Yamaha T-1000 Owner's manual

Yamaha T-1000 Owner's manual
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Owner's Manual
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WARNING
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To prevent f
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to rain or moi
liance
is app
hock hazard do not expose th
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FRONT PA
“RX MODE SWITCH .
H INTERFERENCE .
RECEIVING FM/AM BROADCASTS
MULTIPAT
E
INITIAL S
USING TH
+ a
TATION SET
E STATION CARDS
SHOOTING
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1
TROUBLE
TIONS
SPECIFICA
FUN
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CAUTION (PREPARED IN ACCORDANCE WITH UL STANDARD 1270)
1 Read Instructions — All the safety and operating
instructions should be read before the appliance is operated.
= Retain Instructions — The safety and operating
instructions should be retained for future reference.
3 Heed Warnings — All warnings on the appliance and in
the operating instructions should be adhered to.
4 Follow Instructions — All operating and other instruc-
tions should be followed. |
5 Water and Moisture — The appliance should not be
used near water — for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near
swimming pool, etc - me
С Carts and Stands - — “The appliance should be used only
with a cart. or stand that IS recommended by. the manufac-
turer. ; ` |
7 Wall or Ceiling Mounting — The appliance should be
mounted to a wall or ceiling only as recommended by the
manufacturer.
= Ventilation — The appliance should be situated so that
its locat.on or position does not interfere with its proper
ventilation. For example, the appiiance should not be
situated on a bed, sofa, rug, or similar surface that may
block the ventilation openings; or placed in a built-in instal!a-
tion, such as a bookcase or cabinet that may impede the flow
of air through the ventilation openings.
©) Heat — The appliance should be situated away from
heat sources such as radiators, stoves, or other appliances
that preduce heat.
1 a Power Sources — The appliance should be connect-
ed to a power supply only of the type described in the
operating instructions or as marked on the appliance.
1 1 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, paying
particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the
appliance.
1 = Cleaning — The appliance should be cleaned only
as recommended by the manufacturer.
11 3 Nonuse Periods — The power cord of the appliance
should be unplugged from the outlet when left unused for a
long period of time.
1 A Object and Liquid Entry — Care should be taken
so that objects do not fall into and liquids not spilled into
the inside of the appliance.
1 5 Damage Requiring Service — The appliance 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
appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or
exhibits a marked change in performance; or
. The appliance has been dropped, or the cabinet damag-
ed.
m
1 © Servicing — The user should not attempt to service
the appliance beyond those means described in the operat-
ing instructions. All other servicing should be referred to
qualified service personnel.
1 / Power Lines — An outdoor antenna should be
jocated away from power lines.
1 5 Outdoor antenna grounding — If an outside antenna
is connected to the tuner, 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 — 1981,
provides information with respect to proper grounding of
the mast and supporting structure, grounding of the lead-in
wire to an antenna discharge unit, size of grounding con-
ductors, location of antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding
electrode.
EXAMPLE OF ANTENNA GROUNDING
AS PER NATIONAL ELECTRICAL CODE
INSTRUCTIONS
Antenna. b
Lead-in Wire
Anten na >» m To
Discharge
Unit c
Tuner or Receiver
Ground
Ground
Wire a,b
Wire ab
Ground
Clamps
Grounding
E Electrode Driven
u 8° into the Earth
(2.44 Meters)
a. Use No. 10 AWG (5.3 mm?) copper, No. 8 AWG
(8.4 mm?) aluminium, No. 17 AWG (1.0 mm?)
copper-clad steel or bronze wire, or larger, as ground
wire, |
b. Secure antenna lead-in and ground wire to house with
stand-off insulators spaced from 4 feet {1.22 meters)
to 6 feet (1.83 meters) apart.
c. Mount antenna discharge unit as closely as possible to
where lead-in enters house, :
581682
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
e Explanation of Graphical Symbols
The lightning flash with arrowhead
symbol, within an equilateral triangle,
is intended to alert you to the presence
of uninsulated “dangerous 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
you to the presence of important
operating and maintenance {servicing}
instructions in the literature accom-
panying the appliance.
