Yamaha TX-492 Инструкция по применению

Бренд: Yamaha

Модель: TX-492

Категория: Ресиверы

Тип: Инструкция по применению

Yamaha TX-492 — это стерео тюнер с естественным звучанием, который порадует вас чистым и качественным приемом радиостанций. С его помощью вы сможете наслаждаться любимыми передачами и музыкой в отличном качестве. Тюнер оснащен функциями автоматической настройки станций и запоминания до 10 избранных каналов, что позволит вам быстро переключаться между ними. Благодаря компактному размеру и элегантному дизайну Yamaha TX-492 прекрасно впишется в любой интерьер.

Natural Sound AM/FM Stereo Tuner

Syntonisateur AM/FM stéréo de la série “Natural Sound”

TX-492

CONTENTS

Safety Instructions ...............Inside the Front Cover

Caution ............................................................2

Supplied Accessories ......................................3

Features ..........................................................3

Connections ....................................................4

Controls and Their Functions ..........................7

Tuning Operations ...........................................9

Preset Tuning ................................................10

Troubleshooting .............................................13

Specifications ................................................14

TABLES DES MATIERES

Accessoires fournis .......................................15

Caractéristiques ............................................15

Attention ........................................................16

Connexions ...................................................17

Les commandes et leurs fonctions.................20

Syntonisation .................................................22

Syntonisation préréglée ................................23

En cas de difficulté ........................................26

Caractéristiques techniques ..........................27

OWNER’S MANUAL

Thank you for selecting this YAMAHA stereo

tuner.

MODE D’EMPLOI

Nous vous remercions pour avoir porté votre

choix sur ce syntonisateur stéréo YAMAHA.

1 Read Instructions – All the safety and operating

instructions should be read before the unit is operated.

2 Retain Instructions – The safety and operating instructions

should be retained for future reference.

3 Heed Warnings – All warnings on the unit and in the

operating instructions should be adhered to.

4 Follow Instructions – All operating and other instructions

should be followed.

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 Carts and Stands – The unit should be used only with a

cart or stand that is recommended by the

manufacturer.

6A A unit and cart combination should be

moved with care. Quick stops, excessive

force, and uneven surfaces may cause the

unit and

cart combination to overturn.

7 Wall or Ceiling Mounting – The unit should be mounted to

a wall or ceiling only as recommended by the

manufacturer.

8 Ventilation – The unit should be situated so that its

location or position does not interfere with its proper

ventilation. For example, the unit should not be situated

on a bed, sofa, rug, or similar surface, that may block the

ventilation openings; or placed in a built-in installation,

such as a bookcase or cabinet that may impede the flow

of air through the ventilation openings.

9 Heat – The unit should be situated away from heat

sources such as radiators, stoves, or other appliances

that produce heat.

10 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 unit.

11 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 unit.

12 Cleaning – The unit should be cleaned only as

recommended by the manufacturer.

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 Object and Liquid Entry – Care should be taken so that

objects do not fall into and liquids are not spilled into the

inside of the unit.

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 cabinet damaged.

16 Servicing – The user should not attempt to service the unit

beyond those means described in the operating

instructions. All other servicing should be referred to

qualified service personnel.

17 Power Lines – An outdoor antenna should be located

away from power lines.

18 Grounding or Polarization – Precautions should be taken

so that the grounding or polarization is not defeated.

SAFETY INSTRUCTIONS

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.

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 accompanying the

appliance.

•

Explanation of Graphical Symbols

CAUTION

WARNING

TO REDUCE THE RISK OF FIRE OR

ELECTRIC SHOCK, DO NOT EXPOSE THIS

UNIT TO RAIN OR MOISTURE.

1. IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the

instructions contained in this manual, meets FCC

requirements. Modifications not expressly approved by

Yamaha may void your authority, granted by the FCC, to

use the product.

2. IMPORTANT : When connecting this product to

accessories and/or another product use only high quality

shielded cables. Cable/s supplied with this product

MUST be used. Follow all installation instructions.

