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SOURCE: Clearing memory 0n sharp XE-A203
save your program data if you wish keep it on a sd card
remove the batteries and unplug. wait 5 minutes,, put key in, turn to reg and plug in.
you should get 3 beeps... all is set to default now and ready for programing
SOURCE: my sharp xe-a203 displays PPPPPPPPPP
turn it off and it will go off. Take off the power and wait 10 seconds counting such as one mississipi. then turn it back on, if this persists, take it to get it fixed
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