Kenwood TM-631A User manual

GOONS)

144/220MHz

FM

DUAL

BANDER

TM-631A

144/440MHz

FM

DUAL

BANDER

IM-731A

144/430MHz

FM

DUAL

BANDER

IM-731A

TM-731E

INSTRUCTION

MANUAL

KENWOOD

CORPORATION

©PRINTED

IN

JAPAN

B50-8295-00(K,

M,

P,

W)(T)

90/12

1110987654321

89/121110987654

Thank

you

for

purchasing

this

new

transceiver.

IMPORTANT:

Please

read

this

instruction

manual

carefully

before

placing

your

transceiver

in

service.

SAVE

THIS

INSTRUCTION

MANUAL.

CAUTION:

Long

transmission

or

extended

operation

in

the

HI

power

mode

might

cause

the

rear

of

this

transceiver

to

get

warm.

Do

not

place

the

transceiver

where

the

heat

sink

(rear

panel)

might

come

in

contact

with

plastic

or

vinyl

surfaces.

This

Instruction

Manual

covers

the

following

models.

TM-631A

:

144/220

MHz

FM

DUAL

BANDER

TM-731A

:

144/440

MHz

FM

DUAL

BANDER

(U.S.A.

version)

TM-731A

:

144/430

MHz

FM

DUAL

BANDER

(Other

market)

TM-731E

:

144/430

MHz

FM

DUAL

BANDER

The

following

explicit

definitions

apply

in

this

manual:

Note

:

If

disregarded,

inconvenience

only,

no

risk

of

equipment

damage

or

personal

injury.

:

Equipment

damage

may

occur,

but

not

per-

sonal

injury.

Caution

CONTENTS

Poe

BEFORE

OPERATION

...i..00:scscceccsecccneneneroes

3

SPECIFICATIONS

and

ACCESSORIES

io

INSTALLATION

INSTRUCTIONS

..

6

IPERA

TIONS.

cvcrcteexsegetistacrsentvevesvacrasansneind

9

OPERATING

CONTROLS

RECEIVER'OPERATION.

.iscscsscessccriscoesstuaeens

15

Reception

Frequency

Selection

Frequency

Step

Selection...

A.B.C.

(Automatic

Band

Change)

...

TRANSMITTER

OPERATION

REPEATER

OPERATION

Transmitter

Offsets

REVErse|FUNCHON

scssicvsiesieneveuaisooruwiaveone

20

Tone

Operation

Autopatch

(U.S.A.

version

only)......ssseseeee

22

MEMORY

55

sseccdhtcacatea

cocaxtercssane

atveesaunsee

23

Microprocessor

Memory

Back-up

Microprocessor

Initialization

Memory

Channel

Memory

Contents

Memory

Entry

sresesisscusecessreransxcestacaniecuan

24

Simplex/Normal

SHIFT

Odd

Split

Channels

Call,

CHANNEL

ses

ovsenaedes

os

sseasnancescewene

26

Memory

Recall

Memory

Shift

SCAN

cscnanvesnarsascdawsnanaasnienrnsastensienpebendace

27

Scan

Options

Hold

Resume

Programming

Programmable

Band

Scan/Band

Scan

Memory

Channel

Scan....s.scsseceseneeeeeeeeees

28

Double

Scan

Priority

Alert

Memory

Channel

Lockout.....esssseeesseereneee

29

Tone

Alert

System

BLOCK

DIAGRAM

and

SCHEMATIC

DIAGRAM"""""""

another

sheet

MAINTENANCE

In

Case

of

Difficulty

....

OPTIONAL

ACCESSORIES

............csceeeeseeees

32

CTCSS

unit

TSU-6

REMOTE

CONTROLLER

RC-10

ACCESSORIES

wvcsisinssinisvnnsncnontessseinas’aeciase

35

1.

[A

waRNiNe]

BEFORE

OPERATION

TO

PREVENT

ELECTRIC

SHOCK,

FIRE

AND

OTHER

INJU-

RY.