Failure to follow instructions could void your FCC

authorization to use this product in the USA.

3. NOTE : This product has been tested and found to

comply with the requirements listed in FCC Regulations,

Part 15 for Class “B” digital devices. Compliance with

these requirements provides a reasonable level of

assurance that your use of this product in a residential

environment will not result in harmful interference with

other electronic devices.

This equipment generates/uses radio frequencies and, if

not installed and used according to the instructions

found in the users manual, may cause interference

harmful to the operation of other electronic devices.

Compliance with FCC regulations does not guarantee that

interference will not occur in all installations. If this product

is found to be the source of interference, which can be

determined by turning the unit “OFF” and “ON”, please try

to eliminate the problem by using one of the following

measures:

Relocate either this product or the device that is being

affected by the interference.

Utilize power outlets that are on different branch (circuit

breaker or fuse) circuits or install AC line filter/s.

In the case of radio or TV interference, relocate/reorient the

antenna. If the antenna lead-in is 300 ohm ribbon lead,

change the lead-in to coaxial type cable.

If these corrective measures do not produce satisfactory

results, please contact the local retailer authorized to

distribute this type of product. If you can not locate the

appropriate retailer, please contact Yamaha Electronics

Corp., U.S.A. 6660 Orangethorpe Ave, Buena Park, CA

90620.

The above statements apply ONLY to those products

distributed by Yamaha Corporation of America or its

subsidiaries.

English

Note to CATV system installer:

This reminder is provided to call the CATV system

installer’s attention to Article 820-40 of the NEC that

provides guidelines for proper grounding and, in

particular, 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.

SPECIAL NOTES FOR FCC COMPOSITE

DEVICE (for US customers only)

This device is a composite system. The digital device

component may not cause harmful interference.

19 For US customers only:

Outdoor Antenna Grounding – If an outside antenna is

connected to this unit, be sure the antenna system is

grounded so as to provide some protection against

voltage surges and built-up static charges. Article 810 of

the National Electrical Code, ANSI/NFPA 70, provides

information with regard 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

electrode.

EXAMPLE OF ANTENNA GROUNDING

MAST

GROUND

CLAMP

ANTENNA

LEAD IN

WIRE

ANTENNA

DISCHARGE UNIT

(NEC SECTION 810–20)

GROUNDING CONDUCTORS

(NEC SECTION 810–21)

GROUND CLAMPS

POWER SERVICE GROUNDING

ELECTRODE SYSTEM

(NEC ART 250. PART H)

ELECTRIC

SERVICE

EQUIPMENT

NEC – NATIONAL ELECTRICAL CODE

FCC INFORMATION (for US customers only)

YAMAHA and the Electronic Industries Association’s

Consumer Electronics Group want you to get the most out of

your equipment by playing it at a safe level. One that lets the

sound come through loud and clear without annoying blaring

or distortion – and, most importantly, without affecting your

sensitive hearing.

Since hearing damage from loud sounds is often

undetectable until it is too late, YAMAHA and the

Electronic Industries Association’s Consumer

Electronics Group recommend you to avoid

prolonged exposure from excessive volume levels.

We Want You Listening For A Lifetime (for US customers only)

CAUTION: READ THIS BEFORE OPERATING YOUR UNIT.

1. This unit is a sophisticated stereo tuner. To assure proper

operation and the best possible performance, please read

this manual carefully.

2. Choose the installation location for the unit 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, because this may result in

damage to the unit or electrical shock. If a foreign object

should get into the unit, contact your local dealer.

4. When not planning to use this unit for long periods of time

(ie., vacation, etc.), disconnect the AC power plug from the

wall outlet.

5. To prevent lightning damage, disconnect the AC power

plug and disconnect the antenna cable when there is an

electrical storm.

6. When disconnecting the power plug from the wall outlet,

always pull directly on the plug; never pull the cord itself.

