HP (Hewlett-Packard) F1902-90001 Calculator User Manual


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A: Assistance, Batteries, and Service 121
Determining if the Calculator Requires Service
8VHWKHVHJXLGHOLQHVWRGHWHUPLQHLIWKHFDOFXODWRUUHTXLUHVVHUYLFH,I
WKHVHSURFHGXUHVFRQILUPWKDWWKHFDOFXODWRULVQRWIXQFWLRQLQJSURSHUO\
UHDGWKHVHFWLRQ´,IWKH&DOFXODWRU5HTXLUHV6HUYLFHµRQSDJH 
The calculator won’t turn on (nothing is in the display):
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 UHVHWWKHFDOFXODWRUVHHEHORZDQGLIQHFHVVDU\
 HUDV HWKHPHPRU\VHHEHORZ
7KH
All Clear PHVVDJ HVKRXOGQRZEHGLVSOD\HG,IWKLVLVQRWWKH
FDVHWKHFDOFXODWRUUHTXLUHVDVHUYLFH
Resetting the calculator
 7XUQWKHFDOF XODWRURYHUDQGUHPRYHWKHEDWWHU\ FRYHU
 ,QVHUWWKHHQGRIDSDSHUFOLSLQWRWKHVPDOOURXQGKROHORFDWHG
EHWZHHQWKHEDWWHULHV,QVHUWWKHFOLSDVIDUDVLWZLOOJR+ROGIRU
RQHVHFRQGDQGWKHQWKHQUHPRYHWKHFOLS
 3U HVV
 ,I WKHFDOFXODWRULVVWLOOQRWUHVSR QGLQJHUDVHWKHPHPR U\VHH
EHORZDQGUHSHDWVWHSVWRDERYHRQHPRUHWLPH
Erasing the calculator’s memory
 +ROGGRZQWKH NH\
 +R OGGRZQWKH
DQGWKHQWKH NH\
 5HOHDVHDOOWKUHHNH\V
0HPRU\LVFOHDUHGDQG
All ClearVKRXOGEHGLVSOD\HG
The calculator doesn’t respond to keystrokes (nothing
happens when you press the keys):
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 HUDV HWKHPHPRU\VHHDERYH
7KH
All Clear PHVVDJ HVKRXOGQRZEHGLVSOD\HG,IWKLVLVQRWWKH
FDVHWKHFDOFXODWRUUHTXLUHVDVHUYLFH
10B.book Page 121 Wednesday, June 21, 2000 5:19 PM
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