Fender 3965 Twin Reverb 65 Twin Reverb Schematic - Page 1

8

I.

7

5

Jr

3

2

1

REVISIONS

ZONE

REV.

OESCRIPTION

ORTE

APPROVED

0

C

B

A

NORMAL

2

LI

12

•42mv

TP24

FOR

OUTPUT

TEST

ONLY.

1

7-

4

:-

11

I

VIA

1

212

11

4

1.5Kn

VIBRATO

Jlt

37mv

171

!kHz

SINE

1.6v

TP3

R1.5

4

.847

111A

BRIGHT

S4

O

flraa

reta

>

3134

R9

3.1v

RIO

12

1

V2A

13

cs

iMn

2

it-

IKV

17

S.

88K11

250Kts

3011

176

RI8

V

cr,

Cr

.047

16

1.5Kr.

+1.8

TP2

RIS

8

250Ka

10A

In

R20I

lifKra

10A

X

R22

108Kn

Y

CIO

120pF

I

IK913RIGHT

S5

6

5

R21

I

!An

304

47mv

TP4

C11

22

V

R11

n

C18

R34

.04'

1.F

228Kn

400V

6

V18

22:K

3

71

1

+2.0

I

TP5

4.2v

P15

C19

CI7

—24

.02

11-

IFF

488V

C12F

1KV

V29

8

23

20n

4811V

FtA

3.311.1

R33

100Ka

6

V48

R31;

223K

3907,18*

/m1

"47

67v

TP9

CP28

V3

12AT71

C13

IKV

2.0v

TP7

R24

IMn

7

3

8

5

2.2K

1W

)---

120VAC

60Hz

NOTES:

1.1

V1,2.4.5

ARE

I2AX7A.

2.)

RESISTORS

34W

CARBON

FILM

UNLESS

OTHERWISE

SPECIFIED.

3.)

6

-DIGIT

NUMBERS

ARE

FENDER

PART

NUMBERS.

VIBRATO

I

POWER

F2

BLK

Si

4A-SLO

CPI

1

XFI

GRN

1

1

1

6.)

9.)

S18

WHT

14

f

:

pes

T1

BLU

I

GAN

4ILK

037099

RED

+7.8

TP8

1.1v

FOOTSWITCH

ASSEMBLY

P/N

037211

REVERE

L

V

6

ER8

PIO

<

C

P30

CP

.

31

1.9sv

TP1

18

110mv

TP13

R28

100K.n.

W

C16

.8033pF

4

V

1

V4A

IN

REVERS

PAN

P/N

064063

RING

S

SLEEVE

17

R26

220Kn

R7.1

82Krilw

REVERS

R29r.,__,

180Kn

3

LIN

15

-22

25

,MAY

,WHITE

FOOT

PEDAL

CP3

CP2

TH1

CP4

FUSE

4A

SLO-BLO

IN

180V

AND

128V

MODELS.

T2A

IN

238V

AND

248V

MODELS.

S2

INSTALLED

IN

128V

UNITS

ONLY.

ALL

VOLTAGES

HENNAED

WITH

RESPECT

TO

GROUND

USING

A

CNN

OF

AT

LEAST

IISI

AC

INPUT

IMPEDANCE

AND

10MnOC

IMPEDANCE.

VOLTAGES

MY

VARY

MMX.

TEST

CONDITIONS:

LINE

VOLTAGE

AT

128VAC

68Hz.

BRIGHT

SWITCHES.

REVERS.

AND

VIBRATO

OFF.

ALL

NORMAL

CHANNEL CONTROLS

AT

FULL

CCW.

ALL

VIBRATO

CHAIM°.

CONTROLS

AT

50X

ROTATION.

DC

VOLTAGES

MEASURED

WITH

NO

SIGNAL

PRESENT.

AC

VOLTAGES

AT

TP16.17

MEASURED

WITH

AN

OSCILLOSCOPE

USING

A

XIS

PROBE.

82017F

CAP

INSTALLED

IN

23OV

UNITS

ONLY.

INSTANCES

NOT

USED:

C29

CP5

CPS

CP32

CP35

C60-11

5A

4.

0x,

Sl

ir

-tC

NC

GROUND

CPS

Jpi

CP7

4

c==

I.

13

27

2On

R75

R39

C39

1IkV586pr

5.8VM-M

TPIS

C213

MI2A17

distpr

2

488V

%Tx

R36

R4I

R92

87K,

1W

20v

TPI

.1

1

VGA

22Kri

IW

6341V

R4

1

1

220Kn*

470n

eg

e

n

45.a

.

2

yL

&

CZ

168n

47

1211mv

TP14

7

-----

1

/

2

12AT7

6

10

R

11K4

43

TP28

1W'

TP1.8

R.15

220Kni

V

68

C23

.1

V7

GLSGC

R46

1.5Kn

5

638V

19v

R47

Mit

1.5Kn

3

21

7

21

7

6LGISC

V8

VS

6L66C

R48

1.5Kn.

5

R49

ASV

1.5Kn

3

R50

1

n4711n

R51

1

p470n

+446

TP21

108v

TP2

3

2

7

E

7

6LSGC

VIO

3

R52

Ilr

IC

470n

R53

r

C

470n

BRN

13+

BLU

+2.0

TP12

0Vok-ok

TP34

C25

C24

.81

pF

400V

400V

1

V5A

R54

20Kn

g

2

Val

kg

7

n.

