Yamaha Audio TX-470 User Manual

Natural Sound AM/FM Stereo Tuner

40 Station Random Access Preset Tuning

Automatic Preset Tuning for FM Stations

Thank you for selecting this YAMAHA stereo tuner.

TX-470

Multi-Status Station Memory

Rotary Encoder Tuning

Direct PLL Synthesizer Tuning

OWNER’S MANUAL

CONTENTS

Safety Instructions...................2

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

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

IMPORTANT!

Please record the serial number of this
unit in the space below.

Model:
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.

Tuning Operations ...................7

Preset Tuning...........................9

Troubleshooting.....................11

Specifications ........................12

WARNING

TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE
THIS UNIT TO RAIN OR MOISTURE.

CAUTION

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.

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 accompanying the
appliance.

SAFETY INSTRUCTIONS

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

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.

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18 Grounding or Polarization – Precautions should be taken

so that the grounding or polarization is not defeated.

19 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.

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.

CAUTION: READ THIS BEFORE OPERATING

YOUR UNIT

1 To ensure the finest performance, please read this

manual carefully. Keep it in a safe place for future
reference.

2 Install your unit in a cool, dry, clean place – away from

windows, heat sources, and too much vibration, dust,
moisture or cold. Avoid sources of hum (transformers,
motors). To prevent fire or electrical shock, do not
expose to rain and water.

3 Do not operate the unit upside-down. It may overheat,

possibly causing damage.

4 Never open the cabinet. If a foreign object drops into

the set, contact your dealer.

5 Do not use force on switches, knobs or cords. When

moving the set, first turn the unit off. Then gently
disconnect the power plug and the cords connecting to
other equipment. Never pull the cord itself.

6 Do not attempt to clean the unit with chemical solvents;

this might damage the finish. Use a clean, dry cloth.

7 To prevent lightning damage, pull out the power cord and

remove the antenna cable during an electrical storm.

FCC INFORMATION

8 Be sure to read the “TROUBLESHOOTING” section on

common operating errors before concluding that your unit
is faulty.

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.

We Want You Listening For A Lifetime

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.

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

SUPPLIED ACCESSORIES

After unpacking, check that the following parts are contained.

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.

Indoor FM Antenna

AM Loop Antenna

Audio connection cord

3

CONNECTIONS

75Ω UNBAL.

FM ANT GND AM ANT

Outdoor FM antenna

Indoor FM
antenna
(included)

Outdoor AM antenna

AM loop
antenna
(included)

Ground

75-ohm
antenna
adapter

75-ohm/300-ohm
antenna adapter

75-ohm
coaxial cable

300-ohm
feeder

75Ω UNBAL.

FM ANT GND AM ANT

Outdoor FM antenna

Indoor FM
antenna
(included)

Outdoor AM antenna

AM loop
antenna
(included)

Ground

75-ohm
antenna
adapter

75-ohm/300-ohm
antenna adapter

75-ohm
coaxial cable

300-ohm
feeder

75Ω UNBAL.

FM ANT GND AM ANT

Outdoor FM antenna

Indoor FM
antenna
(included)

Outdoor AM antenna

AM loop
antenna
(included)

Ground

75-ohm
antenna
adapter

75-ohm/300-ohm
antenna adapter

75-ohm
coaxial cable

300-ohm
feeder

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.

U.S.A., CANADA AND GENERAL MODELS U.K. MODEL

AUSTRALIA AND EUROPE MODELS

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