B2 Audio SLD5K Owner's Manual - Page 11

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Troubleshooting

The protection circuits of the ampli er prevents severe damages from faulty conditions & improper use.

The protection indicatior will switch on due to short circuit connection & speaker overload, thus the ampli er will be turned o .

Prior to inspecting the occurred problem, turn all levels down & all power o , then carefully check the installation for

wiring mistakes, shorts or faulty ground (GND). If the ampli er shuts down due to excessive heat, the protection indicator will

light up; please allow time for the unit to be cooled o . Before removing your ampli er, refer to the list below and follow the

suggested procedures step by step. If not at ease, contact an authorized installer which can assist you.

AMPLIFIER DOESN'T TURN ON

Measure voltage on the +12V terminal.

Ensure that the remote terminal has min. 13.8 V DC remote connection.

Recheck the ground (GND) connection. Inspect the in-line fuses.

Check the protection LED is not on.

PROTECTION LED IS LIT ONCE THE AMPLIFIER IS TURNED ON

Check shorts on speaker wires & the connected load / impedance. Check power cables & GND.

Disconnect the speaker cables and reset the amplifier.

High / Low voltage, operation voltage is 10 V ~ 18 V+. Voltages below / beyond this will cause the amplifier to go into protect.

FUSE BLOWING

Measure the speaker impedance & that it is in accordance with the configuration.

Inspect the power cable for shorts along with vehicle chassis.

OVERHEATING

Measure the speaker impedance & that it is in accordance with the configuration.

Check speaker shorts.

Ensure airflow around the amplifier is sufficient & that the amplifier is not installed in

areas of excessive vibration & upside down!

AUDIO OUTPUT INSUFFICIENT - DISTORTED SOUND

Ensure that the gain settings on the amplifier is matched with the output level of the head unit.

Adjust the head unit volume.

Check speaker shorts.

Adjust the crossover frequencies in accordance with the setup.

If no output at all, check the RCA connections & the cable itself.

TURN ON THUMP

Disconnect the signal input to the amplifier, then turn it on and off.

a) If the noise is cancelled, then connect a delay turn on module on the REM wire running from

the source unit to the amplifier.

b) Use another 12V source for REM lead to the amplifier. If the noise is cancelled, use a relay

to isolate the amplifier from the turn on thump.

HIGH HISS-ENGINE NOISE IN SPEAKERS

Ensure that all signal transferring wires (RCA, speaker cables etc) are kept seperately / away from

the power and the ground wires.

Bypass all electrical components between the Head unit and the amplifier.

Connect the Head unit directly to the amplifier's input. If the noise is eliminated, the unit bypassed

is the one causing the noise.

Remove the existing ground wires for all electrical components installed. Ensure that the point of

ground is 100% metal which has been grinded free of rust, paint etc.

Replace the ground cable from the OEM battery / alternator and ensure it is grounded accordingly.

Test the battery and alternator load (can be carried out by a professional).

Ensure that the vehichle's electrical system is in a good condition, this includes distributor, alternator,

spark plugs / wires, voltage regulators etc.

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