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Appendix C
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Service and Maintenance
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Calculator Checkout Procedure
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Note
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Charge battery pack before portable use.
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A rechargeable battery pack is provided with your calculator. The calculator will operate while
charging; however, be sure to fully Charge the battery pack for 14 hours before portable use.
Charge in either ON or OFF position.
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CAUTION
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Calculator can be damaged by strong static charge.
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Low Power
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All decimal points light to warn you that you have 2 to 5 minutes of operating time left on
battery power. You must then either:
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1.
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Operate from ac power.
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2.
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Charge the battery pack.
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3.
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Insert a fully charged battery pack.
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Blank Display
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If the display blanks out, turn the HP-65 off, place the W/PRGM —RUN switch in RUN position,
and turn the HP-65 back on. If 0.00 does not appear on the display, check the following:
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1.
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Examine the battery pack to see if it is discharged and whether it is making proper
contact with the calculator.
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2.
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If the display is still blank, try operating the HP-65 from the ac line.
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