Yamaha Stereo Amplifier AX 1090 User Manual

AX-1090  
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  
 
Thank you for selecting this YAMAHA stereo amplifier.  
FEATURES  
CONTENTS  
145W + 145W (8) RMS Output Power, 0.01% THD,  
20–20,000 Hz  
High Dynamic Power, 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 for Connecting An  
Equalizer, Sound Processor, etc.  
Supplied Accessories .....................................................2  
Connections ...................................................................4  
Controls and Their Functions ..........................................6  
Operations ......................................................................9  
Notes about the Remote Control Transmitter ...............13  
Troubleshooting ............................................................14  
Specifications ...............................................................15  
Turnover Frequency Switch for Tone Controls  
High Quality Component Parts  
Remote Control Capability  
CAUTION: READ THIS BEFORE OPERATING YOUR UNIT.  
1. To assure the finest performance, please read this manual  
13. Voltage Selector (General Model only)  
carefully. Keep it in a safe place for future reference.  
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.  
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.  
Voltages are 110/120/220/240 V AC, 50/60 Hz.  
IMPORTANT  
Please record the serial number of this unit in the space below.  
3. Never open the cabinet. If something drops into the set, contact  
your dealer.  
Serial No.:  
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 wire itself.  
The serial number is located on the rear of the unit.  
Retain this Owner’s Manual in a safe place for future reference.  
WARNING  
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. Therefore, avoid placing objects against  
these openings, and install the unit in well-ventilated condition.  
Make sure to allow a space of at least 20 cm behind, on the both  
sides and above the top panel of the unit. Otherwise it may not  
only damage the unit, but also cause fire.  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO  
NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.  
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.  
6. Always set the VOLUME control to “–  
” before starting the  
audio source play: increase the volume gradually to an  
appropriate level after the play has been started.  
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  
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.  
10. To prevent lightning damage, disconnect the AC power plug and  
disconnect the antenna cable when there is an electrical storm.  
11. Grounding or polarization – Precautions should be taken so that  
the grounding or polarization of an appliance is not defeated.  
12. AC outlet  
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.  
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.  
If you have YAMAHA components numbered as 1, 2, 3, etc. on the rear panel, 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.  
Tape deck 2  
Compact disc player  
Tuner  
Tape deck 1  
Speakers A  
Right  
Left  
(General model)  
VOLTAGE SELECTOR  
2
TUNER  
1
CD  
3
TAPE  
PB  
COUPLER  
TAPE  
1
MAIN  
IN  
4
AC OUTLETS  
REC  
OUT  
PRE  
OUT  
3
SPEAKERS  
REMOTE  
TAPE  
PB  
CONTROL  
TAPE  
2
4
GND  
REC  
OUT  
A
B
A
B
3
TAPE  
PB  
PHONO  
TAPE  
3
PHONO  
4
REC  
OUT  
AUX  
SWITCHED  
A
A
OR B:6  
B:l2  
MIN./SPEAKER  
MIN./SPEAKER  
A
A
OR B:6  
B:l2  
MIN./SPEAKER  
MIN./SPEAKER  
200W MAX. TOTAL  
To AC outlet  
Right  
Left  
Turntable  
Video cassette player,  
LD player, etc.  
Tape deck 3  
Speakers B  
: Refer to “ABOUT THE OTHER REAR PANEL PARTS” on page 5.  
The maximum power (total power consumption of  
components) that can be connected to the SWITCHED AC  
OUTLETS is 200 watts.  
AC OUTLETS (3 SWITCHED OUTLETS)  
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.  
4
 
CONNECTING SPEAKERS  
Connect the SPEAKERS terminals to your speakers with wire  
of the proper gauge, cut as short as possible. If the  
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.  
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.  
<General model only  
>
Banana Plug connections are also possible. Simply insert  
the Banana Plug connector into the corresponding terminal.  
How to Connect:  
Red: positive (+)  
Black: negative (–)  
Unscrew the knob.  
Insert the bare wire.  
2
[Remove approx. 5mm  
(1/4”) insulation from  
the speaker wires.]  
Tighten the knob and  
secure the wire.  
1
3
ABOUT THE OTHER REAR PANEL PARTS  
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.  
COUPLER  
MAIN  
IN  
PRE  
OUT  
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.  
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.  
PRE OUT/MAIN IN terminals  
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.  
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.  
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.  
5
 
