Question about Kenwood KSC-310CCS Center Channel Speaker Car Speaker
Hi, the unit enters protect mode when the output impedance is too low causing the power transistors to draw too much current. A short may be internal or external to the head unit. The thing to do is first disconnect the speakers to see if the unit will come out of protect. If this does not work, the short is internal, and the head unit must be repaired or replaced. If disconnecting the speakers DOES resolve the short, then the speakers and wiring must be checked for a short. The easiest way to do this is to use an ohmmeter at the speaker connector. Check the impedance of each pair of speaker wires. The impedance should be between 4-8 ohms. Anything less than 4 ohms may cause the unit to protect, depending on the exact design of the unit. If you find any wire pairs to have less resistance than the others, access the speaker to check the impedance of the speaker alone. If the speaker has an impedance of 4-8 ohms, the problem is a shorted wire. Please let me know if you have questions, and thanks for using FixYa.
Posted on Mar 20, 2011
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Posted on Jan 02, 2017
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