Troubleshooting

Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions below do not help, turn off this unit, disconnect the power cable, and contact the nearest authorized Yamaha dealer or service center.

Problem

Cause

Remedy

See

page

 

 

 

 

 

 

 

This unit fails to turn

The power cable is not connected to the

Connect the power cable firmly.

17

on.

AC IN inlet on the rear panel or not

 

 

plugged in the AC wall outlet.

 

 

 

 

 

 

 

The protection circuitry has been activated

Check that the speaker wires are not touching each

14

 

because of a short circuit, etc.

other or shorting out against the rear panel of this

 

 

unit, and then turn the power of this unit back on.

 

 

 

 

 

 

This unit has been exposed to a strong

Turn off this unit, disconnect the power cable, plug it

 

external electric shock (such as lightning

back in after 30 seconds, and then use it normally.

 

or strong static electricity).

 

 

 

 

 

 

The POWER indicator

The protection circuitry has been activated

Check that the speaker wires are not touching each

14

on the front panel

because of a short circuit, etc.

other or shorting out against the rear panel of this

flashes.

 

unit, and then turn the power of this unit back on.

 

 

 

 

 

 

There is a problem with the internal

Disconnect the power cable and contact the nearest

 

circuitries of this unit.

authorized Yamaha dealer or service center.

 

 

 

 

 

 

The INPUT indicator

The protection circuitry has been activated

Check that the speaker wires are not touching each

 

on the front panel

because of a short circuit, etc.

other or shorting out against the rear panel of this

 

flashes and the

 

unit, and then turn the power of this unit back on.

14

volume is turned

 

 

 

 

 

down when you turn

 

 

 

on this unit.

 

 

 

 

 

 

 

No sound.

Incorrect input or output cable

Connect the cables properly. If the problem persists,

14

 

connections.

the cables may be defective.

 

 

 

 

 

 

 

No appropriate input source has been

Select an appropriate input source with the INPUT

9, 12

 

selected.

selector on the front panel (or one of the input

 

 

selector buttons on the remote control).

 

 

 

 

 

 

The SPEAKERS switch is not set

Switch the SPEAKERS switch to the appropriate

7

 

properly.

position.

 

 

 

 

 

 

 

Speaker connections are not secure.

Secure the connections.

14

 

 

 

 

The sound suddenly

The protection circuitry has been activated

Check that the speaker wires are not touching each

14

goes off.

because of a short circuit, etc.

other or shorting out against the rear panel of this

 

 

unit, and then turn the power of this unit back on.

 

 

 

 

 

Only the speaker on

Incorrect cable connections.

Connect the cables properly. If the problem persists,

14

one side can be

 

the cables may be defective.

 

 

heard.

 

 

 

Incorrect setting for the BALANCE

Set the BALANCE control to the appropriate

8

 

 

control.

position.

 

 

 

 

 

 

There is a lack of bass

The + and – wires are connected in

Connect the speaker wires to the correct + and –

14

and no ambience.

reverse at the amplifier or the speakers.

phase.

 

 

 

 

 

A “humming” sound

Incorrect cable connections.

Connect the audio cable plugs firmly. If the problem

14

is heard.

 

persists, the cables may be defective.

 

 

 

 

 

 

 

No connection from the turntable to the

Connect the turntable to the GND terminal of this

14

 

GND terminal.

unit.

 

 

 

 

 

 

24 En

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Yamaha A-S1000 owner manual Troubleshooting, 24 En

A-S1000 specifications

The Yamaha A-S1000 is a dedicated integrated amplifier that embodies exceptional craftsmanship, advanced technology, and an undying commitment to audio fidelity. Designed to cater to audiophiles, the A-S1000 combines vintage aesthetics with contemporary features, making it an attractive addition to any hi-fi setup.

One of the standout features of the A-S1000 is its robust power output. With a total of 90 watts per channel at 8 ohms, it delivers a dynamic range that can effortlessly drive a variety of speakers. This power is balanced with the amplifier’s high-current capability, ensuring that even the most demanding musical passages are reproduced accurately without distortion. The A-S1000's high-efficiency design ensures minimal energy loss, further enhancing its performance.

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Another notable characteristic is the A-S1000’s high-quality components. The amplifier features a high-damping factor, which means better control over speaker motion, resulting in cleaner bass response and a more coherent sound. Furthermore, its premium-grade capacitors and heavy-duty construction contribute to its stability and longevity.

For connectivity, the A-S1000 is well-equipped with a range of inputs including phono, line, and digital sources. The inclusion of a dedicated phono stage allows vinyl enthusiasts to connect their turntables directly, enjoying the warm, rich sound that analog records provide. Additionally, the model supports pure direct mode, which bypasses unnecessary circuitry for a more direct signal, catering to audiophiles seeking the purest listening experience.

The A-S1000 also sports a beautifully designed aluminum front panel, which not only adds a touch of elegance but also enhances durability. The large, graduated knobs and clear display make operation intuitive, allowing users to adjust settings with precision.

In summary, the Yamaha A-S1000 is a quintessential integrated amplifier that merges powerful performance with aesthetic appeal. Its commitment to sound quality, combined with innovative technologies and versatile connectivity options, positions it as a worthy choice for anyone serious about high-fidelity audio. Whether powering a home theater system or a dedicated two-channel setup, the A-S1000 delivers an immersive listening experience that honors the true essence of music.