CCC - AUX-IN Loud Hissing If No Device Connected
SI B 65 44 06Sound System, Cruise, Alarms, Monitors
December 2006
Technical Service
SUBJECT
CCC: AUX-IN Loud Hissing if no Device Connected
MODEL
E90, E91, E92 (3 Series) with CCC -Navigation (SA 609)
E60, E61 (5 Series) with CCC-Navigation (SA 609)
E63, E64 (6 Series)
SITUATION
A loud humming or hissing noise can be heard if the AUX-IN source is selected but no device is connected. The noise varies according to the position of the light switch.
CAUSE
Conceptual design of the CCC AUX-IN input circuitry.
PROCEDURE
Do not replace parts.
Advise the customer to select a different audio source, when no device is connected to AUX-IN.
WARRANTY INFORMATION
For information only.
Disclaimer