Kenwood Tm-d700a User manual

TM-D700A/E

SENWOUD

SERVICE

MANUAL

©

1999-11

PRINTED

IN

JAPAN

B51-8504-00(S)

880

Microphone

assy

(T91-0396-05:E,M4)

(T91-0615-05:K)

Panel

(A62-0775-03)

Botton

knob

(K29-5400-11)

Knob

(SQL)

(K29-5223-03)

Knob

(ENC)

(K29-5381-03)

Knob

(VOL)

Cabinet

(UPPER)

0-03)

(K29-5222-

(A01-2122-13)

Photo

is

TM-D700A

(K

type)

CONTENTS

CIRCUIT

DESCRIPTION

...........cccssssccrsserens

3

PC

BOARD

VIEWS

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53

SEMICONDUCTOR

DATA

.........scssseeeeees

17

SCHEMATIC

DIAGRAN

..........ccsscseceee

65

DESCRIPTION

OF

COMPONENTSG..........

20

BLOCK

DIAGRAM

..........::::cescssseseeseesseess

77

TERMINAL

FUNCTION

............sccsscseseveoes

22

WIRING

DIAGRAM

...........ccccseseresesssessreoes

79

PARTS

LIST

.........:csesesecersssorssensesesersnncenens

23

LEVEL

DIAGRAM..............:s:sssessssseessesssees

80

EXPLODED

VIEW

.........:ccsscssessesserscenseeene

35

OPTION

(PG-4X)

......ccsececeseestesseresseseaesaens

8|

PACKING

......:cssesecsersssnnesessnrenscensnersonnseene

36

SPECIFICATIONS

...............-

BACK

COVER

ADJUSTMENT

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37

TM-D700A/E

CIRCUIT

DESCRIPTION

Outline

This

device

is

a

dual-band

144/430MHz

FM

car

transceiver

planned

and

designed

for

amateur

radio

communications

and

has

the

following

features.

1.

10.

11,

Has

a

built-in

TNC

which

conforms

to

the

AX.25

protocol.

With

a

portable

computer,

allows

you

to

enjoy

Packet

operation

quite

easily.

Includes

a

program

for

dealing

with

data

formats

supported

by

Automatic

Packet/

Position

Reporting

System

(APRS,).

Is

capable

of

receiving

packet

data

on

one

band

while

receiving

audio

on

another

band.

Enhanced

Programmable

Memory

(PM)

channels

store

virtually

entire

current

operating

environments

for

your

quick

recall.

Contains

a

total

of

200

memory

channels

to

program

frequencies

and

other

various

data.

Allows

each

memory

channel

to

be

named

using

up

to

8

alphanumeric

and

special

ASCII

characters.

“Visual

Scan”

graphically

and

simultaneously

shows

the

conditions

of

up

to

181

frequency

channels.

Continuous

Tone

Coded

Squeich

System

(CTCSS)

or

Digital

Code

Squelch

(DCS)

rejects

unwanted

calls

from

other

stations.

The

separate

front

panel

can

be

mounted

in

a

convenient

different

place

from

the

main

unit.

Equipped

with

an

easy-to-read

large

LCD

with

alphanumeric

display

capability.

Enhances

the

functions

of

an

optional

VC-H1

Interactive

Visual

Communicator

designed

for

plug-and-play

color

slow-scan

television

(SSTV).

Utilizes

Sky

Command

System

II

designed

to

control

a

KENWOOD

HF

transceiver

at

a

remote

location

(U.S.A//

Canada

only).

List

of

Destinations

Model

Guarantee

frequency

range

(MHz)

|Output

Power

(W)

144

430

144

430

TM-D700A|

K

144~148

438~450

50

35

M4

144~146

430~440

25

TM-D700E|

E

144~146

430~440

50

35

K:

U.S.A/Canada

M4:

Taiwan

E:

Europe

Accessories

Name

Parts

number

Remarks

Destination

K

|

E

iM4

Modular

cable

E30-3391-05

|

3m

1/1|1

Panel

bracket

J29-0663-03

1{4i4

J29-0664-13

1/1/14

Bracket

J29-0628-23

1/1/14

Microphone

T91-0396-05

111

T91-0615-05

|

DTMF

BACK

LIT

|

4

DC

cord

E30-2111-15

1/1/44

Fuse

F51-0017-05

115A

1)1/1

Mic

Hook

J19-1526-04

1

B62-1228-00

|

English

1/141

B62-1232-00

|

French

1/1

B62-1231-00

|

Spanish

1/1

instruction

manual

B62-1230-00

|

German

1

B62-1233-00

|

Dutch

1

B62-1273-00

|

English

APRS

t}4141

B62-1234-00

|

Chinese

1

B62-1229-00

|

Italian

1

Warranty

card

B46-0469-10

1

B46-0337-03

1

Cable

E30-3400-05

|

@2.5mm

GPS

jack

|

1

|

1

|

1

Screw

set

N99-0331-05

|

For

the

body

1/4

Screw

set

N99-0382-05

|

For

the

body

and

MIC

1

Screw

set

N99-2014-05

|

For

the

panel

bracket!

1/1

|

1

Foot

J02-0488-04

|

For

protect

from

alala4

scratch

on

a

desk

Pamphlet

B59-1684-00

1

Units

for

Each

Model

and

Destination

Model

TX-AX

UNIT

LCD

ASSY

K

X57-5860-11

B38-0820-05

TM-D700A

fig

X57-5860-21

TM-D700E|

E

X57-5862-71

TM-D700A/E

CIRCUIT

DESCRIPTION

1.Frequency

configuration

The

TM-D700

has

an

individual

VCO

and

PLL

unit

for

both

VHF

and

UHF

bands.

Using

these

separate

VCO

and

PLL

circuit,

it

can

receive

2

separate

bands

at

the

same

time.

Also,

you

can

perform

the

full-duplex

operation.

The

UHF

VCO

is

used

for

the

following

functions:

(i)

UHF

transmission

(ii)

The

first

local

oscillator

for

the

main

band(UHF)

reception.

(ii)The

first

local

oscillator

for

the

sub

band(VHF)

reception(halved).

The

VHF

VCO

is

used

for

the

following

functions:

(i)

VHF

transmission

(ii)

The

first

local

oscillator

for

the

main

band(VHF)

reception.

(iii)

The

first

local

oscillator

for

the

sub

band(UHF)

The

PLL

reference

frequency

is

generated

by

a

12.8MHz

crystal

oscillator

connected

to

the

VHF

and

UHF

PLL

ICs.

This

reference

frequency

is

used

for

both

PLL

circuits.

The

second

local

oscillator

for

the

VHF

band

uses

the

tripled

reception(doubled).

12.8MHz

reference

oscillator

frequency.

The

45.05MHz

second

local

oscillator

for

the

UHF

band

is

generated

by

the

IF

IC

crystal

oscillator

circuit.

ANT

MIC

H

A

y—

MIC

AMP

[5

PLL

1

VCO

1

|

,

UHF

TX

ly

1/2

G

ltst

iF

TNC

AF

|

45.0SMHz

MAIN

B

UHF

RX

[|

I

osc

;

—L

T

c

SUB

Cc

Crystal

VHF

AX

[774

TT

12.8MHz

45.505MHz

Crystal

|

12.8MHz

128MHz

k

D

AQKY

ose

PLL

2

vco

2

I

VHF

TX

|

J

2nd

IF

xe

SP

v7

450kHz

list

iF

AF

|

|38.85MHz

MAIN

AF

AMP

T]

DET

IF2

|

t

E

VHF

RX

[774

|

es Ge

L

Lt

xs

38.4MHz

FE

susp

|_|

UHF

RX

A}

K

|

438.000~449.995MHz

D|

K

|

144.000~147.995MHz

{Gj

K

|

392.950~404.945MHz

K

|

182.850~186.85

MHz

E

|

430.000~439.995MHz

E

|

144.000~145.995MHz

E

|

384.950~394.945MHz

E

|

182.850~184.815

MHz

M4

|

430.000~439.995MHz

M4

|

144.000~145.995MHz

M4

|

384.950~394.945MHz

M4

|

182.850~184.815

MHz

B|

K

|

438.000~439.995MHz

E!