CONTROLS AND THEIR FUNCTIONS  
FRONT PANEL  
1 2  
3
4
5
6
VOLUME  
l6  
NATURAL SOUND STEREO AMPLIFIER AX 1090  
INPUT  
CD  
l8  
l4  
20  
l2  
24  
l0  
TAPE  
1
TUNER  
PHONO  
28  
34  
8
2
POWER  
PURE  
TAPE  
2
DIRECT  
6
4
40  
50  
60  
TAPE  
3
3
AUX  
l
70  
0
–dB  
PHONES  
SPEAKERS  
BASS  
DEFEAT  
TURNOVER FREQUENCY TREBLE  
DEFEAT  
SUBSONIC  
FILTER  
MODE  
BALANCE  
0
LOUDNESS  
FLAT  
REC OUT  
PHONO  
CD  
l
l
l
l
l
l
l
TUNER  
A
B
1
2/3  
–40dB  
TAPE COPY  
ON  
ON  
2
2
400Hz  
2.5kHz  
2
2
ON  
MONO  
2
2
2
10  
PHONO  
MC  
3
1/2  
3
3
3
3
3
3
3
9
AUX  
4
4
4
4
4
4
4
8
OFF  
OFF  
200Hz  
5kHz  
OFF  
STEREO  
MM  
5
5
5
5
L
5
5
R
5
7
6
7
8
9
0
A B C D  
E
F
G
1 POWER switch  
5 INPUT selector  
Press this switch to switch the power on. Press it again to  
switch the power off.  
Selects a program source to listen to.  
* Standby mode  
6 VOLUME control  
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 power indicator is half illuminated.)  
Used to raise or lower the volume level.  
* When the volume is decreased by pressing the MUTING key  
on the remote control transmitter, the indicator on the  
VOLUME control flashes on and off.  
2 Power indicator  
Lights up while the power is on.  
PHONES  
7 PHONES jack  
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.  
3 Remote control sensor  
Receives signals from the remote control transmitter.  
4 PURE DIRECT switch and indicator  
Press this switch so that the indicator lights up to listen to an  
audio source in the purest sound. (Refer to page 12 for  
details.)  
8 SPEAKERS switches  
Set the switch A or B (or both A and B) for the speaker system  
(connected to this unit) you will use to the ON position. Set the  
switch for the speaker system you will not use to the OFF  
position.  
6
 
9 BASS control  
Used to increase or decrease the low frequency response. The  
DEFEAT position produces flat response.  
0 TURNOVER FREQUENCY switches  
Used to adjust the turnover point of the BASS and TREBLE  
controls respectively. This gives you flexible control over bass  
and treble response characteristics.  
A TREBLE control  
Used to increase or decrease the high frequency response.  
The DEFEAT position produces flat response.  
B SUBSONIC FILTER switch  
Used to cut out undesirable ultra-low-frequency signals caused  
by turntable rumble or warped records without losing sound  
quality.  
C MODE switch  
This switch can be used for switching between stereo and  
monaural operation. Normally this switch should be set to the  
STEREO position.  
D BALANCE control  
Adjusts the balance of the output volume to the left and right  
speakers to compensate for sound imbalance caused by  
speaker location or listening room conditions.  
E Continuously variable LOUDNESS control  
Used to compensate for the human ears’ loss of sensitivity to  
high and low-frequency ranges at low volume.  
F REC OUT selector  
This switch can be used to select a program source and supply  
that source directly to the REC OUT terminals on the rear panel,  
independently of the setting of the INPUT selector. This function  
allows you to record the selected program source while listening  
to another program source.  
G PHONO (MM/MC) switch  
This switch can be used to select either the MM (moving  
magnet) or MC (moving coil) position to match the phono  
cartridge used. (Refer to page 12 for details.)  
7
 