PLEASE

NOTE

THE

FOLLOWINGS:

To

avoid

risk

of

electric

shock,

under

no

circumstances

should

the

unit

be

opened:

Do

not

place

this

unit,

where

it

will

be

exposed

to

direct

sunlight

or

close

to

heating

appliances.

To

ensure

good

ventilation,

do

not

put

anything

on

top

of

the

cabinet

and

allow

at

least

15

cm

(6

inches)

of

space

behind

the

unit.

The

power

requirement

is

13.8

VDC.

Never

attempt

connection

to

a

24

VDC

source.

Do

not

place

the

unit

in

areas

of

excessive

dust,

high

hu-

midity

or

on

unstable

surfaces.

Do

not

drop

pieces

of

metal,

needles,

coins

and

other

elec-

trically

conductive

materials

into

the

unit.

Do

not

pull

the

power

cord,

when

disconnecting

it

from

the

AC

wall

outlet.

Grasp

the

plug

and

ensure

that

your

fingers

do

not

touch

the

live

pins.

If

an

abnormal

odor

or

smoke

is

detected,

immediately

turn

the

power

off

and

pull

out

the

power

plug.

Contact

the

KENWOOD

service

station

or

your

dealer.

CLEANING

1.

Turn

the

power

off,

before

cleaning

the

unit.

2.

Do

not

use

any

type

of

abrasive

pad,

thinner,

benzine

or

any

substances

which

may

damage

the

unit.

3.

Wipe

the

front

panel

and

other

exterior

surfaces

of

the

unit

with

a

soft

dry

cloth

or

a

soft

cloth

lightly

moistened

with

water.

2.

SPECIFICATIONS

AND

ACCESSORIES

2-1.

SPECIFICATIONS

2-2.

ACCESSORIES

lode!

1-731,

Giharmakes|

TM7aIe

TM-631A

J

Specifications

U.S.A,

version

Version

Unpack

your

new

transceiver

carefully,

and

con-

744

to

148

MHz|144

to

148

MHz|144

to

146

MHz|144

to

148

MH;

i

i i

j

Frequency

range

PES

tape

bia

beep

a

ia

ten

eee

firm

that

the

accessories

listed

below

are

included

Mode

—

F3€

(FM)

in

the

box.

‘Antenna

impedance

50

ohms

Pe

it

it!

13.8

VDC

+15%

.

ct

es

a

MC-44DM

Microphone....791-0380-15

.....1

ea.

§

[E

|

Tranamit

mode

Less than

11

A

(U.S.A.

and

CANADA)

=

[5s

Besene

mode

with

no

Less

than

0.6

A

or

Operating

temperature

=20°C

to

+60°C

(-4°F

to

+140°F)

MC-44E

Microphone.......

7T91-0382-15.....1

ea.

Dimensions

(WH

201

160x

60x

219

mm

(8.97

x2"

x

8.6")

(U.K.

and

Europe)

Weight

1.8

kg

(3.97

Ibs)

oF

Output

Hi

744

MHz:

50

W,

220

MHz:

25

W,

430/440

MHz:

35

W

Microphone

..........csseeeeee

T91-0379-15.....

1

ea.

‘

aa

Low

=

ae

(Other

market)

lodulation

feactance

modulation

r

Sauna

Taaavon

leer

Seas

Microphone

Hook..........«

J20-0319-24......1

ea.

Maximum

frequency

deviation

£5

kHz

(U.S.A.

and

CANADA)

F*

|

Audio

distortion

(at

60%

Less

than

3%

(300

to

3000

Hz)

Self

tapping

Screw.........

N46-3010-46.....2

ea.

Microphone

impedance

500

to

600

ohms

(U.S.A,

and

CANADA)

Circuitry

Double

conversion

superheterodyne

Bracket

iiiiisiicssscasceas

-..J29-0418-03.

144

MHz:

16.9

MHz/455

kHz,

i

- |

U.S.A.

version

220

MHz:

30.825

MHz/485

kiiz,

Mobile

Mounting

Kit

.......N99-0318-05

.