The T-1000 is a sophisticated AM/FM stereo tuner. To
ensure proper operation for the best possible performance,
please read this manual carefully.
2
Choose the installation location of your T-1000 carefully.
Avoid placing it in direct sunlight or close to a source of
heat. Also avoid locations subject to vibration and excessive
dust, heat, cold or moisture. Keep it away from such
sources of hum as transformers or motors.
3
Do not open the cabinet as this might result in damage to
the set, or electrical shock. If a foreign object should get
into the set, contact your dealer,
4
To prevent lightning damage, pull out the power cord and
remove the antenna cable during an electrical storm.
5
When removing the power plug from the wall outlet, always
pull directly on the plug; never yank the cord.
6
Do not use force when using the switches.
7
"When moving the set be sure to first pull out the power
plug and remove cords connecting to other equipment.
8
Do not attempt to clean the T-1000 with chemical solvent
as this might damage the finish. Use a clean, dry cloth.
9
Be sure to read the ‘““troubleshoating’’ section for advice on
common operating errors before concluding that your
T-1000 is faulty.
10
Keep this manual in a safe place for future reference.
Be sure to connect the left (L) and right (R} channels consistently from component to component.
Outdoor FM antenna Integrated amplifier
1 AM antenna lead: If recep- |
tion is poor with the loop |
antenna, run a 5—10 meter |
{> insulated wire outdoors
. Don’t disconnect the A
Direction of 3 loop antenna.
casting Connect the output cords to
the amplifiers Tuner jacks.
7
É Connect the AM loop anten- |
| na provided (in the acces- |
sories envelope), It may be
| detached from its bracket if ;
| desired and placed at a dis- |
: tance from the set. ;
| Connect either an
| indoar FM T-type
| antenna or an out-
door FM antenna but
| not both.
Notes on connections
T-1000 rear panel e Plug all cords in firmly. If the
connections are not secure,
there may be no audio output
NIPPON GAKIKI CO.,LTD. or there may be noise.
e © ® Do not coil up excess wire on
© the floor. Also, do not bundle
with cords from other system
components.
АУТ еее АМИ ANT
i 17-1000
11WATTS EeDH:
FCC ID: AGRSLVT-1000
.. CAUTIÓNEE:
RISK DF ELECTRIC SHE
O00 NOT (FILE
WARNING- ro prevent FIRE OR SHOCK
HAZARD, 00 hOT EXPOSE 1415 APPLIANCE ГО
RAIN OR MOISTLAE
* Make sure to connect the AM loop antenna
in case of AM reception.
Coaxial cable
№ ae oe oom i oe
{
| ;
i В А ground lead is not necessary or normal Connect to an AC power outlet or
Flat twin-lead wire Earth reception, but from the point of view of to the amplifier ili
(300 ohms) DDD safety and reduced interference, grounding mp 5 auxitiary power
onms is desirable, Connect a heavy wire to a outlet.
cold water pipe or a grounding rod driven
solidly into the earth,
© CONNECTING THE FM ANTENNA
Choose an FM antenna that is appropriate to the local
reception conditions. Consider the distance from the
broadcast station and possible interfering objects such as
surrounding tall buildings. In cases where there is a strong
signal from a local station, a portable T-type antenna is
usually adequate. Connect the feeder wire to the 300 chm
terminal, stretch the wire out tight, and turn to obtain
optimum reception, Attach to a suitable support such as a
wall.
FM T-type antenna
CH Ï >
| Find the optimum
Outdoor FM antenna
reception.
Direction Do not bring
of broad- other cords close
casting i to the feeder.
stations. :
RN
With 75 ohms
coaxial cable
With 300 ohms
flat twin-lead.
