Crate gtx 212 sch Schematic

DCBA

+16V

DISTORTION CHANNEL

TP4

7

7

R21

47K

R28

47K

Q6

C

R73

100K

C50

.001

100V

C82

100V

6

IC2:B

5

TLO-72

D6

1N914

2N5210

R113

.01

G

1M

TP7

B

6

IC4:B

5

TLO-72

C53

56 pF

200V

R75

47K

R26

22K

1N914

C13

.22

R41

2.2K

R51

1M

R43

22K

R45

4.7K

3

2

IC3:A

1

TLO-72

C31

.1

50V

R44

1.5K

TP5

C27

.015

C30

HIGH

LOW

MID

CW

P5

10K L

CW

P4

10K A

CW

P13

500 A

.0047

100V

R38

D10

R30

10K

C20

1

1K

C25

.47

C23

1

1N914

Q8

2N5210

D9

R34

47K

JOW2

.001

100V

C68

C38

.22

Q31

2N5087

R77

47K

R89

47K

2

3

IC4:A

TLO-72

TP8

1

R99

2.2K

T

R

R78

22K

R56

C60

.0022

100V

D20

R68

1M

+16V

+16V

C42

2.2

1N914

DS

Q24

J175

G

R58

10K

D

47K

D39

1N754ARL

R118

10K

R11

2.2K

1

R12

10K

A

G

C32

2.2

OVERDRIVE GAIN

C6

10

35V

R18

1.5K

Q4

S

G

D

J112

OVERDRIVE LEVEL

CW

P6

10K A

R47

4.7K

TP6

LEVEL

C34

2.2

P1

10K L

D4

1N746ARL

3.3V

R72

12K

100K RA

CW

P7

CW

.0033
100V

2

IC2:A

3

C71

1N746ARL

C52

.047

100V

R76

10K

R14

4.7K

TLO-72

D3

3.3V

SOLO LEVEL

R59

47K

1

R109

4.7K

Q25

J175

R10

10K

R64

47K

S

D

S

D

B

TP3

SOLO GAIN

CW

D

G

S

Q21

G

J112

J175

G

P2

10K L

P12

10K A

Q3

G

R16

4.7K

C2

C15

S

2.2

Q2

J175

D

R17

4.7K

CW

C2

R112

10K

Q29

J175

D

S

C49

1

A

D1

J1

INPUT

C3

.0068
100V

R5

15K

D

1

C8

.047

100V

.22

1N914

D2

1N914

-16V

C9

+40V

R4

680K

R6

6.8K

C1

.47

3

2

IC1:A

TP1

1

TLO-72

R7

22K

GND-CH

TP

CONDITION "A" CONDITION "B" CONDITION "C"

C56

.0015

100V

HIGH

LOW

MID

C5

.1

CW

P10

10K L

CW

P8

10K A

CW

P9

500 A

1

2

3

4

2

5

6

7

8

9 *

.48Vpp

18Vpp

7.2Vpp

5Vpp

9.8Vpp

3.3Vpp

9.8Vpp

4.8Vpp

30Vpp

.48Vpp .48Vpp

5.2Vpp

6.2Vpp

5.2Vpp

.18Vpp

5.2Vpp

8Vpp

3.2Vpp 3.6Vpp

5Vpp 3Vpp

2.5Vpp

1.5Vpp

30Vpp30Vpp

I B

R80

6.8K

C46

2.2

C47

1

R1

1.5K

.22

TP2

5

7

6

IC1:B

C2

.0033
100V

TLO-72

C7

R2

22K

R3

22K

R9

680

C4

C10

.015

Q1

D

R8

1M

S

J175

CLEAN CHANNEL

5

7

IC3:B

6

TLO-72

R42

150K

C29

56 pF

200V

R46

1K

R57

15K

C18

.0056

100V

D

S

J175

FE

C24

1M

CW

D16

R48

27K

2.2

C17

.22

B2

2_PWRAMP

C33

.001
100V

1

2

R22

4.7K

R29

4.7K

C19

.01

P3

100V

10K L

SHAPE

Q16

J175

10K

G

C81

100V

R106

1N914

.01

D

S

Q7

G

R52

5

R82

REPLACE WITH

0

JUMPERS ON
DSP VERSIONS

6

3

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.

