7.3. Restoring Normal Display - From the F76 display, the normal display does not appear till an error is recovered. - For displays other than F76, press �POWER� button to turn off the power, and then turn on the power.
1. Enter a self-diagnostic mode. 2. Press " /-DEMO" button. A symbol of self-diagnostic is indicated on the display if an error is found. If several errors are found, a respective indication is displayed when " /-DEMO" button is pressing repeatedly. (e.g. H01 CD F15 F01) / If no error is found, only "TEST" indication is displayed and remains unchanged even if " DEMO" button is pressed. /-