Intrmeckat

440

MHz:

21.6

MHz/455

kHz

Wrench

-W01-0414-05

....1

ea.

juency

144

MHz:

10,7

MHz/455

kHz,

5

Other

market

Ano

the

so

aoptic/abe

Kriz

DC

Power

Cable

-E30-2111-05

.....1

ea.

3

Sensitivity(12

dB

SINAD)

144

MHz:

Less

then

0.2

nV,

220

MHz:

Less

than

0.18

2V,

Fuse

(15A)

-FO5-1531-05......

1

ea.

iz:

Less

than

0.16

.

€

%

|

cores

ZG

ilaiddera

than

TZkHz,

Instruction

Manual

-B50-8295-XX

..1

copy

letteavity

—

80

dB:

Less

than

24

kHz

Warranty

Card.

1

ea,

Spurious

response

Better

than

60

dB

(U.S.A.

CANADA

and

Europe)

‘Squelch

sensitivity

Less than

0.09

»V

J 4

Output

More

than

2

W

across

8

ohms

load

(5%

distortion)

i

External

speaker

impedance

8

ohms

After

unpacking

Notes:

Shipping

container:

1.

Circuit

and

ratings

are

subject

to

change

without

notice

due

to

ad-

Save

the

boxes

and

packing

in

the

event

your

unit

vancement

in

technology.

needs

to

be

transported

for

remote

operation,

main-

2.

*Recommended

duty

cycle:

ri

St,

*

.

tenance,

or

service.

1

minute

Transmission,

3

minutes

Reception

-

3.

INSTALLATION

INSTRUCTIONS

3-1.

INSTALLATION

Mounting

Bracket

When

installing

the

transceiver

in

a

vehicle

consider

the

ease

of

operation

and

safety

when

selecting

the

location

for

the

mounting

bracket.

Ts

Install

the

bracket

using

the

supplied

flat

washers

and

self

tapping

screws

(4

pcs.

each).

.

Attach

the

transceiver

loosely

using

the

SEMS

screws

(4

pcs.).

.

The

angle

of

the

bracket

may

be

adjusted

to

any

of

9

possible

viewing

angles.

Select

the

desired

angle.

(Fig.

2)

.

Hold

the

transceiver

in

place

and

tighten

the

4

SEMS

screws

using

a

wrench

or

screwdriver.

Flat

washer

Self

tapping

screw

[}

3-2.

CONNECTIONS

3-2-1.

Mobile

Installations

External

Speaker

The

SP-41

or

TM-731A/731E:

The

MA-700

dua!

band

antenna

is

recommended.

To

144

MHz

To

144

MHz

antenna

the

SP-50B

is

Duplexer

To

220

MHz

To

430/440

MHz

A

+

t

TM-631A:

y

TM-731A/731E:

antenna

—

antenna

To

430

MHz

Cautions:

—

te

2.

Before

installing

the

power

cable,

be

sure

to

remove

the

negative

lead

from

the

battery

for

safety.

After

installation

and

wiring,

be

sure

to

double

check

for

correct

installation

before

reconnecting

the

negative

lead

to

the

battery

terminal.

.

If

the

fuse

opens,

be

sure

to

check

that

each

conductor

has

not

been

damaged

by

short-circuiting,

etc.

Then

replace

with

a

new

fuse

of

the

same

rating.

.

After

completing

the

wiring,

wrap

the

fuse

holder

with

heat

resistant

tape

to

protect

against

heat

and

moisture.

.

Do

not

remove

the

fuse

even

if

the

power

cable

is

too

long.

A.

Battery

Connections

Connect

the

power

cable

directly

to

the

battery

terminals.

Use

of

the

cigarette

lighter

socket

can

lead

to

poor

connec-

tion,

and

result

in

poor

performance.

Pay

close

attention

to

the

polarity

of

the

cables

when

connecting

them

to

the

battery.

Make

sure

the

positive

(+)

and

negative

(—)

lead

polarity

is

correct

when

connecting

to

the

battery.