K

|

144.000~147.995MHz

H

|

K_

j

378.100~386.090MHz

K

|

199.575~205.572

5MHz

E

|

430,000~439.995MHz

E

|

144.000~145.995MHz

E_

{|

378.100~382.090MHz

E

|

195.575~200.512

SMHz

M4

|

430.000~439.995MHz

M4

|

144.000~145.995MHz

M4

|

378.100~382.090MHz

M4

|

195.575~200.572

5MHz

C

|

K

|

144.000~147.995MHz

F

|

K

|

438.000~449.995MHz

||

K_|

4189.050~193.045MHz

K_

|

399.150~411.1450MHz

E

|

144.000~145.995MHz

E

|

430.000~439.995MHz

E

|

189.050~191.045MHz

E

|

391.150~401.115

MHz

M4}

144.000~145.995MHz

M4

|

430.000~439.995MHz

M4

|

189.050~191.045MHz

M4

|

391.150~401.145

MHz

Fig.1

Frequency

configuration

TM-D700A/E

CIRCUIT

DESCRIPTION

2.

Receiver

system

2-1.Main

VHF

Receiver

The

incoming

signal

from

the

antenna

passes

through

a

filter

circuit

and

goes

to

the

RF

amplifier

(Q205).

The

amplified

signal

enters

the

helical

resonator

(L209,

L207,

L204).

The

helical

resonator

is

tuned

to

the

desired

frequency

according

to

the

BPF

voltage

output

from

the

CPU

with

the

varicap

(D206,

D205,

D202).

After

the

signal

passes

through

a

filter,

it

is

amplified

by

another

RF

amplifier

(Q202)

and

goes

to

the

single

balanced

mixer

(Q200,

Q201).

The

frequency

of

the

ANT

Y

LPF

AF

AMP

BPF

RF

AMP

he

Q205

mt

—

3SK239A

aS

L209,L207,L204

D206

D205

D202

TUNE

BY

VOLTAGE

CPU

signal

is

converted

by

the

first

local

oscillator

(Upper

heterodyne)

to

generate

a

38.85MH

first

IF

signal.

The

signal

passes

through

the

MCF

(XF100),

is

amplified

by

the

IF

amplifier

(Q112)

and

enters

the

IF

IC

(IC100).

Then

the

signal

is

converted

to

the

450kHz

second

IF

signal

by

the

second

iocal

oscillator,

which

is

tripled

12.8MHz

(Lower

heterodyne).

Then

it

is

detected

to

generate

an

audio

signal.

SINGLE

BALANCED

MIXER

IF

AMP

>

AF

Q102

2804649)

x3

(N.P)

12.8BMHz

Fig.2

Main

VHF

Receiver

circuit

2-2.Main

UHF

Receiver

The

incoming

signal

from

the

antenna

passes

through

a

filter

circuit

and

enters

the

RF

amplifier

(Q508).

The

amplified

signal

passes

through

the

SAW

filter

(L517),

is

amplified

by

another

RF

amplifier

(Q505).

Then

it

passes

through

the

LC

filter

(L508)

and

enters

the

single

balanced

mixer

(Q501,

Q502).

The

frequency

of

the

signal

is

converted

by

the

first

LC

BPF

local

oscillator

(Lower

heterodyne)

to

generate

a

45.05MHz

first

IF

signal.

The

signal

passes

through

the

MCF

(XF400),

is

amplified

by

the

IF

amplifier

(Q406)

and

enters

the

IF

IC

(IC400).

The

signal

is

converted

to

the

455kHz

second

IF

signal

by

the

second

local

oscillator

(Upper

heterodyne).

Then

itis

detected

to

generate

an

audio

signal.

SINGLE

BALANCED

IXER

ANT

HPF

LPF

REAMP

saweitteR

REAMP

|

—~

~h

Q508

oo

eS

PT

3SK239A

=

b>

AF

45.505MHz

[7]

7

Fig.3

Main

UHF

Receiver

circuit

TM-D700A/E

CIRCUIT

DESCRIPTION

2-3.Sub

VHF

Receiver

The

signat

distributed

from

the

RF

amplifier

(Q205)

at

the

main

VHF

receiver

circuit

passes

through

a

filter

circuit.

Then

it

enters

the

RF

amplifier

(Q507).

The

amplified

signal

goes

to

the

single

balanced

mixer

(Q501,

Q502).

The

frequency

of

the

signal

is

converted

by

the

first

local

oscillator

generated

by

half

of

the

UHF

VCO

oscillator

frequency,

using

the

prescaler

(1C303).

It

converts

to

the

upper

heterodyne

frequency

to

generate

a

45.05MHz

first

IF

signal.

The

signal

passes

through

the

MCF

(XF400).

Then

it

is

amplified

by

the

IF

amplifier

(Q406),

and

enters

the

IF

IC

(IC400).

The

signal

is

converted

to

the

455kHz

second

IF

signal,

using

the

second

local

oscillator

(Upper

heterodyne).

Then

the

signal

is

detected

to

generate

an

audio

signal.

SINGLE

BALANCED

ANT

Y

LPF

RF

AMP

LPF

HPF

RF

AMP

Q205

=

F'esxaa9a

oe

ma

MIXER

IF

AMP

MCF

IF

IC

Q406

2SC510B

IC400

He

AF

{Y)

1C303

tt

UPB

|

12

a

15086

45.505MHz

[1

LO

Fig.4

Sub

VHF

Receiver

circuit

2-4.Sub

UHF

Receiver

The

signal

distributed

from

the

RF

amplifier

(Q508)

at

the

main

UHF

receiver

circuit

passes

through

a

filter

circuit.

Then

it

enters

the

single

balanced

mixer

(Q200,

Q201).

The

signal

frequency

is

converted

by

the

first

local

oscillator,

generated

by

doubling

the

VHF

VCO

oscillator

frequency

(Lower

heterodyne)

by

Q7,

to

generate

a

38.85MHz

first

IF

signal.

The

signal

passes

through

the

MCF

(XF100).

Then

it

is

amplified

by

the

IF

amplifier

(Q112),

and

enters

the

IF

IC

(IC

100).

The

signal

is

converted

to

the

450kHz

second

IF

signal

by

the

second

local

oscillator

generated

by

tripling

the

12.8MHz

reference

oscillator

frequency

(Lower

heterodyne).

Then

the

signal

is

detected

to

generate

an

audio

signal.

