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A ON MAIN BD
R12A
100K
B
+14V D25A
1N914
3 2
C
D
R60A
100K
E
J
F
TO SHEET 2
+15V
IC1A:A
1
FROM SHEET 2
R32A
100K
B Q7A
+15V
D5A
1N914
TLO-72
C16A
.0047 100V
R41A
100K
R33A
100K
C17A C
.1 100V
R35A
68K
2N5210
A R31A
10K
1
J1A INPUT
RING RING_SW TIP_SW TIP SLEEVE
TO SHEET 2
R8A
100K
Q6A -14V
G D S
TP1
R40A C19A
220 pF 400V 330K
1
TO SHEET 2
R46A
100K
J175
-15V
W2A WHT WIRE W3A 20 G RED W1A BLUE WIRE
R7A
47.5K 1%
IC3A:B
CW
SW1A:A
TO TC TI
Q5A
G D
J3A
C3A
1 2
6
R34A R2A
221K 1/2W 1% .1 400V 100K 1/2W 1%
TREBLE
P4A
250K A
K
7
5
NE5532
S
TO SHEET 2
-15 db SW1A:B
TO TC
C59A
.1 50V
J175
FROM J14A
R1A
12 1/2W
R59A
220K
+14V
+15V R4A
12 1/2W
R36A
330K
D4A
1N914
5 6
C20A
.047 400V
CW
D15A
TI
BASS
P2A
250K A
CW
P1A
IC1A:B
7
TP2
1N914
GAIN
1M LOG
C7A
1 50V
-15 db
R9A
10K 1%
+15V R20A +15V R47A R37A
4.7K
J2A
D26A
1N914
R11A
1M
TLO-72 C10A
100 pF
1 2 3
D10A
1N914
OPT2A
33K
4.7K
CW
MID
P3A
50K A
-14V +15V R25A
2.7K
O 7
R19A 200V R18A
68K 47K
R5A
TP4
Q2A
D S
22K
2
TO J12A
1M 1/2W 1%
R6A
G
D9A
1N914
R30A
100K
Q4A
SEVEN
C24A
.0022 100V
SW2A:C
C 8 I 9
C9A
.047 100V
TO SHEET 2
100K
2
R14A
4.7K
J175
C4A
.01 100V
2N5210
SW1A:C
O
10
11
R137A +15V
2.2M
RED
12
D1A C5A
I
R29A C12A
1 1M
C
O
C
I
C14A
470 pF 100V
PEAK SW2A:D Q3A
.1
D12A SW1A:D
O C
R28A
220K
R13A R15A
MPS-A13 1.5K 4.7K
Q1A
2N5210
1N914
C11A
1
R24A
100K
I
SW2A:A
TO TC TI
C13A
.015
C8A
.022
1
2
3
4
5
6
R27A
100K
FROM SHEET 2
L D11A
TO
TC
TI
R48A
47K
SW2A:B
C22A
1N914 .022
FROM SHEET 3
MFS
3
COMPRESSOR SW3A:A
TO 1 TC 2 TI 3
-15V OC1A R64A
47K
3
R50A
330K
R45A
220
TP5
R51A
47K
10 9
R22A
470K VTL-5C3
5 D S 6
IC4A:C
8
CLFXSND TLO-74
R38A
47K
4 5 6 TO TC TI
R49A
3
Q8A R42A
G
IC2A:B
7
3 2
IC2A:A
1
D8A
1N914
R21A
22K
IC3A:A
1
TP3
1M
TO SHEET 2
SW3A:B COMPRESSOR
C18A
.1
100K J112
TLO-72
D6A
1N914
R39A -15V
220K
TLO-72 R17A
470K
2
OPT1A
1N914
NE5532 R44A
22K
+15V C44A
.047 100V
R26A
100K
C15A
1
+15V C23A
.047 100V
R43A
22K
D7A
1N914
-15V
-15V
R23A
R16A
470K
1 0
REV
5/23/03 8/30/01 Date
NOISE ISSUES, BOARD TO -02 CONTROL ISSUE
N01232
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.
470K
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
FROM J2A J12A
1 1 2 3
J11A
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
R133A
47.5K 1%
R131A
221K 1/2W 1%
1 2 4 3 9
2
Signatures:
Drawn: Checked: Released:
Plot Date: Fri Jun 13, 2003 TO J3A Plot Time:
Date:
WFB 6/4/01
11880 Borman Drive, St. Louis, MO 63146
J13A:A
4
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.
