Unable to get the touch bottom to work

You have a failed membrane keypad.

Replacement keypads are no longer available for any Sharp R-9H-series microwave ovens.

The oven will have to be replaced.

see this steps and fix it. God bless you

Reset the clock. Press "Clock" and the correct time, using the number pads. Press "AM/PM" if applicable, and press "Start" or "Clock" to confirm.

2 Press "Timer On/Off" to reset the timer if nothing on the touch pad will operate. Use the number pads to select a new timed amount, if desired, and press "Timer On/Off" to start. Press again to cancel.

3 Press and hold "Clear/Off" for three seconds if the timer will not function or is blinking when you touch the pads. This will release the "Child Lock" feature. Make a new touch pad selection.

4 Disconnect power to the microwave if following Steps 1 through 3 does not resolve the blinking timer. Wait a few minutes, and then restore power to reset the microwave.

However if the problem persist the display board
main control board is faulty

The Child Lock prevents unwanted oven operation such as by small children. The oven can be set so that the control panel is deactivated or locked. To set, touch CLOCK, the number 1 pad and then touch the START pad and hold for 3 seconds. Should a pad be touched, will appear in the display. To cancel, touch CLOCK, the number 1 and STOP/CLEAR pads

the touch pad is faulty, replace...Phil

I think on this one you press the CLOCK/TIMER pad, then enter the desired time using the 10 MINUTES, 1 MINUTE, AND 15 SECONDS pads then press CLOCK/TIMER again.

If that doesn;t work, press STOP / CLEAR then try the above again.

Let us know if it does not work.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

The Sharp Microwave/Convection oven I have says to touch the Custom Help button, the number "1", then touch the Start Button. To turn off the child lock, press the Stop button.
Or just unplug it, wait 1 minute, and plug in.

After snubbing the darned thing overnight, plug it back it to see if it has recovered. These things do have primitive computers and we all know how reliable those things are- It may just have 'crashed,' just like seemingly all others. 

I've checked, and cannot seem to find online service data on this model. Perhaps it's too new.

But it sounds like you have one which has the glass LCD and keypad connected to the circuit board via a zebra strip type "rubber connector". This is what you referred to as the "black and white small foam like pad". It is called the rubber connector.

It's similar to the model shown in the attached exploded view and it shows you what to clean.

If cleaning doesn't work, you need to order the LCD glass and the rubber connector.

You will probably have to call Tritronics with your model number to get these parts. They are toll-free at 866-779-5835.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

It depends on what you mean by "a problem with the touch pad assembly".

If some or all keys do not respond, you would probably need a new keypad, but the key units for all Sharp R-9H-series models have been unavailable for a few years now.

These units did indeed last a long time.

Sorry I can't bring better news.