ANT

SINGLE

BALANCED

Y

HPE

LPF

RF

AMP

HPF

MIXER

MCF

IF

AMP

Fic

ae

Q508

6200,201

=e

ps

=

3SK239A

Se

25K302

1C100

pe

A

(GR)

7

CF

a7

=

2505108

|

x2

—~e

(Y)

Qio2

2804649

}

x3

(N.P)

12.8MHz

Fig.5

Sub

UHF

Receiver

circuit

TM-D700A/E

CIRCUIT

DESCRIPTION

item

Rating

Item

Rating

Center

Frequency

38.85MHz

Center

Frequency

45.05MHz

Pass

band

width

+7.5kHz

or

more

at

3dB

Pass

band

width

+7.5kHz

or

more

at

3dB

Attenuation

band

width

+25kHz

or

less

at

40dB

Attenuation

band

width

+22kHz

or

less

at

25dB

Guaranteed

attenuation

80dB

or

more

within

fo

-910kHz

(Spurious:20dB

or

more

within

+1MHz)

Guaranteed

attenuation

80dB

or

more

within

fo

-910kHz

(Spurious:40dB

or

more

within

+1

MHz)

Rippie

1dB

or

less

Ripple

1dB

or

jess

Insertion

loss

3dB

or

less

Insertion

loss

4dB

or

less

Termination

impedance

5002

+5%,

6pF+0.5pF

Termination

impedance

8000

+10%,

2pF+10%

Table1

MCF(L71-0491-05)

(TX-RX

Unit

XF100)

Tabie4

MCF(L71-0409-15)

(TX-RX

Unit

XF400)

Item

Rating

Item

Rating

Norminal

center

450kH2

Norminal

center

455kHz

frequency

6dB

band

width

+7.5kHz

or

more

(from

450kHz)

6dB

band

width

+7.5kHz

or

more

(from

455kHz)

50dB

band

width

+15.0kHz

or

less

(from

450kHz)

50dB

band

width

+15.0kHz

or

less

(from

455kHz)

Ripple

2dB

or

less

(within

450+5kHz)

Ripple

2dB

or

less

(within

455+5kHz)

Insertion

loss

6dB

or

less

(at

minimum

lost

point)

Insertion

loss

6dB

or

less

(at

maximum

output

point)

Guaranteed

attenuation

35dB

or

more

(within

450+100kHz)

Guaranteed

attenuation

35dB

or

more

(within

455+100kHz)

vO

matching

1.5kO

VO

matching

1.5kQ

terminating

impedance

terminating

impedance

Table2

Ceramic

filter(L72-0979-05)

(TX-RX

Unit

CF101)

Table5

Ceramic

filter(L72-0981-05)

(TX-RX

Unit

CF401)

terminating

impedance

2.0kQ

terminating

impedance

Item

Rating

Item

Rating

Norminal

center

450kHz

Norminal

center

455kHz

requency

frequency

6dB

band

width

+4.5kHz

or

more

(from

450kHz)

6qB

band

width

+4.5kHz

or

more

(from

455kHz)

50dB

band

width

+10.0kHz

or

less

(from

450kHz)

50dB

band

width

+10.0kHz

or

less

(from

455kHz)

Ripple

2dB

or

less

(within

450+3kHz)

Ripple

2dB

or

less

(within

455+3kHz)

Insertion

loss

6dB

or

less

(at

minimum

lost

point)

Insertion

loss

6dB

or

less

(at

maximum

output

point)

Guaranteed

attenuation

35dB

or

more

(within

450+100kHz)

Guaranteed

attenuation

35dB

or

more

(within

455+100kHz)

I/O

matching

1/O

matching

2,0kQ

Table3

Ceramic

filter(L72-0971-05)

(TX-RX

Unit

CF100)

(E

type

only)

Table6

Ceramic

filter(L72-0980-05)

(TX-RX

Unit

CF400)

(E

type

only)

TM-D700A/E

CIRCUIT

DESCRIPTION

2-5.Audio

Circuit

The

detected

VHF

audio

signal

is

amplified

by

Q108

and

de-

emphasized

by

Q110.

The

UHF

audio

signal

is

amplified

by

Q402

and

de-emphasized

by

Q405.

One

of

these

audio

signals

is

selected

with

a

cross

point

switch

(IC702).

The

signal

passes

through

the

electronic

variable

resistor

(1C804),

is

amplified

by

the

AF

amplifier

(IC806),

and

fed

to

the

speaker

or

the

external

speaker

jack.

The

VHF

or

UHF

audio

signal

selected

by

the

cross

point

switch,

passes

through

the

filter

circuit

(C701)

and

goes

to

the

CPU

(IC604)

for

CTCSS

and

DCS

decoding.

The

signal

buffered

by

Q701

is

output

to

the

PR1

terminal

of

the

DATA

connector,

and

the

signal

buffered

by

Q700

is

output

to

the

PR9

terminal.

The

1200bps

and

9600bps

packet

signals

pass

through

CN600

from

the

cross

point

switch,

go

to

the

TNC

unit

(X52-331).

They

are

used

for

the

TNC

circuit.

In

the

X52-331

unit,

the

1200bps

packet

signal

is

amplified

by

the

AF

amplifier

(IC7),

passes

through

the

audio

filter

(Q5),

and

is

rectified

to

a

rectangular

wave

by

the

comparator

(IC4).

Then,

the

reshaped

signal

goes

to

the

TNC

ASIC

(IC2).

It

passes

through

the

filter

(Q4,

Q7)

and

the

comparator

(IC6).

Then

it

goes

back

to

IC2.

Then

it

is

converted

to

digital

data

and

output

to

the

COM

terminal

at

the

TNC

CPU

(IC3).

The

9600bps

packet

signal

is

amplified

by

the

AF

amplifier

(IC7),

passes

through

the

audio

filter

(Q6).

It

is

reshaped

to

a

rectangular

wave

by

the

comparator

(IC4).

Then

it

goes

to

the

TNC

ASIC

(IC2),

converts

to

digital

data

and

output

to

the

COM

terminal

at

TNC

CPU

(IC3).

X52-331

SP

AF

AMP

CROSS

POINT

Sw

DE-EMPHASIS

—

AF

AMP

FIC

-~<]-

#

IC100

iF

IC

Q405

Q402

C806

1C804

2804617 2804617

(R) (R)

BUFFER

ic400

Q701

PRI

O

(a)

1702

Ye)

BUFFER

(3700

PRI

O«

2804617

Ko)

TO

X52-331~<—-O.

Fig.6

Audio

circuit

AF

FILTER

Qs

I

2804617

(A)

|

AF

AMP

AF

FILTER

COMPARATOR

TNC

ASIC

TNC

CPU

I

man

CPU

DAT

DATA

IC7

IC4

|}

Ic2

IC3

IC604

O-—>|

TA75w

TA75W

TGT02100

c>

TMT021Q

c>

O1FU

393FU

~;-]

1200bps

|

AF

LPF

AF

LPF

COMPARATOR

|

IC6

TA75S

|

393F

I

X57-586

Fig.7

TNC

unit

circuit

TM-D700A/E

CIRCUIT

DESCRIPTION

2%

RAV

and

RAU

is

de-emphasized

audio

signal.

RDV

and

RDU

is

not

de-emphasized.

RAV

from

IF

mm

Loe]

bot!

bos!

Los!

Lect!

Les}

Le!

Le]

RDV

from

IF

Lt)

Lot!

Le!

Leal

Le

L6I

1)

RAU

from

IF

mm

Lal

Los!

Let!

Le!

Lal

Le!

Lal

Ls)

RDU

from

IF

sn

Lol

Los!

Led

Le!

Lal

1]

BEEP

sound

from

CPU

=“

Ll

Los!

Let!

Led

Leal

Lal

Le!

Le)

VS-3

vocal

sound

of

option

Ll

Los!

Let

Leal

Lal

Ler

Le]

DTMF/1750

signal

from

CPU

Los)

Los! Les!

Los!

Lal

Le!

Le]

DTMF

sound

from

MIC.

Lot!

Lesl

Led

Le!

Lal

Le!

