Kenwood T-76 Bedienungsanleitung

FM/MW/LW

STEREO

SYNTHESIZER

TUNER

KENWOOD

T-76/76L

SERVICE

MANUAL

PRINTED

JAPAN

B51-4610-00(J)2385

Metallic

cabinet

tAdl-}*

Panel

Knob

Front

sachets

{K29-4420-04)

“KENWOOD

Sub

pane!

Foot

{A22-)*

(J02-1040-05)

Cord

with

connector

{E30-2630-05}

ATTENEMI

Lock

terminal

board

Phono

jack

Rectangular

receptacle

Foot

{E20-}*

(E13-0235-05)

”

{608-0312-05}

(J02-0370-065)

T-76

and

T-76L

don't

have

power

supply

transformer.

Use

A-56,A-76

RM-90PS

power

supply

power

neither

available,adjust

operate

instructed

page

When

turning

the

power

on,

short

the

connec-

tor

CN201

{XO5-B/2}.

*Refer

parts

List

page

25.

Photo

T-76L

T-76/76L

CONTENTS/ACCESSORIES

Contents

CONTENTS/ACCESSORIES

2.0.0...

ccc

cece

sere

eee

SCHEMATIC

DIAGRAM

(T-76}

.......

eee

cGatntntia

BLOCK

DIAGRAM..........0..5

Use

aeedeaeu

ere

een

saat

iieatenk

SCHEMATIC

DIAGRAM

(T-76L)

o.oo...

cece

ccc

sees

eee

ees

CIRCUIT

DESCRIPTION.,.........ccccccccteecsteees

ree

eeeeneeeeeens

EXPLODED:

VIEW

sisds

occkincsedevvciss

cee

sadsaseuteeses

coeertes

ADJUSTMENT

wisceiscvcedcatde

soseeiliteteies

detec

sane

seein

eden

sce

PARTS

LIST)

sechadacsastecncdargndetecccantess

sLatsel

Mmwabudies

bean

ees

BOARD

(COMPONENT

SIDE

VIEW)

.........0..

SPECIFIGA

PIONS

34.

cnarcess

ieeseseedeenreansd

seneeentes

WIRING

DIAGRAM

oo...

cee

cce

cece

cee

eee

eres cece

peceen

anes

JAPAN

MADE

SINGAPORE

MADE

FRANCE

MADE

X05-4320-20(M}

X05-4330-20(M}

X05-4320-71(X)

X05-4330-71

X05-4322-71(T,E)

X05-4332-71(T,E}

X05-4322-72(E)

The

T-76

and

T-76L

are

made

different

countries.

However,

their

circuits

are

indentical.

Accessories

TYPE

ANTENNA

LOOP

ANTENNA

{T90-0176-05}:

JAPAN

MADE

{T90-0153-05):

FRANCE

MADE

{T90-0176-05):

FRANCE

MADE

(T90-0175-05):

SINGAPORE

MADE

{

ANTENNA

ADAPTER

(T90-0185-05):(T-76L

ONLY)

LOOP

ANTENNA

{T90-0173-05):

JAPAN

MADE

(T90-0174-05):

SINGAPORE

MADE

ANTENNA

HOLDER

(J19-2815-04}

T-76/76L

BLOCK

DIAGRAM

AGL

soc’z0¢

‘

pol~zolo

HOLISTIS

ANY,

-——-

C)]

wv}

QN9

WY;

INV

Wa:

19L-L

Jy'wy

Nee)

NOILSOSS

NOILO3S

Lnv

ANY

Wa;

f)}

Inv

Si-L

T-76/76L

CIRCUIT

DESCRIPTION

Blockdiagram

surrounding

microprocessor

{CXP50216-104S

BAND

SELECT

THK

oerere]

IC201}

LNIW5Das

YZWVI

dls

Lq3

ASB.

