Yamaha Stereo Amplifier AX 10 User Manual

AX-10  
Natural Sound Stereo Integrated Amplifier  
Préampli/ampli de puissance stéréo de la série “Natural Sound”  
Natural Sound Stereo-Verstärker  
Natural Sound Integrerad Stereo Förstärkare  
Amplificatore integrato stereo a Suono Naturale  
Amplificador integrado estéreo de Sonido Natural  
Natural Sound Geïntegreerde Stereo Versterker  
OWNER’S MANUAL  
MODE D’EMPLOI  
BEDIENUNGSANLEITUNG  
BRUKSANVISNING  
MANUALE DI ISTRUZIONI  
MANUAL DE INSTRUCCIONES  
GEBRUIKSAANWIJZING  
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Thank you for selecting this YAMAHA stereo amplifier.  
FEATURES  
CONTENTS  
70W + 70W (8) RMS Output Power,  
0.03% THD, 20–20,000 Hz  
High Dynamic Power, Low Impedance Drive  
Capability  
PURE DIRECT Switch to Reproduce the Purest  
Source Sound  
PRE OUT/MAIN IN Terminals Useful for Connecting  
An Equalizer, Sound Processor, etc.  
Remote Control Capability  
Supplied Accessories .....................................................2  
Caution ...........................................................................3  
Connections ...................................................................4  
Operations ......................................................................6  
Remote Control Transmitter ...........................................9  
Notes about the Remote Control Transmitter .........................10  
Troubleshooting ............................................................11  
Specifications ...............................................................12  
CAUTION: READ THIS BEFORE OPERATINGYOUR UNIT.  
1. To assure the finest performance, please read this manual  
IMPORTANT  
carefully. Keep it in a safe place for future reference.  
Please record the serial number of this unit in the space below.  
2. Install this unit in a cool, dry, clean place – away from windows,  
heat sources, sources of excessive vibration, dust, moisture and  
cold. Avoid sources of humming (transformers, motors). To  
prevent fire or electrical shock, do not expose the unit to rain or  
water.  
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  
3. Never open the cabinet. If something drops into the set, contact  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO  
NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.  
your dealer.  
4. Do not use force on switches, controls or connection wires. When  
moving the unit, first disconnect the power plug and the wires  
connected to other equipment. Never pull the wires themselves.  
CAUTION (FOR CANADA MODEL)  
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF  
PLUG TO WIDE SLOT AND FULLY INSERT.  
5. The openings on the cabinet assure proper ventilation of the unit.  
If these openings are obstructed, the temperature inside the  
cabinet will rise rapidly and eventually damage the circuits.  
Therefore, avoid placing objects against these openings and do  
not install the unit where the flow of air through the ventilation  
openings could be impeded.  
FOR CANADIAN CUSTOMER  
THIS DIGITAL APPARATUS DOES NOT EXCEED THE “CLASS B”  
LIMITS FOR RADIO NOISE EMISSIONS FROM DIGITAL  
APPARATUS SET OUT IN THE RADIO INTERFERENCE  
REGULATION OF THE CANADIAN DEPARTMENT OF  
COMMUNICATIONS.  
6. Always set the VOLUME control to “0” before starting the audio  
source play: increase the volume gradually to an appropriate level  
after the play has been started.  
For U.K. customers  
If the socket outlets in the home are not suitable for the plug  
supplied with this appliance, it should be cut off and an  
appropriate 3 pin plug fitted. For details, refer to the  
instructions described below.  
7. Do not attempt to clean the unit with chemical solvents; this might  
damage the finish. Use a clean, dry cloth.  
8. Be sure to read the “TROUBLESHOOTING” section regarding  
Note: The plug severed from the mains lead must be  
destroyed, as a plug with bared flexible cord is hazardous if  
engaged in a live socket outlet.  
common operating errors before concluding that the unit is faulty.  
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.  