TO J20B (ON BASS PRE-AMP "B") J14A
First Used On:
4
ON TUBE BREAK-OFF BD
OPT4A
22 35V
J13A:B
6 7 8 5 9
1 2
Drawing Size:
C
NONE 4
Drawing Title:
R132A
3.32K 1/2W 1%
Drawing Type: Schematic Class Code: Sheet 1 of
PWA-BASS PREAMP A
Drawing Number:
Tolerance:
07S565 F
A
B
C
D
E
A ON MAIN BD
CLFXSND R56A 150K C26A .015 R54A 2.2K
6 7 5
B
D17A
1N746ARL 3.3V
C
+15V R74A 10K Q15A R61A 10K 2N5210
2 1 Q Q
D
IC5A:B
SET DATA CLK RESET Q Q 8 9 11 10
E
+15V
F
TP14
R134A R84A
47K
IC5A:A
SET DATA CLK RESET 6 5 3 4
R57A 3.3K C27A
1 50V
R58A 10K
2
IC4A:A
1 3
OCTAVE SECTION
R80A 22K Q17A R82A
G D 10 9
C31A
.01 100V
12 13
EIGHT
100K
Q16A:A
MPQ2222A
R79A OCTFS
1K
FROM SHEET 1
CD4013
1
TLO-74 R63A 100K
IC6A:C
8
CD4013
R89A 10K C34A
R87A 10K C38A R86A .22
C36A .22 IC6A:D
12 14 13
FROM SHEET 3
R70A
100K
10
C21A 2.2 J4A OD INPUT AUDIO GND GATE SENSE +15V -15V SWITCHING DIRTY GND OD FX SEND OD FX RET OD OUTPUT
IC4A:B R55A 220
IC7A:C
8
1
TLO-74
.22
Q11A
G
9
TLO-74
1 2 3 4 5 6 7 8 9 10
C35A .033
G
D
S
A
TO SHEET 1 (A & C)
TP15
100K J175
S
10K
C39A
1
R101A
47K J175
CW
TLO-74 P6A
50K L
TLO-74
C +15V -15V R72A
100K
Q12A
J175
12 13
IC4A:D
14
5 6
IC6A:B
7
D28A
1N914
D29A EIGHT
1N914
D S
R91A TLO-74
OCTAVE R97A
10K
BIAMP
TO SHEET 3
VOLUME
250K L
CW
TLO-74 C28A R62A
100K 2.2
R95A
10K
P7A:A MASTER
100K RA
TP6
R93A
10K
2
10K
CW
R92A
22K
IC6A:A R94A
1
IC7A:B
6 7 5
1 2 3 4 5
J6A OCTAVE OUT TIP OCTAVE OUT TIP SW CLEAN/MIX OUTPUT CLEAN OUTPUT OD OUTPUT AUDIO GND POST SELECT OUTPUT A POST SELECT OUTPUT B TO J14B (ON BASS PRE-AMP "B") OD FS GND SWITCH COMBINE FS RING COMBINE FS RING SWITCH CHANNEL FS TIP CHANNEL FS TIP SWITCH DIRTY GND DIRTY GND DIRTY GND
D30A SEVEN FROM SHEET 1
1N914
R65A
47K
P5A
C61A +15V R66A
47K 100 pF 200V
3
10K
TLO-74
TLO-74
TO J18B
(ON BASS PRE-AMP "B") R135A
100K
R73A
R81A
47K
C37A
2.2
R100A
10K
12 13
CW
IC7A:D
14
6
TP13
10K
C60A
.22 50V
2
R136A
100K
C32A R77A
100K .022 100V
P7A:B MASTER
100K RA
TLO-74 R99A
33K
+15V
PREOUT1 PREOUT2
7 8
TP10
R96A Q18A
S D G
Q16A:C
TO SHEET 3 J7A
2
22K
MPQ2222A
Q16A:D
MPQ2222A
R90A
10K
R88A C42A
.22
1 2 3 4
C41A
.22
10K
+15V R103A
470K
R78A
47K
J175
Q20A
MPS-A63
+15V R83A SW3A:C
5 6
R105A
1.8K
R106A
2.7K
7
9 8 7 I C O
D3A
D24A
3.3V 1N746ARL
1.5K
8
COMBINE
I 12 C 11 O 10
TO J15B (ON BASS PRE-AMP "B") SW4A:A +15V
TO TC TI
BI-LEVEL
+15V R69A
8.2K
C29A
.22
+15V R85A
1.5K
SW3A:D
FROM SHEET 1 J FROM SHEET 1 K
1 2 3
J5A TUNER OUTPUT PRE BAL OUTPUT CLEAN FX SEND CLEAN FX RETURN PRE AUDIO GND OD FX SEND OD FX RETURN CLEAN BAL OUTPUT OD BAL OUTPUT AUDIO GND BIAMP LOW FREQ OUTPUT BIAMP HIGH FREQ OUTPUT TO J17B (ON BASS PRE-AMP "B")
D21A D18A
1N914 1N914
R75A
220K 2N5210
Q14A
Q16A:B
MPQ2222A
R67A
10K
D20A 1N746ARL 3.3V
CHANNEL
TO TC TI
R68A
47K
TO SHEET 1
B
4 5 6
Q13A
3
TP12
SW4A:B R71A
470K 2N5210
7 8 9 10
3
TO SHEET 1