10mm 10mm
— lod
Roll back braid,
Center conductor
e Outer covering dia-
meter less than 6 mm:
Strip outer sheath on
coaxial cable to expose
braid, and then roll back
- E COAXIAL CABLE CONNECTION
| | Outer covering Outer covering
| / | /
10mm 10mm
Бора — Ce
/ N Braid
Center conductor
e Quter covering diameter
greater than 6 mm: Strip
outer sheath on coaxial cable
10 expose braid. Then cut
off braid and leave it 10 mm
braid.
1. Loosen screw of 758 unbalanced terminal and make
plate free.
2. insert the center conductor of the coaxial cable into its
hole and secure cable with screw so that the braid
contacts with plate,
in length. .
e Secure the cable with
screw as shown above.
e Insert the center conductor
The loop antenna may also be '
removed and hung on the |
wall.
2. Try changing the direction
of the loop antenna.
In all but the best reception conditions, an outdoor FM
antenna is necessary for best results. Either 300 ohms flat
twin-lead wire or 75 ohms coaxial cable may be used. In
locations where electrical interference is a problem, coaxial
cable is preferable.
and bend it to the plate side,
2 CONNECTING THE AM ANTENNA
In many cases it will be possible to get excellent AM recep-
tion with the provided AM loop antenna. Attach the
antenna leads to the Gnd and AM Ant terminals and rotate
the antenna in its bracket for best reception. The loop
antenna may also be removed and hung on the wall.
If necessary, an outdoor antenna may be used for improved
AM reception. Connect a 5-10 meter length of insulated
wire to the AM Ant terminal and run it outdoors.
The loop antenna should not be disconnected.
"NOTE ON FM/AM ANTENNA INSTAL-
LATION
This tuner has both an auto-search type tuning system
with 100kHz steps on FM and 10kHz steps on AM and a
manual tuning system. Normally, with stations stronger
than 104V (300UV/m on AM when using the loop
antenna), auto-search tuning can be used to find and
tune in stations automatically. Weaker stations may be
tuned in with manual step tuning. Try rechecking the
antenna connections and adjusting the location, direction,
and height of the antenna to increase the signal strength to
a high enough level for proper reception.
BCONNECTING THE AMPLIFIER
Use the cable supplied to connect from the output jacks
to the tuner input jacks of your amplifier, being sure to
observe the left and right channel markings. Also make
sure that the connections are secure and that the
"connecting cable is not bundled with the speaker leads
or power cord from the amplifier.
YAMAHA NATURAL SOND AN/FEA STEER]
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TUNING
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AUTO
PM
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| POWER
RAUL TIPATH
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MMODE REC CAL MODE
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© MULTIPATH INDICATOR
This indicator lights to remind you that the MULTIPATH.
switch @ is pressed.
O SIGNAL QUALITY/MULTIPATH
INDICATOR
Indicates the quality of radio waves coming into the tuner
when broacicasts are being received.
When the MULTIPATH switch is ON during reception of
FM broadcasts, it also detects and indicates multipath
jamming. When positioning the antenna, fix it so that it
points in a direction that has no multipath jamming and
as such causes the fewest number of lights on this indica-
tor to light up. (For details refer to page 7.)
e Switch ON indicates multipath (only FM)
e Switch OFF. . indicates signal quality
When determining the position of the antenna, it should
be positioned so that the greatest number of signal quality
indicator lights light up. For that reason direction and
position must be selected so that the fewest number of
multipath indicator lights appear.
O RX MODE INDICATORS
This indicator lights to remind you that the RX MODE
switch @ js set to IF modes.
O REC CAL INDICATOR
This indicator begins to flash to remind you that the REC
CAL switch ® is pressed.
© TUNING MODE INDICATOR
The AUTO indicator lights when the TUNING MODE
switch @ is set to AUTO, and remains off when the
TUNING MODE switch is set to MAN'L.
(O FM STEREO INDICATOR
When an FM STEREO broadcast is being received this
indicator lights. The FM stereo, indicator will not light if
O is set to MAN'L.