7. Do not use force when operating switches and other

controls.

8. When moving the unit, be sure to first disconnect the

power plug and disconnect all wires connected from the

unit to other equipment.

9. Do not attempt to clean this unit with chemical solvents,

because this may damage the finish. Use a clean, dry

cloth.

10.Be sure to read the “TROUBLESHOOTING” section of this

manual for advice on common operating errors before

concluding that the unit is faulty.

11.Keep this manual in a safe place for future reference.

12.Voltage Selector (General Model only)

The voltage selector on the rear panel of this unit must

be set for your local main voltage BEFORE plugging

into the AC main supply.

Voltages are 110-120/220-240V AC, 50/60 Hz.

FREQUENCY STEP switch (General Model only)

Because the interstation frequency spacing differs in

different areas, set the FREQUENCY STEP switch (located

at the rear) according to the frequency spacing in your area.

Before setting this switch, disconnect the AC power plug of

this unit from the AC outlet.

The apparatus is not disconnected from the AC power

source as long as it is connected to the wall outlet, even if

the apparatus itself is turned off.

IMPORTANT

Please record the serial number of this unit in the space

below.

Serial No.:

The serial number is located on the rear of the unit.

Retain this Owner’s Manual in a safe place for future

reference.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR

MOISTURE.

FOR CANADIAN CUSTOMERS

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE

OF PLUG TO WIDE SLOT AND FULLY INSERT.

THIS CLASS B DIGITAL APPARATUS MEETS ALL

REQUIREMENTS OF THE CANADIAN INTERFERENCE-

CAUSING EQUIPMENT REGULATIONS.

English

Indoor FM Antenna

Audio connection cord

AM Loop Antenna

After unpacking, check that the following parts are contained.

•

40 Station Random Access Preset

Tuning

•

Automatic Preset Tuning

•

Multi-Status Station Memory

•

Direct PLL Synthesizer Tuning

•

Preset Station Shifting Capability

(Preset Editing)

SUPPLIED ACCESSORIES

FEATURES

Never plug in this unit and other components until all connections are completed.

ANTENNA CONNECTIONS

●

Each antenna should be connected to the designated terminals correctly, referring to the following figure.

●

Both AM and FM indoor antennas are included with this unit. In general, these antennas will probably provide sufficient signal

strength. Nevertheless, a properly installed outdoor antenna will give clearer reception than an indoor one. If you experience

poor reception quality, an outdoor antenna may result in improvement.

CONNECTIONS

Outdoor FM antenna

Outdoor AM antenna

AM loop

antenna

(included)

Ground

75-ohm

antenna

adapter

Indoor FM

antenna

(included)

75-ohm/300-ohm

antenna adapter

75-ohm

coaxial cable

300-ohm

feeder

75Ω UNBAL.

FM ANT GND AM ANT

English

m Optional outdoor FM antenna

Consult with your dealer or authorized service center about the

best method of selecting and erecting an outdoor FM antenna.

The choice of the feeder cable is also important. Flat ribbon-

shaped twin-lead cable performs well electrically, and is

cheaper and somewhat easier to handle when routing it

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 feeder

cable, particularly for foam-type coaxial cables. Coaxial cable

is somewhat more difficult to install at the point where the

cable enters the building. If coaxial cable is selected, make

sure the antenna is designed to be used with that type of

cable.

* Use a 75-ohm/300-ohm antenna adapter (not included) or a

75-ohm antenna adapter (not included) for connections.

300-ohm feeder cable 75-ohm coaxial cable

75-ohm/300-ohm antenna adapter

Notes for FM antenna installation

●

To minimize automobile ignition noise, locate the antenna

as far from heavy traffic as possible.

●

Keep the feeder cable or coaxial cable as short as possible.

Do not bundle or roll up excess cable.

●

The antenna should be at least two meters (6.6 feet) from

reinforced concrete walls or metal structures.

