Kenwood TS-670 User manual

KENWOOD
TS-670
INSTRUCITON MANUAL
Thank you for buying the TS-670 amateur band
transceiver. This equipment has been carefully
engineered and manufactured to rigid quality stan-
dards and should provide satisfactory and depen-
dable operation for many years.

MISTANDARD ACCESSORIES
The following parts are supplied with TS-670 as stan-
dard accessories.
° DC power cord (E30-1648-05)
© Fuse (FO5-4022-05).............00.
° Instruction manual (B50-41 15-00)
° Warranty card (for USA)
° Microphone (option for USA) ...
MCONTENTS
a
. TROUBLESHOOTING.........
. ACCESSORIES ............0006
. INTERNAL VIEWS .............
. BLOCK DIAGRAM.............
. SPECIFICATIONS.... OANODOARWHN
SFEATURES 5c. cenisesdeceutecbessecasase
. PREPARATION BEFORE USE........
. CONTROLS, INDICATORS AND CONNECTORS
OPERATION viissiisissaccsyecxxecdscsvens
° After unpacking
© Shipping container
Save the box and packing in the event your unit
needs to be transported for remote operation,
maintenance, or service.
¢ The following explicit definitions apply in this
manual:
i
If disregarded, inconvenience only, no risk of equipment
damage or personal injury.
Equipment damage may occur, but not personal injury.
[xine

1. FEATURES
. Built-in 4 bands, 7 MHz-50 MHz:
Three HF bands, 7 MHz, 21 MHz, 28 MHz and one
VHF band, 50 MHz are provided. Band selection is ac-
complished by the UP/DOWN switch. Each band
covers 1 MHz. Operating frequency can be con-
tinuously varied by the main tuning control.
. All mode operation
Applicable to SSB, CW, FM (option) and AM (AM filter
optional) modes. The transceiver is capable of
operating in SSB, CW, FM (option) and AM (optional
AM filter).
. 500 kHz-30 MHz general coverage receiver:
With the optional GC-10, the TS-670 works as a
general coverage receiver (except for the frequencies
near 8.83 MHz).
. Various frequency control functions:
° Selectable tuning rate, 10 Hz steps or 100 Hz
steps for AM, SSB and CW, 10 kHz and 100 Hz for
FM.
° Two different VFO’s are built into the set allowing
cross-band operation.
° 80 channel memory for band-mode information.
° Pushbutton frequency entry is also possible using
the O~9 keys.
° Provided with two kinds of scanning function.
° Memory channels are selectable with the main tun-
ing control.
10.
11.
. Lithium battery memory backup.
. Built-in all mode squelch circuit.
. An IF shift circuit is provided to allow shifting the IF
passband, to aid in reducing adjacent channel in-
terference. Filter: wide/narrow selectable.
. Built-in peak power meter.
. Continuously variable TX power.
CW semi break in circuit
2-color fluorescent display tube.

==2. PREPARATION BEFORE USE
@ 2-1 PRECAUTIONS ON INSTALLATION M 2-2 PREPARATION BEFORE OPERATION
Before operating the equipment, the following preparation
is required. Before connecting the power supply, carry out
the following.
(1) First, to familiarize yourself with the operation of this
Nex OH 3h equipment, read the instruction manual thoroughly. If
SSS you are using the transceiver for the first time, practice
Avoid
direct
sunlight,
and
select
a
dry,
well
ventilated
loca-
while
reading
the
manual,
by
actually
operating
each
tion.
switch
and
control
with
the
power
switch
OFF.
After
you have mastered the transmit procedure, you may
begin actual operation.
NOTE:
Grounding
Making a good earth connection is important for preven-
Since the heat sink is on the rear panel, avoid placing the | ting dangers such as electric shock and for emitting a
equipment with the bottom and rear sides close to a wall or | high quality signal with minimum spurious radiation.
desk. Bury a commercially available ground rod or copper plate
under the ground and connect it to the GND terminal of
TS-670. A thick wire cut as short as possible, should be
used for the connection.
A city water pipe cannot be used as a good earth in
some cases.
Never use a gas pipe or electrical conduit pipe.
When installing the equipment in an automobile, ensure
adequate ventilation. Install the equipment in a location
where the rear does not make direct contact with the seat,
and is not directly exposed to vibration.
CAUTION:
Power supply
The standard operating voltage of TS-670 is 13.8 V
and the current is 4 A. Do not use a power supply (both
fixed and mobile) that provides over 16 V with the
power switch of TS-670 turned off.
Operation under such a condition will void the warranty.
7) Also, do not use a power supply that does not supply at
{
i
t \ t J
& : least 12 V in transmit or receive. Use of such a supply
may cause the performance of the TS-670 to suffer.
Avoid installing the equipment in front of the car heater air
outlet.
The
standard
operating
voltage
of
the
equipment
is
13.8
V.
Do
not
operate
below
12
V
or
over
16
V.