Engine

compartment

Th

Passenger

compartment

Fuse

Red

y

To

the

transceiver

Select

a

location

where

the

power

cable

is

pro-

tected

from

heat,

mols

ture

or

abrasion

when

securing

the

cable.

Make

sure

the

cable

does

not

directly

contact

the

edge

of

the

hole

by

using

4

‘a

grommet.

Chassis

or

fire

wall

Battery

™

f

the

wiring

hole

in

the

fire

wall

or

chassis

is

too

small,

disas-

semble

the

fuse

holder

to

thread

the

wire

through

the

hole.

From

passenger

compartment

Thread

like

this

B.

Ignition

Noise

This

transceiver

has

been

designed

to

suppress

ignition

noise;

however,

if

excessive

noise

is

present,

it

may

be

necessary

to

use

suppressor

spark

plugs

(with

resistors).

3-2-2.

Fixed

Station

A

regulated

DC

power

supply

(13.8

VDC

capable

of

sup-

plying

at

least

10

Amperes)

is

required.

The

PS-430

and

the

PS-50

are

recommended.

CAUTION:

1.

Never

connect

the

AC

power

cable

to

the

AC

outlet

un-

til

all

other

connections

have

been

made.

2.

Before

connecting

and

disconnecting

the

power

connec-

tor,

be

sure

to

turn

off

the

POWER

switches

of

both

the

transceiver

and

the

DC

power

supply.

3.

Observe

polarity

of

the

DC

power

cable.

The

transceiver

operates

on

13.8

VDC,

negative

ground.

Battery

polari-

ty

must

be

correct.

The

power

cable

is

color

coded:

Red

-—

+

(Positive

polarity)

Black

—

(Negative

polarity)

\o/

(a

SP-430

HGOUUNONNONGONGA

nIniUATOO

ARON

+

TM-631A

+

To

220

MHz

antenna

3

TM-731A/731E

:

To

430/440

MHz

antenna

—

3-2-3.

Antenna

The

type

of

antenna

that

is

used

will

greatly

affect

the

per-

formance

of

the

transceiver.

Use

a

properly

adjusted

anten-

na,

of

good

quality,

to

enable

your

transceiver

to

perform

at

its

best.

The

antenna

input

impedance

is

50

ohms.

Use

50-ohm

coaxial

cable

such

as

RG-8U

or

8D-2V

for

this

con-

nection.

If

the

antenna

is

far

from

the

transceiver

the

use

of

low

loss

coaxial

cable,

such

as

RG-8U

is

recommended.

Match

the

impedance

of

the

coaxial

cable

and

that

of

the

antenna

so

that

the

SWR

is

less

than

1.5

to

1.

The

protec-

tion

circuit

in

the

transceiver

will

activate

if

the

SWR

is

par-

ticularly

poor

(greater

than

3

to

1).

High

SWR

values

will

cause

the

transmitter

output

to

drop,

and

may

lead

to

TVI

or

BCI

reports.

CAUTION:

For

protection

against

fire,

electric

shock,

personal

injury,

or

damage

to

the

radio,

use

a

lightning

arrester

in

your

an-

tenna

lines.

4.

OPERATION

i

L

+t

CONTROLS

PS

==

wes

agé

©

4-1-1.

Front

Panel

Hen

a

F

Lak

ST

19h

oa

gh

ABE

—

=

eee

®@

Main

Tuning

control

This

control

is

used

to

select

the

desired

transmit/

receive

frequency,

Memory

Channel,

Frequency

Step,

Tone

Frequency,

and

Scan

direction

of

the

MAIN

fre-

quency

band.

CALL

key

The

CALL

key

selects

the

CALL

channel

of

the

MAIN

frequency

band.

The

frequency

may

be

reset

to

any

desired

frequency.

(See

CALL

Channel

P26.)

VFO

key

This

key

is

used

to

return

to

VFO

operation

after

oper-

ating

in

the

MR

(Memory

Recall),

or

CALL

Channel

mode.

The

MAIN

tuning

control

will

increase

frequen-

cy

in

the

selected

step

size,

the

tone

frequency,

and/or

the

frequency

step.