4

NOTES:

1) CAUTION: SHO CK HA ZARD!!
THIS UNIT CONT A INS HAZARDOUS VOLTA GE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTE RNA L P A RTS.

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 VOLTMETE R.

IC5:B

TLO-72

R90

0

J2

R84

100K

7

R115

47K

R116

47K

R91

22K

3

JOW1

R94

47K

R92

10K

J10

E'

J112

D

G

E

Q26

S

3

IC5:A

2

TLO-72

R88

REPLACE WITH
JUMPER ON
DSP VERSIONS

0

1

J11

J8

D34

1N4002TR

100V PIV

D33

1N4002TR

100V PIV

D32

1N4002TR

100V PIV

D31

1N4002TR

100V PIV

C64

1000
16V

R107

1/2W

C63

.1
100V

10

1

2

3

4

5

I

6

6/26/03

1

11/27/02

0

REV Date DESCRIPTION

Drawn:

Checked:

Released:

Plot Date:
Plot Time:

Tolerance:

CHG'D C36 FROM .1 TO .O1 UF .

CONTROL ISSUE

Signatures:

Thu Jun 26, 2003

N01177

Ecr(s)/Ecn(s)

THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO

ST. LOUIS MUSIC, INC

REM

Chgd By Appvd by

Date:

of

8/30/02

C

NONE

2

First Used On:

11880 Borman Drive, St. Louis, MO 63146

Drawing Title:

PWA - DSP GUITAR AMP

Drawing Number:

REM

Drawing Size:

Drawing Type: Schematic

Class Code:

Sheet

1

Date

4

GTX212d

07S195-XX

GTX212

DCBA

E

F

©2007 LOUD Technologies Inc. All rights re served PWA DSP Guitar Amplifi er PCB Schematics PAGE 1

DCBA

FE

TEST POINT CONDITIONS FOR POWER AMP:

1.1Vpp

1

SOLO

OVERDRIVE

CLEAN

+16V

R117

D'

4.7K

R79

1K

Q17

MPS-A55

I

I

R50

2.2K

B'

E'

-16V

2

S1

SOLO/OVERDRIVE

I

I

C C

O O

J21

1

R

2

T

3

C65

4

5

3

6

7

8

9

10

11

1

C75

1

S+
S-

CLEAN/OVERDRIVE

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.

4

NOTES:

1) CAUTION: SHO CK HA ZARD!!
THIS UNIT CONT A INS HAZARDOUS VOLTA GE. DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTE RNA L P A RTS.

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.

D27

1N914

D24

1N914

R55

33K

-16V

S2

CC

OO

1kHz SINE WAVE INPUT INTO INSERT TIP, 4 OHM LOAD

D19

.1

R67

10K

DC

.048V

1.4V

-.67V

.048V

34V

-34V

0V OR +10V+10V

+16V

D36

1N914

+16V

R98

2.2K

+10V0V

100V

CB

0V

R54

1M

C37

.01

+16V

R32

4.7K

1K

R108

R25

10K

R103

D37

1N914

B2

B

33K

4

3

2

1

D18

GRN

CLEAN

R71

1M

+16V

J4

R74

1.5K

ACTP

.65Vpp

10
11

35Vpp
35Vpp

12

32Vpp

13

1.8Vpp RIPPLE

14

1.8Vpp RIPPLE

15

SWITCHING LOGIC

A

-10V

-10V

0V

+16V

R86

2.2K

A

C41

.01
100V

D22

1N914

R81

470

D25

1N746ARL

3.3V

MPS-A13

+10V

1N914

C48

Q22

2_PWRAMP

Q10

S

D

J112

B'

R110

3.3K

R53

100K

R102

33K

C74

.047

100V

G

R15

47K

-16V-16V

-40V

D'

