How can I turn off the tamper proof light on a sharp combo without the remo?

That light warns you that the unit was opened and reclosed unproperly. There may be some foreign object inside, or something is not properly mounted or connected.
I would be very surprised if you could dismiss that signal with a remote.

You need to unplug the unit forat least 2 to 3 days to let the high tention capacitor time to discharge itself.
Then, you need to open the case and inspect everything to make sure that there are no foreign object and that everything is properly placed and connected. You also need to find and reset the tamper detection switch.

It's probably beter to ask a technician to do that job, as you may not be able to see if something is not properly placed.
A technician know what NOT to touch, and have some specialy insutated tools, and can work on it without the wait I mentioned above.

Electro
February 2013