Press

and

hold

the

key

for

longer

than

1

second

to

in-

itiate

VFO

scan.

Press

the

key

after

scan

has

been

in-

itiated

will

cause

scan

to

stop.

MR

key

This

key

is

used

to

select

Memory

Recall

operation

af-

ter

operating

in

the

VFO

or

CALL

channel

mode.

The

MAIN

Tuning

control

may

be

used

to

select

the

desired

2)

@

Microphone

audio—_

@

PTT

(STBY)

switch

memory

channel

in

this

mode.

Press

and

hold

the

key

for

longer

than

1

second

to

in-

itiate

MR

scan.

Press

the

key

after

scan

has

been

in-

itiated

will

cause

scan

to

stop.

VOL

control/Power

switch

The

volume

control

and

power

switch

are

combined.

Rotating

the

control

clockwise

will

turn

ON

the

tran-

sceiver.

Advancing

the

control

further

clockwise

will

increase

the

total

volume

of

two

bands.

The

BALANCE

control

proportions

the

volume

among

the

two

bands.

MAIN

SQL

control

This

control

is

used

to

select

the

desired

SQL

threshold

level

of

the

MAIN

frequency

band.

Microphone

connector

Plug

the

standard

or

optional

microphone

into

this

jack.

GND

(PTT)

@

GND

(Microphone)

RX

Audio

output

(Approx.

100

mV/10

kQ)

@

DOWN

©

8

V/Max.

50

mA

@

up

Front

view

10

®7=

®=

@

ALB.

C.

DUAL

BAND

CTCSS.

SEI

A

ae

eee

58

edie

Oe

pee

.,

3...

E9

GO

re

Nee

©)

o)

® ®

MHz

key

This

key

is

used

to

change

frequency

in

1

MHz

steps

during

VFO

operations.

Pressing

and

holding

the

key

will

continuously

change

the

frequency

in

1

MHz

steps.

Sub

Tuning

control

This

control

is

used

to

select

the

desired

receive

fre-

quency

and

Memory

channel

of

the

SUB

band.

LOCK

switch

This

key

will

deactivate

all

functions

except

the

PTT

switch.

BALANCE

control

This

control

proportions

the

total

audio

volume

among

the

two

bands.

MAIN

position

:

Audio

only

from

the

MAIN

band

Center

position

:

Equal

audio

from

both

bands

SUB

position

:

Audio

only

from

the

SUB

band

SUB

SQL

control

This

control

is

used

to

select

the

desired

SQL

threshold

level

of

the

SUB

band.

LOW

key

This

key

is

used

to

select

the

transmit

output

power

level

as

follows:

HI

(no

indicator):

144

MHz:50

W/220

MHz:25

W/

430

MHz:35

W

LOW

:

5W

DIM

key

This

key

is

used

to

select

either

high

or

low

intensity

of

both

the

LCD

display

and

control's

illuminations.

For

the

key

to

function,

it

must

be

pressed

within

5

se-

conds

after

pressing

the

F

key.

A.B.C.

(Automatic

Band

Change)

When

this

key

is

pressed,

the

contents

of

the

SUB

band

will

be

transfered

to

the

MAIN

band

whenever

a

signal

is

received

at

the

SUB

band

antenna,

which

is

strong

enough

to

open

the

squelch.

The

contents

of

the

MAIN

band

are

transfered

to

the

SUB

band

at

the

same

time.

DUAL

band

This

key

is

used

to

turn

the

SUB

band

ON

or

OFF.

CTCSS

SEL

(With

the

TSU-6)

Pressing

the

key

within

5

seconds

of

pressing

the

F

key

will

switch

the

CTCSS

function

alternately

between

the

UHF

band

and

VHF

band.

(To

activate

the

CTCSS

func-

tion

use

the

CTCSS

key.)

During

scan

press

the

key

to

initiate

double

scan.

BAND

key

This

key

is

used

to

change

the

contents

of

the

MAIN

band.

Kenwood TM-631A User manual

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