REMOTE CONTROL TRANSMITTER  
The remote control transmitter provided with this unit is designed to control all the most commonly used functions of this unit. If the  
CD player, tuner, tape deck and turntable connected to this unit are YAMAHA components designed for remote control compatibility,  
then this remote control transmitter will also control various functions of each component.  
For Control of This Unit  
1 Input selector keys  
Selects input source.  
2 MUTING key  
When pressed, decreases the volume level by 20 dB. To  
resume original volume level, press this again.  
While muting, the indicator on the VOLUME control flashes on  
YAMAHA HIFI SYSTEM  
REMOTE CONTROL TRANSMITTER  
and off continuously.  
TAPE  
3
AUX  
3 VOLUME +/– keys  
PLAY  
DIR A  
DIR B REC/PAUSE  
TAPE  
2
1
Turns the volume level up/down.  
1
TAPE  
A/B  
4 POWER key  
A/B/C/D/E  
TUNER  
PRESET  
+
1
Turns the power on/off.  
2
3
PLAY  
DISC  
CD  
*
While the power is on, pressing the POWER key on the  
remote control transmitter switches the unit from the  
power-on mode to the standby mode, and vice versa. (In  
the standby mode, the power indicator on the front panel is  
half illuminated.)  
PLAY  
/CUT  
PHONO  
4
2
POWER  
VOLUME  
MUTING  
3
4
For Other Component Control  
Identify the remote control transmitter keys with your  
component’s keys. If these keys are identical, their functions  
will be the same. On each key function, refer to the  
corresponding instruction on your component’s manual.  
1 Tape deck keys  
Controls tape deck.  
DIR A, B and 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.  
2 Tuner keys  
Controls tuner.  
+: Selects higher preset station number.  
: Selects lower preset station number.  
A/B/C/D/E: Selects the group (A – E) of preset station  
numbers.  
3 CD player keys  
Controls compact disc player.  
DISC is applicable only to compact disc changer.  
*
4 Turntable key  
Starts/stops record play on turntable.  
8
 
OPERATIONS  
VOLUME  
INPUT  
CD  
l6  
l8  
l4  
20  
l2  
24  
l0  
TAPE  
1
TUNER  
PHONO  
7
1, 6  
28  
34  
8
2
POWER  
PURE  
TAPE  
2
DIRECT  
6
TAPE  
3
40  
50  
60  
4
3
AUX  
2
70  
l
0
–dB  
PHONES  
SPEAKERS  
BASS  
DEFEAT  
TURNOVER FREQUENCY TREBLE  
DEFEAT  
SUBSONIC  
FILTER  
MODE  
BALANCE  
LOUDNESS  
FLAT  
REC OUT  
PHONO  
0
CD  
A
B
l
l
l
l
l
l
l
–40dB  
10  
1
2/3  
TUNER  
TAPE COPY  
ON  
ON  
2
2
400Hz  
2.5kHz  
2
2
ON  
MONO  
2
2
2
PHONO  
MC  
3
1/2  
3
3
3
3
3
3
3
9
8
AUX  
4
4
4
4
4
4
4
OFF  
OFF  
200Hz  
5kHz  
OFF  
STEREO  
MM  
5
5
5
5
L
5
5
R
5
7
6
7
3
4
TO PLAY A SOURCE  
VOLUME  
l6  
Select the speakers to be used.  
1
4
l8  
l4  
20  
24  
l2  
l0  
28  
34  
8
SPEAKERS  
6
4
40  
50  
3
2
60  
70  
l
0
–dB  
Set to the “ ” position.  
If you use two speaker systems, press both the A and B  
switches.  
*
Turn the power on.  
2
3
POWER  
Play the source.  
5
6
VOLUME  
l6  
l8  
l4  
20  
l2  
24  
l0  
28  
34  
8
2
6
Select a desired input source.  
4
40  
50  
60  
3
l
70  
INPUT  
CD  
0
–dB  
TAPE 1  
TUNER  
PHONO  
TAPE 2  
Adjust to the desired output level.  
TAPE 3  
AUX  
If desired, adjust the BASS, TREBLE, BALANCE and  
LOUDNESS controls, etc. (Refer to page 11–12.)  
7
If you select turntable as an input source (PHONO  
*
position), you should confirm that the PHONO (MM/MC)  
switch is set to the position corresponding to the type of  
cartridge being used by the turntable. (Refer to page 12.)  
To turn off the power  
Press the POWER switch again.  
Caution  
If you will press the PURE DIRECT switch to turn it on when  
the LOUDNESS control is set at a position other than “FLAT”,  
be sure to decrease the volume by turning the VOLUME  
control counterclockwise before pressing the PURE DIRECT  
switch, otherwise the volume may become extremely high  
suddenly causing harm to your ears and damage to the  
speakers.  
9
 
