B50-9842-10 C® (K, P. E, T, M. X) (G)
90/12 11 10 987654321
A Caution: Read this page carefully to keep your safety.
Page 2
Introduction
Your choice of this product indicates that you are a
devotee of excellence in sound reproduction.
We appreciate your patronage and take pride in the long
tradition of quality components that our company repre
sents.
So that you can get the most out of your unit we suggest
that you take the time to read through this manual before
you hook up and operate your system. This wili acquaint
you with the operating features and system-connection
considerations, so that your listening pleasure will be
enhanced right from the start. You will notice that in ail
aspects of planning, engineering, styling, operating con
venience and adaptability, we have sought to anticipate
your needs and desires.
Keep this manual handy for future reference.
For your records
Record the serial number, found on the back of the unit, in
the spaces designated on the warranty card, and in the
space provided below. Refer to the model and serial
numbers yvhenever you call upon your dealer for informa
tion or service on this product.
Model__________Serial Number _____________________
Unpacking
Unpack the unit carefully and make sure that all accesso
ries are put aside so they will not be lost.
Examine the unit for any possibility of shipping damage. If
your unit is damaged or fails to operate, notify your dealer
immediately. If your unit was shipped to you directly,
notify the shipping company without delay. Only the
consignee (the person or company receiving the unit) can
file a claim against the carrier for shipping damage.
We recommend that you retain the original carton and
packing materials for use should you transport or ship the
unit in the future.
Note to CATV system installer:
This reminder is provided to call to the CATV system
installer's attention to Article 820-22 of the NEC that
provides guidelines for proper grounding and, in particu
lar, specifies that the cable ground shall be connected to
the grounding system of the building, as close to the point
of cable entry as practical.
Accessories
Contents
Introduction
A Before applying power
A Safety precautions
A IMPORTANT SAFEGUARDS
System connections ..................................................
.................................................................. 2 Controls and Indicators..................................................8
A Caution: Read this page carefully to keep your safety.
Before applying power
For the U.S.A. and CanadaFor Australia and Europe
Units shipped to the U.S.A. and Canada are designed for
operation on 120 volts AC only.
Safety precaution for a Ploarized AC plug
CAUTION: TO PREVENT ELECTRIC SHOCK DO NOT
USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD,
RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES
CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
For the United Kingdom
Units shipped to the U.K. are designed for operation on 240
volts AC only.
The mains plug must be removed from the wall socket prior to
any internal examinaiFon.
The wires in this mains lead are coloured in accordance with
the following code:
Blue ....................................................
Brown..............................................— Live
The wires in this mains lead must be connected to the
terminals in the plug as follows:
Wire colour Plug terminal marking
Biue
.......................—----
Brown
............................................... L or Red
fuse.
2. if a 3-pin plug with earthing contact is used, no wire must
be connected to the E terminal.
Important!
Important!
-----------------
Neutral
N or Black
Units shipped to Australia are designed for operation on
240 V AC only.
Units shipped to Europe are designed for operation on 220 V
AC only,
For other countries
Units shipped to countries other than the above countries are
equipped with an AC voltage selector switch on the rear
panel. Refer to the following paragraph for the proper setting
of this switch.
AC voltage selection
This unit operates on 1 1 0-1 20 or 220-240 volts AC. The AC
voltage selector switch on the rear panel is set to the voltage
that prevails in the area to which the unit is shipped. Before
connecting the power cord to your AC outlet make sure that
the setting position of this switch matches your line voltage,
If not, it must be set to your voltage in accordance with the
following direction.
Our warranty does not cover damage caused by excessive line
voltage due to improper setting of the AC voltage selector
switch.
AC 110- AC220-
120V - 240V-
AC110- ACS220-
120V- 240V-
1-1
1. Before plugging in this unit, make sure that the position of
the AC voltage selector conforms to your line (mains)
voltage, If not, it must be reset. See Fig. 1-1.
2. To reset the selector, slide the stopper plate to the
opposite side with a screwdriver or other pointed tool. See
Fig. 1-2.
3. Insert the power cord securely. See Fig. 1-3.
Safety precautions
WARNING: TO PREVENT FIRE OR SHOCK HAZARD,
TO RAIN OR MOISTURE.
