HP 10bII - Determining if the Calculator Requires Service

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 
n The calculator won’t turn on (nothing is in the display):
7KLVFRQGLWLRQPRVWOLNHO\LQGLFDWHVWKDWWKHEDWWHULHVKDYHUXQRXW
,QVWDOOQHZEDWWHULHV
,IWKHFDOFXODWRUVWLOOGRHVQRWWXUQRQZKHQ\RXSUHVV
1 
 UHVHWWKHFDOFXODWRUVHHEHORZDQGLIQHFHVVDU\
 HUDVHWKHPHPRU\VHHEHORZ
7KH
All Clear PHVVDJHVKRXOGQRZEHGLVSOD\HG,IWKLVLVQRWWKH
FDVHWKHFDOFXODWRU UHTXLUHVDVH UYLFH
Resetting the calculator
 7XUQWKHFDOFXODWRURYHUDQGUHPRYHWKHEDWWHU\FRYHU
 ,QVHU W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
 3UHVV 
1 
 ,IWKHFDOFXODWRULVVWLOOQRWUHVSRQGLQJHUDVHWKHPHPRU\VHH
EHORZDQGUHSHDWVWHSVWRDERYHRQHPRUHWLPH
Erasing the calculator’s memory
 +ROGGRZQWKH 1 NH\
 +ROGGRZQWKH
P DQGWKHQWKH / NH\
 5HOHDVHDOOWKUHHNH\V
0HPRU\LVFOHDUHGDQG
All ClearVKRXOGEHGLVSOD\HG
n The calculator doesn’t respond to keystrokes (nothing
happens when you press the keys):
 5HVHWWKHFDOFXODWRUVHHDERYHDQGLIQHFHVVDU\
 HUDVHWKHPHPRU\VHHDERYH
7KH
All Clear PHVVDJHVKRXOGQRZEHGLVSOD\HG,IWKLVLVQRWWKH
FDVHWKHFDOFXODWRU UHTXLUHVDVH UYLFH
10B.book Page 121 Wednesday, June 21, 2000 5:19 PM