Walsas

vied

TOeLNGS

LOWL

~-~

30010

—-—

2220

€l2g0

bizd

functions

T1,

CIRCUIT

DESCRIPTION

T-76/78L

Voo

(Power

supply)

G9,

G10

grid

output

9G,

10G

INT

use

(GND)

RST

RESET

Reset

input

apurs3—|

BUSY

System

control

BUSY

input/output

iat

]

use

(GND)

SCIPXO

BIL

BILINGUAL

SO/PX1

STEREO

Stereo

signal

input

SUPX2

TUNED

Tuning

signal

input

Hypa

10~13

PFO

~PF3

]

KRO~KR3

Key

return

input

ees

14~17

PEO~PE3

_KSO~ks3

Key

scan

output

PYO

oO.

use

(OPEN}

PwéiPyt

MONO

Forced

MONO

output

fee

werpy2

OFF

detection

input

Ac OL

RuciPpy3

DATAI

System

control

DATA

input

ppootstéd|=C

DATAO

System

control

DATA

output

23~CO

PD1

MUTE

Line

mute

MUTE

ON.

PD2

MAIN

use

PD3

ie)

SUB

use

26~29

PCO-

PC3

KR4~KR7

‘Key

return

input

XTAL

Quartz

oscillator

4.194304iMHz

EXTAL

Quartz

oscillator

4.194304MHz

Vss

GND

Veor

PHO/SO

POWER

ON/OFF

control

PH1/S1

DT/KS4

PLL

DATA

output

Key

scan

output

for

destination

PH2IS2

PLL

CLOCK

output

PH3/S3

PCE

PLL

output

38~55

PGOIS4~S23/T8|

Sm~Sh

segment

outputim

iipoawkijpnraahfg¢dec¢,h}

56~63

$22/T9~T2

G1~G8

grid

output

1G~8G

T-76/76L

Test

mode

{1}

Method

setting

While

pressing

the

DOWN

key,

turn

ON.

(2)

Contents

Power

FLL

all

jit

Test

frequency

setting

(Table

{3}

Method

canceling

CIRCUIT

DESCRIPTION

initiat

status

setting

(reset)

{1}

Method

While

pressing

the

ENTER

key,

turn

ON.

{2)

Contents

The

all

memory

cleared

and

the

initial

status

fully

re-

stored.

this

time,

however,

test

frequency

newly

memorized

the

preset

memory.

{Table

Clearing

the

all

lit

state

performed

numeral

key,

BAND

key,

UP/DOWN

key

POWER

key.

Destination

T-76L

TYPE

Otch

O02ch

83.5

MHz

98.0

MHz

98.0

MHz

90.0

MHz

108.0

MHz

O03ch

630

kHz

04ch

990

kHz

630-kHz

990

kHz

108.0

MHz

630

kHz

990

kHz

O05ch

1440

kHz

1440

kHz

1440

kHz

O6ch

1802

kHz

1602

kHz

1610

kHz)

1602

kHz

O7ch

87.5

MHz

162

kHz

O08ch

87.5

MHz

09ch

216

kHz

87.5

MHz

270

kHz

10ch

89.1

MHz

89.1

MHz

89.1

MHz

ich

87.5

MHz

281 kHz

12ch

13ch

87.5

MHz

87.5

MHz

4ch

87.5

MHz

87.5

MHz

14ch

87.5

MHz

87.5

MHz

—-15ch

ch__

87.5

MHz

87.5

MHz

t6ch

13 ch

87.5

MHz

87.5

MHz

1?ch

87.5

MHz

87.5

MHz

18ch

87.5

MHz

87.5

MHz

19ch

20ch

30ch

Conditions

destination

Desti-

nation

76.0

MHz

87.5

MHz

76.0

MHz

;

Band

87.5

MHz

(Table

Receiving

frequency

range

inter-channel

space

87.5

MHz

87.5

Mitz

intermediate

PLL

reference

frequency

76.0~90.0

MHz

100

kHz

531~

1602

kHz

+450

kHz

62ch

MHz

87.5~

108.0

MHz

631

1602

kHz

530~

1610

kHz

87.5~

108.0

MHz

530~

1700

kHz

87.5~

108.0

MHz

631

1602

kHz

87.5~

108.0

MHz

531

1602

kHz

153~

281

kilz

"100

kHz

or60

kHz

—

10.75

10.7

MHz

kHz

100

kHz

KHz

kHz

kliz

+450

KHz

410.7

MH?