VOLUME  
3, 5  
3
INPUT  
CD  
l6  
l8  
l4  
20  
l2  
24  
l0  
TAPE  
1
TUNER  
PHONO  
28  
34  
8
2
POWER  
PURE  
TAPE  
2
DIRECT  
6
40  
50  
60  
4
TAPE  
3
3
AUX  
70  
l
0
–dB  
PHONES  
SPEAKERS  
BASS  
DEFEAT  
TURNOVER FREQUENCY TREBLE  
DEFEAT  
SUBSONIC  
FILTER  
MODE  
BALANCE  
LOUDNESS  
FLAT  
REC OUT  
CD  
PHONO  
0
A
B
l
l
l
l
l
l
l
–40dB  
10  
1
2/3  
TUNER  
TAPE COPY  
ON  
ON  
2
2
400Hz  
2.5kHz  
2
2
ON  
MONO  
2
2
2
PHONO  
MC  
3
1/2  
3
3
3
3
3
3
3
9
8
AUX  
4
4
4
4
4
4
4
OFF  
OFF  
200Hz  
5kHz  
OFF  
STEREO  
MM  
5
5
5
5
L
5
5
R
5
7
6
1
TO RECORD A SOURCE TO TAPE (OR DUB  
FROM A TAPE TO ANOTHER)  
Notes  
Select the source to be recorded.  
If you want to enjoy another source while recording, select it  
with the INPUT selector.  
The settings of VOLUME, BASS, TREBLE, BALANCE,  
LOUDNESS controls and PURE DIRECT switch have no  
effect on the material being recorded.  
1
REC OUT  
CD  
TUNER  
1
2/3  
TAPE COPY  
PHONO  
3
1/2  
AUX  
REC OUT selector setting on tape dubbing  
2
3
Play the source.  
To dub from tape deck 1 to  
tape deck 2 or 3 (or both  
tape deck 2 and 3 at the  
same time)  
REC OUT  
Confirm the source by selecting it with the INPUT  
selector and turning up the VOLUME control.  
CD  
TUNER  
1
2/3  
TAPE COPY  
PHONO  
3
1/2  
AUX  
VOLUME  
INPUT  
l6  
l8  
l4  
20  
l2  
CD  
24  
TAPE 1  
l0  
TUNER  
PHONO  
To dub from tape deck 3 to  
tape deck 1 or 2 (or both  
tape deck 1 and 2 at the  
same time)  
28  
34  
8
2
TAPE 2  
6
REC OUT  
4
40  
50  
60  
TAPE 3  
CD  
TUNER  
1
2/3  
TAPE COPY  
3
PHONO  
3
1/2  
AUX  
AUX  
l
70  
0
–dB  
* Tape dubbing cannot be done from tape deck 2 to tape deck  
1 or 3.  
4
5
Set the tape deck to be used for recording in the  
recording mode.  
To monitor the sound to be recorded (or being  
recorded), select the tape deck being used for  
recording with the INPUT selector.  
INPUT  
CD  
TAPE 1  
TUNER  
PHONO  
TAPE 2  
TAPE 3  
AUX  
10  
 
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  
0
l
l
2
2
3
3
4
4
R
L 5  
5
Adjusting the BASS and TREBLE  
controls  
Adjusting the continuously variable  
LOUDNESS control  
This control provides compensation for the human ears’ loss of  
sensitivity to high and low-frequency ranges at low volume.  
This control is adjustable to retain full tonal range at any  
volume level.  
BASS  
TREBLE  
1
Set to the “FLAT” position.  
LOUDNESS  
0 dB  
0
BASS  
: Turn this clockwise to increase (or counter-  
clockwise to decrease) the low frequency  
response.  
9
8
7
6
TREBLE : Turn this clockwise to increase (or counter-  
clockwise to decrease) the high frequency  
response.  
2
Set to the loudest listening level that you would listen to.  
VOLUME  
l6  
l8  
l4  
20  
l2  
24  
l0  
28  
34  
8
TURNOVER FREQUENCY switches  
6
4
40  
50  
60  
3
These switches can be used to adjust the turnover point of the  
tone controls: either 200 Hz or 400 Hz for BASS and either 2.5  
kHz or 5 kHz for TREBLE. This gives you flexible control over  
bass and treble response characteristics.  
2
l
70  
0
–dB  
3
Turn until the desired volume is achieved.  
TURNOVER FREQUENCY  
LOUDNESS  
0 dB  
0
400Hz  
200Hz  
2.5kHz  
5kHz  
9
8
7
6
11  
 
