14-7
IM 703155-01E
Troubleshooting, Maintenance, and Inspection
14
Key Test
3.
Press the
Key
soft key. The key arrangement is displayed.
4.
Press a key or turn the
rotary knob
to check that the corresponding mark
changes in color.
5.
When you are done, press the
ESC
key to clear the key arrangement.
Display Test
3.
Press the
Display
soft key. Test screens of the red, green, and red gradations
are displayed sequentially for approximately 5 seconds at a time. Then, the
normal screen appears. Check that there are no defects on the test screen.
Peripheral Interface Test
3.
Press the
Peripheral
soft key. The test result is displayed.
14.3 Performing a Self-Test