I can't get the self tests to work even though the calc works ok with the basic stuff. My manuals and DVD are at the office for safe keeping and are not accessible.
TIA
Charlie in phx
hp 20s self test
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12-23-2007, 11:27 AM
I can't get the self tests to work even though the calc works ok with the basic stuff. My manuals and DVD are at the office for safe keeping and are not accessible. TIA Charlie in phx ▼
12-23-2007, 12:21 PM
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12-23-2007, 02:51 PM
Thanks Gerson. I had found this site and more but my problem is in running the tests. When I do the 2 key thing it is as if I merely turned on the calc. I have done these tests many times with many models and the tests would always run. The keys feel good and do their functions except for the tests. Maybe I'm just missing the necessary brain cells. ▼
12-23-2007, 04:07 PM
With 0.0000 on the screen do you get an error when you press 1/x or nothing? If nothing, the 1/x key is missing contact, if you get an error, your ON button may be intermittent. Try pressing E then ON+E This should start the loop test. You can also set up a similar scheme with the y^x key to see which (if any) are not contacting.
12-23-2007, 04:25 PM
Quote: No, the procedure as written is just lacking. The various models of Pioneers need slightly different methods then just pressing two keys.
For the 20S LCD/Keyboard test:
The reset procedure is similar:
12-23-2007, 04:28 PM
I haven't been able to find any HP-20S manual other than this one in Portuguese, which may be useless to you. Anyway, I hope this excerpt from the original manual helps:
1. First, hold down the [C] key, then press and hold [y^x]. (A continu- Gerson.
Edited: 23 Dec 2007, 4:29 p.m. |