Using the PURE DIRECT switch  
PHONO (MM/MC) switch  
You can enjoy the purest possible sound from your audio  
sources by setting this switch so that the indicator lights up. By  
doing so, the audio signals bypass the BASS, TREBLE,  
BALANCE, LOUDNESS controls, SUBSONIC FILTER switch,  
MODE switch and the PRE OUT/MAIN IN terminals, thus  
eliminating any alterations to the audio signals.  
Select either MM or MC position depending on your PHONO  
cartridge, Moving Magnet or Moving Coil type. However, if you  
use a high output MC cartridge, select MM position.  
To select the MC position, press this switch so that it is held  
inward. To select the MM position, press this switch so that it is  
released outward.  
PURE  
PHONO  
MC  
DIRECT  
MM  
Setting the SUBSONIC FILTER switch  
Setting the MODE switch  
If you set this switch to “ON” position, undesirable ultra-low-  
frequency signals caused by turntable rumble or warped  
records can be cut out without losing sound quality.  
This switch can be used for switching between stereo and  
monaural operation. Normally this switch should be set to the  
STEREO position.  
MODE  
SUBSONIC  
FILTER  
MONO  
ON  
STEREO  
OFF  
Open/close the control door  
When it is not necessary to operate controls inside the control  
door, close the door.  
To close the door  
To open the door  
12  
 
NOTES ABOUT THE REMOTE CONTROL TRANSMITTER  
Battery installation  
Remote control transmitter operation range  
2
Remote control  
sensor  
1
3
Within approximately  
6 m (19.7 feet)  
Battery replacement  
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.  
Notes  
Notes  
Use only AA, R6, UM-3 batteries for replacement.  
There should be no large obstacles between the remote  
control transmitter and the main unit.  
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 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.  
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.  
13  
 
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.  
Connect the cords properly. If the problem  
persists, the cords may be defective.  
Appropriate input source is not selected.  
Select an appropriate input source with the  
INPUT selector.  
The SPEAKERS switches are not set  
properly.  
Set the SPEAKERS switch which  
corresponds to the speakers to be used to  
the ON position.  
Speaker connections are not secure.  
Secure the connections.  
The sound suddenly goes off.  
The protection circuit has functioned 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.  
Sound level is low or sound is distorted  
while playing a record on the turntable.  
The LOUDNESS control is functioning.  
Set the LOUDNESS control to the FLAT  
position.  
The PHONO (MM/MC) switch is set to the  
improper position.  
Set the PHONO (MM/MC) switch to the  
proper position.  
The MUTING key is ON.  
First, turn the volume control to the full left.  
Then, turn the MUTING key OFF with the  
remote control transmitter and adjust the  
volume.  
Using the BASS, TREBLE, BALANCE,  
LOUDNESS controls, SUBSONIC FILTER  
switch and MODE switch does not affect  
the tone.  
The PURE DIRECT switch is ON.  
The PURE DIRECT switch must be switched  
OFF to use those controls.  
The volume level cannot be increased, or  
sound is distorted.  
The power to the component connected to  
the REC OUT terminals of this unit is off.  
Turn the power to the component on.  
Turn the power to this unit on.  
The sound is degraded when listening  
with the headphones connected to the  
compact disc player or cassette deck that  
are connected with this unit.  
The power to this unit is off.  
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.  
14  
 
