Carvin valve master schematic

25V @ 8Ω = 25V NO TANK LOAD

220mV INPUT @1K=25V @ 8Ω

30mV @ 1K Hz = 28V @ 8Ω

60mV @ 3K = 25V @ 8Ω

12mV @ 1K = 25V @8Ω

SET P11 FOR 100mA

FOOTSWITCH FS22

DC FILIMENTS FOR

PULL - MID BOOST

IN 100W POSITION

ACROSS STANDBY

-3dB @550Hz

CHANNEL 2

CHANNEL 1

.047/600V

+3V RELAY

VOLUME 1

VOLUME 2

BIAS ADJ

30-77703

70-00927

PULL POT

CHANNEL

5A500K

15A25K

RETURN

47/63V

REVERB

SLEEVE

REVERB

1N40071N4007

1N4007

2200µF

1N4745

2200µF

REVERB

2200µF

JUMPER

250PF

560PF

B100K

DRIVE

.0022

330PF

H1B-3

B1MEG

.0022

H10-1

H10-2

H10-3

H2A-1

H2A-2

H2B-1

H2B-2

H1A-3

B100K

B1MEG

H3A-3

V1,V2

H4A-2

H4A-1

H4B-1

H4B-2

180PF

B250K

.0022

.0047

560PF

B100K

.0022

560PF

P1.S2

P1.S1

P6.S1

P6.S2

1 AGC

.001

82PF

V1.A

V2.A

V1.B

V2.B

400V

V3.B

220K

220Ω

.047

2.2M

220K

1.5K

150K

.001

.033

100K

220K

V4.B

V4.A

V3.A

400V

V5.B

V5.A

2.2M

.047

220K

560Ω

220K

560Ω

220K

.001

100K

.047

560Ω

4.7K

2.2K

350Ω

100K

.047

220K

4.7K

350Ω

500V

BASS

TREB

BASS

TREB

400V

.047

QC6B

QC5B

500V

.047

100K

QC6A

QC5A

1.5K

2.2M

100K

27PF

L1-A

L1-B

GNDA

220K

GNDB

280V

S3-A

220K

RING

.001

4.7K

560Ω

100K

1MEG

250V

185V

160V

185V

400V

.001

100K

100Ω

QC16

455V

445V

415V

385V

300V

190V

195V

.047 400V

100K100K

.001

220K

.01

10K

TIP

R33

R14

R17

R15

R18

R21

C14

C15

C16 C18

C24

C25

C26

R48

R16

R22

47K

R25

R35

R34

R37

R36

R38

R47

R45

R51

R49

R46R44

C33

C37

C36

C35

C41

R41

R42

R43

R50

R60

R61

R64

R65

C46

C48 C49

C50 C51

C43

C45

C44

R56

R57

R55

R67

47K

22K

10W

C30

MID

C17

S11

S10

C39

CH1

CH2

C34

P11

20K

2/2

C52

D12

D13 D14

D15 D16

C40

R31

C29

GND

R40

QC1

QC2

QC4

QC3

4,5

C23

C47

R54

C42

C31

R53 22K

R32

R52

R13

R12

C12

C13

N/U

C27

P10

C38

R39

R28

R27

D10

C19

C21

C20

R20R19

C22

R23 22K

C28

C11 N/U

C10

R10

R11

R24

15K

N/C

C54 N/U

N/U N/U

N/U

0Ω

10 10

C1 10

D8 D9

INPUT

1/2W

1 5

5 1

8 5 1

R6 to 1K R37 to 560Ω C37 to N/U R8 to 220K C6 to .0047 D21 to N/U R17 to 560Ω C8 to N/U D20 to N/U

40dB RISE FROM 1K TO 10K MIDS OFF - BASS TREBLE FULL

2. ALL CAPACITORS IN MICROFARADS, EXCEPT AS NOTED.

5. ADDED AS SECONDARY OPERATION ARE DENOTED .

3. ALL DIODES ARE TYPE 1N4003, EXCEPT AS NOTED.

4. ALL OPEN GROUNDS ARE A ,EXEPT AS NOTED.

1. ALL RESISTORS ARE 1/4W, EXCEPT AS NOTED.

9.5dB @ 10K 2.2K IN SERIES WITH .01 FEEDBACK

26dB RISE FROM 1K TO 10K ALL TONE FULL

CAN'T GET ANY SIGNEL FROM V5 TO V6-V9

R30 to 2.2K C33 to 180PF

(Note: less gain from both channels)

SQUARE WAVE OSCILLATOR AT SPKR OUT

P3, P8, P14, P15 from A25K to A15K

NOTES UNLESS OTHERWISE SPECIFIED.

