Function Test; Ram; Rom; Key - Casio DT-X100 Service Manual

5-4. Function Test

5-4-1. RAM

No Operation
Select [SDRAM].
1

5-4-2. ROM

No Operation
Select [FLASH-ROM].
1

5-4-3. Key

No Operation
Select [Key].
1
Display
The increment data is written to, read
from and then compared with the
maximum possible SDRAM area.
If OK:
The screen returns to the Menu screen.
If any problem:
The failed addresses, correct data and
wrong data are displayed.
Display
Checksum of storage areas for
BootSelector/SYSBoot/OSLoader/OS is
calculated and automatically checked.
Also, 64KB fi les are written, read and
compared.
If OK:
The screen returns to the Menu screen.
If any problem:
An error indication is displayed.
Display
Press all keys in sequence.
The pressed keys appear inverted on the
screen.
(Attention)
To test the "FN" key function, press the
button twice.
Once every key is pressed, the screen
returns to the Menu screen.
Pressing the "ENT" key twice in the
middle stops the test and returns you to
the Menu screen.
— 45 —
Test Details
 Pressing the "ENT" key returns you
to the Menu screen.
Test Details
 Pressing the "ENT" key returns you
to the Menu screen.
Test Details