Casio SF-5580E Service Manual page 17

7 Wait about 45 ~ 50 seconds.
In the case of SF-5580E,
LCD display
In the case of SF-5780E,
LCD display
, or
LCD display
In the case of SF-5980E,
LCD display
KEY CHECK
8 Press OK button.
LCD display
9 Press any button. For example, press TEL button.
LCD display
After pressing any button, LCD displays a letter or a number correspond to its button.
Check all keys (buttons) in this way except to OK button.
COMMUNICATION CHECK
0 Press OK button.
LCD display
A Prepare another unit, then execute the procedure described above (1 ~ 10).
Another unit's
LCD display
ROM TEST ROM OK
RAM TEST 1 2 8 K OK
ROM TEST ROM OK
RAM TEST 1 2 8 K OK
2N D
RAM TEST 1 2 8 K OK
ROM TEST ROM OK
RAM TEST 2 5 6 K OK
ROM TEST ROM OK
RAM TEST 5 1 2 K OK
ROM TEST ROM OK
RAM TEST XXX K OK
KEY TEST
ROM TEST ROM OK
RAM TEST XXX K OK
KEY TEST TEL
ROM TEST ROM OK
RAM TEST XXX K OK
KEY TEST XXX
1 COMM 2 ECHO
ROM TEST ROM OK
RAM TEST XXX K OK
KEY TEST XXX
1 COMM 2 ECHO
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