Crate v32 schematic
ABC D
NOTE: TEST POINT CONDITIONS
LINE: 120 Vrms. SPEAKER LOAD: 8 OHM RESISTANCE
REVERB SEND LOAD: 150 OHM RESISTANCE
INPUT : 28mVrms @ 500HZ.
VOLTAGES: ALL DC VOLTAGES MEASURED WITH
" NO SIGNAL INPUT".
SETTINGS: GAIN & EQ @ '5' , REVERB @ '0',
LEVELS @ '10',PRESENCE & BOOST = 'OFF'
1
28mV
RMS
INPUT
J10
TIP
TIP_SW
SLEEVE
ON INPUT JACK BOARD BREAK-OFF PC BOARD
C9
470pF
2
3
4
500V
CW
HI
250K L
P2
S4
PRESENCE
I
C11
.022
400V
1M A
C54
.047
100V
I
C
C
O
O
CW
LOW
P4
CW
MID
20K A
P3
J112
D
G
S
Q1
C41
.0033
100V
R13
33.2K
1/2W
1%
C10
.022
400V
R31
220K
C53
.001
R45
68.1K
1KV
1/2W
1%
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.
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.
1M
1/2W
R1
1%
R41
475K
1/2W
1%
A
C55
470pF
500V
R80
47.5K
1/2W
CW
1%
W1
20 G RED
W2
20 G BLK
330mV
RMS
5.5Vp-p
F
LEVEL
250K A
P5
C
310mV
RMS
1.6Vp-p
VTL-5C6
OC3
VTL-5C1
OC4
C22
.01
100V
R27
100K
1.5V
RMS
185VDC
ABC DEF
R74
220
1/2W
J1:A
R75
220
1/2W
R28
4.7
9-PIN
2.74K
1/2W
1%
2 4
R3
3
2
C27
100
35V
-12.9V
R2
100K
1/2W
1%
1
93
1.6VDC
-12.9V
IC1:A
NE5532
-12.9V
F2NC
50V
1
R29
10K
2.2
C2
.047
400V
C1
C48
C3
.001
470pF
400V
R5
475K
1/2W
500V
R4
475K
1/2W
1%
1%
C37
R38
1M
50 pF
1/2W
1%
500V
R48
2.2M
B C
OC1
VTL-5C3
C52
120pF
1KV
CW
VOLUME
CLEAN CHANNEL
R76
221K
1/2W
1%
TO HDR SHT 2
PRE_SEND
IC2:A
3
1
2
TLO-72
5
6
R79
10
R78
10
Reverb Send
C47
.1
100V
NOTE: NOT SPLIT TEST POINT BUBBLE = CLEAN & DIRTY
NOTE: SPLIT TEST POINT BUBBLE
CLEAN=TOP RMS VOLTS ( NO WAVE FORM )
DIRTY=BOTTOM p-p VOLTS ( SEE WAVEFORM )
TO HDR SHT 2
SEND
ON JACK BOARD BREAK-OFF PC BOARD
R77
1.5K
IC1:B
7
NE5532
150 OHM
RESISTANCE
J27
LOAD
REVERB
PAN
J19
SEND
-14.7V
J12
Reverb Return
J13J11
DC VOLTS
1M A
P7
J30
RETURN
D2
1N914
75V PIV
CW
OC5
VTL-5C3
R30
1K
2.2K
C28
DIRTY
CHANNEL
GAIN
250K A
C4
10
450V
R32
.22
50V
P1
FE
+250VDC
+260VDC+260VDC
D1
1N914
75V PIV
+14.7V
5
6
TLO-72
R33
33K
C29
.001
100V
R7
221K
1/2W
1%
J1:B
9-PIN
6
7 5
1.3VDC
R6
2.74K
1/2W
1%
R8
10K
2W
TO HDR SHT 2
RETURN
IC2:B
7
RefDes
IC1 & IC2
C49
.001
400V
98
F2NC
C8
450V
C46
.01
100V
C31
.1
50V
CW
C6
.022
400V
15Vp-p
140VDC
C5
2.2
50V
10
7.65V
RMS
62.5Vp-p
215VDC
R10
1M
1/2W
1%
R18
22.1K
1/2W
1%
R16
1M
1/2W
1%
C21
.1
250V
REVERB
10K A
P6
Power Table
+14.7V -14.7V
8 4
9-PIN
R12
1/2W
1%
R55
221K
1/2W
1%
+275VDC
J3:A
1K
J3:B
9-PIN
C20
.1
250V
R62
2 4
7 5
10K
48VDC
E
C36
.022
400V
221K
1/2W
1%
R43
100K
1/2W
1%
9-PIN
EL84
J17
R59
100
2W
9-PIN
EL84
J4
R24
100
2W
J5
9-PIN
EL84
R25
100
2W
