NAD Electronics L75 User Manual download pdf (Page 24)

• Try reducing the treble sound by turning the

treble controls.

• Try changing the location, height and/or

direction of the antenna.

• Set the FM mode to monaural by pressing the

FM MUTE/MONO button. (Note that the

broadcast will then be heard as monaural

sound).

• If an indoor antenna is being used, change to an

outdoor antenna.

• Try using an antenna with more elements.

TROUBLESHOOTING

To determine any problem with your receiver, always check the most obvious possible causes first. If any problem still remains after your have checked the items below,

consult your nearest NAD dealer.

Problem Probable Cause Remedy

Amplifier

When listening to the music in stereo, left/right

speakers sounds reversed.

Speakers are connected wrong. After checking, if needed, reconnect.

Low hum or buzzer sound. Power line of a fluorescent light is installed near this

product.

Place this product as far away as possible from

electric devices with interference.

Sound is only heard from one channel. One of the input cords is disconnected. The BALANCE control is set to one side.

Connect the input cords securely. Adjust the BALANCE control.

Sound cuts off during listening to the music or no

sound even though power is ON.

Speaker impedance is less than prescribed for this

unit.

After turning off the power and then turning it on

again, reduce the volume or change to the correct 8

ohm speakers.

Low bass response. Speaker polarity (+/-) is reversed. Check all speakers for correct polarity.

Tuner

An unusual hissing noise is heard when listening to

the broadcast in stereo, but not heard when

listening monaurally.

A slight noise may be heard because the method

used for modulation of FM stereo broadcasts is

different than that used for monaural broadcasts.

Noise is excessive in both stereo and monaural

broadcasts.

Poor location and / or direction of the antenna.

Transmitting station is too far away.

Sound is distorted and/or the volume level becomes

low.

Broadcast signals are being disturbed.

Excessive distortion in the sound of stereo

broadcasts.

Speaker system connections are not correct.

Surround Effects - Important The center and rear speakers only operate when the unit is set on a Surround Sound mode and the source material being played is

recorded or broadcast in Dolby Digital, DTS or Dolby Pro Logic surround sound. Stereo broadcasts or recordings will produce some rear channel effects when played in a

surround mode. However, mono sources will not produce any sound from the rear speakers.

No sound from the rear speakers. SURROUND MODE button is set to STEREO. Set the button to the desired surround mode

position.

Source being played is not recorded or broadcast in

surround sound or stereo.

Use surround or stereo source.

One or more rear speaker wires is not making good

contact.

Check all rear speaker wires for good connection.

No sound from the center speaker. SURROUND mode button is not set to DTS, DOLBY

DIGITAL, DOLBY PRO LOGIC or 3 STEREO.

Set the button to DTS, DOLBY DIGITAL, DOLBY PRO

LOGIC or 3 STEREO.

Remote Control Unit

Remote control not working. The batteries are exhausted. Replace with new batteries.

The remote control unit is too far from the receiver

or out of the effective range.

Operate the remote control unit within the effective

range.

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NAD Electronics L75 User Manual Page 24

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