D23A L
1N914
FROM SHEET 3 LOW_F FROM SHEET 3 HIGH_F
11 12
D22A
1N914
C25A
22
+15V +15V D13A
1N914
1 0
REV
5/23/03 8/30/01 Date
NOISE ISSUES, BOARD TO -02 CONTROL ISSUE
N01232
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.
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
-22V
D14A
1N914
Q9A
G D S
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
Q10A D27A
1N914
G D
D19A
1N914
Signatures:
Drawn: WFB Checked: Released:
Plot Date: Fri Jun 13, 2003
Date:
6/4/01
11880 Borman Drive, St. Louis, MO 63146
R52A D16A
1N914 100K
4
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.
J112
S
J112
R115A
220K
-15V R53A
100K
First Used On:
4
-15V
Drawing Size:
C45A
10 35V
C
NONE 4
Drawing Title:
Plot Time:
Drawing Type: Schematic Class Code: Sheet 2 of
PWA-BASS PREAMP A
Drawing Number:
Tolerance:
07S565 F
A
B
C
D
E
A
B ON MAIN BD
C
D
+15V
E
TO SHEET 2 OCTFS MFS
1 2 3 4 5 6
7 8 9
F TO POWER AMP
J8A OCTAVE FS MUTE FS (RING) MUTE RING SWITCH N/U N/U AUDIO GROUND CHANNEL A OUT CHANNEL B OUT HF OUT LF OUT LIMITER DEFEAT LIMIT LED
+15V R116A
1K
+15V R3A
47
+14V C1A
+15V
R76A
470
+8V C33A
1 50V
#4
BAL OUT XFMR BREAKOFF T2A
#7 #8 #9
R113A
22K
TO SHEET 1
10 35V
1 2 3 4
J10A
R104A CLEAN BAL OUTPUT CLEAN BAL OUTPUT CLEAN XFMR INPUT CLEAN XFMR GND OD XFMR INPUT OD XFMR GND OD BAL OUTPUT OD BAL OUTPUT (ON BASS PRE-AMP "B") Q19A
MPS-A13 1.8K
C6A
1
.047
C55A
.047 100V
C30A
.047
+V C50A
1
C2A R10A
4:1
#2
10 35V
O
C
I
D2A
YEL
SW4A:C LIMIT DEFEAT C43A
.001 100V
O 10
D-GND -15V
R107A
100K
FROM SHEET 2
PREOUT1 PREOUT2
7 8 9 10
1
-15V
47
-14V T1A
#4 #7
5 6
SW4A:D
C 11 I 12
4:1 FROM PWR AMP -22V N/U DIRTY GND -15V +15V J9A
1 2 3 4 5
#2
7
#8
11 12
8
#9
-22V
TO J16B
R108A -15V
1K
+15V
TP16
R130A
2.2K
C58A
22 16V
R124A
3.57K
BALANCE P9A
10K L
CW
C40A
R125A
3.57K 1%
1%
2
BIAMP
.047 100V
TP17
C56A
.0033 100V
R102A
10K
IC7A:A
3 1 2
BI-AMP CROSSOVER C57A IC8A:B
.0033 100V
R128A
2.2K
2
FROM SHEET 2
C52A
22 16V
TLO-74 R120A R127A
10K
CW
R117A
47K
6
R129A
7
R121A
47K
2
1M
IC8A:A
1 3
R123A
1M
CW
R119A
47K
13
IC8A:D
14 12
5
1M
R122A
1M
CW
R118A
47K
9
IC8A:C
8
TLO-74 P8A:A
100K L
CW
TLO-74 P8A:B
100K L
P8A:C C54A
.0033 100V 100K L
TLO-74
10
P8A:D
100K L
TLO-74 C51A
.0033 100V
XOVER FREQ. R111A
3.57K 1%
XOVER FREQ. R109A
3.57K 1%
XOVER FREQ. R112A
3.57K 1%
XOVER FREQ. R110A
3.57K 1%
C53A
330 pF 100V
C47A
22 16V
C46A
22 16V
C49A
22 16V
C48A
22 16V
R126A
2.49K 1%
3
R98A
15.4K 1%
R114A
10K 1%
3
1 0
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. REV
5/23/03 8/30/01 Date
NOISE ISSUES, BOARD TO -02 CONTROL ISSUE
N01232
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
Signatures:
Drawn: WFB Checked: Released:
Plot Date: Fri Jun 13, 2003 Plot Time:
Date:
6/4/01
11880 Borman Drive, St. Louis, MO 63146
4
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.
