Yamaha Audio AX-870 User Manual
A X-1070/870
Natural Sound Stereo Integrated Amplifier
145W + 145W (8Ω) RMS Output Power, 0.01% THD, 20–20,000 Hz <AX-1070>
110W + 110W (8Ω) RMS Output Power, 0.015% THD, 20–20,000 Hz <AX-870>
Increased Low Impedance Drive Capability
Continuously Variable Loudness Control
PURE DIRECT Switch to Reproduce the Purest Source Sound
SUBSONIC FILTER Switch to Cut Out Undesirable
Ultra-Low-Frequency Signals
PRE OUT/MAIN IN Terminals Useful for Connecting An Equalizer,
Sound Processor, etc.
Turnover Frequency Switch for Tone Controls
High Quality Components Parts
Remote Control Capability
Thank you for selecting this YAMAHA stereo integrated amplifier.
OWNER’S MANUAL
IMPORTANT!
Please record the serial number of this
CONTENTS
Safety Instructions ................... 2
Supplied Accessories .............. 3
Connections ............................. 4
Operations ............................... 6
Remote Control Transmitter ... 10
Notes about the Remote
Control Transmitter ................. 11
Troubleshooting ...................... 12
Specifications ......................... 13
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.
WARNING
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE
THIS UNIT TO RAIN OR MOISTURE.
<For AX-1070 only>
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
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.
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.
2
7 Always set the volume control to “– ∞” before starting
the audio source play: increase the volume gradually to
an appropriate level after the play is started.
8 To prevent lightning damage, pull out the power cord
and remove the antenna cable during an electrical
storm.
9 When not planning to use this unit for long periods
of time (ie., vacation, etc.), disconnect the AC power
plug from the wall outlet.
10 Be sure to read the “Troubleshooting” section on
common operating errors before concluding that your
unit is faulty.
11 Do not connect audio equipment to the AC outlets on
the rear panel if that equipment requires more power
than the outlets are rated to provide.
FCC INFORMATION
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 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.
SUPPLIED ACCESSORIES
After unpacking, check that the following parts are contained.
●
Remote Control Transmitter
●
Batteries (size AA, R6, UM-3)
3
CONNECTIONS
●
Before attempting to make any connections to or from this unit, be sure to first switch OFF the power to this unit and to any other
components to which connections are being made.
●
When making connections between this unit and other components, be sure all connections are made correctly, that is to say L
(left) to L, R (right) to R, “+” to “+” and “–” to “–”. Also, refer to the owner’s manual for each component to be connected to this
unit.
<AX-1070>
Compact disc player Tuner Tape deck 1 Tape deck 2
Right
(General model)
Speakers A
Left
Turntable
player, LD player,
etc.
* : Refer to “ABOUT THE ACCESSORY TERMINALS” on page 6.
Tape deck 3Video cassette
4
Right
To AC outlet
Left
Speakers B
<AX-870>
English
Compact disc playerTuner Tape deck 1 Tape deck 2
Right
(General model)
Speakers A
Left
Turntable
* : Refer to “ABOUT THE ACCESSORY TERMINALS” on page 6.
Video cassette
player, LD player,
etc.
Right
To AC outlet
Left
Speakers B
5
CONNECTING SPEAKERS
➁
➀
➂
Connect the SPEAKERS terminals to your speakers with wire
of the proper gauge, cut as short as possible. If the
connections are faulty, no sound will be heard from the
speakers. Make sure that the polarity of the speaker wires is
correct, that is, + and – markings are observed. If these wires
are reversed, the sound will be unnatural and will lack bass.
Do not let the bare speaker wires touch each other and do
not let them touch the metal parts of this unit as this could
damage this unit and/or speakers.
How to Connect:
Red: positive (+)
Black: negative (–)
Unscrew the knob.
➀
Insert the bare wire.
➁
[Remove approx. 5mm
(1/4”) insulation from
the speaker wires.]
Tighten the knob and
➂
secure the wire.
●
One or two speaker systems can be connected to this unit.
If you connect only one speaker system, connect it to either
the SPEAKERS A or B terminals.
●
Use speakers with the specified impedance shown on the
rear of this unit.
●
Banana Plug connections are also possible (except for
Scandinavian models). Simply insert the Banana Plug
connector into the corresponding terminal.
ABOUT THE A CCESSORY TERMINALS
AC OUTLETS (SWITCHED)
(Europe and General models)............3 SWITCHED OUTLETS
(Australia and U.K. models)..................1 SWITCHED OUTLET
Use these to connect the power cords from your components
to this unit.
The power to the SWITCHED outlets is controlled by this unit’s
POWER switch or the provided remote control transmitter’s
POWER key. These outlets will supply power to any
component whenever this unit is turned on.
The maximum power (total power consumption of
components) that can be connected to the SWITCHED AC
OUTLETS is 200 watts.
REMOTE CONTROL (PHONO) connector
If you have a YAMAHA turntable with a terminal for remote
control, connect it to this connector by using the cable provided
with the turntable. This connection allows you to control the
turntable from the provided remote control transmitter.
GND terminal (For turntable use)
Connecting the ground wire of the turntable to this terminal will
normally minimize hum, but in some cases better results may
be obtained with the ground wire disconnected.
PRE OUT/MAIN IN terminals
Removing the jumper pins enables this unit to independently
perform the functions of a control amplifier and a power
amplifier. These terminals are for connection of a signalprocessing system such as a graphic equalizer or sound
processor.
If a sound processor or other component is connected, the
VOLUME control of this unit can be used for overall
adjustment of the level of sound. To connect such a unit,
remove the jumper pins from the PRE OUT/MAIN IN terminals,
connect the inputs of that unit to the PRE OUT terminals and
its outputs to the MAIN IN terminals. For details, refer to the
owner’s manual included with the unit to be connected.
6
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