User's Manual

MDC-7000P/7900P Series Chapter 9 Simple fault diagnosis
0093169006-05E 9-3
9.2 Operation unit (panel) key is not operational
Following procedure is a test for Operation unit in case some keys don’t function properly. First please
make sure all cables are connected properly.
Note: This menu is protected in normal. To cancel the protection, refer to 1.3 Menu usage “Display
[MAINTENANCE] menu”.
1 Press MENU key to display “Menu”.
Select [MAINTENANCE] => [BITE] => [PANEL TEST] =>.
2 Panel illustration will appear on the display.
3 Press any key expect MENU key.
[●] mark will appear at the left side of key name during the key press.
The line in the circle will rotate when the knob is turned.
The circle color will change when the knob is pressed.
The small circle in the square will move when trackball is moved.
4 Pressing MENU key will complete the test.
Operation unit (panel) malfunctions, if No.3 item is not normally displayed.