Error Detection, CD Player

The radio displays CHECK CD in the display if any of the following conditions exist:
^ Moisture impairs the focusing mechanism
^ A tracking problem occurs
^ A servo problem occurs.
^ A disc is inserted upside down

CHECK CD remains lit in the display for 5 seconds, along with the normal information.

If you insert a CD upside down, the following actions occur:
^ CHECK CD appears in the display
^ The CD will be ejected.

CHECK CD will turn off under one of the following conditions:
^ 5 seconds expire
^ The radio becomes the active source
^ Another radio mode is selected

CHECK CD does not light unless the following conditions are true:
^ The CD player is active

The CD player is in the play mode