@ DIGITAL FREQUENCY READOUT
Shows the frequency of the station tuned ih with the
TUNING button @ or the PRESET STATION buttons
® . The FM frequency range is 87.5 — 108.0MHz, while
the AM frequency range is 510 — 1620 kHz,
© PRESET STATION INDICATOR
This indicator of the station selected with the PRESET
STATION button lights.
© MEMORY INDICATOR
Lights for about 3 seconds after the MEMORY button ®
is pressed. During this interval the preset memory loca-
tions may be programmed.
© POWER SWITCH
When power is turned on, illumination lamps above the
PRESET STATION button will Igiht, and in a moment the
station selected with INITIAL STATION SET will be tune
in.
See page 8 for INITIAL STATION SET.
& MULTIPATH SWITCH
Operates only during FM reception. Pushing the switch
lights up the indicator, detects multipath, and indicates
MULTIPATH interference. (Refer to page 7.)
® RX MODE SWITCH
This switch only operates during FM reception.
The mode is a three state switch-over (AUTO DX —>
ENFORCED DX = ENFORCED LOCAL) mode. It
switches-over in the above order each time the switch is
pushed and is shown on the indicators. (Refer to page 7
for details)
@ REC CAL SWITCH
This switch provides a signal for setting record levels prior
to recording from the tuner. Pressing the switch activates
the REC CAL oscillator to send a 333Hz 50% FM
“ modulated signal to the output jacks. This allows the
recording level ta be set for a “typical” program level
regardiess of the current level of the broadcast being
received.
* The REC CAL switch takes precedence over all other
tuner functions; therefore, it should be left off when
not in use,
O TUNING MODE SWITCH
Sets the Tuning button for either Auto or Manual opera-
tion,
e AUTO Position (FM STEREO)
The TUNING MODE indicator € lights, and the auto-
search tuning function of the Tuning button @ is —
activated.
In the AUTO position, any FM stereo broadcast will be
received in stereo,
e MAN'L/MONO Position (MONO)
The TUNING MODE indicator is off, and the manual
tuning function of the Tuning button @ is activated.
* in the MAN'L/MONO position, even FM stereo broad-
casts will be heard in mono.
O FM/AM BUTTON
These switches select either FM or AM broadcasts.
(BG TUNING BUTTON
Use this button to tune in broadcast stations.
e When the TUNING MODE switch & has been set to
AUTO.
Pressing the DOWN side of the button scans the broadcast
band downwards until a station is encountered, then stops
with the station perfectly tuned in (Auto-Search Tuning).
Pushing the button again scans progressively lower
frequencies until the next station is found, When the
bottom of the band is reached, the frequency is set to the
top of the band and the scan continues downward. Press-
ing the Up side of the button scans the band upwards in the
same way.
e When the TUNING MODE switch (D has been set to
МАМ".
Pressing the DOWN side of the button scans down the band
only as long as the button is held, and pressing the Up
side scans upwards as long as the button is held. In either
‘case scanning stops when the button is released. Pushing
the Tuning button briefly causes the frequency to advance
0.1MHz on FM or 10kHz on AM.
T-IOC
O PRESET STATION BUTTONS
Use these buttons to select the broadcast station preset
with MEMORY button.
A total of 10 stations may be preset into the tuner's
MEMORY.
It is not necessary to select the proper band (FM or AM)
before using one of the PRESET STATION buttons to tune
in a station. The band is memorized to together with the
station.
The tuning mode (FM stereo or mono) and RX MODE
are also memorized.
(O) MEMORY BUTTON
Pushing this button causes the indicator on the button to
light for 3 seconds. Pressing one of the PRESET STATION -
buttons Y while the indicator is lit causes the frequency
of the station currentiy tuned in to be memorized,
This button is also used to control the Initial Station Set
function. You can preselect the station to be tuned in when
power is first turned on. For details refer to page 8.
Depending on radio wave conditions, those most suitable
for FM broadcasts are selected by switch-over of the |F
mode.
