Re: HP48S self test? Message #2 Posted by Vieira, Luiz C. (Brazil) on 9 Mar 2003, 2:21 a.m., in response to message #1 by barry
Hi;
"major" self-test is started with the
[ON][E]
sequence, i.e., with the calculator switched to ON:
press and hold [ON] key
press and hold [E] key
release [ON] key
release [E] key
This starts a cyclic self-test that would ends/starts-over wiht a beep and a
OK HP48
message at the top-left corner. To stop the cyclic self-test use the
[ON][C]
sequence, i.e.:
press and hold [ON] key
press and hold [C] key
release [ON] key
release [C] key
this restarts the calculator and does not clear memory contents EXCEPT for stack, suspended programs and, consequently, local variables.
There is an interactive-mode test with the [ON][D] sequence, that starts, beeps and stops with three vertical lines. Press [E] key and a KBD1 message appears in the top-left corner. Press all keys in each line from left-to-right, top-line to botton-line, [ON] key in the sequence, and after the last one is pressed, the message changes to KBD1 OK . If you miss or repeat a key, an ERROR message appears and you can start it over with the [ON][D] and [E] keys again.
Hope this helps.
Cheers.
Luiz C. Vieira - Brazil
|