DO NOT EXPOSE THIS APPLIANCE
Important!
ImportantI
Fig. 1
A 1 CAUTION 1 A
A
A
CAUTION; TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SER
VICING TO QUALIFIED SERVICE PERSONNEL
A
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIAN
GLE, IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED "DAN
GEROUS VOLTAGE" WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE OF SUFFICIENT
MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT
THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SER
VICING) INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE.
A Caution: Read this page carefully to ensure safe oper-
Page 4
IMPORTANT SAFEGUARDS
ZK Caution: Read this page carefully to ensure safe oper
ation.
Please read all of the safety and operating instructions
before operating this unit. For best results, follow all
warnings placed on the unit and adhere.to the operating
and use instructions. These safety and operating instruc
tions should be retained for future reference..
1. Power sources-The unit should be connected to a
power supply only of the type described in the
operating instructions or as marked on the appliance.
2. Power-cord protection - Power-supply cords should
be routed so that they are not likely to be walked on
or pinched by items placed upon or against them, pay
particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the
unit.
Never pull or
stretch the cord.
3. Grounding or polarization - The precautions should
be taken so that the grounding or polarization means
of this unit is not defeated.
4. Ventilation-The unit should be situated so that Its
location or position does not interfere with Its proper
ventilation.
To maintain good ventilation, do not put records or a
table-cloth on the unit. Place the unit at least 1 0 cm
away from the walls.
Do not use the unit on a bed, sofa, rug or similar
surface that may block the ventilation openings.
7. Heat-The unit should be situated away from heat
sources such as radiators, heat registers, stoves, or.
other units {including amplifiers) that produce heat.
8. Electric shock - Care should be taken so that object
do not fall and liquid Is not spilled into the enclosure
through openings. If a metal object such as a hair pin
or a needle, comes into contact with the inside of this
unit, a dangerous electric shock may result. For
families with children, never permit children to put
anything, especially metal, inside this unit.
9. Enclosure removal - Never remove the enclosure. If
the internal parts are touched accidentally, a serious
electric shock might occur.
5. Water and moisture-The unit should not be used
near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near
a swimming pool, etc.
6. Temperature - The unit may not function properly if
used at extremely low, or freezing temperatures. The
ideal ambient temperature is above +5‘’C {41°F).
4 KT-5020 (En)
10. Magnetic fields - Keep the unit away from sources
of magnetic fields such as TV sets, speaker systems,
radios, motorized toys or magnetized objects.
11. Cleaning - Do not use volatile solvents such as alco
hol, paint thinner, gasoline, or benzine, etc. to clean
the cabinet. Use a clean dry cloth.
Page 5
A Caution; Read this page carefully to ensure safe oper
12. Carts and stands-An appliance and cart combina
tion should be moved with care. Quick stops, exces
sive force, and uneven surfaces may cause the appli
ance and cart combination to overturn.
13. Nonuse periods-The power cord of the unit should
be unplugged from the outlet when left unused for a
long period of time.
14. Abnormal smell-If an abnormal smell or smoke is
detected, immediately turn the power OFF and pull
out the power cord. Contact your dealer or nearest
service center.
15. Damage requiring service-The unit should be
serviced by qualified service personnel when:
A. The power-supply cord or the plug has been
damaged; or
B. Objects have fallen, or liquid has been spilled into
the unit; or
C. The unit has been exposed to rain; or
D. The unit does not appear to operate normally or
exhibits a marked change in performance; or
E. The unit has been dropped, or the enclosure
damaged.
16. Servicing-The user should not attempt to service
the unit beyond that described in the operating
instructions. All other servicing should be referred to
qualified service personnel.
17. Outdoor antenna grounding - If an outside antenna
is connected to the receiver, be sure the antenna
system is grounded so as to provide some protection
against voltage surges and built up static charges.
Section 810 of the National Electrical Code, ANSI/NFPA No. 70-1984, provides information with re
spect to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna
discharge unit, size of grounding conductors, location
of antenna-discharge unit connection to grounding
electrodes, and requirements for the grounding elec
trode. See Figure.