SPECIAL INSTRUCTIONS FOR U.K. MODEL  
IMPORTANT:  
10. To prevent lightning damage, disconnect the AC power plug and  
The wire in the mains lead are coloured in accordance with  
the following code:  
disconnect the antenna cable when there is an electrical storm.  
11. Grounding or polarization – Precautions should be taken so that  
Blue: NEUTRAL  
Brown: LIVE  
the grounding or polarization of an appliance is not defeated.  
12. AC outlet  
The colours of the wires in the mains lead of this apparatus  
may not correspond with the coloured markings identifying  
the terminals in your plug. Proceed as follows: the wire  
which is coloured BLUE must be connected to the terminal  
which is marked with the letter N or coloured BLACK. The  
wire which is coloured BROWN must be connected to the  
terminal which is marked with the letter L or coloured RED.  
Making sure that neither core is connected to the earth  
terminal of the three pin plug.  
Do not connect audio equipment to the AC outlet on the rear panel  
if that equipment requires more power than the outlet is rated to  
provide.  
13. 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.  
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.  
3
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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.  
* For a system connection with YAMAHA CDX-10, TX-10 and KX-10, connections can be made easily by making sure to connect  
the output (or input) terminals of each component to the same-numbered terminals of this unit.  
Speakers A  
Turntable  
Left  
Right  
Video cassette player,  
LD player, etc.  
Compact disc player  
AUDIO OUT  
(Europe model)  
GND  
1
R
L
CD  
AUX  
L
R
SPEAKERS  
3
PHONO  
L
R
+
+
TAPE  
PB  
TAPE 1  
REC  
2
A
B
OUT  
TUNER  
AC OUTLETS  
4
SWITCHED  
l00W MAX. TOTAL  
PRE  
OUT  
TAPE  
PB  
TAPE 2  
MAIN  
IN  
REC  
OUT  
A OR B : 6MIN./SPEAKER A + B : l2MIN./SPEAKER  
COUPLER  
To AC outlet  
Right  
Left  
Tape deck 2  
Tape deck 1  
Tuner  
Speakers B  
*
: Refer to “ABOUT THE ACCESSORY  
TERMINALS” on page 5.  
4
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CONNECTING SPEAKERS  
Connect the SPEAKERS terminals to your speakers with wire  
of the proper gauge, cut as short as possible. If the  
How to Connect:  
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.  
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.  
2
One or two speaker systems can be connected to this unit.  
If you connect only one speaker system, connect it to either  
1
the SPEAKERS A or B terminals.  
Use speakers with the specified impedance shown on the  
rear of this unit.  
3
ABOUT THE ACCESSORY TERMINALS  
AC OUTLETS (SWITCHED)  
PRE OUT/MAIN IN terminals  
Use these to connect the power cords from your components  
to this unit.  
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 signal-  
processing system such as a graphic equalizer or sound  
processor.  
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 100 watts.  
If a sound processor or other external unit is connected  
between these terminals, 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.  
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  
COUPLER  
Notes  
If you will not use the PRE OUT/MAIN IN terminals, never  
remove the jumper pins from these terminals. If removed,  
no sound will be output from this unit.  
If you will use this unit with an external unit connected  
between the PRE OUT and MAIN IN terminals, make sure  
that the PURE DIRECT switch on the front panel is turned  
off.  
If you will use this unit as a power amplifier, connect the  
outputs of an external control amplifier etc. to this unit’s  
MAIN IN terminals. In that case, this unit’s controls will not  
function except the PHONES jack and the SPEAKERS  
switches, so use the controls on the external control  
amplifier to make volume adjustment etc.  
5
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OPERATIONS  
2
3 1, 6  
4
7
TO PLAY A SOURCE  
Select the speakers to be used.  
VOLUME  
1
4
SPEAKERS  
A
ON  
B
ON  
FF  
OFF  
0
l0  
Set to the “0” position.  
If you use two speaker systems, press both the A and B  
switches.  
*
2
3
POWER  
POWER  
Play the source.  
