Water damage. since then no power output though carousel works sharp over the rangemodel r-1600 m manuf 3/01

I really doubt that you can even get parts.

I was unable to locate a service repair manual specific to your microwave; sorry.

You'll must likely have to find a Sharp service and repair center.
I've attached a link that contains the user's manual to your microwave...it has the phone number and address of Sharp; perhaps you can phone them and ask where a repair center is located.

This is the diagnostic check list Sharp recommends before calling for service:
SERVICE CALL CHECK
Please check the following before calling for service:
1. Does the display light up?
2. When the door is opened, does the oven lamp come on?
3. Place one cup of water (approx. 250 ml) in a glass measure in the oven and close the door securely. Oven
lamp should go off if door is closed properly. Press the INSTANT COOK/START pad once.
A. Does the oven lamp come on?
B. Does the cooling fan work?
(Put your hand over the rear ventilation openings.)
C. Does the turntable rotate?
(The turntable can rotate clockwise or counterclockwise. This is quite normal.)
D. After one minute, did an audible signal sound and COOK
indicator go off?
E. Is the water inside the oven hot?
If "NO" is the answer to any of the above questions, please check your wall socket and the fuse in your meter box.
If both the wall socket and the fuse are functioning properly, CONTACT YOUR NEAREST SERVICE CENTRE
APPROVED BY SHARP.

Sharp Carousel 395Y Operation Manual And Cookbook

just replace the keypad...

faulty microwave module replace it

If all the settings work and the door closes ok . why throw it out ?. It may not be quite as efficient power wise as a brand new one. the few cents extra to run it against the price of a new one, I would stay with old faithful.

There are door switches and one of them is evidently out of adjustment or the little actuator arm on it is.

Looks like you have the purchase the glass tray in order to get the coupler. I would give Reliable Parts a call though phone # is 1-800-666-0313. Give them your model number and the name of the part you need.

either the high voltage side has gone done or pcb is not putting out the output.

I too believe that a "protection fuse" was possibly blown. It would need to be found and get replaced. Hopefully it is just a fuse and nothing else because the way it sounds to me, the microwave may be damaged.

Good Luck!

You probably have a defective magnetron or blown fuse supply power to magnetron.