Question about Car Audio & Video
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Posted on Jan 02, 2017
SOURCE: car amp
The most common reason for this is shorted output transistors. To confirm that the problem is in the amplifier, disconnect all speaker wires and the RCA cables. If the amp still goes into protection, check the DC voltage across the B+ and ground terminals. It should not drop below 11 volts. Also check the remote voltage.
If the amp continues to go into protect with no external connections (other than B+, remote and ground) and the voltage remaiins above 11v, the amp is defective.
Posted on Nov 06, 2007
SOURCE: Protection Light
This is almost always caused by shorted output transistors. To eliminate other possible problems do the following.
Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down (goes into protection), the amp likely has blown output transistors.
Generally, an amp with blown output transistors can be repaired.
Posted on Dec 28, 2007
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