JBL SB400 sound bar and Sub

Astonmv8

Novice Member
Hi I have a Cinema SB400 sound bar and sub. It recently out of the blue (3am in the morning) started a high pitch alarm type sound immediate thoughts it was a fire alarm as it was that load. I turned it off and disconnected it. However it no longer works, I have no sound from any function including Bluetooth.

Do you have any ideas on what can be done?
Thank you
 

zeppelino

Distinguished Member
Any warranty left? If not you could try JBL support but they’ll likely charge for assessment/repair so it may not be economical to repair.
 

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