® AUTO DX
When interference of radio waves is not strong, reception
is made using the wide IF range LOCAL mode. If the radio
waves are weak or jammed, the DX mode, which has a
high degree of sensitivity, automatically switches over
enabling reception with little or no static. :
Furthermore, in this mode the high cut filter operates in
accordance to the antenna input level. When the radio
~ waves become weak, the high filter is activated and high
range noise is eliminated. (In the LOCAL mode the high
fitter turns off automatically.)
* Having gone from LOCAL made to DX made once,
even if radio wave conditions revert to normal. return to
LOCAL mode is not automatic.
When this happens, release the control once and reset
the station or use the ENFORCED LOCAL mode.
® ENFORCED DX
To receive from a station far away or when the radio
waves are weak or jammed, use of this mode enables
increased selectivity and clear low-static reception.
® ENFORCED LOCAL
This position should be used in areas where the radio
station is nearby and the radio waves are sufficiently
strong with little interference, or when reception of only
strong radio stations and not that of weak ones is desired.
y
Switeh-aver order
RxXMODE
— S AUTO DX MODE
RX MODE RX MODE
(High Cut Filter Auto)
® ENFORCED DX MODE
RXMODE
X LOCAL
(High Cut Filter OFF)
e ENFORCED LOCAL MODE
(High Cut Filter OFF)
Switches are made in the above order
each time the switch is pushed
(effective only for FM reception).
Normally operate in the AUTO DX
mode.
ox LOGAL сх LOCAL Y
C 1 — EEE {automatic | EEES CO]
AUTO” |
jt;
Multipath is an effect similar to television ghosting; it
distorts the received signal and also causes poor stereo
separation and noise. As shown in fig, radio waves which
travel directly from the transmitter to the receiving antenna
are mixed with waves which reflect off nearby objects such
as buildings. Because the path taken by the reflected waves
is longer than the direct path, the time required for the
waves to arrive at the antenna is also longer. The mixing of
the directly received signal and the delayed signal notice-
ably degrades reception quality, Multipath interference can
be greatly reduced by the use of a high-quality directional
antenna oriented in the proper direction.
s MULTIPATH DETECTION
The signal quality indicator of this unit uses a jamming
detector which shows the quality of radio wave reception
when the MULTIPATH switch is OFF (indicator light out).
If the MULTIPATH switch is ON (indicator light on) when
receiving FM boradcasts, multipath jamming is detected and
indicated.
Because reception is distorted if the multipath is detected,
it is necessary to make adjustments by recorrecting the
height, direction, and position of the antenna or by
replacing it with a good directional antenna.
Broadcast
antenna
oa AAA
Wave received
directly
Outdoor
antenna
Reflected
pd wave
bos
LIGHT
SIGNAL QUALITY
/MULTIPATH
| /
FA
— WR - MULTIPATH ых
0°. 20 40
ep
65 80
EE tono NN
Multipath
jamming
DD Only works during FM reception
on Use when fixing the FM antenna positiorr
ED -
baaa №
s MANUAL Tuning Ss PRESET Tuning о
MA aa A When the signal strength of the desired station is very weak, In addition to the Auto Search Tuning and Manual Tuning
. there are cases when the auto search tuning feature will not functions of the TUNING button, this tuner has PRESET
= AUTO SEARCH Tuning | be able to find the station. In this case manual tuning STATION buttons which provide convenient preset tuning.
1) Press the FM/AM button to select FM or AM. should be used, | This one-touch tuning method is easier, faster and more
2) Set the TUNING MODE switch to “AUTO”, precise than ordinary tuning methods.
3) Press the DOWN or the UP side of the TUNING button. ® Presetting Stations into the Memory
The tuner wili automatically scan the band and stop wm || Ese [FES lores] He The following example shows how to preset station fre-
when a station is found. Tans || ov Fa — quencies into-memory 1.
1) Press the FM/AM button to select FM or AM.
DN ое 2) Tunes in the desired station's frequency with AUTO
= De SEARCH Tuning or MANUAL MONO Tuning.