300-ohm feeder

cable

75-ohm coaxial

cable

75-ohm antenna

adapter

75-ohm coaxial

cable

Connecting the indoor FM antenna Connecting the AM loop antenna

* If you connect an outdoor FM antenna to this unit, do not connect the indoor FM antenna to this unit.

* The AM loop antenna should be placed apart from the main unit. The antenna may be hung on a wall.

* The AM loop antenna should be kept connected, even if an outdoor AM antenna is connected to this unit.

Orient so that the best

reception is obtained.

m Optional outdoor AM antenna

In steel buildings or at a great distance from the transmitter, it

may be necessary to install an outside long wire antenna.

GND terminal

For maximum safety and minimum interference, connect

the GND terminal to a good earth ground. A good earth

ground is a metal stake driven into moist earth.

1 2 3

CONNECTIONS TO THE AMPLIFIER

●

Before making any connections, switch OFF the power to

this unit and the amplifier or other component.

●

Be sure that the connections from the left (“L”) and right

(“R”) LINE OUT terminals are connected to the

corresponding (left and right) input terminals of the amplifier

or other component.

●

If you have a YAMAHA amplifier whose terminals on the

rear panel are numbered as 1, 2, 3, etc., connections can

be made easily by making sure to connect the LINE OUT

terminals of this unit to the input terminals of the amplifier

numbered 2.

NOTES ABOUT CONTROLLING THIS UNIT WITH THE REMOTE CONTROL

TRANSMITTER

This unit has a remote control sensor. It receives signals from

a remote control transmitter provided with a YAMAHA amplifier

or receiver.

Notes

●

There should be no large obstacles between the remote

control transmitter and the main unit.

●

If the remote control sensor is directly illuminated by strong

lighting (especially an inverter type of fluorescent lamp etc.),

it might cause the remote control transmitter not to work

correctly. In this case, reposition the main unit to avoid

direct lighting.

75Ω UNBAL.

FM ANT GND AM ANT

LINE OUT

TUNER

–dB

Amplifier

Connection cord (included)

This unit

To AC outlet

30°

Remote control

sensor

Within approximately

6 m (19.7 feet)

English

CONTROLS AND THEIR FUNCTIONS

FRONT PANEL

1 2

0789

3 4 5

NATURAL SOUND

AM/FM STEREO TUNER TX–492

POWER

A/B/C/D/E MEMORY EDIT FM/AM

TUNING MODE

MAN'L/AUTO FM AUTO/MAN'MONO

PRESET STATIONS

TUNING

DOWN UP

1 POWER switch

Press this switch to switch the power on. Press it again to

switch the power off.

2 Display panel

Shows station frequencies and various information. (Refer to

the next page for details.)

3 Remote control sensor

Receives signals from a remote control transmitter provided

with a YAMAHA amplifier or receiver.

4 PRESET STATIONS buttons

Select a preset station number (1 to 8).

5 TUNING DOWN and UP buttons

Used for tuning. Press the “UP” button to tune in to higher

frequencies, and press the “DOWN” button to tune in to lower

frequencies.

6 A/B/C/D/E button

Press this button to select a desired group (A–E) of preset

stations.

7 MEMORY (MAN’L/AUTO FM) button

When this button is pressed, the MEMO indicator flashes for

about 5 seconds. During this period, press the desired

PRESET STATIONS button to enter the displayed station into

the memory.

When this button is pressed and held for about 3 seconds, the

automatic preset tuning begins. (Refer to page 11 for details.)

8 EDIT button

This button is used to exchange the places of two preset

stations with each other.

9 FM/AM button

Press this button to switch the reception band to FM or AM.

0 TUNING MODE (AUTO/MAN’L MONO) button

Press this button to switch the tuning mode to automatic or

manual. To select the automatic tuning mode, press this

button so that “AUTO” lights up on the display. To select the

manual tuning mode, press this button so that “AUTO” goes

off.