5
6
Lights up.  
VOLUME  
Select a desired input source.  
INPUT  
CD  
TAPE 1  
TAPE 2  
TUNER  
PHONO  
0
l0  
AUX  
Adjust to the desired output level.  
If desired, adjust the BASS, TREBLE and BALANCE  
controls or turn on the PURE DIRECT switch. (Refer to  
page 8.)  
7
To turn off the power  
Press the POWER switch again.  
6
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3, 5 3  
1
TO RECORD A SOURCE TO TAPE (OR DUB FROM A TAPE TO ANOTHER)  
Select the source to be recorded.  
1
4
Set the tape deck to be used for recording in the  
recording mode.  
REC OUT  
CD  
5
To monitor the sound to be recorded, select the tape  
deck being used for recording with the INPUT selector.  
TAPE 1  
TAPE 2  
TUNER  
PHONO  
AUX  
INPUT  
CD  
TAPE 1  
TAPE 2  
TUNER  
PHONO  
AUX  
2
3
Play the source.  
Confirm the source by selecting it with the INPUT  
selector and turning up the VOLUME control.  
Notes  
INPUT  
If you want to enjoy another source while recording, select it  
with the INPUT selector.  
CD  
TAPE 1  
TAPE 2  
TUNER  
PHONO  
VOLUME, BASS, TREBLE, BALANCE controls and PURE  
DIRECT switch settings have no effect on the material being  
recorded.  
AUX  
VOLUME  
0
l0  
When you listen with headphones  
Connect the headphones to the PHONES jack. When listening  
with headphones privately, set both the SPEAKERS A and B  
switches to the OFF position.  
PHONES  
7
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Adjusting the BALANCE control  
Selecting the SPEAKER system  
Adjust the balance of the output volume to the left and right  
speakers to compensate for sound imbalance caused from  
speaker location or listening room conditions.  
Because one or two speaker systems can be connected to this  
unit, the SPEAKERS switches allow you to select speaker  
system A or B, or both at once.  
SPEAKERS  
BALANCE  
A
B
ON  
ON  
OFF  
OFF  
L
R
Using the PURE DIRECT switch  
Adjusting the BASS and TREBLE  
controls  
You can enjoy the purest possible sound from your audio  
sources by pressing this switch so that the PURE DIRECT  
indicator lights up. By doing so, the audio signal bypasses the  
BASS, TREBLE, BALANCE controls and the PRE OUT/MAIN  
IN terminals, eliminating any alterations to the audio signal.  
BASS  
TREBLE  
0
0
+
+
PURE  
DIRECT  
BASS  
: Turn this clockwise to increase (or counter-  
clockwise to decrease) the low frequency  
response.  
PURE  
DIRECT  
TREBLE : Turn this clockwise to increase (or counter-  
clockwise to decrease) the high frequency  
response.  
Lights up.  
Open/close the control door  
When it is not necessary to operate controls inside the control  
door, close the door.  
To open the door  
To close the door  
8
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REMOTE CONTROL TRANSMITTER  
The remote control transmitter provided with this unit is designed to control all the most commonly used functions of the unit. If the  
CD player, tuner and tape deck connected to this unit are YAMAHA components, then this remote control transmitter will also control  
various functions of each component.  
KEY FUNCTIONS  
For Control of This Unit  
PHONO  
POWER  
Turns the power on/off.  
SKIP  
PLAY  
CD  
SEARCH  
DISC SKIP  
PAUSE/STOP  
PRESET  
+
DECK A/B  
PLAY  
A/B/C/D/E TUNER  
Selects input source.  
DIR A  
DIR B  
REC MUTE  
TAPE 1  
TAPE 2  
REC/PAUSE  
STOP  
AUX  
+
VOLUME  
Turns the volume level up/down.  
For Other Component Control  
Identify the remote control transmitter keys with your component’s keys. If these keys are identical, their function will be the  
same. On each key function, refer to the corresponding instruction on your component’s manual.  