3. CONTROLS,
INDICATORS
AND
CONNECTORS
Meter switch
final stage power
transmission.
ampli
tion.
During SSB operation,
adjust the MIC control so that the
meter is within the ALC zone. Similarly,
adjust the CAR control for CW opera-
During
transmission,
the
meter
switch
deter-
F
mines
meter
function.
The
switch
selects
bet-
"
ween:
Meter
;
n
RF:
In
this
position,
the
meter
monitors
the
Works
as
an
S-meter
in
receive,
in-
RF output of the transceiver. dicating the signal strength, and_in-
ALC:
The
meter
monitors
the
output
of
the
dicates
the
RF
power
or
ALC
level
in
SPLIT indicator
transmit. These two modes are selected SS
Lights when the SPLIT switch is ON.
by the meter switch.
ifier during
[
VFO indicator
Indicates VFO (A or B).
POWER switch
Turns the TS-670 on (.™)
[
[
MCH (Memory Channel) display ——
Indicates memory channels (1-79) or
NB (N
and off (ML).
| Set thi
short duration pulse noise.
program scan (P).
loise Blanker) switch
is switch to ON to elimi
inate
VOICE switch
Audible announcement
of frequency when the
VS-1 is installed.
ATT (Attenuator) switch
Set this switch to ON to at-
tenuate the input by approx-
imately 20 dB.
STANDBY switch
REC: Indicates recep-
tion mode.
SEND: Indicates trans-
mission mode.
NAR/WIDE filter selector
Selects the passband width
when optional filters are install-
ed.
Connect
this terminal.
|
MIC (Microphone) connector
the microphone
to
[
PHONES jack
Connect the headphone to this jack.
MODE switch
Selects LSB, USB, CW, AM
and FM (option) modes.
Numeric keypad
Used to input numeric data for
frequency etc. See page 18 for
additional information.
|
Scan/memory
keyboard
Indicators
-
Used
to
select
memory
scan,
pro-
ONAIR
:
L
gram
scan,
VFO
or
memory
opera-
F.LOCK
:
Li
tion and for memory input. See page
18 for additional data.
F.STEP

requency display
\dicates the operating frequency to the
[
RF PWR (RF Power) control
Varies the transmit power in SSB, CW and FM modes.
RIT display
Indicates the RIT frequency with the a
earest 100 Hz.
Es ON.
This is
MIC (Microphone Gain) control
Adjust
the
microphone
gain
in
SSB
and
AM
modes.
Turn
clockwise
to
increase
the
gain.
SQUELCH control
This
is
a
squelch
adjusting
control.
Turn
clockwise
to
increase
squelch.
This
control
can
be
used
in
all
modes.
RF (RF Gain) control
This
is
used
to
adjust
the
gain
of
RF
amplifier
stages
of
the
receiver.
Normally
this
control
is
set
for
maximum
gain, full clockwise.
AF (Audio Gain) control
This is used to adjust the audio
volume. Set this control to the
desired position.
‘—IF shift control
effective for eliminating in-
terference from the near-by stations or for
adjusting the receive tone quality. |
RIT control
(mum BAND TMHz
a
al
le
28 60
[
RIT switch
This
is
the
ON/OFF
switch
of
the
RIT circuit.
This
allows
shifting
the
receive
frequency
only,
about
+1.2
kHz.
1 MHz
nected.
This
is
used
to
vary
the
frequency
in
1
MHz
steps.
This
switch
does
not
work
unless
the
GC-10
(option)
is
con-
step switch
BAND switch
/FO control
his
is
used
to
select
the
frequency.
a
lower
frequency.
This
is
the
band
selector.
Press
the
UP
button
to
switch
to
a
higher
frequency,
and
the
DOWN
button
to
his is also used for memory channel
election.
VFO keyboard
A/B __: Selects the VFO (A or B).
SPLIT
A=B
jhts in transmit.
jhts
when
the
LOCK
VEO:
vitch
is
pressed.
LOCK
a
i
hts
when
the
STEP
STEP:
Press
this
switch
to
change
the
VFO
step.
Jitch is pressed.
:
For
split
frequency
operations
A-R,
B-T
or
B-R,
A-T.
:
During
VFO
operation,
press
this
switch
to
equalize
the
frequency
and
mode
of
the
idle
VFO
to
that
of
the
active
:
Press
this
switch
to
lock
the
VFO
and
BAND
switches.

