DS18 NXL-m2 Kullanıcı El Kitabı - Sayfa 16

Amplifikatör DS18 NXL-m2 için çevrimiçi göz atın veya pdf Kullanıcı El Kitabı indirin. DS18 NXL-m2 19 sayfaları. Ipx5 grade marine/boat amplifier

NXL-m amps

TROUBLESHOOTING

Before removing your amplifier refer to the list below and follow the suggested procedures.

Always test the speakers and their wires first.

AMPLIFIER WON'T POWER UP

• Check for good ground connection.

• Check that remote DC terminal has at least 10V DC.

• Check that there is battery power on the + terminal.

• Check all FUSES.

• Check that Protection LED is not lit. IF it is lit, shut off amplifier briefly and then re-power it.

HIGH HISS OR ENGINE NOISE (ALTERNATOR WHINE) IN SPEAKERS

Disconnect all RCA inputs to the amplifier, if hiss noise disappears, then plug in the component

driving the amplifier and unplug lts inputs. If hiss noise disappears, go on until the faulty/noisy

component is found. Itis best to set the amplifier input level as insensitive as possible. "The

best subjective S/N ratio is obtainable this way. Try to drive as high a signal level from the head

unit as possible.

PROTECTION LED COMES ON WHEN THE AMPLIFIER IS POWERED UP

Check for shorts on speaker leads. Check that volume control on the head unit is turned down

low. Remove speaker leads, and reset the amplifier f the Protection LED still comes on, then

the amplifier is faulty. The amplifier will shut down automatically when the units:

temperature goes up to 85*C This will protect the units from damage.

AMPLIFIER GETS VERY HOT

Check that the minimum speaker impedance for that model is correct. Check for speaker

shorts. Check that there is good airflow around the amplifier. In some applications, an external

cooling fan may be required.

DISTORTED SOUND

Check that the Level controls is set to match the signal. level of the head unit. Check that all

crossover frequencies have been properly set. Check for shorts on the speaker leads.

HIGH SQUEAL NOISE FROM SPEAKERS

This is always caused by a poorly grounded RCA wire.