Ultra Start 15xx Manual de usuario Pagina 26

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TDC Ultra User’s Manual
2-12
To test the display, select
Display from the Tests
menu, and the screen
shown here is displayed.
Press DO to start the test.
The display should look
like the screen shown here.
Each character should be
an asterisk “*”, and there
should not be any other dots
displayed.
Press DO three times. You should see a full screen of “8”, then full
screen of “=”, and finally a full screen of “|”. If any of the screens
do not display correctly, then something is wrong with the display
of the TDC Ultra. Contact us using the information in the front of
this manual to arrange to ship the TDC Ultra back for repair.
Keys Test
There are a number of push-button keys (or switches) on the front
panel of the TDC Ultra, each of which performs a vital function. It
is very important that the keys work reliably. The keys are the only
components in the TDC Ultra that are susceptible to wear and tear.
While they should have a long life (each key is rated to 1 million
pushes), there is always the chance that a key will go bad and stop
working correctly.
Our experience suggests that some customers think that the harder
they push the keys, the more ‘important’ the TDC Ultra will consider
the count. This is not true. Actually, the TDC Ultra prefers gentle
pressing of the keys. Please keep it in mind.
To test the switches, select
KEYS from the TESTS
menu. The screen shown
here is then displayed.
Each time you press a key, the TDC Ultra displays the number of
the key on the display. The BANK1, BANK2, TAB, & DO keys
- - - DISPLAY TEST - - -
Press DO after each
test screen...
* * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * *
- - - SWITCH TEST - - -
Press any one key...
You pressed: #1
Bank1-DO to exit
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