15
ESN (Key CD) security operating procedure
•
This process cancels the protection for the ESN
deck.
•If power to the 54420 is disconnected, then
reconnected, a key CD will not need to be inserted in
order to return the unit to normal operation.
•Inserting a CD other than the Key CD will not cancel the
protection. Instead, the display will show [ERR] for two
seconds, then the normal CD playback mode will activate.
عHow to change the Key CD
1 .
First, cancel the existing Key CD.
Refer to “How to cancel the Key CD.”
2 .
Next, program a new Key CD.
Refer to “How to program the Key CD.”