POWER OFFI
ation.
^ Use No, 10 AWG (5.3 mm=) copper, No.8 AWG (8.4 mm"*)
aluminum, No. 17 AWG (1.0 mm^) copper-clad steel or bronze
wire, or larger, as a ground wire.
Secure antenna lead-in and ground wires to house with stand- off
insulators spaced from 4-6 feet (1.22 - 1.83 m) apart.
® Mount antenna discharge unit as close as possible to where lead-in
enters house.
Use jumper wire not smaller than No.6 AWG (1 3.3 mm^) copper,
or the equivalent when a separate antenna-grounding electrode is
used. See NEC Section 810-21(j),
18. Power lines - An outdoor antenna should be located
away from power lines.
19. AC outlets - Do not connect other audio equipment
with a power consumption larger than that specified
to the AC outlet on the rear panel. Never connect
other electrical units, such as an iron or toaster, to it
to prevent fire or electric shock.
Notes:
1. Item 3 is not required except for grounded or polarized equipment.
2. Item 17 and 18 are not required except for units provided with antenna terminals.
3. Item 17 complies with UL-1270 in the U.S.A.
4. Item 19 is not required except for units provided with AC outlets.
Page 6
System connections
Make connections as shown in the diagram below.
Do not plug the power cord into the wall outlet until all connections have been completed.
FM indoor
antenna
I 300 ohm
\feeder ZT2V__jL_Zll
FM outdoor
antenna
®-Ki)
AM outdoor antenna
на
___
P
When this unit is combined with an amplifier
having KENWOOD SYSTEM CONTROL termi
nals, system operations such as remote control
as a system is made possible. For details, refer
to the instruction manual of the amplifier.
If your amplifier or receiver is not equipped
with the SYSTEM CONTROL terminals, do not
connect anything to any SYSTEM CONTROL
terminals.
Do not connect the unit in any system config
uration other than specified.
an amplifier.
The SYSTEM CONTROL jacks on KENWOOD amplifiers
are marked with either " СХП " or " CXST".
By connecting the SYSTEM CONTROL jack of this unit
with that of a KENWOOD amplifier, the following system
operations are possible.
When connected to an " СХП ” jack: This unit can be
controlled as part of the entire system with the remote
control unit provided with the amplifier.
When connected to an " DCS " jack: This unit can be
controlled as part of the entire system with the remote
control unit provided with the amplifier for easy operation.
For details, refer to the instruction manual provided with
your amplifier.
6 KT-5020 (En)
1. Be sure that all the connecting cords are connected properly.
If they are not. the sound may not be produced or there may
be noise interference.
When taking out and putting in the connecting cords, be sure
to turn the power of this unit OFF and turn the amplifier's
volume to minimum. If this is not done, it can lead to errors in
functioning.
■ AM loop antenna setting
Insert the supplied AM loop indoor antenna into the
supplied loop antenna stand.
Place the stand on a stable surface, for example on a shelf,
or install it on a rack or wall with wood screws.
Place the AM loop indoor antenna as apart as possible from the
TV, speaker cords, power cords and system control cords.
■ AM outdoor antenna
In steel buildings or at a great distance from the transmit
ter, it may be necessary to Install an outside longwire
antenna. The end of this wire should be stripped of
insulation and connected to the AM terminal. At this time,
keep the loop antenna connected.
Page 7
■ FM outdoor antenna
Consult with your dealer or service man about the best
method of selecting and erecting an outdoor FM antenna,.
The choice of lead-in (feeder) wire is also important. The
flat ribbon-shaped twin lead performs well electrically, is
cheaper and is somewhat easier to handle in routing
through windows and around rooms. Coaxial cable is
more expensive, does a much better job of minimizing
interference, is less prone to the effects of weather and
close-by metal objects, and is nearly as good a signal
conductor as the ribbon type wire. The latter is particularly
true of foam-type coaxial cables. Coaxial cable is some
what more difficult to install at the point where the cable
enters the building.
Close the cover.
Connect the adaptor to the antenna
terminal.