BIAS SETS OK FOR POWER TUBES BUT

NO AMP FEEDBACK - EXTREME GAIN

SELECT SWITCH DOES NOT WORK-

R24 to 15K C16 to 10µF

Assembly Revision History

DRIVE STARTS TO CLIP

5-23-95 Rev (C) PCB

8-22-95 Rev (C) PCB

ALL TUBE GUITAR AMP

NO VOLTAGE ON RELAY

OUTPUT TRANSFORMER

PIN 1&2 REVERSED

CH1 VOL 10 - C7

INSPECTION FOR

PIN 1 REVERSED

SOLDER BRIDGE SOLDER BRIDGE

SOLDER BRIDGE

GAIN / OUTPUT

CH1 – VOL @ 2

VALVE MASTER

3A SLOW BLOW

REVERB DRIVE

CH1 PRESENCE

-3dB @ 300Hz

8dB @ 10K Hz

4-PW. TUBES

H3B– 1 TO 4

2-PW. TUBES

REVERB REC. 25VAC 8Ω

PCB Rev (C)

FOOTSWITCH

12AX7 TUBE

CLOSED=CH2

5mm x 20mm

H3A–1 TO 4

PRESENCE 1PRESENCE 2

25VAC 8Ω

28 VAC 8Ω

IMPEDANCE

FILAMENTS

EL34 TUBE

C. McEUEN

+3V RELAY

9dB @ 10K

STAND BY

30-77701

LINE OUT

30-77707

30-77703

30-77705

30-77708

15-02116

30-77701

OPEN=CH1

V3,V4,V5

1/2 POW.

INTERNAL

80-77701

FUNCTION

ALL FULL

15-10600

30-77706

(I to J)

CABINET

CHANNEL

350 VAC

PROBLEM

H2B–1&2

H2A–1&2

H2B–1&2

SPEAKER

14DEC94

OUTPUT

VOICED

SWITCH

(240V)

4.6VAC

3.2VAC

OUTPUT

EL34 /

180PF

LEVEL

POWER

V6-V9

H1B-2

H8B-1

H8B-2

H1B-1

.0047

QC34BQC34A

H1A-2

H8A-1 H8A-2

H1A-1

H7A-1 H7A-2

H7B-1

H7B-2

H3B-4

H3A-1 H3B-1

H3A-4

H3B-3

H3A-2 H3B-2

QC13B

INPUT FREQ.

QC13A

H9B-1

H9B-2

H9A-1

H9A-2

SEND

350Ω

SPK1

SPK2

QC31

QC33

QC35

QC36

1/2W

H5-1

H5-2

LAMP

470K

QC10 QC11

15A25K

1AGC

H6-1 H6-2

10SB

QC32

5.9A

L2-B

FUSE

.047

600V

1AGC

QC14

Y/RD

TONE

.3mV

100Ω

Y/RD

L2-A

2.2K

15A25K

.022

3.5V

FULL

5881

30mV

60mV

18mV

.01

R72

C73

C70

R66

R73

R62

R70

R63

C72

10K

16Ω ORG

YEL

GRN

4/5

16Ω

RED

PL1

OFF

RED

BRN

BLU

R74 22K

QC8

QC7

10Ω

ORG YEL

GRN

P14

1/2

R29

D20

D21

BLK

B/W

ORG

O/W

QC9

GRN

BLK BLK

TIP

GND

C53

RED

CH1

CH2 CH2

R68

R69

RED

BLK

B/W

ORG

O/W

GRN

RED

22K

R26

C32

R30

P15

R71 10K

C71

BRN

N/U

(J)

(K)

(L)

8Ω 4Ω

B2B3

1K 1K

R3, R7, R15, R18, R38, R42 from 220K, 1% to10-7-95 Rev (C) PCB 1/2W, 220K

7Oct95

12340 WORLD TRADE DR. SAN DIEGO, CA 92128 (619) 487-1600 FAX 487-6629

REVISED BY:

APPROVED:

DRAWN BY:

DATE:

ASSY.

DATE:

ARVIN

REV:

NO:

PCB

NO: