The protect message indicates that a problem was detected at the final stage of the amplifier and the unit has been shutdown to prevent further damage.
If the unit continues to flash protect even with the speaker wires disconnected, then the problem is internal to the unit and it will require repair not just a reset. The typical reason for this is shorted output transistors. Expect a repair cost of $25-$45 for parts if it continues with the protect message.
Answers & Comments
The protect message indicates that a problem was detected at the final stage of the amplifier and the unit has been shutdown to prevent further damage.
If the unit continues to flash protect even with the speaker wires disconnected, then the problem is internal to the unit and it will require repair not just a reset. The typical reason for this is shorted output transistors. Expect a repair cost of $25-$45 for parts if it continues with the protect message.
Please keep us posted.
Thanks,
Dan