1)

V

Y

VY

V

Y

V

\

Al

AO

To

DTMF

decoder

To

built-in

TNC

To

CPU

for

DCS/CTCSS

decode

'

To

PR9

(DATA

terminal)

y

To

PR1

(DATA

terminal)

To

modulation

line

to

transmit

OTMF/1750

Fig.8

Cross

point

switch

(Audio

switching

circuit)

C702

z

#

To

SP1/INT

SP

side

AMP

To

SP2

side

AMP

TM-D700A/E

CIRCUIT

DESCRIPTION

3.

Transmitter

system

3-1.Modulation

Circuit

The

audio

modulation

input

from

the

microphone

is

amplified

by

|1C801.

The

1200bps

packet

signal

generated

by

the

X52-331

goes

to

iIC801.

The

DTMF

signal

and

1750Hz

tone

signal

(E

type

only)

generated

by

the

CPU

are

also

mixed

by

IC801.

The

modulation

signal

from

the

DATA

terminal

is

switched

by

IC803.

It

is

directed

to

C801

in

1200bps

mode

and

to

1C802

in

9600bps

mode.

The

signal

amplified

by

IC801

is

pre-emphasized

by

Q801

and

Q802,

and

its

level

is

adjusted

PRE-EMPHASIS

AF

AMP

MIC

AMP

C801

NJM2100V4

MIC

[}———

X§2-331

1200bps

DTMF

1750

TONE

AMP

by

IC804,

and

the

resulting

signal

goes

to

each

of

the

VHF

and

UHF

VCOs

as

a

modulation

signal.

The

TONE/CTCSS/DCS

signal

generated

by

the

CPU

is

fed

to

IC802

in

the

same

way

as

the

9600bps

mode

signal

from

the

DATA

terminal.

The

signal

amplified

by

C802

is

distributed

and

the

level

is

adjusted.

The

modulating

signal

goes

to

each

of

the

VHF

and

UHF

VCOs.

The

signal

is

amplified

by

IC300

and

modulates

the

reference

oscillation

circuit.

M62364FP

IC804

‘

AMP

IC300

YUM2904V;

sw

IC802

CPU

TA75501F

Ba

PKD

OF

B

1200bps

IC803

BU4066

BCFV

TONE/CTCSS/DCS

Fig.9

Modulation

curcuit

3-2.Transmitter

circuit

The

VHF

VCO

output

is

amplified

by

3-stage

amplifier,

RF

amplifier

(Q6)

and

driver

amplifier

(Q8,

QQ).

It

is

amplified

to

the

final

output

by

the

power

module.

The

signal

passes

through

antenna

switch

(D14,

D15)

and

low-pass

filter

and

is

fed

to

the

antenna.

The

UHF

VCO

output

is

amplified

by

4-stage

amplifier,

RF

amplifier

(Q304)

and

driver

amplifier

(Q307,

Q309,

and

Q310).

It

is

further

amplified

to

the

final

output

by

the

power

module.

The

signal

passes

through

antenna

switch

(D314),

low-pass

filter

and

high-pass

filter.

Then

it

is

fed

to

the

antema.

ANT

VHF

VCO

RF

AMP

DRIVER

POWER

AMP

_

Y

Ic2

as

~Le

KCH38

2802954

M67746

|

;

AIT

UHF

VCO

POWER

AMP

LPF

HPF

IC302

:

i

—~

Fig.10

Transmitter

curcuit

TM-D700A/E

CIRCUIT

DESCRIPTION

10

3-3.APC

circuit

The

Automatic

transmission

Power

Control(APC)

circuit

has

a

differential

amplifier

(\C200)

that

compares

the

DC

voltage

generated

by

detecting

part

of

the

transmission

output

using

diodes

(VHF:

D18,

D19;

UHF:

D317,

D318)

with

the

reference

D18

:

voltage

output

from

the

CPU.

The

output

signal

is

amplified

by

Q209

and

Q208

and

fed

to

the

power

module

to

keep

transmission

output

constant.

VHF

AW

D19

k

DC

AMP

I

comparator

PCA

DC

AMP

1C200

2Se4617

TA75S01F

(R)

D317

k

t

CPU

UHF

AM,

0318

:

Fig.11

APC

circuit

3-4.Overheating

protection

circuit

To

protect

from

the

thermal

destruction

of

the

power

module,

the

voltage

of

the

thermistor

(TH1)

near

the

power

module

is

monitored

by

the

CPU

(IC604).

If

it

becomes

high

temperature,

the

APC

voltage

is

controlled

to

cool

down

the

temperature.

TM-D700A/E

CIRCUIT

DESCRIPTION

4.PLL

circuit

4-1.Reference

oscillator

circuit

The

12.8MHz

signal

is

generated

by

the

crystal

oscillator

circuit

(IC1

and

1C301)

and

internally

divided

to

generate

5kHz

or

6.25kHz

reference

frequency.

The

12.8MHz

signal

on

IC1

side

is

tripled

by

Q102

to

obtain

the

second

local

oscillator

for

the

A

band.

The

reference

oscillation

circuit

is

also

modulated

to

improve

the

modulation

characteristics

of

the

DCS

and

9600bps

packet

signal

when

it

is

transmitted.

VHF

VCO

CV

IC2

KCH38

CHARGE

PUMP

PLL

Q1

28A1774(S)

iC1

Q2

28C4617(R)

MB1511PFV-GBND

-

i

LD

Co]

12.8MHz

Qi102

28C4649]

x3

{N,P)

38.4MHz

UHF

VCO

CV

|

icso2

HT

KCH28

CHARGE

PUMP

PLL

Q304

28C5108

(¥)

Q300

2SA1774(S)

1C304

Q301

2SC4617(R)

M8151

1PFV-GBND

L

U_________»

ip

CJ

12.8MHz

7

Fig.12

PLL

curcuit

4-2.Phase

comparator

Part

of

the

VHF

VCO

output

is

amplified

by

Q3

and

goes

to

VHF

PLLIC.

Also,

a

part

of

the

UHF

VCO

output

is

amplified

by

Q302

and

goes

to

the

UHF

PLL

IC.

The

pulse-swallow

type

PLL

IC

divides

the

input

VCO

oscillator

frequency

using

the

data

from

the

CPU

(IC604).

It

compares

its

phase

with

that

of

the

reference

frequency

to

make

the

PLL

synthesizer

to

generate

the

desired

step.

4-3.Lock

voltage

(VCO

control

voltage)

The

phase

differencial

comparator,

output

from

the

PLL

IC,

results

in

a

phase

difference

pulse.

This

pulse

is

amplified

by

a

charge

pump

(Q1,

Q2

or

Q300,

Q301),

the

ripples

are

removed

by

a

low-pass

filter

.Then

the

signal

is

supplied

as

the

oscillator

frequency

control

voltage

for

each

VCO.

4-4.Unlock

detection

circuit

When

the

PLL

is

unlocked,

a

low

state

voltage

is

outputed

from

8

of

the

PLL

IC.

This

signal

is

monitored

by

the

CPU

(IC604)

to

control

transmission/reception

‘switching

timing.

5.

Power

supply

circuit

5-1.Microcomputers

and

peripheral

circuits

Reset

and

backup

circuits

The

CPU

reset

signal

is

generated

by

detecting

a

rising

edge

of

the

M5C

line

voltage

with

the

reset

IC

(IC601).

The

TNC

reset

pulse

is

generated

by

Q3

at

a

rising

edge

of

VDD.

When

the

voltage

supplied

to

the

transceiver

decleases

and

the

B

line

voltage

falls

below

the

detection

voltage

of

the

voltage

detection

circuit

(Q604,

D604),

the

CPU

(IC604)

detects

it

through

the

interrupt

pin,

stores

data

in

the

EEPROM

(IC602),

and

shuts

the

power

off.

