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6. MAINTENANCE & TROUBLESHOOTING
6-4
KEYBOARD TEST
KEYBOARD TEST
001
PUSH "POWER/BRILL" KEY
THREE TIMES TO RETURN.
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
course control 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 course control knob changes the screen pattern in the
sequence shown below.
(Flashing)
SCREEN TEST
CHANGE TEST PATTERN?
YES...PUSH ENTER KNOB
PUSH MENU KEY TO RETURN.
To escape from the SCREEN TEST, press any key except the course control
knob.