TROUBLESHOOTING

Incorrect operations are often mistaken for trouble and malfunctions. If you think that there is something wrong with this component, check the points below. Sometimes the trouble may lie in another component. Investigate the other components and electrical appliances being used.

If the trouble cannot be rectified even after exercising the checks listed below, ask your nearest PIONEER authorized service center or your dealer to carry out repair work.

Symptom

 

Cause

 

Remedy

 

 

 

 

No power supplied to unit.

Ö

Power plug is disconnected from outlet.

Ö Insert plug securely into outlet.

 

Ö The amplifier’s power plug has been plugged

Ö Turn on power to other component.

 

 

into another component’s power outlet (e.g.

 

 

 

 

timer, etc.) but power to that unit is discon-

 

 

 

 

nected.

Ö Insert the AC INLET plug securely till the

 

Ö The AC INLET plug is disconnected.

 

 

 

 

bottom of the jack.

 

 

 

 

 

No sound.

Ö

Connecting cords are disconnected from ter-

Ö

Connect securely.

 

 

minals, or connected incorrectly.

Ö Clean terminals and plugs.

 

Ö Terminals, or connecting cords pin plugs are

 

Ö

dirty.

Ö Set the button to OFF.

 

The TAPE2 MONITOR button is set to ON

 

 

(except when using an adaptor component).

Ö

 

 

Ö Operation of other components is incorrect.

Consult the operating instructions for

 

Ö

 

Ö

the other components.

 

The position of the INPUT SELECTOR does

Set the button correctly (CD, TUNER,

 

 

not match the component to be played back.

 

PHONO, LINE, TAPE1/CD-R/MD).

 

Ö SPEAKERS button is set to OFF.

Ö Set the button to ON.

 

 

 

 

 

No sound from one speaker.

Ö

Connecting cords or speaker cords are discon-

Ö

Connect securely.

 

 

nected on that side.

Ö

 

 

Ö BALANCE control is set to one side.

Set BALANCE control to center posi-

 

 

 

 

tion.

 

 

 

 

 

Cannot record tapes.

Ö

Connections are incorrect.

Ö

Reconnect properly.

 

Ö Operation of cassette deck is incorrect.

Ö

Consult the operating instructions for

 

 

 

 

the cassette deck.

 

Ö The TAPE2 MONITOR button is set to ON.

Ö Set the TAPE2 MONITOR button to OFF.

 

 

 

 

Cannot perform tape copy-

Ö

The position of the INPUT SELECTOR knob

Ö Set buttons correctly. (See section

ing.

 

and TAPE2 MONITOR button are incorrect

 

COPYING TAPES.)

 

 

(when using 2 cassette decks).

Ö

 

 

Ö Operation of cassette decks is incorrect.

Consult the operating instructions for

 

 

 

 

the cassette decks.

 

 

 

 

 

Abnormal functioning of this unit may be cased by, static electricity, or other external interference. To restore normal operation, turn the power off and then on again, or unplug the AC power cord and then plug it in again.

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Pioneer A-109 manual Troubleshooting, Symptom Cause Remedy No power supplied to unit

A-109 specifications

The Pioneer A-109 is a well-regarded integrated stereo amplifier that stands out for its combination of quality sound, performance, and user-friendly features. Designed with audiophiles and music enthusiasts in mind, the A-109 showcases Pioneer’s commitment to delivering excellence in audio products.

One of the primary features of the A-109 is its powerful amplification capabilities. This model is equipped with a robust output stage, providing substantial power to drive a wide range of speakers. With 100 watts per channel at 8 ohms, the A-109 ensures that users can experience dynamic sound performance, whether they are listening to soft acoustic melodies or high-energy rock anthems. The amplifier’s low distortion levels further enhance the listening experience, delivering clean and accurate sound reproduction.

The A-109 incorporates advanced technologies designed to optimize audio signals. One such technology is the high-current drive capability, which allows for better performance with demanding speaker loads. Additionally, the use of high-quality components, including premium capacitors and resistors, contributes to improved audio fidelity and longevity. Pioneer's proprietary Circuit Design minimizes interference and noise, allowing for a clearer soundstage.

In terms of connectivity, the Pioneer A-109 is versatile. It offers multiple inputs, including phono, line, and digital inputs, making it compatible with a variety of audio sources, such as turntables, CD players, and streaming devices. The amplifier also features a headphone output, which allows for private listening sessions without sacrificing sound quality.

User accessibility is another strong point for the A-109. The amplifier comes with a clear and straightforward control layout that makes adjustments easy. The user interface includes features such as a smooth volume knob, tone controls for bass and treble, and a balance control for fine-tuning audio output. With its elegant design, the A-109 seamlessly fits into any audio setup, enhancing both functionality and aesthetics.

Durability and reliability are also crucial characteristics of the Pioneer A-109. Built with a sturdy chassis, this amplifier is designed to withstand the rigors of regular use while maintaining operability and sound performance. Overall, the Pioneer A-109 serves as an excellent choice for individuals looking to enrich their audio experiences through high-quality amplification, adaptability, and user-friendliness, making it a valued addition to any home audio system.