APX640.4/640.2/320.2/DPX1001.1
FINAL SYSTEM CHECKS
1.Start the engine and turn on the source unit. After a
2.Turn the balance controls to their extreme positions and listen to the results. Audio output 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 frequen- cies) 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 section for additional help.
TROUBLESHOOTING
TROUBLESHOOTING
Problem
No Audio.
Solution
Low or no remote
Blown amplifier fuse: Replace with new
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 com- mon ground.
Speakers not connected or are blown: Check speaker connections at amplifier, measure coil impedance.
Problem
Audio cycles on and off.
Solution
Thermal protection circuits are shutting amplifier off: Check location for adequate ventilation; consult an authorized Clarion Audio Dealer.
Problem
Distorted audio.
Solution
Gain is not set properly, or damaged speaker cones: Review Setting Gain; inspect each speaker cone for signs of damage (i.e., frozen cone, burning smell, etc.)
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