Insignia NS-A1000 User Manual (English) - Page 14
Troubleshooting
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Insignia NS-A1000 Car Stereo Amplifier Troubleshooting Before removing your amplifier, locate the problem in the following table. Always test the speakers and speaker wires before troubleshooting the amplifier. Symptom Check Solution No sound Is the power indicator LED lit? The amplifier will not turn on Is the fault LED lit? Is there power to the power wire? Is there power to the remote turn on wire with the receiver on? Is there a blown fuse? No sound on one channel Check the speaker leads. Check the Audio input leads. The amplifier is turning off at medium to high volume levels Check the speaker load impedance. The protection LED is on (Red) Is the amplifier very hot? Is there a short in the speaker wires? • Check the amplifier fuses. • Make sure that the remote turn on wire is connected. • Check the signal leads. • Check the gain control. • Check the source volume level. • Clean the contacts on the fuse holders. • Check for a speaker short circuit, amplifier overheating, or low voltage. • Make sure that the amplifier has a good ground connection. • Repair the power wire or the connections. • Check the connections to the +12 V source. • Change the fuse. • Check for a short circuit or open connection. Repair if found. • Reverse the left and right inputs to determine if the fault is occurring before the amplifier. • Make sure that the correct speaker load impedance recommendations are followed. • Check the speaker resistance with an ohmmeter. • Turn off the source unit and wait until the amplifier cools. • Separate and insulate the speaker wires. 14 www.insignia-products.com