Hi guys I have a sharp CD-DK4500 which has no output to the speakers

If you unplug it, and let it sit, then plug it in, it will work fine
for maybe 10-15 seconds and then you hear a click inside the unit and
the speakers stop. The click suggests to me something is shorting? And
leaving it unplugged lets the short un-do itself? Or something, I dont
know which is why im asking in here, any ideas?