J16
9-PIN
EL84
R58
100
2W
ST. LOUIS MUSIC, INC
Date:
12/10/03
+260VDC
R42
100K
1/2W
1%
R44
+320VDC
R9
470
5W
C16
100
450V
J2:B
9-PIN
J6
C38
50V
J7
7 5
2.2
J8
Ecr(s)/Ecn(s) Chgd By Date
1901 Congressional, St. Louis, MO 63146
First Used On:
R34
10K
2W
C7
10
450V
R37
475K
1/2W
1%
OC2
VTL-5C1
C13
.022
400V
R15
100K
1/2W
1%
C30
50 pF
500V
C14
.022
400V
8.3
Vrms
210VDC
E
D
R11
82.5K
1/2W
1%
1
F2
93
F1
98
F1
F2
6
65Vp-p
A
R14
10K
2W
C39
50 pF
500V
12/10/03
R17
221K
1/2W
1%
R19
221K
1/2W
1%
R35
1M
1/2W
1%
R40
100K
1/2W
1%
J2:A
9-PIN
2 4
R39
10K
1/2W
1%
R60
10K
1/2W
1%
R21
10K
1/2W
1%
C15
220
63V
R22
10W
R23
10K
1/2W
1%
R57
10K
1/2W
1%
INITIAL ISSUE
60
REV Date
590mV
RMS
42Vp-p
230VDC
1
93
F1NOT2
2.3VDC
+315VDC
7
9
2
3
4 5
F1
F2
7
9
2
3
4 5
F1
F2
+10VDC
F1 F2
4 5
3
2
9
7
F2F1
4 5
3
2
9
7
DESCRIPTION
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Signatures:
Drawn:
Checked:
WFB
5.7V
RMS
60Vp-p
195VDC
6
+12.9V
98
F1NOT2
1.6VDC
R20
2.74K
1/2W
1%
OUTPUT
TRANSFORMER
P/N 94-754-01
F
Appvd by
15.5V
RMS
43.5Vp-p
J33
J34
PIGTAIL
TO SPKR
8 OHMS
1
2
ON JACK BOARD BREAK-OFF PC BOARD
J32
SPEAKER
3
4
Released:
Plot Date:
Plot Time:
Tolerance:
Thu Jan 29, 2004
Drawing Size:
Drawing Type: Schematic
Class Code:
Sheet 1 of
C
NONE
2
Drawing Title:
PWA - TUBE GUITAR AMP
Drawing Number:
07S677
AB
1
S2
BOOST SWITCH
2
J31
FOOTSWITCH
3
I
C
O
RING
RING_SW
TIP_SW
SLVE_SW
SLEEVE
I
C
O
TIP
SWITCH GROUND
ON JACK BOARD
BREAK-OFF PC BOARD
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.
NOTES:
4
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.
A
J35
11
10
9
8
7
6
5
4
3
2
1
J14
LINE
LINE
AC
GND
LINE
CORD
NEUT
J15
NEUT
S3
CHANNEL SW
I
I
C
C
O
O
11
10
9
8
7
6
5
4
3
2
1
PREAMP GROUND
C17
.0033
250V
J36
1N746ARL
FC1
FUSE CLIP
PRE_SEND
RETURN
SEND
D15
3.3V
F1
100/120V
1-1/2 A SB
230/240V
1.6A SB CERAMIC
C18
.0033
250V
FC2
FUSE CLIP
+16.5V
R73
1.5K
D11
1N746ARL
3.3V
CHAN_SEL
+16.5V
R69
1.5K
D14
1N914
75V PIV
B
J18
D12
1N914
75V PIV
D16
1N914
75V PIV
R68
15K
POWER
POWER
SWITCH
SWITCH
D13
1N914
75V PIV
-12.9V
R63
15K
C50
35V
Q3
2N5087
C51
10
35V
4.7K
10
-12.9V
R66
J28
J20
J21
J22
BOOST
R64
4.7K
Q2
2N5087
240VAC
230VAC
115VAC
100VAC
R65
1M
ON = -11.5VDC
OFF = 0VDC
CH SELECT
R70
R67
100K
Q4
2N5087
CLEAN = 0VDC
D
DIRTY = -11.8VDC
33K
A
J23
1
2
3
4
5
POWER XMFR
B
C
R49
10
2W
+16.5V
R46
C24
2200
25V
150
C23
2200
25V
R47
150
-16.5V
R50
10
2W
C32
.001
1KV
D3
1N4007
1KV PIV
D5
1N4007
1KV PIV
1N4007
1KV PIV
D6
D4
1N4007
1KV PIV
C35
.001
1KV
