ARC Audio X2 850.5 Manuale d'uso - Pagina 3

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Recommendations for all Class D amplifiers

Class D amplifiers, by the nature of there design, can emit a certain amount of Radio Frequency (RF) noise. While we

have optimized the design to reduce this to a minimum, there are still steps you can take to eliminate unwanted FM radio

interference. The tips below apply to all class D amplifiers.

•

Always mount the amplifier as far from the radio antenna as the installation will allow.

•

Keep the amplifier away from the radio or any other electronics that may prove to be sensitive to RF noise.

•

Make the ground wire as short as possible.

•

Use twisted pair wires as much as possible. If possible, all the speaker wire and input cables should be twisted. If you

do not have twisted pair wire you may be able to twist it yourself.

•

If you encounter a problem with FM interference you can try turning the amplifier 90 degrees or changing its location

completely. RF noise can be very directional.

Warning!

Take extra care when using CCA (Copper Clad Aluminum) or pure aluminum wire. Ensure all connections are clean and

tight. Due to the highly reactive nature of aluminum, electrical connections can fail without the typical "Green" or tarnished

look you would expect with copper. Aluminum also has a greater rate of expansion due to heat and care must be taken to

ensure that connections are not over tightened. This can result in the failure of the power or ground connector and cause

damage to your amplifier.

Where possible, always use all-copper conductors for power, ground and speaker wire connections to reduce the potential

for connection problems.

Diagnostic Fault Codes

All ARC Audio X2-Series amplifiers feature microprocessor controlled error reporting to help your installer diagnose

potential issues. The following chart explains what each of the error codes mean.

Thermal Error (Heatsink)

The Ampli er has Over Heated. Turn the volume down and let it cool o

Thermal Error (Transformer)

The Power Supply Transformer has Over Heated. Turn the volume down and let it cool o .

Code 11 Under Voltage

The Battery Voltage is too low. Check your battery, alternator and wiring.

Code 12 Short (Low Power Channel)

Shorted speaker or wire on Channels 1-4. Turn the system o unill you can get this fault corrected. Also includes internal shorts.

Code 13 Repeated Shorts

You didn't turn the system o , did you? See Code 12

Code 14 Over Voltage

Your Alternator is producing too much voltage. Have your vehicle's electrical system tested right away.

Code 15 DC Output Protection

DC Current was detected on the speaker outputs. To avoid damaging the speakers, this ampli er has shut down. This will probably require factory service.

Code 16 Short (High Power Channel)

Shorted speaker or wire on subwoofer channels (5 or 5-6) also includes internal shorts.

Normal Turn on

Blue is good. This is the normal start-up self test and turn-on delay.

Power/Processor Reset

You will see this the rst time the ampli er is powered up or after the microprocessor resets. This code will vary from model to model.

Speaker Level Input Pigtails

All ARC Audio X2-Series amplifiers include a set of high-level speaker input RCA pigtails. These pigtails include a resistive

voltage divider network to reduce the signal from a high-power source unit or factory amplifier so that it can be used with

the differential Inputs on your X2-Series Amp. The following outlines the polarity of the connections for the input pigtails.

Long

Short

Flash

Short

Flash

Short

Flash

Short

Flash

Short

Flash

Short

Flash

Short

Flash

Short

From Head Unit Right Speaker Output

From Head Unit Left Speaker Output

Long

Short

Flash

Short

Flash

Long

Flash

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