5-2.Voltage

detection

processing

The

CPU

(iC604)

monitors

and

process

various

voltage

status

at

iC604

A/D

ports.

The

squelch

voltage

is

input

from

the

IF

IC

and

a

change

in

the

noise

voltage

is

detected

to

control

squelch.

The

S

meter

voltage

is

input

from

the

IF

IC

to

control

the

S

meter

display.

The

thermistor

voltage

(temperature)

and

the

remote

control

microphone

key

operation

are

also

detected

throuyh

the

A/D

port.

11

TM-D700A/E

12

CIRCUIT

DESCRIPTION

5-3.Serial

control

The

CPU

(IC604)

controls

the

panel

unit

(X54-329

unit)

through

a

synchronous

serial

communication.

The

CPU

(IC604)

controls

the

TNC

CPU

(IC3:

X52-331

unit)

through

9600bps

serial

communication.

In

APRS

mode,

settings

and

transmission

data

are

sent

from

the

CPU

(IC604)

to

the

TNC

and

received

packet

data

is

sent

from

the

TNC

to

the

CPU

(1C604).

In

the

packet

transmission

mode,

a

personal

computer

is

connected

with

the

CPU

(IC604)through

the

RS-

232C

driver

(IC600).

The

data

from

the

personal

computer

is

received

by

the

CPU

(IC604)

and

transferred

to

the

TNC

CPU(IC3).

The

received

packet

data

is

sent

from

the

TNC

CPU(IC3)

to

the

main

CPU(IC604),

which

transfers

the

raw

data

to

the

personal

computer.

In

the

personal

computer

control

mode,

the

CPU(IC604)

receives

and

processes

data

from

the

personal

computer

and

sends

the

processed

data

back

to

the

personal

computer.

GPS

TNC

rs

X62-331

COM

[Personal

computer]

-«———+]

CPU

IC604

DISPLAY

X54-329

Fig.13

Structure

of

non-synchronized

serial

communication

5-4.Narrow/Wide

switching

circuit

(TM-D700E

only)

The

receiver

band

width

can

be

switched

between

narrow

and

wide

by

selecting

IF

ceramic

filters,

CF100

(narrow)

and

CF101

(wide)

on

the

A

band

with

a

switching

circuit(Q100,

Q101,

D100,

D101).

On

the

B

band,

the

receiver

band

width

can

be

also

switched

between

narrow

and

wide

by

selecting

IF

ceramic

filter

CF400

(narrow)

and

CF401

(wide)

with

a

switching

circuit

(Q400,

Q401,

D400,

D401).

The

transmitter

deviation

can

be

switched

between

narrow

and

wide

by

setting

the

electronic

variable

resistor

(IC804)

on

the

deviation

adjustment

point.

It

is

controlled

from

the

CPU

(IC604).

IC100

TA31136FN

i

|

CF

WIDE

CF101

(ow

CF

NARROW

(o0")

CF100

IC400

TA31136FN

J

|

CF

WIDE

CF401

(+)

CF

NARROW

CF400

D400

Fig.14

Narrow/Wide

Switching

circuit

TM-D700A/E

CIRCUIT

DESCRIPTION

6.

AF

Signal

System

6-1.

Beep

circuit

and

mute

circuit

A

beep

sound

is

generated

by

the

CPU

(C604)

and

goes

to

The

signals

output

from

the

electronic

volume

(IC804)

are

cross

point

switch

(IC702).

input

to

the

speaker

switching

circuit

and

go

through

the

audio

This

signal

is

switched

by

the

cross

point

switch

(IC702)

and

mute

circuit

(Q804

and

Q805).

Then

it

is

input

to

the

power

amp

are

input

to

the

electronic

volume

(IC804).

While

the

beep

(1C806).

signal

is

output

from

the

microprocessor,

audio

signals

for

each

band

are

muted

by

the

cross

point

switch

(IC702)

with

the

serial

data

from

the

microprocessor

(IC604).

ELECTRONIC

VOLUME

CROSS

POINT

SW

MUTE

POWER

AMP

IC806

IC

702

A014

IC

804

R857

R874

13

B

J802

RAV

>—

LAM,

vy

gos

>4+

yy

IC

808

7

1

eo

Z

a

pad

A00

R858

7

3

MUTE

CN80)

RAU

>—

Wyo

|g

|

875

1

6

oO

WA

Q805

IC

807

5

g

eo

a

J801

ise)

&

a};

D803

z

fond

wl

s

Wi

5

CPU

1q—q—

;

IC

604

<4

<=

o=>

fom

<=

ae

Fig.15

Beep

circuit

and

mute

circuit

13

TM-D700A/E

CIRCUIT

DESCRIPTION

6-2.

Speaker

Switching

Circuit

There

are

two

speaker

jacks,

J801

and

J802.

The

AF

The

AF

signal

output

combinations

are

as

in

the

speaker

signals

can

be

output

in

various

combinations

matching

the

combination

table

on

the

below.

internal

speakers.

A071

|

400

When

no

external

speaker

is

connected

to

J801,

Pins

5

of

intemal

speakers

only

intemal

speaker

the

multiplexer

(IC807,

1C808)

go

low,

the

AF

signals

AO

0

and

7

extemal

speaker

(J802)

external

speaker

AO

1

are

added

and

input

to

the

power

amp

(C806).

1

external

speaker

(J801)|

Internal

speaker

|

external

speaker

When

an

external

speaker

is

connected

to

J801,

Pins

5

of

2

external

speaker

external

speaker

|

external

speaker

the

multiplexer

(IC18)

go

high

and

AO

0

and

AO

1

are

input

separately

to

the

power

amp.

Table7

Speaker

combination

table

ELECTRONIC

CROSS

POINT

SW

VOLUME

MUTE

POWER

AMP

Ic

702

A014

tC

804

Re57

R874

13

ICB06

s802

Z

so

[5_

Ress

|_?

MUTE

CN800

8

RAV

>—

W

AMY

QB04

>

394

IC

808

7

|

i

|

AOO

—

RAU

>—

AM,

1

6

ie

1

6

Q805

-

>—

IC

807

5

m

J801

=

S

oye

D803

x

ul

=

ws

=

CPU

qi

:

IC

604

<4

_

s=

“he

Fig.16

Speaker

switching

circuit

6-3.

Microphone

Key

Input

The

microphone

UP/DOWN

and

function

keys

are

pressed,

an

interrupt

is

generated

and

the

microprocessor

is

connected

to

the

microprocessor

analog

input.

The

voltage

awoken

from

stop

mode.

However,

with

the

TM-D700/VE,

the

when

a

key

is

ON

operates

the

corresponding

function.

Also,

power

ON/OFF

switch

function

can

be

registered

to

the

PF

key

the

key

input

interrupt

circuit

is

for

switching

the

power

ON/OFE

on

the

microphone.

with

the

microphone.

When

the

DOWN,

MR,

and

PF

keys

are

M

5C

MICRO

PROCESSOR

5C

MIC

Ses

oe

IC

604

8=SsSS=

RB04

MIC

PTT

AN

vV¥

ag

3

R803

Ir

°

MIC

UP

AN,

I

g

R805

7],

MIC

DW

WW

wool

|

ta

|

“5

cee

=

4]

$2

re

|

06000

INT3

<

4

™

ef

NOW

4 4

a=

Assesses

Icsoo

777

7

E

a

Z2

+4

0

ce

he

KEY

INPUT

INTERRUPT

CIRCUIT

a

2

FS

3S

>

=

Oo

Fig.17

Microphone

key

input

circuit

14

TM-D700A/E

CIRCUIT

DESCRIPTION

7.