Freee [nes |[омые) [ем | С ВТАОМЕВЕвОву ——) / ! +, 3) Press the MEMORY button, and it will light about 3
ло > [MS : me В a ) seconds, | |
£ — Set to “MAN'L” > ; 4) While it is lit press the desired button on the PRESET
AXMODE FEC Cl TORE EM UNNE | (TUNING MODE | 1 J STATION bottons. The station's frequency will be
Г PAT ] J indicator will go out.) | 7 memorized and the MEMORY indicator will go out.
A di (+
nd A Baker A [ Les 1) Press the FM/AM button to select FM or AM.
| Set to "AUTO" | \ ; 2) Set the TUNING MODE switch to “MAN'L / MONO" | = = | — ] a = = т “атом
| (TUNING MODE ; ; 3) Press the DOWN or the UP side of the TUNING button m Pa Pa Ps = —
| indicator will light.) } — continuously, | | | Ш! MEMORY
Release the button slightly before the frequency of the rl
desired station is reached, and use light presses of the :
4
—
If the frequency of the desired station has not yet been
reached, press the button repeatedly until your station
has been tuned in.
* If no antenna is connected or when an indoor antenna is
being used, there may be no stations strong enough to
stop the automatic scan. Set the TUNING MODE switch
to MAN'L to stop the scan in this case. |
button to tune the station in exactly.
“=! While the MEMORY indicator |
| is lit press PRESET STATION |
| button. |
* When you want to change a previously preset memory,
simply repeat the preset procedure given above and the
previously memorized frequency will be automatically
erased.
e Tuning in a Preset Station
By pressing only PRESET STATION buttons a total of 10
FM and AM stations can be tuned in without having to
manually select FM or AM with the FUNCTION buttons.
B INITIAL STATION SET Feature
You can have the T-1000 tune in the station you most
often listen to automatically when power is first turned on,
This feature is also useful for turning the tuner on with a
timer to begin recording an FM or AM broadcast while
“away.
1) Tune the station (by AUTO, MAN'L, or PRESET)
tuning that you want to listen to (or record) when
power is turned on. |
2) Press the MEMORY button and hold it until its indi-
cator begins to flash.
Now, power may be turned off. Now, every time power
is turned back on, the selected station will automatically
be tuned in.
* When you want to change a previously preset memory,
simply repeat the preset procedure given above and the
previously memorized frequency will be automatically
4 a :
& Using the Station Cards
Station Cards as shown below come with the T-1000.
N
~
Blank station cards are provided for you to fill
in according to the particular stations in your
area you wish to program into the preset
memory. They can be changed at your discre-
erased.
| STATION FREQUENCY | INITIAL
EZ
AM FT 127 Pa i) kHz не
FM Y et di © i_! ti MHz = <
| Tune in the station to be
listened to or recorded.
| Hold the MEMORY *
| button until its 8
| indicator begins to
| flash.
The following cards are provided for your use: tion.
| MIC |... fora wireless FM mic
Inserting, replacing station cards:
1. Remove the card holder.
Card holder
Z. Remove the
attached card.
— Accessories
3. After appropriately labelling a station card,
remove it from the film sheet and attach it to
the card holder. C3
card holder
1 / -rear side
card holder
Please confirm the accessories included.
antenna
FM T-type antenna
(300 ohms)
Crackling sounds from time to time {especially
in weak signal areas).
Before assuming that your tuner is faulty, check the following troubleshooting list which details corrective action you can
take yourself without having to call a service engineer. If you have any doubts or questions, get in touch with your nearest
Yamaha dealer.
ignition noise from vehicles.
== bm
The FM antenna should be put up as high as possible, away
from the road, and a coaxial cable used.
Noise from thermostats or other electrical equipment.
Attach a noise suppressor to the equipment causing the
noise.
The FM stereo reception is noisy.
Because of the characteristics of FM stereo broadcasts,
this is limited to cases where the transmitter is far away
or the antenna input is poor,
Check the antenna connections.