PHONO  
POWER  
SKIP  
PLAY  
CD  
Controls compact disc player.  
*
DISC SKIP is applicable only to  
SEARCH  
DISC SKIP  
PAUSE/STOP  
compact disc changer.  
PRESET  
+
DECK A/B  
PLAY  
A/B/C/D/E TUNER  
Controls tuner  
* + : Selects higher preset station  
number.  
: Selects lower preset station number.  
A/B/C/D/E: Selects the page (A – E) of  
preset stations.  
Controls tape deck.  
DIR A  
DIR B  
REC MUTE  
TAPE 1  
TAPE 2  
*
DIR A, B and DECK A/B are  
applicable only to double  
cassette tape deck.  
*
For a single cassette deck with  
automatic reverse function,  
pressing DIR A will reverse the  
direction of tape running.  
REC/PAUSE  
STOP  
AUX  
+
VOLUME  
9
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Standby mode  
While the power is on, pressing the POWER key on the remote  
control transmitter switches the unit to the Standby mode. (In  
this mode, the indicator is half illuminated.)  
POWER  
POWER  
Note  
The POWER switch on the front panel of this unit should  
be turned off when left unused for a long period of time.  
Standby mode  
POWER on mode  
NOTES ABOUT THE REMOTE CONTROL TRANSMITTER  
Battery installation  
Remote control transmitter operation range  
1
Remote control  
sensor  
3
2
Within approximately  
6 m (19.7 feet)  
Battery replacement  
Notes  
There should be no large obstacles between the remote  
If you find that the remote control transmitter must be used  
closer to the main unit, the batteries are weak. Replace both  
batteries with new ones.  
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.  
Notes  
Use only AA, R6, UM-3 batteries for replacement.  
Be sure the polarities are correct. (See the illustration inside  
the battery compartment.)  
Remove the batteries if the remote control transmitter will  
not be used for an extended period of time.  
If batteries leak, dispose of them immediately. Avoid  
touching the leaked material or letting it come in contact with  
clothing, etc. Clean the battery compartment thoroughly  
before installing new batteries.  
10  
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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  
CAUSE  
REMEDY  
The unit fails to turn on when the POWER  
switch is pressed.  
Power cord is not plugged in or is not  
completely inserted.  
Firmly plug in the power cord.  
No sound.  
Incorrect output cord connections.  
Appropriate input source is not selected.  
Speaker connections are not secure.  
Connect the cords properly. If the problem  
persists, the cords may be defective.  
Select an appropriate input source with the  
INPUT selector.  
Secure the connections.  
The sound suddenly goes off.  
The protection circuit has activated because  
of short circuit etc.  
Turning the unit off and then on will reset the  
protection circuit.  
Only one side speaker outputs the sound.  
Incorrect setting of the BALANCE control.  
Incorrect cord connections.  
Adjust it to the appropriate position.  
Connect the cords properly. If the problem  
persists, the cords may be defective.  
There is a lack of bass, and no ambience.  
Sound “hums”.  
The + and – wires are connected in reverse  
at the amplifier or speakers.  
Connect the speaker wires in the correct  
phase (+ and –).  
Incorrect cord connections.  
Firmly connect the audio plugs. If the  
problem persists, the cords may be defective.  
No connection from the turntable to the GND  
terminal.  
Make the GND connection between the  
turntable and this unit.  
Using the BASS, TREBLE and BALANCE  
controls does not affect the tone.  
The PURE DIRECT switch is ON.  
The PURE DIRECT switch must be switched  
OFF to use those controls.  
The remote control transmitter does not  
work.  
Direct sunlight or lighting (of an inverter type  
of flourescent lamp etc.) is striking the  
remote control sensor of the main unit.  
Change position of the main unit.  
The distance or range within which the  
remote control transmitter can be used  
decreases.  
The batteries of this remote control  
transmitter are too weak.  
Replace the batteries with new ones.  
