Question about Sharp R-1480 Microwave Oven

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Unable to get the touch bottom to work

Sharp model R-190H I am unable to clear the 88:88 when you touch stop/clear pad nothing happen. I am unable to set the clock or do anything

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  • 8,820 Answers

Quite often on the compact models, the solution is to pull the control panel assembly off, remove the circuit board and clean the surfaces shown in the photo with high-grade alcohol.

That would include the back of the LCD glass and both sides of the rubber strip.

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

unable to get the touch bottom to work - 0eb9b46.jpg

Posted on Jan 04, 2009

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2 Answers

Sharp microwave 8888 is flashing and I cannot remove


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


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    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

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    I had this problem too:
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    Note that when it's flashing 88:88 you are supposed to _start_ with the 'Stop/Clear' button. After that, set the clock (press "Clock", enter the time with the number pad, then press Clock again).

    Hope that helps.

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    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.

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    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. 

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    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.


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

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    These units did indeed last a long time.

    Sorry I can't bring better news.

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