Posted on Oct 01, 2010

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I have sharp microwave oven model R-231F. On digital display (which is suppose to show time) only 88888 is displayed. suspect fault with the PCB behind display or keypad. Please advise how I can obtain these spares or from where I can get the PCB/microwave repaired?

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William Miller

Sharp Master 9,179 Answers
Posted on Oct 02, 2010

William Miller

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Joined: Sep 15, 2006

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First I would suggest a "hard reset". Simply unplug the oven for a minute or two, then try again.

If it still fails, it may be that the keypad has failed, or there is a bad connection due to moisture, grease, etc.

This is an Australian model, so it's hard for me to give more specific information.

But one some US models the LCD and keypad connect to the circuit board via a rubber "zebra strip" and losing that connection can result in a loss of display segments and / or key response.

I've attached a diagram showing where one can clean to restore operation in this case.

I have sharp microwave oven - a98b491.jpg

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

Anonymous Oct 02, 2010

My attachment seems to have failed.

Try there:http://031d26d.namesecurehost.com/mwd/r3...
pbarj Oct 03, 2010

Dear Guru,
Thanks for your help. I have tried hard reset many times, but unfortunately it did not work. Now the problem is, when I had given PCB and display module to somebody to investigate, he has lost the flexible zebra strip. I have no idea from where I can get another one in Mumbai. If I can find a place in Mumbai, where I can get parts for Sharp microwave, it will help me a lot.

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I have sharp microwave oven model R-231F. On digital display (which is suppose to show time) only 88888 is displayed. suspect fault with the PCB behind display or keypad. Please advise how I can obtain these spares or from where I can get the PCB/microwave repaired?

1 Answer

William Miller

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I have sharp microwave oven model R-231F. On digital display (which is suppose to show time) only 88888 is displayed. suspect fault with the PCB behind display or keypad. Please advise how I can obtain these spares or from where I can get the PCB/microwave repaired?

1 Answer

William Miller

Add Your Answer

Attachments: Added items

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The display on our Sharp Microwave oven went very dim. Everything else on it is still functioning perfectly. Will replacing part FPNLCB666WRKZ fix it? Is this something we can safely do ourselves?

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