General Troubleshooting - Linear Power 5002IQ Owner's Manual And Installation Manual

MOUNTING
1.The amplifier works best if it is kept as cool as possible. Mount in a position
that allows air to flow freely through the fins. Be sure there is ample space above
the amplifier to avoid trapping heated air rising from the amplifier. The amplifier
should not be mounted upside down. Avoid mounting any amplifier in the dash or
on the firewall to avoid noises being radiated directly onto the case.
2.The case of your amplifier is designed to act as a noise shield. To maintain this
protection, be sure the metal case of the amp does not touch the metal of the
car. Do not remove or damage the rubber grommets, which provide electrical
insulation and vibration isolation.

GENERAL TROUBLESHOOTING

NO SOUND: Check all connections. Check fuses. With a meter be sure there is
+12 Volts on the main power wire and the turn on wire, but not on the ground
wire. Check by substitution or other method for proper operation of music source.
BLOWS FUSE: Check all connections to be sure all power wires and speaker
wires do not touch ground or each other. Re-check polarity of main power wires.
SHUTS OFF: This amplifier is equipped with a thermal and short circuit
protection. In the unlikely event of excessive temperature or improper speaker
impedances, the amp will turn itself off. When the condition is corrected
(temperature decreases or speaker short is fixed), the amp will turn itself back
on. To avoid damage to the speakers, turn volume to a minimum while waiting for
the amp to turn itself back on.
NOISE TROUBLESHOOTING PROCEDURES
In most any car, the possibility of picking up unwanted noises can be reduced if
the installation is done properly. Keep the system's wiring away from the vehicles
wiring harness. Do not run the low level signal cables beside the power or ground
cables or next to the vehicle wiring harness. Attach the ground for the amplifier to
a clean, solid portion of the body or frame, as close to the amp as possible. Use
a good grade shielded cable for all low-level signals. Because of the
astronomical number of possible noise problems, a detailed solution to each and
every specific problem is impossible. Here we discuss the major noise types, and
try to proceed from cause and solution of each.
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