DISPLAY PANEL

kHz

MHz

AUTO

MEMO

EDIT

2 4 53

1 Preset station indicator

Display the group (A/B/C/D/E) and the number (1 to 8) of a

preset station.

2 Station frequency display

Displays the band and frequency or information from the

received station.

3 AUTO indicator

Lights up when this unit is in the automatic tuning mode.

4 ST (STEREO) indicator

Lights up when an FM stereo broadcast with sufficient signal

strength is received.

5 Signal-level meter

Indicates the signal level of the received station.

If multipath interference is detected, the indication decreases.

6 MEMO indicator

When the MEMORY button is pressed, this indicator flashes

for about 5 seconds. During this period, the displayed station

can be programmed to the memory by using the A/B/C/D/E

button and one of the PRESET STATIONS buttons.

7 EDIT indicator

Flashes by the first press of the EDIT button when you will

exchange preset stations, and lights up for a moment by the

second press of the EDIT button to show that the exchange

has succeeded.

English

1 Turn the power on.

2 Select the reception band (FM or AM) confirming

it on the display.

4 Tune to a desired station manually.

* To continue tuning search, press and hold the button.

1 Turn the power on.

2 Select the reception band (FM or AM) confirming it on

the display.

To tune to a higher frequency, press the UP button.

To tune to a lower frequency, press the DOWN button.

* If the station where tuning search stops is not the desired

one, press again.

* If the tuning search does not stop at the desired station

(because the signals of the station are weak), change to

the MANUAL TUNING method.

TUNING OPERATIONS

Normally, if station signals are strong and there is no interference, quick automatic-search tuning (AUTOMATIC TUNING) is

possible. However, if signals of the station you want to select are weak, you must tune to it manually (MANUAL TUNING).

Note

If you tune to an FM station manually, it is received in monaural

mode automatically to increase the signal quality.

AUTOMATIC TUNING MANUAL TUNING

TUNING MODE

AUTO/MAN'MONO

TUNING MODE

AUTO/MAN'MONO

POWER

TUNING

DOWN UP

TUNING

DOWN UP

Turn “AUTO” off.

AUTO

NATURAL SOUND

AM/FM STEREO TUNER TX–492

POWER

A/B/C/D/E MEMORY EDIT FM/AM

TUNING MODE

MAN'L/AUTO FM AUTO/MAN'MONO

PRESET STATIONS

TUNING

DOWN UP

432

1 Tune to a desired station.

(Refer to the previous page for tuning procedure.)

2 Select a desired group (A – E) of preset stations

confirming it on the display.

4 Select a preset station number where you want to

program the station before “MEMO” goes off from the

display.

* In the same way, program other stations to A2, A3 ... A8.

* You can program more stations to preset station numbers

on other groups in the same way by selecting other groups

in step 2.

11 Select the group of preset stations.

22 Select the preset station number.

Notes

• A new setting can be programmed in place of the former

one.

• For presets, the setting of the reception mode (stereo or

monaural) is stored along with the station frequency.

Memory back-up

The memory back-up circuit prevents the programmed data

from being lost even if the POWER switch is set off or the

power plug is disconnected from the AC outlet or the power is

cut due to temporary power failure. If, however, the power is

cut for more than one week, the memory may be erased. If

so, it can be re-programmed by simply following the PRESET

TUNING steps.

MANUAL PRESET TUNING

This unit can store station frequencies selected by tuning operation. With this function, you can recall any desired station by only

selecting the preset station number where it is stored. Up to 40 stations (8 stations x 5 groups) can be stored.

PRESET TUNING

To store stations

To recall a preset station

MAN’L

AUTO FM

MEMORY

MEMO

Flashes on and off

for about 5 seconds.

Shows the displayed station has been

programmed to A1.

