Verifying Proper Operation (Self-Tests) - HP 0012C-90001 User Manual

194 Appendix E: 194 Appendix E: Batter Batteries
194 194 Appendix E: Appendix E: Batter Batter
To install new batteries, use the following procedure:
1. With the calculator turned off, slide the battery cover off.
2. Remove the old battery.
3. Insert a new CR2032 lithium battery, making sure that the positive sign (+) is
facing outward.
4. Remove and insert the other battery as in steps 2 through 3. Make sure that
the positive sign (+) on each battery is facing outward.
5. Replace the battery cover.
Note: Note: Be careful not to press any keys while the battery is out of the calculator. If
Note: Note:
you do so, the contents of Continuous Memory may be lost and keyboard control
may be lost (that is, the calculator may not respond to keystrokes).
6. Press ; to turn on the power. If for any reason Continuous Memory has
been reset (that is, if its contents have been lost), the display will show Pr Pr Pr Pr
Error. Pressing any key will clear this message. Error. Error. Error.
Verifying Proper Operation (Self- - - - Tests) Verifying Proper Operation (Self
Verifying Proper Operation (Self Verifying Proper Operation (Self
If it appears that the calculator will not turn on or otherwise is not operating
properly, use one of the following procedures.
For a calculator that does respond to keystrokes:
1. With the calculator off, hold down the ; key and press
2. Release the ; key, then release the
the calculator's electronic circuitry. If everything is working correctly, within
about 25 seconds (during which the word running
show – – – – 8,8,8,8,8,8,8,8,8,8 8,8,8,8,8,8,8,8,8,8, and all of the status indicators (except the 8,8,8,8,8,8,8,8,8,8 8,8,8,8,8,8,8,8,8,8
ies, Warranty, and , Warranty, and Customer Care Customer Care
ies ies , Warranty, and , Warranty, and Customer Care Customer Care
Tests)
Tests) Tests)
.
key. This initiates a complete test of
running flashes) the display should
running running