BLAM Live LA 1000 Руководство пользователя - Страница 7

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TROUBLE SHOOTING

This amplifier has multi-layer protection features to prevent

damage from misuse or faulty conditions to ensure a long-lasting

life of your investment. If the unit senses excessive heat, short

circuited speakers, overload, or voltage fluctuation outside of the

working range the protection indicator light will turn red and the

unit will turn off.

In order to solve this problem, you should turn all levels down,

power off the unit, then carefully check the installation for

wiring mistakes or shorts. If the amplifier is excessively warm the

protection light will not turn on as the unit will turn off to protect

itself from overheating. Let the unit cool down for 30 minutes and

try again. If the unit work, try moving the amplifier or make sure

nothing is covering it so it can vent heat off of the heatsink. Before

you remove or uninstall the amplifier, refer to the list below for

suggested solutions.

Amplifier doesn't turn on or not output:

• Check the fuse(s), not just visually, but with a continuity meter

and all 12+ volt, remote and ground connection. It is possible for a

fuse to have poor internal connections, take the fuse out of the

holder for testing.

• Check the input signal from the source unit using an AC voltmeter

to measure the voltage while it's being played. The voltage should

be from 0.3 to 15 volts from the RCA cables.

• Check to ensure that the speaker wires are making a good

connection to the amplifier and the subwoofers.

Amplifier goes into protection:

• Check the chassis ground connections.

• Check amplifier controls for errors, input level or crossover

setting.

• Check the speaker wires for a possible short, either between the

positive and negative leads or between a speaker lead and the

vehicle's chassis ground.

• Check the nominal load impedance to verify that the amplifier is

driving a load equal or greater than 1 Ω.

• Check the input signal cables to make sure a signal is present

at the amplifier inputs and the cables are not pinched or loose.

It may be helpful to try a different set of cables/or a different

signal source to be sure.

• Check speaker wiring for reverse polarity.