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6. MAINTENANCE & TROUBLESHOOTING
6-4
KEYBOARD TEST
KEYBOARD TEST
001
Operate each control on the control unit one by one. A key is functioning
properly if its on-screen location lights in black when the key is pressed. For the
[ENTER] knob, rotate it to show X-Y position; push it to confirm function.
To escape from the KEYBOARD TEST, press the [POWER/BRILL] key three
times.
SCREEN TEST
Each press of the [ENTER] knob changes the screen pattern in the sequence
shown below.
(Flashing)
To escape from the SCREEN TEST, press any key except the [ENTER] knob.