Yamaha Audio AX-870 User Manual

A X-1070/870
Natural Sound Stereo Integrated Amplifier
145W + 145W (8) RMS Output Power, 0.01% THD, 20–20,000 Hz <AX-1070> 110W + 110W (8) 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
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.
Insert the bare wire.
[Remove approx. 5mm (1/4”) insulation from the speaker wires.] Tighten the knob and
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.
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