11  
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SPECIFICATIONS  
Minimum RMS Output Power per Channel  
Total Harmonic Distortion (20 Hz to 20 kHz)  
8 ohms, 20 Hz to 20 kHz, 0.03% THD ...................70W+70W  
6 ohms, 20 Hz to 20 kHz, 0.06% THD ...................80W+80W  
PHONO MM to REC OUT (3V) ................................0.005%  
CD/TUNER/TAPE/AUX to PRE OUT (1V) ................0.008%  
CD/TUNER/TAPE/AUX to SP OUT (35W/8 ohms)....0.025%  
Dynamic Power per Channel  
(by IHF Dynamic Headroom measuring method)  
8/6/4/2 ohms.............................................95/117/140/200W  
Signal-to-Noise Ratio (IHF-A Network)  
PHONO MM (5 mV Input Shorted)............................. 88 dB  
CD (PURE DIRECT: ON)........................................... 110 dB  
DIN Standard Output Power per Channel  
(4 ohms, 1 kHz, 0.7% THD)  
Residual Noise (IHF-A Network)  
[Europe model only]....................................................100W  
CD (PURE DIRECT: ON)............................................. 50 µV  
IEC Power (8 ohms, 1 kHz, 0.03% THD)  
Channel Separation (Vol. –30 dB)  
[Europe model only]......................................................77W  
PHONO MM/MC (Input Shorted 1 kHz/10 kHz)63 dB/52 dB  
CD/TUNER/TAPE/AUX (Input 5.1 k-ohms Terminated  
1 kHz/10 kHz) ...................................................65 dB/50 dB  
Power Band Width  
8 ohms, 35W, 0.03% THD..........................10 Hz to 40 kHz  
Tone Control Characteristics  
Damping Factor  
BASS: Boost/cut ..........................................±10 dB (20 Hz)  
TREBLE: Boost/cut....................................±10 dB (20 kHz)  
8 ohms, 20 Hz–20 kHz...................................................150  
Input Sensitivity/Impedance  
Gain Tracking Error (0 – –60dB)........................................3 dB  
PHONO MM............................................2.5 mV/47 k-ohms  
CD/TUNER/TAPE/AUX...........................150 mV/47 k-ohms  
MAIN IN ......................................................1.0V/10 k-ohms  
Power Supply  
[U.K. model] ................................................AC 240V, 50 Hz  
[Europe model]............................................AC 230V, 50 Hz  
[General model] ................AC 110/120/220/240V, 50/60 Hz  
Maximum Input Signal (1 kHz, 0.005% THD)  
PHONO MM .............................................................120 mV  
Power Consumption ........................................................170W  
Output Level/Impedance  
REC OUT ..............................................150 mV/2.6 k-ohms  
PRE OUT....................................................1.0V/1.5 k-ohms  
AC Outlets  
SWITCHED OUTLETS...............................100W max. total  
Headphone Jack Rated Output/ Impedance  
Dimensions (W x H x D) .....................280 x 118.5 x 388.5 mm  
(11” x 4-11/16” x 15-5/16”)  
Output Level (8 ohms, 1 kHz, 0.03% THD).................0.47V  
Impedance ............................................................390 ohms  
Weight ......................................................8.2 kg (18 lbs. 1 oz.)  
Frequency Response (20 Hz to 20 kHz)  
CD/TUNER/TAPE/AUX...........................................0±0.5 dB  
MAIN IN .................................................................0±0.5 dB  
Accessories ....................................Remote control transmitter  
Batteries  
RIAA Equalization Deviation (20 Hz to 20 kHz)  
PHONO MM ..........................................................0±0.5 dB  
Specifications subject to change without notice.  
12  
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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, D-2084 RELLINGEN BEI HAMBURG, F.R. OF GERMANY  
YAMAHA ELECTRONIQUE FRANCE S.A. 17 RUE DES CAMPANULES, LOGNES 77321 MARNE LA VALLEE CEDEX 2, 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  
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