The shutdown you're experiencing is separate from the control unit / display issue.
The shutdown is probably due to a a loose fuse holder, loose wiring, or a problem on the inverter board or the magnetron.
If the control unit doesn't receive the proper signals form the inverter, it will shut down the cooking process, but you say it acts like it's being unplugged - that makes me suspect a loose fuse or wiring.
Due to the lethal voltages used and produced, I do not recommend that an inexperienced person attempt to take readings on these inverters.
We actually have the service manual for this model and have uploaded it to our site
here to help you.
You will need the
free Acrobat Reader to view or print it in case you don't have it already.
At
our Web site, we have a video available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
The best place to order Sharp parts is
Tritronics. You can also call them at 866-779-5835.
If you get the shutdown problem repaired, we'd be happy to repair your display problem for you.
We regularly repair these control units for
customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.
Feel free to contact me
directly (and please remind me of your full model number) for more information & help.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.William E. Miller
[email protected]http://www.microwavedisplay.com
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