See also:

When “CHECK DISC” is displayed
Press the eject button to unload the discs. Check that the disc is not damaged or scratched, and also check that the disc is inserted correctly. This message may appear when using some CD-RW discs ...

Setting passkey
1. Select the “SET PASSKEY” menu. After the currently set passkey is displayed, a new passkey can be entered. 2. Input the new passkey by operating the “TUNE/TRACK/CH” dial. 3. Select the “CONF ...

Emergency disarming
If you cannot disarm the system using the transmitter (i.e. the transmitter is lost, broken or the transmitter battery is too weak), you can disarm the system without using the transmitter. The s ...