First Used On:
4
Drawing Size:
C
NONE 4
Drawing Title:
Drawing Type: Schematic Class Code: Sheet 3 of
PWA-BASS PREAMP A
Drawing Number:
Tolerance:
07S565 F
A
B
C
D
E
A
B
TEST POINT CONDITIONS 1 2 3 4 5 1KHZ 35mVrms INPUT SIGNAL CLEAN GAIN, VOLUMES, MASTER @ "10" OVERDRIVE GAIN, TONES @ "5" BUTTONS "OUT" * TEST POINT ON 07566-XX SCHEMATIC
C
D
E
F
1
1
TEST POINTS
AC T.P. VOLTAGE 2.5V pp 0.4V pp 1.4V pp DC VOLTAGE 0V 0V 0V PAD BUTTON "IN" WAVEFORM CONDITIONS: T.P. AC VOLTAGE ---DC VOLTAGE 14V 0V 0V COMBINE BUTTON "IN" CHAN. SELECT BUTTON "IN" WAVEFORM CONDITIONS:
TP1
TP12
TP1 TP2 TP3 TP3 TP4
TP12 TP13 TP13
----1.3V pp
1.5V 1.8V 12V 0V 0V MUTE BUTTON "IN" COMPRESSOR BUTTON "IN"
---8V 0.4V pp
14V 0V 15V 4V 0V
2
TP14 TP14
2
OCTAVE FOOTSW. CLOSED
TP4 TP5 TP6 * * TP7 TP7
TP15 TP16 TP16 TP17
FREQ. CCW; BAL CW FREQ. CW; BAL CCW FREQ. CW; BAL CCW FREQ. CCW; BAL CW
5.8V pp .14V pp .7V pp 2.2V pp .3V pp
0V 0V 0V 0V 0V BOOST BUTTON "IN"
0V 0.4V pp 0V
0V 0V 0V
CLIPPED CLIPPED
TP17
* *
TP8 TP9 TP10
CLIPPED
3
2.4V pp -0V 14V
RefDes Value TLO-72 TLO-72 NE5532 TLO-74 CD4013 TLO-74 TLO-74 TLO-74 4 4 4 11 11 11 -14V 4 8 8 4 4 4 11 14 7
3
CLIPPED CHAN. SELECT BUTTON "IN" * TP11 TP11
Power Table +15V -15V +14V 8 +8V D-GND
*
--
0V
GATE BUTTON "IN" W/ NO SIGNAL
IC1A IC2A IC3A IC4A IC5A IC6A IC7A IC8A
1 0
REV
5/23/03 8/30/01 Date
NOISE ISSUES, BOARD TO -02 CONTROL ISSUE
N01232
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.
DESCRIPTION
Ecr(s)/Ecn(s)
Chgd By
Appvd by
Date
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
Signatures:
Drawn: WFB Checked: Released:
Plot Date: Fri Jun 13, 2003 Plot Time:
Date:
6/4/01
11880 Borman Drive, St. Louis, MO 63146
4
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.
First Used On:
4
Drawing Size:
C
NONE 4
Drawing Title:
Drawing Type: Schematic Class Code: Sheet 4 of
PWA-BASS PREAMP A
Drawing Number:
Tolerance:
07S565 F
A
B
C
D
E