“+450

kHz

10.7

MHz

kHz

T-76/76L.

ADJUSTMENT

INPUT

OUTPUT

TURER

ALIGNMENT

ITEN

SETTINGS

POINTS

ALIGN

FOR

CA)

98.

OWHz

lkliz,

+75kilz

dev

Connect

voilmeter

DISCRIMINATOR

CH,%

type)

between

TPS

and

TP4,

tkHz,

+40ki2

dev

{X0§-)

(ET

type)

5OdBu

CANT

input)

CA)

Connect

frequency

98.

OMHz

eounter

TP5 and

AUTO

¥R2

19.

OOkHz

)

dev

TPB

(GND),

98.

MHz

(X05-)

S0dBu

CANT

input)

(x05~-)

{)

98,

OHHz

ikilz,

£88.

25kltz

dev

Pitot;

£7.

5kHz

dev

CHX

type)

LkHz,240kHz

dey

Pitot:

t6kHz

dev

C£,T

type)

60dBe

CANT

input)

(€}

98.

OMH2

DISTORT

IOR

CB)

MOND

IPT

Wininus

distortion

CSTEREQ}

98.

MHz

(102-)

SEPARATION

[kHz.#40kKz

dev

(B}

AUTO

VR4

Kiniaua

crosstalk

CE,T

type

Pilot

t6kHz

dey

$8,

OKHz

(X05~)

only)

Selector:L

BOdBu

CANT

input)

L4dBuCART

input)

L8dBuC

ANT

input)

300a

CMW)

SECTION

SELECTOR

AMCHYD

CD}

1008kiz

400Hz,

30%

mod

26dBuCANT

input)

CA)

93,

OMHz

AYTO

¥R1

Adjust

¥RL

kHz,

t75kHz

dev

(8)

MOKO

(405-)

and

stop

the

point

TUNING

LEVEL

CH.X

type)

98,

OMHz

where

ED({TUNED)

goes

on,

ikHz.t45kllz

dev

(E,T

type)

C1)

}

TUNING

LEVEL

(B)

1008kKz

¥R3

Adjust

¥R3

and.

stop

the

point

where

EDLCTUNED)

ROes

on.

T-76/76L

ADJUSTMENT

The

T-76

and

T-76L

don't

have

power

transformer.Use

A-56/76

RM-SOPS

supply

power

the

T-76/76L.

neither

available,apply

TP12

andTP13

the

tuner

unit

(X05,

A/2),

When

turning

the

power

on,

short

the

connector

201

(X05-B/2}.

(XO5)(A/2}

c3i2

Dummy

antenns

Antenna

fictive

tayfas

[rw-se

aN:

(C)

[~]

FM-MPX

FM-ss

(B)

vottmeter

Oscilloscope

(BD)

—

am-s¢

Voltmeétre

Oscilloscape

otek

;

Klirrfaktomasser

Oszilloskop

Distortion

meter

Distortionmétre

Wechseispannungsmesser

JE:

Hee

EEE

pee

ake

BOARD

(Component

side

view)

POWER

When

turning

the

power

on,

short

the

connector

CN201.

SYSTEM

-EMPHASIS

ANTENNA

CONTROL

CH~

SPACE

(b)

VCO

19.00KHz

Frequency

counter

(a)

Discriminator

ogc

aod

voltmeter

Refer

the

schematic

diagram

for

the

values

resistors

and

capacitors.

T-76/76L.

WIRING

DIAGRAM

POWER

ian}

When

turning

the

power

on,

;

short

the

connector

CN201.

;

Fats

“i

ACLSY

ACIGV

DOE-EMPHASIS

CH.SPACE

ANTENNA

WHI

type

ANTENNA

T.€

‘

X05

AS2

WHI

(b)

VCO

19.00kHz

eel

goce

eae

rts

Saab

Frequency

counter

(a)

Discriminator

LS)

“ i

Oop

aeao

voltmeter

wow

{

ta)

;

Refer

the

schematic

diagram

for

the

values

resistors

and

capacitors.

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