(Cover)
(Antenna adaptor)
I Connection of 300-ohm feeder cable
Page 8
Controls and indicators
Preset station key (1—0)
8 KT-5020 fEn)
Page 9
Operating instructions
Display content
’^Last station
As the memory of this unit is backed up, the frequency
received before the power is turned off is memorized.
This is referred to as the last station frequency. When
the power is turned on again, the unit tunes in the last
station frequency.
Display content
Tuning signal indicator
AUTO indicator
Frequency display
(Displays the last channel received}
AUTO indicator
Frequency display
(Displays the last channel received)
■ Auto tuning reception
1. Set the input selector of the amplifier to TUNER.
2. Press the POWER switch.
3. Select the desired band by pressing one of the band
select keys.
• To listen to AM (MW/LW) stations, press the AM
(MW/LW) SELECTOR switch.
The frequency display shows the last AM (MW/LW)
station.
• To listen to FM stations, press the FM SELECTOR
switch.
The frequency display shows the last FM station,
4. Set the TUNING MODE key so that the AUTO indicator
lights.
5. Press the TUNING keys to tune in a station.
• Press the TUNING key to tune in a station with a
higher frequency than the current received fre
quency, or TUNING key to tune in a frequency
with a lower frequency.
• The stations are automaticaily scanned.
6. Adjust the volume and tone of your amplifier.
■ Manual tuning
(The reception mode is forced to monaural even when a
FM stereo station is received.)
The manual tuning is to be used for receiving a weak
station which cannot be received by auto tuning.
1. Perform procedures 1 ~ 3 above.
2. Press the TUNING MODE select key so that the AUTO
indicator goes off.
3. Press the TUfTrNG key to tune In the desired broad
casting station.
• If the TUNING key is held depressed, the frequencies
will change continuously until the key is released.
4. Adjust the volume and tone of your amplifier.
TUNING SIGNAL indicators
As a station is being tuned in, a left or right indicator
lights in red, and the number of lighting points in
creases as the signal strength increases. Then, when
the correct tuning is very near, the white points in the
center start to light and increase in number. The station
is tuned most precisely when the number of white
points is at a maximum.
In detuning, the above steps will be reversed.
In AM (MW/LW) reception, the center white indicator
lights when a station is tuned in.
If the signal strength of the electric field is insufficient
the left and right indicators will not light more than 4
RED points, or the indication becomes asymmetrical.
■ FM DE-EMPHASIS switch (Except some
areas)
This switch has been set to the correct position for a given
market area. However, check to see that this switch is set
correctly before operating your unit. An incorrect setting
will adversely affect high-frequency performance.
Europe and Oceania ................................
Other countries
................
.......................... 75
50 fis
■ AM/FM CHANNEL SPACE switch (Ex
cept some areas)
The CHANNEL SPACE switch on the rear panel is set to
the correct setting that prevails in the area to which the
unit is shipped. However, If the channel space setting is
not matched to the area where the unit is to be used;for
instance, when you moved from area 1 to area 2 or vice
versa, desired reception of AM/FM broadcasts is not
expected. In this case, change the CHANNEL SPACE
setting in accordance with the area corresponding to the
table shown below.
When changing the setting of the AM/FM CHANNEL SPACE
switch, first unplug the AC power cord, then operate the switch,
and finally insert the AC power cord again.
100 kHz
10 kHz
50 kHz
-
Page 10
operating instructions
* Select preset group A or В by the A/B select key.
■ Preset tuning
1. Receive a station either by auto tuning or nnanual
tuning.
2. Select preset group A or В with the preset A/B select
key.
• A total of 20 stations can be preset in memory; 1 0 in
group A, and 10 in group B.
3. Press the MEMORY key.
• The MEMORY indicator lights for about 5 seconds.
4. While the MEMORY indicator lights, press one of the
preset station keys.
The MEMORY indicator goes off, the preset indicator
lights up, and the frequency of the received station is
preset under the selected key.
■ How to receive a preset station
1. Select preset group A or В with the preset A/B select
key.
2. Press the preset station keys under which the fre
quency of the desired station has been preset.
3. Adjust the volume and tone on the amplifier.
The preset memory contents are backed up for at least
three days even after the power cord is disconnected.