ANT (Antenna) switch
Used to select either the 7-50 MHz or
the 50 MHz connector.
7-50 MHz antenna connector
KEY jack
Connect a key to this jack when
operating in CW mode.
For connecting a single 7-50 MHz
antenna. May also be used for a
7-28 MHz antenna with the proper set-
ting of the ANT switch.
Used for connection of a seperate
50 MHz antenna.
EXT SP (External Speaker) jack ——
An external speaker terminal. Use the
50 MHz antenna oro» oe |
supplied plug when connecting an ex-
ternal speaker.
GND terminal
REMOTE
connector
_
DC
power
connector
The TS-670 should be grounded
through this terminal to avoid the
possibility of TVI and BCI.
Use this connector when the TS-670 is
operated in conjunction with an exter-
nal device. This connector is internally
connected as shown in the illustration.
For connection use the supplied 7P DIN
plug.
Connect a DC power supply to this con-
nector using the supplied power cord.
The standard voltage is 13.8 V. Pay at-
tention to polarities.
1
Rear view u GND External control (+12
Saget V DC at max. 10mA GND
7 6 5) S— yey” terminal appears in transmis-
sion.)
‘Standby terminal (For
transmission, this ter-
minal should be ground-
ed.)
External ALC
input
Speaker output
+8Vvpc GND

4. OPERATION
@ 4-1 Connection
Make connection of TS-670 as shown below.
Headphones
Use headphones of 4 to 162 impedance.
Stereo-type headphones can also be used.
on 8
Voice controller VOX-4 REMOTE commectot
Connect
the
VOX-4
output
cable
to
the
External
accessories
can
be
connected
to
the
MIC
connector
of
TS-670,
if
desired.
TS-670
through
the
REMOTE
connector.
The
PTT
terminal
can
be
used
for
remote
control
of
send/receive
operations.
a=
GND terminal External speaker
It is recommended that a ground lead be con- Key Besides the built-in speaker, an external
nected to the GND terminal at the rear of the For CW operation, connect your key to the speaker can also be used. Connect to the rear
set
to
prevent
the
possibility
of
electric
KEY
jack
at
the
rear.
Use
shielded
cable.
EXT
SP
jack
using
the
supplied
plug.
shock, TVI and BCI. Use as short and heavy a
lead as possible.
@
4-2
CONNECTION
OF
ANTENNA
AND
POWER
SUPPLY
FOR
FIXED
STATION
When
the
7-50
MHz
common
antenna
is
used,
set
the
switch
to
the
7-50
position and use the upper connector. When separate antennas are used,
50
MHz
band
HF
band
_
set
the
switch
to
the
50/7-28
position
and
connect
the
50
MHz
antenna
to
antenna
antenna
the
lower
connector
and
the
7-28
MHz
antenna
to the
upper
connector.
PS-20
Se
ms
iy
ms
Regulated
power
supply
728 mes
50
a
Wall AC outlet
Black © | @ Red
M-type connector
—_>
—
M-type connector
DC power terminal

@ 4-3 CONNECTION OF MOBILE ANTENNA AND POWER SUPPLY
ANT When a 7-50 MHz common antenna is used, set the switch to the 7-50
somo
position and use the upper connector. When separate antennas are used,
728 7-50 set the switch to the 50/7-28 position and connect the 50 MHz antenna to
the lower connector and the 7-28 MHz antenna to the upper connector.
50
M-type connector
—,,> >
—ZJ> =
M-type conector
Take power directly from
the battery terminal.
Battery (12 V)
Mobile operation
NOTE:
Before connecting and disconnecting the power connec-
tor, be sure to turn off the power switches of the
TS-670 and the PS-20.

@ 4-4 RECEPTION
Power switch OFF
(1)
Turn the SQUELCH
ntrol fully counter-
clockwise.
Turn the RF control
fully clockwise.
Turn the AF control ful-
ly counterclockwise.
REC RIT switch OFF
(2)
(3)
MODE switch BAND switch
(4)
(5)
90000
oooo0
=
———
VFO control
First connect the antenna, microphone and key.
Preset the controls as shown at the left.
Turn the POWER switch on. (First turn on the power
switch of PS-20 and then, the POWER switch of
TS-670 when operating fixed station.)
The meter and digital display will illuminate, indicating
the transceiver is in operation.
Select the desired band with the BAND switch (UP or
DOWN).
Select the desired mode. (In SSB, LSB for 7 MHz or
lower and USB for over 10 MHz is commonly used by
international convention.)
(6) Adjust the AF control to obtain the desired volume.
(7) Turn the VFO control slowly so the desired signal can
be heard clearly.
NOTES:
1. A weak beat will be heard at 53.9999 MHz. This is
normal and is not an indication of trouble.
2. In AM mode without the YK-88A filter (option), the
passband is the same as in SSB mode.