SPECIFICATIONS  
Minimum RMS Output Power per Channel  
8 ohms, 20 Hz to 20 kHz, 0.01% THD  
..........................................145W+145W  
6 ohms, 20 Hz to 20 kHz, 0.02% THD  
..........................................185W+185W  
Headphone Jack Rated Output/ Impedance  
Output Level  
(8 ohms, 1 kHz, 0.015% THD).....1.05V  
Impedance.............................220 ohms  
Tone Control Characteristics  
BASS:  
Boost/cut.....................±10 dB (20 Hz)  
Turnover Frequency ........200, 400 Hz  
TREBLE:  
Frequency Response (20 Hz to 20 kHz)  
CD/TUNER/TAPE/AUX ............0±0.5 dB  
MAIN IN...................................0±0.5 dB  
Boost/cut...................±10 dB (20 kHz)  
Turnover Frequency............2.5, 5 kHz  
Dynamic Power per Channel  
(by IHF Dynamic Headroom measuring  
method)  
Filter Characteristics  
8/6/4/2 ohms.........220/290/360/460W  
RIAA Equalization Deviation  
(20 Hz to 20 kHz)  
SUBSONIC FILTER  
..................................15 Hz, –18 dB/oct  
DIN Standard Output Power per Channel  
[Europe model only]  
(4 ohms, 1 kHz, 0.7% THD).........250W  
PHONO MM ...........................±0.3 dB  
PHONO MC............................±0.5 dB  
Continuous Loudness Control  
(Level related equalization)  
Total Harmonic Distortion  
(20 Hz to 20 kHz)  
Attenuation ....................–40 dB (1 kHz)  
Dynamic Headroom  
[General model only]  
8/6 ohms......................1.81 dB/1.95 dB  
PHONO MM to REC OUT  
(3V) .........................................0.003%  
PHONO MC to REC OUT  
Audio Muting ................................–20 dB  
Gain Tracking Error (0 to –60 dB)....2 dB  
IEC Power (8 ohms, 1 kHz, 0.01% THD)  
[Europe model only]  
.....................................................170W  
(3V) .........................................0.007%  
CD/TUNER/TAPE/AUX to PRE OUT  
(1V) .........................................0.004%  
CD/TUNER/TAPE/AUX to SP OUT  
(72.5W/8 ohms) ......................0.007%  
MAIN IN to SP OUT  
Power Supply  
[Europe model] ..............AC 230V, 50 Hz  
[General model]  
Power Band Width  
8 ohms, 72.5W, 0.03% THD  
.....................................10 Hz to 50 kHz  
...........AC 110/120/220/240V, 50/60 Hz  
(72.5W/8 ohms) ......................0.005%  
Power Consumption.......................370W  
Damping Factor  
8 ohms, 20 Hz to 20 kHz  
...........................................350 or more  
Signal-to-Noise Ratio (IHF-A Network)  
PHONO MM (5 mV Input Shorted)  
.................................................... 92 dB  
PHONO MC (500 µV Input Shorted)  
.................................................... 75 dB  
CD (Input Shorted)  
(PURE DIRECT; ON)...............110 dB  
TUNER/TAPE/AUX (Input Shorted)  
(PURE DIRECT; ON)...............106 dB  
AC Outlets  
3 SWITCHED OUTLETS  
....................................200W max. total  
Input Sensitivity/Impedance  
Dimensions (W x H x D)  
..............................435 x 171 x 448 mm  
(17-1/8” x 6-3/4” x 17-5/8”)  
PHONO MM.............2.5 mV/47 k-ohms  
PHONO MC ..............160 µV/220 ohms  
CD/TUNER/TAPE/AUX  
................................150 mV/47 k-ohms  
MAIN IN........................1.0V/47 k-ohms  
Weight...................18.3 kg (40 lbs. 4 oz.)  
Residual Noise (IHF-A Network)  
CD (PURE DIRECT; ON).............40 µV  
TUNER/TAPE/AUX  
Accessories...Remote control transmitter  
Batteries  
Maximum Input Signal  
(1 kHz, 0.01% THD)  
PHONO MM............................170 mV  
PHONO MC...........................13.5 mV  
(PURE DIRECT; ON)...................80 µV  
Specifications subject to change without  
notice.  
Channel Separation (Vol. –30 dB)  
PHONO MM/MC (Input Shorted  
Output Level/Impedance  
REC OUT...............150 mV/2.2 k-ohms  
PRE OUT ....................1.0V/1.8 k-ohms  
1 kHz/10 kHz)....................70 dB/55 dB  
CD/TUNER/TAPE/AUX (Input 5.1 k-ohms  
Terminated 1 kHz/10 kHz)  
Maximum Voltage Output  
...........................................65 dB/50 dB  
20 Hz to 20 kHz, 0.02% THD.........6.5V  
15  
 
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  
VU 60520  
 

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