Data

Terminal

and

Peripheral

Circuits

J700

(data

terminal)

is

the

data

communications

terminal

on

the

front.

It

handles

transmission

control,

data

input/output,

and

squelch

signals.

There

are

two

data

communications

modes:

9600bps

mode

and

1200bps

mode.

9600bps

mode

communications

are

FAST

FM

mode

of

SSTV,

GMSK

and

G3RUH

packet

communications.

Unlike

with

1200bps

AFSK,

with

this

type

of

high-speed

modulation,

frequency

modulation

is

carried

out

after

the

digital

base

band

signals

(rectangular

wave)

are

passed

through

a

band

limiting

filter.

For

9600bps

GMSK

for

example,

compared

to

4800Hz

signals

(nearly

sine

wave

signals

passed

through

a

filter),

these

signals

have

a

hissing

sound

like

digital

modulation

when

listened

to

by

ear.

Different

7-1.

Transmission

signals

Transmission

modulation

signals

enter

from

PKD

of

the

data

terminals

(J700).

The

path

to

the

modulation

depends

on

whether

communications

are

1200bps

or

9600bps

mode.

For

1200bps

mode,

the

transmission

modulation

signals

pass

through

the

analog

switch

(IC803),

and

are

input

to

1C801

(Pin

6).

The

signals

pass

through

the

pre-emphasis

(Q801,

Q802),

are

adjusted.by

the

electronic

volume,

and

are

input

to

the

VCO.

types

of

modulation,

such

as

GMSK

and

G3RUH,

are

distinguished

by

the

type

of

band

limiting

filter.

fin

meine

Specification

bps

switching

1200bps

9600bps

1

PKD

'Modulation

input

40mVp-p

2Vp-p

Frequency

shift

3+0.5kKHz

2.2+0.5kHz

Output

level

500mVp-p/10kQ

4

PR9

:

Always

output

during

reception

5

PRI

Output

level

500mVp-p/10kQ

Not

output

when

squelch

off

Table8

DATA

terminal

input/output

level

For

9600bps

mode,

the

transmission

modulation

signals

pass

through

IC803

and

amplified

by

the

tone

amp

(IC802).

Then

it

is

adjusted

by

the

electronic

volume,

and

are

input

to

the

VCO.

The

frequency

shift

depends

on

the

input

signal

level,

so

there

is

an

amplitude

limiting

circuit

(D702,

D703)

to

hold

the

signal

below

4

Vp-p

to

avoid

extreme

shifts.

Thanks

to

this

circuit,

the

PKD

signal

does

not

go

above

4

Vp-

Pp

and

the

frequency

shift

does

not

fluctuate

extremely.

ANALOG

SW

IC

803

eats

PKD

©

C

Sac

o-~<f-

COMPUTER

PRI

O~

PRI

O

PKS

oe

eeicie

IC703

BUFFER

aes

AMP

IC801

BUFFER

IC

802

TA75SOIF

ELECTRONIC

VOLUME

IC804

PRE-EMPHASIS

vco

Q801

Q802

Z

2804617

28C4617

H———->

VCO

(S)

Fig.18

Transmission

signals

15

TM-D700A/E

CIRCUIT

DESCRIPTION

16

7-2.

Reception

signals

PR9Q

is

the

9600bps

data

communications

reception

output.

It

outputs

the

FM

detection

circuit

output

(RD

signals)

through

a

buffer

amp

(Q700).

These

signals

are

always

output

whether

the

squelch

is

open

or

closed.

PR1

is

the

1200bps

data

communications

reception

output.

It

outputs

the

FM

detection

circuit

output

(RA

signals)

through

a

buffer

amp

(Q701).

Output

is

controlled

with

the

cross

point

switch

(IC702)

according

to

whether

squelch

is

open

or

closed.

7-3.

Squelch

signal

output

circuit

The

squeich

circuits

is

input

to

the

TNC

to

prevents

conflicts

from

occurring

between

simultaneous

receive

mode

and

transmit

mode

traffic

during

packet

communications.

(only

during

1200bps)

The

signal

is

output

from

15

of

1C703

to

the

data

terminal.

The

logic

is

as

shown

in

the

Table

below.

8-3.

Display

circuit

The

TM-D700A/E

display

section

is

a

188x54-dot

full-dot

matrix

LCD

controlled

by

two

LCD.

As

shown

is

Figure

19,

the

master

IC

(IC2)

side

is

connected

to

22

common

dots

and

88

segment

dots

and

the

slave

IC

(IC1)

side

is

connected

to

33

common

dots

and

100

segment

dots.

The

LCD

drive

voltage

is

obtained

by

raising

the

power

supply

voltage

(5V)

within

the

IC.

L:

SQ

CLOSE

H

:

SQ

BUSY

SQC

terminal

output

CoM

LCD

188

x

54

(dot)

33

COM

sar

SEG

LCD LCD

Driver

Ic2

IC1

at it

(J700

6)

8.

Panel

Section

(LCD

ASSY:

B38-0829-05)

The

panel

section

controls

serial

communications

with

the

main

unit

control

section,

the

key

input

circuit,

the

display

circuit,

and

the

dimmer

circuit

through

the

microprocessor

(IC4).

8-1.

Serial

communications

circuit

A

buffer

amp

is

inserted

in

order

to

protect

the

microprocessor

ports.

8-2.

Key,

Volume

input

circuit

Circuits

to

operate

the

panel

section

keys

are

connected

to

each

microprocessor

port.

The

PSW

key

is

pulled

up

and

the

other

keys

are

pulled

up

with

software

within

the

microprocessor.

Rotary

encoder

operating

circuits

are

connected

directly

to

the

microprocessor.

The

control

divides

the

power

supply

voltage,

reads

the

A/D

port

of

the

microprocessor,

and

transfers

that

data

to

the

main

unit.

Microprocessor

IC4

X54-329

Fig.19

Display

circuit

8-4.

Dimmer

circuit

The

dimmer

circuit

switches

the

lamp

brightness

to

one

of

four

levels

or

OFF.

(See

table)

The

current

flowing

to

the

LEDs

is

varied

by

selecting

resistors

from

R8

to

R14.

Dimmer

level

DIM

O

DIM

1

DIM

2

DIM

3

1

H

L

20

L

H

L

3

L

H

L

4

L

L L

H

OFF

L L L

L

Table9

Port

logic

C4

Microprocessor

R13

ov

LCD

ASSY

DIM3

Q8

p

R14

AYA

8

fen]

DIM2

Q7

Ri2.

a

t+

a

DIM1

+

--

R9

Q4

Q5

R10

R8

DIMO

Q

Fig.20

Dimmer

circuit

TM-D700A/E

SEMICONDUCTOR

DATA

30622M8759GP

(PANEL

UNIT

CPU

:

IC4)

No./Port

Name|

I/O

Function

Active!