IT
10 KT-5020 (En}
■ FM IF BAND key
This key switches the intermediate frequency passing
band between "WIDE" and "NARROW". When listening
in an area where there is no radio interference, press the
key so that the "FM IF BAND" indicator lights to indicate
the WIDE mode: High-quality sound without distortion
can be recording.
When interference is noticed, set the switch off for the
NARROW mode: The radio wave selectivity is improved,
thereby resulting interference free reception.
Page 11
In case of difficulty
If your tuner should not perform as expected, consult the table below to see if the problem can be corrected before seeking
help from your dealer or service representative.
General
Sound is not produced.
Tuning signal indicators light unstably.
Sound is interrupted when a switch is
pressed.
Symptom
1. Antennas are not connected.
2. Amplifier is not connected.
3. No broadcast station is turned in.
Antenna is not connected properly.Check for disconnecjjon or bad contact.
Muting is applied temporarily to prevent
shock nois.e .due to switching.
Occurs during FM reception only
Hiss that gets worse in stereo reception.
Rhythmic static or popping noises.
STEREO indicator does not light and recep
tion is monaural although the station is
being broadcast in stereo.
Symptom
Very weak antenna input signal.Consider an outdoor antenna installation. In
Automobile ignition noise, especially evi
dent when receiving weak signals.
Radio wave is so weak that the tuner forces
monaural reception.
Occurs during AM reception only
Continuous noise sounding "zzz" interferes
reception specially in the evening or night.
Humming noise (tuning hum) is heard only
when a specific station is tuned in.
Continuous, high-tone noise sounding
"tweet" or "shoo" interferes and increases.
Symptom
Noise from an electrical appliance (fluores
cent lamp, etc.) or atmospheric noise is
entering the antenna.
1. The noise may be due to the direction in
which the power plug is inserted into the
outlet.
2. It may be due to the condition of the
local area where the tuner is used.
1. The noise may be generated from a TV.
2, It may be a beat noise due to cross-
interference between AM stations.
Cause
Cause
Cause
1. Connect the loop antenna for AM and
outdoor or T-shaped antenna for FM.
2. Connect the amplifier using an audio
cord.
3. Tune in a station.
This is not a malfunction.
areas remote from the transmitter a 5 to 8
element antenna designed exclusively for
FM is suggested.
Review antenna installation. Site, the an
tenna as far from the street as possible and
use coaxial cable.
Install a dedicated FM outdoor antenna to
ensure sufficient radio wave reception.
The noise can be reduced by installing an
outdoor AM lead antenna and providing
grounding to the tuner.
However, it is difficult to eliminate such
noise completely.
1. Insert the power plug so that the blades
are plugged in the different power outlet
slots from before.
2. It is not avoidable that hum noise inter
feres with specific stations as.long as AC
power supply is used.
1. Switch off the TV. {Also remember that
the noise could be due to another TV in
your neighbors.)
2. It cannot be eliminated because it is
based on the characteristics inherent to
AM radio system.
Remedy
Remedy
Remedy
Troubles specific to synthesizer tuners
No station is tuned in when a preset station
key is pressed.
The whole of the memory stored under the
preset station keys has disappeared.
Symptom
No station frequency has not been preset
under that key.
Memory backup could not function because
the power was not supplied through the
power cord.
Cause
Check the frequency of desired station and
preset it securely.
The power cord must be connected to a
wall outlet or an "unswitched" power out
let.
Remedy
Page 12
Specifications
For other Countries
FM tuner Section
Tuning frequency range
Usable sensitivity (MONO)
50 dB quieting sensitivity
MONO
........... .
STEREO
Total harmonic distortion (at 1 kHz)
Signal to noise ratio (at 1 kHz, 85 dBf input)
Stereo separation
Captuer ratio ............
Alternate channel selectivity
Image rajection ratio (at 98 MHz)
IF rejection ratio (at 98 MHz)
Spurious rejection ratio (at 98 MHz).....................1 05 dB
AM suppression ratio
Frequency response
Output level/lmpedance
AM Tuner Section
Tuning frequency range
Usable sensitivity ...............
Signal to noise ratio
Total harmonic distortion
Image rejection ratio (Loop)
Selectivity
Output level/lmpedance