Yamaha Troubleshooting Tips for Stereo Amplifiers

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TROUBLESHOOTING

The sound is

The power of this unit is turned off, or this

Turn on the power of this unit.

 

degraded when

unit is set to the standby mode.

 

 

listening with the

 

 

 

headphones

 

 

11

connected to the CD

 

 

 

 

 

player or the tape

 

 

 

deck connected to

 

 

 

this unit.

 

 

 

 

 

 

 

The sound level is

The LOUDNESS control is functioning.

Set the LOUDNESS control to the FLAT position.

13

low.

 

 

 

 

 

 

 

 

 

The input source

The CD/DVD DIRECT AMP switch is

Turn off the CD/DVD DIRECT AMP switch.

13

cannot be changed

turned on.

 

 

 

although the INPUT

 

 

 

The TAPE MONITOR function is turned

Turn off the TAPE MONITOR function.

 

selector is rotated.

4

on.

 

 

 

 

 

 

 

 

Using the BASS,

The CD/DVD DIRECT AMP switch (or

The CD/DVD DIRECT AMP switch (or the PURE

 

TREBLE, BALANCE

the PURE DIRECT switch for AX-497

DIRECT switch for AX-497 only) must be turned off

 

and LOUDNESS

only) is turned on.

to use those controls.

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controls does not

 

 

 

 

 

affect the tonal

 

 

 

quality.

 

 

 

 

 

 

 

Remote control

Problem

Cause

Remedy

Refer to

page

 

 

 

 

 

 

 

The remote control

Wrong distance or angle.

The remote control will function within a maximum

6

does not work nor

 

range of 6 m (19.7 ft) and no more than 30 degrees

function properly.

 

off-axis from the front panel.

 

 

 

 

 

 

Direct sunlight or lighting (from an

Reposition this unit.

 

 

inverter type of fluorescent lamp, etc.) is

 

 

striking the remote control sensor of this

 

 

 

 

 

unit.

 

 

 

 

 

 

 

The batteries are weak.

Replace all batteries.

6

 

 

 

 

INFORMATION

ADDITIONAL

 

 

17

Image 21
Contents AX-497/AX-397 Serial No Important Safety InstructionsFCC Information for US customers Pour LES Consommateurs Canadiens For Canadian CustomersContents Supplied Accessories FeaturesAX-497 AX-397Standby indicator PowerControls and Functions Front panelOpening and closing the front panel Door Remote control Controlling this unitControlling other components Handling the remote control Impedance Selector switch Rear panelAsia and General models only Connections Connecting speakers and other componentsTurntable Tuner Tape deck, etc VCR, etcConnecting the banana plug Connecting the AC power supply cord Connecting the power supply cordIndicator of the selected input source lights up Press Power on the front panel inward to the on positionPlaying and Recording Playing a sourceStandby indicator lights up Adjusting the tonal quality Recording a source to a tape or an MD Begin recording on the tape deck or the MD recorder General TroubleshootingRemote control Power Section SpecificationsControl Section GeneralWG02700

AX-397, AX-497 specifications

The Yamaha AX-497 and AX-397 are two notable integrated amplifiers from Yamaha's renowned hi-fi audio lineup, designed to deliver exceptional sound quality and performance for audiophiles and music enthusiasts alike. While both models share a strong foundation, they exhibit distinct features and technologies that cater to different listening preferences.

The Yamaha AX-497 is the more advanced of the two, boasting a power output of 80 watts per channel at 8 ohms, which provides ample power for driving various speakers effectively. The AX-497 utilizes Yamaha's proprietary ToP-ART (Total Purity Audio Reproduction Technology) design, which focuses on preventing signal degradation and ensuring a clean, natural sound. This model features a discrete amplifier configuration, providing lower distortion levels and a more dynamic soundstage.

One of the standout features of the AX-497 is its comprehensive tone control system. Users can finely adjust the bass, treble, and balance, allowing for personalized sound tailored to individual preferences and room acoustics. Additionally, the AX-497 includes a direct input for bypassing tone controls during critical listening sessions, effectively providing an uncolored sound reproduction.

On the other hand, the Yamaha AX-397 offers a slightly reduced power output of 60 watts per channel at 8 ohms, making it suitable for smaller speaker systems and listening environments. Despite this lower output, the AX-397 still maintains an impressive sound quality, thanks to a similar ToP-ART design that ensures purity in audio reproduction.

The AX-397 is equipped with a high-quality phono stage, allowing for a seamless connection with turntables, which is becoming increasingly popular among vinyl enthusiasts. Additionally, it features a simple yet elegant user interface with easy-to-use controls for volume, input selection, and tone adjustments.

Both models utilize a robust build quality, reflecting Yamaha's commitment to durability and longevity. The sleek design of the amplifiers complements any audio setup, adding a touch of sophistication.

In summary, the Yamaha AX-497 and AX-397 integrated amplifiers are distinguished by their power outputs, features, and target users. The AX-497 is ideal for those seeking higher power and extensive control over sound, while the AX-397 suits casual listeners who appreciate quality sound in a more compact form. Regardless of the choice, both amplifiers exemplify Yamaha's dedication to delivering superior audio experiences.