SPEED

R56

-.35V

ON

......

"1,;;4

-8.5V

OFF

270to

l

f

TP31

R59

AAV

18Kn.

1.8t1n

SRN

r

I

C7

1N

-

4003

SRN

(4

CP10

RE0

(

P11

-65

TP25

R70

BIAS

3.31(n

AML

NN

R71

18K

LIN

/

C35

-

1801E

CR1

C41_

82

lkV

880V

1A

RED4Al2

GRN

13

LAI

T47

I

GRN

1%

837610

R7

w

CR4

C37

3Mn

10pF--

10C

188./

C

-

C36

TP26

-50

69Y

5

1Kn.

C27

2

1e;

C38

3

1kV

.7Kn

(

1alE2111

17

C28

Illev

R62,

1001(n4

A

w

g

OPI

INTENSITY

`

lltE-

cllt64

58Kin

i

I8Mn

1

,

57

-

--

.

R63;

Lar--

i

.

301

L

_J

3

•

837836

6

V5B

/

R61

1.08Kn

W

==

C40

pF

.822

630V

+442

TP27

Cp23

LI

CP24

CP22v

C30

280F

285V

131

CP1T

>

__,/S3

CP16

CPI

)

11

29

85f

STAN

C4

6LK

TO

FILAMENTS

R69

+GM

'Mtn

HUM

ADJUSTMENT:

ADJUST

FOR

MINIMUM

HUM

FROM

SPEAKERS

WITH

AN

OPEN

PLUG

IN

J3,

VIBRATO

CH.

VOLUME

MID.

AND

BASS

CONTROLS

FULL

CW.

NORMAL

CH.

CONTROLS

FULL

clw,

REVERS

AND

VIBRATO

OFF.

TO

FILAMENTS

HIM

ADJ.

1.9V

ON

...0.0V

OFF

TP32

+440

TP28

13V

ON

...0.8V

OFF

TP33

LIN

CP25wz

R67

CP26

R68

FP1Kn

y

r

FP4.77.4

CP27

NM

C4--•

VW

AAA

C32

cas

+393

T1

1

311

373

lea

Ta

A

RELEASED

PR186

08

-MAR

-S1

B

ECO

L02271

OS-JUL-91

C

EC

784

1I-SEP-91

D

EC

1388

/

ECO

L02897

28-OCT-94

MDW

E

EC

1786

IS-OCT-9S

MOW

9.8v

23

16

EXT.

SPEAKER

15

037612

.3711

SPEAKER

TIP

SLEEVE

(2)

837617

On

EACH.

OUTPUT

TEST:

85

WATTS

MINIMUM

RMS

INTO

A

4n

RESISTIVE

LOAD

AT

5X

THD

WITH

IkHz

INPUT

INTO

THE

NORMAL

CHANNEL

AT

TP24.

ALL

NORMAL

CHANNEL

CONTROLS

FULL

C11.

ALL

VIBRATO

CHANNEL

CONTROLS

FULL

CCW.

REVERS

AND

VIBRATO

OFF.

VIBRATO

TEST:

ALL

VOL

CONTROL

TA8136MASEURED

WITH

SPEED

MAX.

AM

AT

NO

SIGNAL

PRESENT.CCW),

APPROXIMATE

WAVEFORM

AT

TP351

205

1

r*Ofessi

EXPORT

TRANSFORMER

WIRING

DIAGRAM.

CP3

CPBS

CP84

11

car

•

cos

►

CPS6

168V

eart

248V

00/811111z

58/131111z

5I/14

CP8

CPS

CPS

CPS9

CP7

CP7

CP7

.CP93

CP33

CP94

CP94

CP34

CP4

CP36

CP36

EPM

CP4

TIE

UP

CP8

-

TIE

UP

CP4

ALTERNATE

EXPORT

POWER

TRANSFORMER

P/N

849181

T3

[MN

q7li

VIOLET

BLK/RED

BLK/GRN

BL

WHT

WHT/BLK

BRN

CAI

5

CP11

CP12

(4-

E

GAN

CP13

E

GIN

CPI4

<*--

DATABASE

Fars

Z1869.11OF

CHECKED

SY:REPLOT

DATE:

85

-MAY

-GI

-APPROVED:

MOW

-

IETARY

DATE:

05

-MAY

-81

TOLERANCES:swarm"

X.X

.1.1111

-

X.XX

If

.III

*LOW

MOLES

/844TO

•

7110

afllA..5.

sT

45.

CUITISNI

IMPINIRISII

sae.

1

141

.

KPOWNI

.,

raw

.

W.

-

6

,...r1

=

„1

.111110~11t

CO.

ra

ffh

i

ggi

r

c"

411ne

a

V.

loll&

MUSICAL

INSTRUMENTS

2621

Research

Drive

Corona.

CA

91720

USA

TITLE:

SCHEMAT

I

C

65

TWIN

REVERS

AMPLIFIER

SIZE

MMT

HIKER

MISIZMOLTI

65

TWIN

REVERS

GUITAR

AMPLIFIER

meam.WILKENS

nmin

WILKENS

037627

REV.

se:LEM:ME

StEET

1

OF

Aft

wc.0037633000

8

7

S

5

3

2

1

Fender 3965 Twin Reverb 65 Twin Reverb Schematic - Page 1

Fender 3965 Twin Reverb Manual

Page 1 highlights