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7. MAINTENANCE, TROUBLESHOOTING
7-11
7.5.3 Keyboard test of the control unit
The keyboard test checks the controls on the control unit for proper operation.
1. Press the [MENU] key to show the menu.
2. Press the E:SYSTEM CONFIGURATION soft key.
3. Press the C:SYSTEM SETUP soft key.
4. Press the B:TEST & CLEAR soft key.
5. Press the B:KEYBOARD & REMOTE TEST soft key.
PROGRAM No. 0359203-03.01
ROM :OK
ROM :OK
Screen for testing keyboard, remote controller
6. Operate each control on the keyboard one by one. A key is functioning
properly if its on-screen location “fills” in black when the key is pressed. For
the [ENTER] knob and trackball, rotate them to show their X-Y positions
digitally, and push the [ENTER] knob to confirm its function. Their ranges are
–999 to +999.
7. Press the [CLEAR] key three times on the control unit to escape from the
test.
8. Press the [MENU] key to close the menu.
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