[Pin

No.|Port

Name}

I/O

Function

Active}

1

KYCALL|

|

|[CALL]

key

input

L

36

NC

|

Not

used

(VCC)

2

KYVFO

|

[VFO]

key

input

L

37-41

NC

|

Not

used

3

KYMR

|

[MR]

key

input

L

42

RD

-

|

Read

signal

4

KYPM

|

[PM}

key

input

L

43

NC

-

|Not

used

5

KYMNU

|

{MENU}

key

input

L

44

WR

-

|

Write

signal

6

BYTE

|

Select

8-bit

data

bus

(5C)

45

LCDAO

|

O

|LCD

Address

0

7

CNVSS

|

Select

memory

expansion

mode

46

|LCDCD2|

O

|LCD

chip

select

2

8

FUNC

|

|{F1]

key

input

L

47

|LCDCD1;

O

|LCD

chip

select

1

9

KYF1

|

[F2}

key

input

L

48

CSO

-

|

Flash

ROM

chip

select

signal

10

RESET

|

Reset

49

A19

-

|Not

used

(Open)

14

XOUT

O

{Clock

output

50-59

|

A18-9

~

|

Address

bus

18-9

12

vss

-

|GND

60

vcc

-

|

Power

input

13

XIN

|

Clock

input

61

A8

-

|

Address

bus

8

14

Vcc

-

|

Power

input

62

vss

-

|

GND

15

NMI

(I)

|

Not

used

63-70 A7-0

-

|

Address

bus

7-0

16

INT2

|

Interrupt

from

serial

input

port

71-78

|LCDD7-0)

I/O

|

LCD

data

bus

7-0

17

INT1

|

Encoder

pulse

1

input

79-86

D7-0

-

|

Data

bus

7-0

18

INTO

!

|

Encoder

pulse

2

input

87

LCDRD

|

O

|LCD

read

terminal

19

KYF2

|

|{F3]

key

input

L

88

LCDWR

|

O

/LCD

write

terminal

20

KYF3

|

[F4]

key

input

L

89

LCDRES|

O

/|LCD

reset

21

NC

|

Not

used

(VCC)

90

PWR

1

|

[POWER]

key

input

(key

interupt)|

22

NC

|

Not

used

(VCC)

91

B-AFVR|

|

|Bband

R

AF

VOL

(A/D)

23-26

|

DIM3-0

|

O

|

Dimmer

output

92

B-SQVR|

|

|B

band

R

SQ

VOL

(A/D)

27

PSW

O

|

Power

SW

control

output

93

A-AFVR|

|

|AbandL

AF

VOL

(A/D)

28

BS

O

|

Beat

shift

output

94

AVSS

-

_|

Analog

power

input

(GND)

29

NC

|

Not

used

(VCC)

95

|

A-SQVR|

{|

|AbandL.

SQ

VOL

(A/D)

30

NC

|

Not

used

(VCC)

96

VREF

-

|

A/D

reference

voltage

input

31

KYF4

|

|[F5]

key

input

L

97

AVCC

-

|

Analog

power

input

(5C)

32

KYF5

|

[F6]

key

input

L

98

MHz

!

|

[MHz]

key

input

33

TXDO

OQ

|

Serial

port

for

connecting

to

TX-RX

uint

99

B_KEY

|

|(B

BAND

SEL]

key

input

34

RXDO

|_|

Serial

port

for

connecting

to

TX-RX

uint

100

|

ALKEY

;

|

|[A

BAND

SEL]

key

input

35

NC

|

Not

used

(VCC)

17

TM-D700A/E

SEMICONDUCTOR

DATA

78F4218GCJVZC

:

E,

M4

(TX-RX

UNIT

CPU

:

IC604)

T8F4218GCJVYC

:

K

No.;

PortName

|

VO

Function

Active

Level

1

UPLLEN

QO

|U

PLL

Enable

output

MB1511PFV

2

VPLLEN

O__|V

PLL

Enable

output

MB1511PFV

3

PSW1

O__|

Transceiver

main

power

switch

(SBSW)

H:ON

4

PSwe

O__|

Transceiver

main

power

switch

(CPU)

L:ON

5

MIC

MUTE1

O

|

MIC

MUTE

1

(MIC

input)

H:Mute

H

6

MIC

MUTE2

O

|

MIC

MUTE

2

(SPF

out)

H:Mute

H

7

RST

SW

|

Hard

reset

switch

Normal:L

8

SHIFT

O

|

Clock

shift

Normal:L

9

VDD

-

Positive

power

—

10

=|X2

O

|

System

clock

11.0592MHz

—

11

x1

|

System

clock

_

12

=|

VSS

-

_|

GROUND

—

13.

|

XT2

-

|

OPEN

—

14

=|

XT1

:

Connect

to

VSS

_

15

|

RESET

|

System

reset

H:Reset

H

16

|

BACKUP

{

Power

voltage

fall

detection

interrupt

H:Back

up

mode

H

17

CTS2

|

UART

control

signal

input

from

PC

H

18

|

START

|

H:

Trigger

SSC

turns

on

for

a

certain

time

H

19

RXD3(INT)

{

UART

control

signal

input

from

THC

20

sis

I

UART

control

signal

input

from

STN

panel

H

21

MUTES

QO

__|

DTMEF/1750Hz

mute

output

H:Mute

22

MIC

PWR

I

Remote

control

keys

DOWN,

MR,

PF,

power

switch

L

23

|

AVDD

-

Connect

to

VOD

_

24

|

AVREF

-

Connect

to

VDD

—

25

|

THP

!

Temperature

protection

—_

26

SQ14

l

Noise

level

A/D

input

(VHF

IF)

—

27

=|Swi4

I

S

meter

level

A/D

input

(VHF

IF)

—_

28

$Q43

I

Noise

level

A/D

input

(UHF

IF)

—_

29

=|

SM43

I

S

meter

level

A/D

input

(UHF

IF)

_

30

P_DWAN

I

Remote

control

key

A/D

input

UP,

CALL,

VFO

—

3t

P_UPAN

i

Remote

control

key

A/D

input

DOWN,

MR,

PF

_

32.

|

TOIN

|

CTCSS,

DCS

input

33

|

AVSS

.

Connect

to

VSS

—

34

1750/DTMF

OQ

|BEEP/DTMF

sound,

1750Hz

tone,

D/A

output

35

TONE

QO

|

D/A

output

for

SUB

TONE

36

|

AVREF

-

Connect

to

VDD

—_

37

RxD2

I

UART

data

input

from

PC

L

38

|

TxD2

OQ

__|UART

data

output

to

PC

L

39

=|

RTS2

O__|

VART

control

signal

output

to

PC

—

40

RxD1

I

Panel

UART

data

input

L

41

TxD1

O__|UART

data

output

to

panel

L

42

{|TNCS

I

TNC

installation

judgment

Liinstallation

43

|

TNCPLL

I

TNC

PLL

lock

signal

H

44

_

|STS

OQ

__{Level

converter

power

switch

L:ON

H

45

Rxd3

I

UART

data

input

from

TNC

46

NC

I

of[—

—

47

NC

bof

—

48

STALED

I

Packet

transmission

storage

detection

L:

Storage

L

49

GPSLED

I

GPS

receiver

receive

state

L:

No

measurement;

H/L:

Measurement

H

50

PKSD

I

Transmission

request

DATA-PKS

L:Send

from

DATA

L

51

SQC1

O__|

DATA-SQC

squelch

signal

output

H;Open

H

52

CONLED

l

Packet

transmission

connect

detection

L:Connect

L

53

SQc2

O__|

INT,

TNC,

SQC

squelch

signa!

output

H

54

TNC9600

i

TNC

speed

H:9600

L:1200

55

CTS3

|

UART

transmission

inhibition

signal

input

from

TNC

—_H:

Transmission

control

56

PKSI

I

Internal

TNC

transmission

request

H:Transmission

57

MBLED

I

Message

board

L:Connect

58

MALED

I

Message

to

local

station

59

SW_TNC

O__|

TNC

power

control

L:ON

60-63

|

SIMO-3

|__|

Destination

judgment

bit

0-3

64

CH

l

Destination,

channel

display

mode

L

65

PTT

I

{PTT]

key

input

L:Push

down

L

18

TM-D700A/E

SEMICONDUCTOR

DATA

78F4218GCJVZC

:

E,

M4

(TX-RX

UNIT

CPU

:

IC604)

jPin

No.|

Port

Name

|

W/O

Function

Active

Level

66

|REPTR

I

L

67

|

CLK

OQ

__|

Common

clock

(XSW,

2099,

E2P,

DAC,

VPLL,

UPLL,

RTC)

68

|DATA

OQ

__|

Common

data

(XSW,

2099,

E2PS!,

DAC,

VPLL,

UPLL)

69

XSW_LD

O

|

Cross

Point

SW.