A

R105

1M

Q27

MPS-A55

Q14

2N5087

C36

.01

Q28

MPS-A13

R66

47

+16V

C51

220

OVERDRIVE
D7

YEL

R19

2.2K

Q13

MPS-A13

E

C73

.01
100V

R69

47

R70

22K

R49

680

NEUTRAL

C

D23

1N914

+40V

TP10

Q20

2N5087

C35

220 pF

100V

R62

1/2W

R100

10

C45

220

Q19

MJE-340

LINE

J25

J24

J29

FOR DSP
VERSIONS
SEE BOM

R27

2.2K

D8

RED

SOLO

+16V

CONNECT APPROPIATE
XFMR LEAD TO J17 FOR
DESIRED LINE VOLTAGE.

"PARK" THE THREE
UNUSED LEADS ON
ISOLATED TABS

J26, J27, & J28.

330

R101

100

JOW6

ICL1

3A

C40

220 pF

100V

+40V

R65

27K

C57

10

35V

.001

Q12

MPS-A06

AP1

500

REPLACE WITH

0.2 OHM, 5W ON

R104

60W VERSIONS

.1

ONLY

5W

J20

J19

OPT1

OPT2

OPT3

BROWN

GRAY/WHT

BLK

BLUE

WHITE

C11

100V

T1

1 3

2

R63

1/2W

CT

J17

J17

J19

CW

240V

230V

120V

100V

R13

1.5K

R40

330

EXPORT WIRING

C69

.1
100V

C66

.1

100V

R96

220

5W

R95

220

5W

C26

47

TP13

35V

TO SPEAKER

S+

S-

C59

.047
100V

R97

10
1/2W

D29
1N5353B

16V

D28

1N5353B
16V

C14

100
35V

C12

100

35V

J15

J5

+

-

4 W

1

2

+16V

-16V

C44

.047
100V

C28

.047

100V

C16

.047
100V

3

TP11

+40V

Q5

R20

4.7

TIP-147

Q23

TIP-142

MR-752

200V PIV

R23

.47

5W

R85

.47

5W

-40V

ON 120W
VERSIONS
ONLY

+40V

C67

4700

C70

4700

-40V

D5

TP14

TP15

200V PIV

220

-40V

.1

100V

D12

MR-752

D13

1N914

D21

1N914

TIP-147

D35

+40V

Q15

C43

220 pF
100V

C79

.1

100V

GBPC602

Q11

TIP-142

R33

R83

-40V

R37

4.7

.47

5W

.47
5W

+40V

R31

3.3K

1/2W

C22

220 pF
100V

C21

1

2N5088

C39

1

R36

R39

470

Q9

R60

4702N5087

R61

220

R24

1.5K

1/2W

D14

1N914

Q18

D17

220

1N914

TP12

C78

J23

J13

4

5

J22

J27

J26

J28

C77

100V

100V

.1

C76

.1

06a195-01/02 120 WATT/ 65 WATT

CHG'D C36 FROM .1 TO .O1 UF .

CONTROL ISSUE

Signatures:

Thu Jun 26, 2003

N01177

Ecr(s)/Ecn(s)

THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO

ST. LOUIS MUSIC, INC

REM

Chgd By Appvd by

Date:

of

8/30/02

C

NONE

2

First Used On:

11880 Borman Drive, St. Louis, MO 63146

Drawing Title:

PWA - DSP GUITAR AMP

Drawing Number:

REM

{Checked By}

Drawing Size:

Drawing Type: Schematic

Class Code:

Sheet

2

Date

4

GTX212d

07S195-XX

J13

J22

J23

6/26/03

1

11/27/02

0

REV Date DESCRIPTION

Drawn:

Checked:

Released:

Plot Date:

Plot Time:

Tolerance:

GTX212

DCBA

E

F

©2007 LOUD Technologies Inc. All rights re served PWA DSP Guitar Amplifi er PCB Schematics PAGE 2