How can you get rid protect off sharp hifi?

This is normally displayed if a short circuit is detected and may be the amplifier output circuit or speaker/wires.
Disconnect speakers and try again. If now stays on then check speaker wires and speakers.
If fault remained with speakers disconnected then the output amplifiers will have to be isolated to test and would require a service engineer unless familiar with circuitry, schematics and soldering.

sparky
February 2006