MHz

AUTO

PRESET STATIONS

NATURAL SOUND

AM/FM STEREO TUNER TX–492

POWER

A/B/C/D/E MEMORY EDIT FM/AM

TUNING MODE

MAN'L/AUTO FM AUTO/MAN'MONO

PRESET STATIONS

TUNING

DOWN UP

2, 11

4, 22

English

The automatic preset tuning begins from the frequency

currently displayed. Received stations are programmed to

A1, A2 ... A8 sequentially.

* If more than 8 stations are received, they are also

programmed to the preset station numbers on other groups

(B, C, D and E) in that order.

When the automatic preset tuning is finished

The display shows the frequency of the last preset station.

Check the contents and the number of preset stations by

following the procedure of the section “To recall a preset

station” on page 10.

To recall a preset station

Simply follow the procedure of the section “To recall a preset

station” on page 10.

A recalled station is shown by the frequency or station name on

the display.

Notes

●

You can replace a preset station by another FM or AM

station manually by simply following the procedure of the

section “To store stations” on page 10.

●

The automatic preset tuning search will be performed

through all frequencies until stations are stored up to E8. If

the number of received stations is not enough to be stored

up to E8, the search is finished automatically after searching

all frequencies.

●

With this function, only FM stations with sufficient signal

strength are stored automatically. If the station you want to

program is weak in signal strength, tune in to it with the

MANUAL TUNING method (in monaural) and program it by

following the procedure of the section “To store stations” on

page 10.

●

If no station is received by the automatic preset tuning

search, the search finishes after “NOTHING” flashes for

about 3 seconds on the display.

AUTOMATIC PRESET TUNING

You can also make use of an automatic preset tuning function for FM stations only. By this function, this unit performs automatic

tuning and stores FM stations with strong signals sequentially. Up to 40 stations are stored automatically in the same way as in the

manual preset tuning method on page 10.

To store stations

Press and hold for

about 3 seconds.

Flashes.

MAN’L

AUTO FM

MEMORY

MHz

AUTO

MEMO

NATURAL SOUND

AM/FM STEREO TUNER TX–492

POWER

A/B/C/D/E MEMORY EDIT FM/AM

TUNING MODE

MAN'L/AUTO FM AUTO/MAN'MONO

PRESET STATIONS

TUNING

DOWN UP

2 1

EXCHANGING PRESET STATIONS

You can exchange the places of two preset stations with each other as shown below.

Example)

If you want to shift the preset station on E1 to A5, and vice

versa.

1 Recall the preset station on E1 (by following the method

of “To recall a preset station” on page 10).

3 Next, recall the preset station on A5 by following the

same method with step 1.

Shows the exchange of stations is completed.

Flashes.

Lights up for a moment.

EDIT

MHz

EDIT

MHz

EDIT

NATURAL SOUND

AM/FM STEREO TUNER TX–492

POWER

A/B/C/D/E MEMORY EDIT FM/AM

TUNING MODE

MAN'L/AUTO FM AUTO/MAN'MONO

PRESET STATIONS

TUNING

DOWN UP

2, 4

English

TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple

measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and

contact your authorized YAMAHA dealer or service center for help.

SYMPTOM

Crackling sounds from time to time

(especially in weak signal areas).

FM stereo reception is noisy.

The ST indicator flickers and reception is

noisy.

There is distortion and clear reception

cannot be obtained even with a good FM

antenna.

No stereo effect even with a stereo

broadcast.

A desired station cannot be tuned in with

Automatic tuning.

Previously preset stations can no longer

be tuned in.

Insufficient sensitivity.

A desired station cannot be tuned in with

Automatic tuning.

There are continuous crackling and

hissing noises.

There are buzzing and whining noises

(especially in the evening).

CAUSE

Ignition noise from passing vehicles.

Noise from thermostats or other electrical

equipment.

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.

Insufficient antenna input.

Not tuned correctly.

There is multipath interference.

The TUNING MODE button is set to the

manual tuning mode.

The station is too weak.

The tuner has been unplugged for a long

period.

Weak signal or loose antenna connections.

These noises result from lightning,

fluorescent lamps, motors, thermostats and

other electrical equipment.

