HP 35s Scientific manual 6Support, Batteries, and Service

→ → → 9→ × → Ö → Õ → → →

→ 6→ Ø → → → → → → → → → → 4→ → → → → → → →

→ → → → → → → → → → → →

→ 

If you press the keys in the proper order and they are functioning properly, the calculator displays  followed by two–digit numbers. (The calculator is counting the keys using hexadecimal base.)

If you press a key out of order, or if a key isn't functioning properly, the next keystroke displays a fail message (see step 4).

4.The self–test produces one of these two results:

The calculator displays  if it passed the self–test. Go to step 5.

The calculator displays  followed by a one–digit number, if it failed the self–test. If you received the message because you pressed a key out of order, reset the calculator (hold down , press ) and do the self test again. If you pressed the keys in order, but got this message, repeat the self–test to verify the results. If the calculator fails again, it requires service (see page A–8). Include a copy of the fail message with the calculator when you ship it for service.

5.To exit the self–test, reset the calculator (hold down and press ).

Pressing and 9starts a continuous self–test that is used at the factory. You can halt this factory test by pressing any key.

A-6Support, Batteries, and Service