How can I keep the turntable from revolving when using a dish that is too large to turn?

Yes they are well protected against accidents, they don't want there customers Electrocuted by there products.............. unless your in some 3rd world country.

If the turn table automatically picks up the tone arm and starts the record and changes after the record is over, then you are haering the gear box.

Check that there is no damage to the plastic turntable rotor (i.e the part with wheels) underside the plate. Motor could be working but rotor missing or not connected properly, or damaged. Otherwise the turntable motor or motor driver circuit is fried.

Yes

Hello paula.... there is no switch or other easy way to turn off the turntable. What you can do is simply remove the glass revolving tray and ring and use the microwave with the turntable removed. Joe

Thanks for choosing Fixya!

The turntable motor could be bad or the coupler that the turntable sets on could be worn out. The are the two most common failures.

The manufacturer has set the rotational plate in motion at the same time the microwave tube is energized. They work together as a team. At no time should the plate be idol, unless you remove it completely, and then only the center spindle will turn by itself. It is possible for the rotational spindle in the center of the oven to break, but that is unusual unless some sort of pressure (like stopping it when it was moving) was applied. Also, it has been reported that some individuals tend to put items with too much weight or too large for the oven to manage; thus damaging the rotator. As long as the oven still provides Microwaves to cook your food, it is still OK. Years ago, there were no rotating plates and using the energy was all it took to get the job done. For even cooking, just manually stop the oven at times and turn the food to avoid over heating in one spot.

look at the features the new microwaves have. alot of them have a button to turn the turn table off

Well the table might not be on the revolving piece- that is what happened to my microwave oven, or the revolving piece might have to be connected to a belt inside that turns it