INITIAL ISSUE
12/10/03
A
REV
Date
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC
Signatures:
Drawn:
Checked:
Released:
Thu Jan 29, 2004
Plot Date:
12:07:07
Plot Time:
Tolerance:
J29
J24
J25
J26
CLEAN = -12.9VDC
DIRTY = -2.7VDC
F2
F1
3
2
1
3
2
1
C34
.001
1KV
POWER
J9
D7
1N4002
100V PIV
1N4002
100V PIV
100V PIV
1N4002
D10
1N4002
100V PIV
F2
6.3VAC
F1
D8
D9
C D
D
R51
10
2W
+14.7V
C25
47
16V
C26
47
16V
-14.7V
R52
10
2W
STANDBY
SWITCH
J39
C33
.001
1KV
DESCRIPTION Chgd By
Drawing Size:
Drawing Type: Schematic
Class Code:
Sheet of
2
R26
150K
2W
C19
100
450V
Ecr(s)/Ecn(s) Appvd by
Date:
12/10/03WFB
First Used On:
Drawing Title:
B
PWA - TUBE GUITAR AMP
Drawing Number:
NONE
2
1901 Congressional, St. Louis, MO 63146
J40
C44
1000
16V
C43
1000
16V
-12.9V
+12.9V
1
2
+320VDC
3
Date
4
07S677
AB
J6
{Label}
C9
R24
R17
R22
R42
J2
R20
R43
C38
R44
C36
S2
Q1
S
G D
R45
P3
MID
FOOTSWITCH
1
J31
J17
J35
1
SEND
J19
R77
RETURN
J30
R60
R2
EL84
C7
C49
C43
R7
2
J1
SPEAKER
J32
INPUT
J10
3
C1
J33
J34
W1
W2
R1
P7
VOLUME
{Label}
W1
W2
R3
C2
CHANNEL SW
C48
S3
R5
R59
J4
R21
R34
C6
R55
OC2
R6
C5
OC5
OC1
C3
R4
R38
R48
C37
GAIN
P1
C52
EL84
C4
C44
R40
R39
R37
R35
P2
HI
J8
R25
C15
R23
C39C30
R19
R10
R12
C46
R13
C41
C53
C54
C10
C11
R31
J5
EL84
R8
R11
C13
J3
{Label}
R18
R80
C55
R41
P4
LOW
R15
C14
R16
S4
PRESENCE
R14
J11
C47
C21
J27
C20
R76
P5
LEVEL
C
F1
FC1
R9
J16
EL84
R57
R58
C8
1
J12
IC1
R29
R78
R79
C29
R30
IC2
R32
C31
J13
C22
OC4
OC3
R28
R27
C28
R62
P6
REVERB
J7
1
J24
J40
J36
C25
R33
D1
R46
C26
R52
D2
C27
R49
R74
R75
J14
C16
C33
D4
J39
R47
R50
J9
R51
R65
R64
J18
C17
J15
C18
C35
D6
J26
D3
D12
D13
R63
D11
D15
D14
D16
R68
Q2
R66
R70
D
FC2
J23
J21
J22 J20 J28
C19
JW12
JW11
C32
R26
C34
D5
R73
R69
Q3
C50
R67
J25
C23
C51
C24
J29
1
D10
D9
Q4
D8
D7
1
2
3
FOR ASSEMBLY P/N:
USE SCHEMATIC #
4
NOTES:
1. APPLY RTV SILICONE SEALANT PER SLM DOCUMENT
NUMBER 00A005-00
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.
07-677-01
07S677
A
BOOST SWITCH
INITIAL ISSUE
12/28/03
A
Date
REV
Drawn:
Checked:
Released:
Thu Jan 29, 2004
Plot Date:
Plot Time:
Tolerance:
B
C D
Signatures:
12:00:34
DESCRIPTION
THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO
Date:
WFB
12/10/03
Drawing Size:
Drawing Type:
ASSEMBLY
Class Code:
Sheet of
1
Ecr(s)/Ecn(s) Appvd by
ST. LOUIS MUSIC, INC
1901 Congressional, St. Louis, MO 63146
First Used On:
Drawing Title:
B
NONE
Drawing Number:
1
Chgd By
PWA - GUITAR AMP
Date
4
07-677
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