Bedienungsanleitung Ground zero GZPA 2.20000SPL-HC (Seite 11 von 18) (Deutsch)

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Connections

Please read owner’s manual of your car before you disconnect the battery.

+12 Volt (Fused) Constant power: To Battery (+)

Use a strong power cable (50 mm²) for connection the +12V terminals of the amplifier to the + terminal of your

battery.

It is necessary to install 2 (GZPA 1.10000SPL-HC) or 4 (GZPA 2.20000SPL-HC) In-line fuse holders with a

maximum distance of 20 cm to your battery to ensure a safe operation of the amplifier. Make sure the fuses are

not connected when connecting the + cable to the battery- this could cause defects on the device or injuries.

Ground

Disconnect the battery and connect the ground terminals tot he vehicle chassis. Is absolute necessary, that the

same wire-cross section is used for the ground and +12 V connection. Use s ground wire that is as short as

possible (about 25 cm / 10”). To avoid ignition noise caused by ground loops, it is necessary that the amplifiers

be grounded to a clean, bare metal surface of the vehicles chassis.

Remote

Connect the Remote terminal with the remote output of your head unit or another 12 V source like your antenna

terminal.

Turning on your amplifier

The amplifier automatically turns on a few seconds after you turn your vehicle’s ignitions switch to ACC ON or

turn on your auto sound system, depending on how you wired the system.

Note: Your amplifier temporarily shuts down if it gets too hot, then restarts automatically once it cools down.

The input level must be adjusted correctly to provide a good performance of the amplifier (200mV – 10V).

Adjusting the audio level / Input sensitivity

Step 1 Turn the input level controller fully to MIN in counterclockwise direction.

Step 2 Turn the auto sound system’s volume control to about two-third of its full range.

Step 3 Adjust the auto sound system’s volume control to a comfortable listening level.

Please note – The gage on a CD, that reproduces music with a higher dynamic is essential higher as on Radio

reception.

Trouble shooting

This power amplifier has protection features to prevent any damages from misuse or faulty

conditions. If the unit senses excessive heat, short circuited speakers or overload, the protection

indicators will light, and the system will be turned off. In order to check the occurred problem,

you should turn all levels down and all power off and carefully check the installation for wiring

mistakes or short. If the amplifier shuts down due to excessive heat, the protection indicators will

not light : simply allow time for the unit to cool.

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

Always test the speakers and their wires first.

Problem Check points

Amplifier is

not powered up

•

Check that there is battery power on the +12V

terminal.

• Check that remote terminal has at least +12V

DC remote connection.

• Check a good ground connection. Check all

fuses.

•

Check the protection LED is not lit.

Protection LED

illuminates when

amplifier is powered up

• Check shorts on speaker wires.

• Remove speaker wires and reset the amplifier.

If the protection LED still comes on, then the

amplifier is faulty.

Fuse blowing

•

Check that the minimum speaker impedance is

correct.

• Check short on power cable and vehicle

chassis.

Overheating

•

Check that the minimum speaker impedance is

correct.

• Check speaker shorts.

• Check that there is a good airflow around the

amplifier.

Sound too low /

Distorted sound

•

Check that the input level control is set to

match the output level of the unit.

• Check the head unit volume.

• Check speaker shorts.

• Check that crossover frequencies have been

properly set.

High hiss /

engine noise

in speakers

•

Check a good ground and for speaker shorts.

• Disconnect all RCA inputs from the amplifier.

If hiss/noise disappears, check it with a good

RCA interconnect. Then check the component

driving the amplifier.

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