Try using a multiple element FM antenna.
Set the TUNING MODE switeh to the "MAN'L 7 MONO”
position,
The FM Stereo indicator flickers on and off and
reception is noisy.
insufficient antenna input.
Use an antenna appropriate for the reception conditions in
your area.
Not tuned correctly.
Tune again.
There is distortion and clear reception can not be
obtained even with a good FM antenna,
There is multipath interference.
Adjust antenna placement to eliminate multipath inter-
ference.
No stereo effect even with a stereo broadcast,
The TUNING MODE switch is set to the "MAN'L/
MONO" position.
Set the switches properly.
A desired station can not be tuned in with Auto
Tuning.
The station is too weak.
Use a high-quality directional FM antenna.
Use Manual tuning mode.
Previously preset stations can no longer be
tuned in.
The tuner has been unplugged for a long period.
Repeat the preset procedure.
Insufficient sensitivity.
A desired station can not be tuned in with Auto
Tuning.
Weak signal or loose antenna connections.
Tighten the AM loop antenna connections and rotate it
for best reception.
Use an outdoor antenna.
There are continuous crackling and hissing noises.
These noises result from lightning, fluorescent lamps,
motors, thermostats and other electrical equipment.
Use an outdoor antenna and a groundwire. This will help
somewhat but it is difficult to eliminate all noise.
There are buzzing and whining noises (especially
in the evening).
Another station is interfering with the received station.
This is impossible to remedy.
A television set is being used nearby.
Move the television a distance away.
10
B® FM SECTION
Tuning Range . . ............ 87.6 ~ 108.0MHz
50dB Quieting Sensitivity
Mono 1.221011 11111120 3.2/4 V (15.3dBf)
Stereo ....1 121111111111 40uV (37.2dBf)
Usable Sensitivity
(30dB Quieting Mono) 758. . . . . 0.9uV (10.3dBf)
Image Response Ratio . . . . . aaa a 80dB
IF Response Ratio . . . . .............. 11048
Spurious Response Ratio . . ., .......... 110dB
AM Suppression Ratio... ......... ee 65dB
Capture Ratio
Local . . . . . . oo ее, 1.2dB
Alternate Channel Selectivity
DX ee 85dB
Adjacent Channel Selectivity
DX a, 20dB
Signal to Noise Ratio (IHF)
Mono ... ena aaa naaa 92dB
Stereo . . LLL. 85dB
Distortion
Mono 1kHz . . . . .... .. DX 0.15%, Local 0.03%
Stereo 1kHz........... DX 0.5%, Local 0.04%
Stereo Separation {1kHz) . . ......... Local 65dB
Frequency Response 0.2
BO0Hz to 10kHz . . .. ............ 0 tp 39B
Subcarrier Product Ratio . . ............. 55dB
E AM SECTION
Tuning Range... .... 510 - 1620kHz
Usable Sensitivity . . .. .............. 250uV
Selectivity . . .. 11.111011 1111111114 0 25dB
Signal to Noise Ratio. . . .............. 55dB
Image Response Ratio . _ . .............. 40dB
Suprious Response Ratio . . . ...........,. 50dB
Distortion (400Hz) . . . . . .............. 0.2%
= AUDIO SECTION
Output Level/Impedance
FM (100% MOD 1kHz) . ........ 500mV/1.5k 2
AM (30% MOD 400Hz) ......... 150mV/1.5k 2
REC CAL {333Hz) . . . .. aa 250MV/1.5kQ
m GENERAL
Power Supply . . ................ 120V 60Hz
Power Consumption . . . . ............... 11W
Dimension (WxHxD)...... . . 435 x 72 x 316 mm
(17-1/8""x2-7/8"x12-1/2"")
Weight 3.8 kg
(8.4 lbs)
Specifications subject to change without notice.
SINCE 1887
NIPPON GAKKI CO., LTD. HAMAMATSU, JAPAN
8305 Printed in Japan В @
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