LOAD

70

|

2099LCK1

O

|

2099LCK

71

2099LCK2

QO

|2099LCK

72

=|VSS

-

_|GND

—

73.

|

DTMFCK

O__|

DTMF

CLOCK

LC73881M

74.

|DTMFDT

|

DTMF

DATA

75

DTMFDET

I

Data

detection

76

|

VS3NAR

O

|

VS-3NAR

77

|

VS3RST

QO

|VS-3

RESET

78

{|VS38CS

O

_|VS-3

Chip

Select

79

|

VS3DT

O__|VS-3

DATA

80

|

VS3CK

O

|VS-3

CLK

81

VDD

-

Positive

power

—_—

82.

|

RTCE

O__|

RTC

Chip

Select

RS5C321A

83

|

RTCSIO

VO

_|

RTC

data

input/output

84

DA_EN

OQ

__|DAC

Enable

output

M62364FP

85

|NC

86

TxD3

OQ

__|UART

data

output

to

TNC

87

|BEEP

OQ

__|

Beep

sound

output

88

{iNC

89

RATS3

Q__|UART

Transmission

inhibition

signal

output

to

TNC

—_H:

Transmission

control

—_

90

|E12

oO

91

E96

oO

92.

{112

oO

93

«196

ce)

94

VPP

|

Flash

writing

10V

application

Normal:L

pulse

95

|NC

96

E2SO0

|

Data

input

line

for

EEPROM

(EEPROM

SO

pin)

97

E2cs

Q

|

EEPROM

Chip

Select

L:Enable

98

|

SU43

O

__|UHF

PLL

speedup

contro!

output

(H:ON)

;

99

|

VPLLUL

l

V

UNLOCK

detection

H:Lock

H

100

|

UPLLUL

I

U

UNLOCK

detection

H:Lock

H

19

TM-D700A/E

DESCRIPTION

OF

COMPONENTS

TX-RX

UNIT

(X57-586X-XX)

20

Ref

No.|

—

Application/Function

_|

Operation/Condition/Compatibility

RefNo.|

ApplicatiowFunction

|

Operation/Condition/Compatibility

IC1

PLL

IC

VHF

PLL

Q203

RF

amp

VHF

IC2

vco

VHF

Q204___|

Change

switch

VHF

IC3

Power

Module

VHF

(Main

Body)

Q205

RF

amp

VHF

IC4

Power

Module

UHF

(Main

Body)

Q207

_|

AGC

control

VHF

IC100

|IFIC

A

band

Q208

|

APC

control

VHF/UHF

1C101__|

AF

select

VHF

Q209

|

APC

control

VHF/UHF

IC200__|

APC

voltage

comparison)

VHF

Q210

RF

amp

VHF

IC300

|

Modulation

signal

amplification)

VHF

Q300__|

Charge

pump

UHF

IC301

|

PLLIC

UHF

PLL

Q301

Charge

pump

UHF

1C302.

|VCO

UHF

Q302__|

PLL

comparison

input

amplifier

|

UHF

1C303__|

Prescaler

UHF

Q303

_|

Ripple

filter

UHF

1C304__|

Speed

up

switch

Q304

|

VCO

output

amplifier

UHF

IC400

|

IF

IC

B

band

Q305

_|

Doubling

circuit

UHF

LO

IC501_|AF

PA

Q306

__|

Power

switch

UHF

Prescaler

IC600_

|

RS-232C

driver

Q307

Drive

amplifier

UHF

IC601__‘|

Reset

Q308

|LO

amp

UHF

IC602

|

EEPROM

Setting,

memory

Q308

|

Drive

amplifier

UHF

IC603_

|

AVR

Q310

|

Drive

amplifier

UHF

1C604

|

Control

microcomputer

Q400_

‘|

Change

switch

UHF

Narrow/wide

'C700

|

DTMF

decod

(TM-D700E

ONLY)

IC701__|CTCSS,

DCS

filter

Q401

Change

switch

UHF

Narrow/wide

IC702

{Cross

point

switch

(TM-D700E ONLY)

IC703

|

Buffer

Q402__|

AF

amp

UHF

IC800

|

Comparator

Q404

_|

Power

switch

R5U

1C801__|

MIC

amp

Q405

|

AF

amp

IC802_

|

AF

amp

Q406

{IF

amp

IC803

|

AF

select

switch

Q500__|

IF

amp

IC804

|

Electronic

control

Q501

1st

Mixer

UHF

C805

|

DC

amp

APC,

BPF

Q502

ist

Mixer

UHF

(C806

|

Audio

amp

(Main

Body)

Q503

___|

Mixer

UHF

'C807

|

AF

switch

Q505

RF

amp

UHF

IC808__|

Change

switch

SP1/SP2

Q506__|

RF

amp

UHF

1C900__|

Expansion

port

Q507__|

RF

amp

UHF

1C901__|

Expansion

port

Q508

|

RF

amp

UHF

IC903

|8V

AVR

8C

(Main

Body)

Q509

RF

amp

UHF

IC904_

|AVR

Q600__|

Power

switch

STS

Qi

Charge

pump

VHF

Q601__|

Reset

switch

Q2

Charge

pump

VHF

Q603

__|

Power

switch

SM5C

Q3

PLL

comparison

input

amplifier

|

VHF

Q604

__|

System

down

detection

Q4

Ripple

filter

VHF

Q700__|

AF

amp

PR9

Q6

VCO

output

amplifier

VHF

Q701_

|

AF

amp

PR1

Q7

LO

doubling

circuit

VHF

Q702__|

Reset

switch

Q8

Drive

amplifier

VHF

Q800

|

Microphone

mute

Q9

Drive

amplifier

VHF

Q801__|

Preemphasis

Q10

Switch

Q802

|

Preemphasis

Q11

Switch

Q803

_|

Microphone

mute

Q100

=|

Change

switch

VHF

Narrow/wide

Q804__|

Mute

(TM-D700E

ONLY)

Q805__|

Mute

Q101

Change

switch

VHF

Narrow/wide

Q807

|

Mute

(TM-D700E

ONLY)

Q900__|

Fan

switch

Q102

_|

Doubling

circuit

VHF2nd

LO

doubling

circuit

Q903__|

Power

switch

T8V

Q103___|

Power

switch

R5V

Q904

|

Power

switch

T8uU

Q104

|

Power

switch

R5AM

Q905__|

Power

switch

R8V,

R8U

Q105

|

iF

amp

VHF

Q906_|

Power

switch

RM43,

RM80

Q106

IF

amp VHF

Q907

|

Power

switch

RS14,

RM30

Q107

IF

amp

VHF

Q308

Power

switch

R8UA,

RM22

Q108

[AF

amp

VHF

Q909__|

Power

switch

RS43,

RM14

Q110

[AF

amp

VHF

Q910_

|AVR

PB

Qi11

AGC

amp

VHF

Q911_

|

AVR

PB

Q112__

[iF

amp

VHF

Q912__|

Power

switch

SB

Q113.

[AGC

Q913__|

Power

switch

PB

Q200

ist

Mixer

VHF

Q914__|

Power

switch

SB

Q201

ist

Mixer

VHF

Q915__|

Power

switch

SBA

Q202.

|

RF

amp

VHF

Q916

|

Power

switch

SBA

Kenwood TM-D700A User manual

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