Another station is interfering with the

received station.

A television set is being used nearby.

REMEDY

The FM antenna should be put up as high

as possible, away from the road, and a

coaxial cable used.

Attach a noise suppressor to the equipment

causing the noise.

Check the antenna connections.

Try using a high quality directional FM

antenna.

Set the TUNING MODE button to the

manual tuning mode.

Use an antenna appropriate for the

reception condition in your area.

Tune again.

Adjust antenna placement to eliminate multi-

path interference.

Set the button so that “AUTO” lights up on

the display.

Use the manual tuning mode.

Use a high quality directional FM antenna.

Repeat the presetting procedure.

Tighten the AM loop antenna connections

and rotate it for best reception.

Use the manual tuning mode.

Use an outdoor antenna and a ground wire.

This will help somewhat but it is difficult to

eliminate all noises.

This is impossible to remedy.

Relocate this unit away from the TV.

SPECIFICATIONS

FM SECTION

Tuning Range

[U.S.A. and Canada models]...................87.5 to 107.9 MHz

[Australia model].........................................87.5 to 108 MHz

50 dB Quieting Sensitivity (IHF)

75 ohms Mono ........................................1.55 µV (15.1 dBf)

75 ohms Stereo ..........................................21 µV (37.7 dBf)

Image Response Ratio

[U.S.A. and Canada models].......................................40 dB

[Australia model]..........................................................80 dB

IF Response Ratio.............................................................70 dB

Spurious Response Ratio

[U.S.A. and Canada models].......................................60 dB

[Australia model]..........................................................70 dB

Alternate Channel Selectivity

[U.S.A. and Canada models only]................................85 dB

Selectivity (two signals, 40 kHz Dev., ±300 kHz)

[Australia model only] ..................................................70 dB

Signal-to-Noise Ratio

[U.S.A. and Canada models] (IHF)

Mono..........................................................................82 dB

Stereo........................................................................76 dB

[Australia model] (DIN-Weighted)

Mono .........................................................................75 dB

Stereo ......................................................................70 dB

Harmonic Distortion (1 kHz)

Mono ............................................................................0.1%

Stereo .........................................................................0.2%

Stereo Separation (1 kHz).................................................50 dB

Frequency Response

30 Hz to 13 kHz....................................................0±0.5 dB

AM SECTION

Tuning Range

[U.S.A. and Canada models] ........................530 to 1,710 kHz

[Australia model]...........................................531 to 1,611 kHz

Usable Sensitivity........................................................200 µV/m

Selectivity ..........................................................................32 dB

Signal-to-Noise Ratio.........................................................50 dB

Image Response Ratio......................................................40 dB

Spurious Response Ratio..................................................50 dB

Harmonic Distortion; 1 kHz.................................................0.3%

AUDIO SECTION

Output Level/Impedance (Fixed)

FM (100 % mod. 1 kHz).........................900 mV/2.2 k-ohms

AM (30% mod. 1 kHz)............................150 mV/2.2 k-ohms

GENERAL

Power Supply

[U.S.A. and Canada models]..........................AC 120V, 60 Hz

[Australia model].............................................AC 240V, 50 Hz

Power Consumption..............................................................7W

Dimensions (W x H x D)...............................435 x 86 x 278 mm

(17-1/8” x 3-3/8” x 10-15/16”)

Weight..........................................................3.2 kg (7 lbs. 1 oz.)

Accessories.............................................Audio connection cord

AM loop antenna

Indoor FM antenna

* Specifications subject to change without notice.

YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.

YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA

YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, F.R. OF GERMANY

YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE

YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND

YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN

YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA

VY76600 Printed in Malaysia

Yamaha TX-492 Инструкция по применению

Бренд: Yamaha

Модель: TX-492

Категория: Ресиверы

Тип: Инструкция по применению

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Yamaha TX-492 Инструкция по применению

Yamaha TX-492 Инструкция по применению

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