50
R33
PAGE_NEXT 1K
47
C31
Q4
Q2
Q6 -16V
J112
R59
U2:A
C9
MJE-340
10uF
50V 1M
35V
1 uF
C12
C44
TLO-72
10uF
R20 C10
C8 35V 33 pF
P2
CW
P3 R14 200V
CW 100K
R23
20K RA
33 pF
R22 R28
56 pF CCW
C16 100K 200V R41
47K
200V U2:B C11 R5 3.3 1W
R25 220
U3:A
1K R19
820 1W
50K LIN
.0022 uF C17
R24 10K
10uF 33K
100V TLO-72 .1 uF
P4
47K 35V NE5532
CW
100V
J3
C15
U3:B AP1
R12
500
50K LIN R17
R
.022 uF 100K
2 2
2 22K 2
R13 CW
L
P5 NE5532
50V R21 SEE NOTE. R35
22K
RING
100K C13 R44 220
J4
R18 4.7K
RING_SW T/R/S
50K LIN 330 pF
Q3
TIP_SW
R26
100V
R9
1K 47
TIP
220
MPS-A06
R43
SLVE_SW
R10 1K
SLEEVE Q1
Q5
C4 R3
MJE-350
22K
C20
R49
U1:A
IRFP-140R
1 uF
22 uF 270 R42
2
50V
50V
1
1K 47
3
R31 D8
TLO-72 R16
J5
220
1N4744
22K -16V
R15 2
ZENER
1
D9
-40V
3
22K
C2
1N4744
J21
.047 uF
U1:B XLR M H
C5 R2
1 ZENER
100V
6
2
7
5
22 uF 270
R61
50V
3 3
3 TLO-72 3
.1 3W
NOTE: R11 & C7 DESIGNATORS ARE NOT USED.
-40V
ASSY P/N 07-103-02
NOTE: BIAS SETTING AS FOLLOWS;
SET AP1 BIAS ADJUST CONTROL
FOR 5mV ACROSS R61 WITH
NO SIGNAL APPLIED, NO LOAD.
SWAPPED J21 PINS 1 & 2, COONECTED J21
SWAPPED J21 PINS 1 & 2, COONECTED J21
1 7/28/99
1 7/28/99
TO HEADPH GS TO DETACH FROM MAIN GND N00062
TO HEADPH GS TO DETACH FROM MAIN GND N00062
CONTROL ISSUE
CONTROL ISSUE
7/01/99
7/01/99
0 R990512-01
0 R990512-01
CONTROL ISSUE ECR00047
CONTROL ISSUE ECR00047
7/01/99 -
7/01/99 -
0
0
REV Date DESCRIPTION Ecr(s)/Ecn(s) Chgd By Appvd by Date
REV Date DESCRIPTION Ecr(s)/Ecn(s) Chgd By Appvd by Date
CAUTION:
CAUTION:
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
ST. LOUIS MUSIC, INC
ST. LOUIS MUSIC, INC
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
Signatures: Date:
Signatures: Date:
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
Drawn: OK 1/14/99
Drawn: OK 1/14/99
11880 Borman Drive, St. Louis, MO 63146
11880 Borman Drive, St. Louis, MO 63146
4 4
4 4
Checked: - - First Used On:
Checked: - - First Used On:
NOTES:
NOTES:
1) CAUTION: SHOCK HAZARD!! BA115a
1) CAUTION: SHOCK HAZARD!! BA115a
Released:
Released:
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
Drawing Title:
Drawing Title:
Drawing Size:
Drawing Size:
C
C
Tolerance:
Tolerance:
TOUCHING INTERNAL PARTS.
TOUCHING INTERNAL PARTS.
SCHEMATIC -BASS AMP
SCHEMATIC -BASS AMP
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. Drawing Type: Schematic
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. Drawing Type: Schematic
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL.
Drawing Number:
Drawing Number:
Class Code: NONE
Class Code: NONE
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE
AND 10 MEGOHM DIGITAL VOLTMETER. 07S103-XX
AND 10 MEGOHM DIGITAL VOLTMETER. 07S103-XX
Sheet 2 of 2
Sheet 2 of 2
A B C D E F
A B C D E F
S
D
G