Final System Check; Troubleshooting - Clarion APX290M Manual De Operación/Instalación

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FINAL SYSTEM CHECK

1. Turn on the source unit. After a two-second delay, slowly increase the Volume
Control and listen to the audio. If you hear any noise, static, distortion or no
sound at all, check the connections, and also refer to Troubleshooting. Depending
on your system design, the levels may become quite loud even at low Volume
Control settings. Until you get an "audio feel" of the system's power, use care
when adjusting controls.
2. Turn the Balance Controls to their extreme positions and listen to the results.
Audio imaging should match control settings (audio from the left speaker when
balance is left).
3. Increase the volume and verify that the amplifier reproduces audio (at full
frequencies) without distortion. If you hear distortion, check the connections and
verify that the Gain Control is set correctly. Another possibility is damaged
speakers or under-powered speakers. Once again refer to Troubleshooting for
additional help.

TROUBLESHOOTING

Pro blem
No Audio.
Solution
Low or no remote turn-on voltage. Check remote connections at amplifier and
source unit.
Blown amplifier fuse. Replace with new fast-blow fuse (same rating).
Power wires not connected. Check battery and ground wiring at amplifier;
also check battery connections.
Speaker leads shorted. Check speaker continuity to ground, it should not show
a common ground.
Speakers not connected or are blown. Check speaker connections at amplifier,
measure coil impedance.
Pro blem
Audio cycles on and off.
Solution
Thermal protection circuits are shutting amplifier off. Check location for
adequate ventilation; consult an authorized Clarion Marine Audio Dealer.
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Operation/Installation Manual
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