ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hello all,
I have just "inhereited" a Beosound 9000, Beolab 6000 and 4000 speakers. After setting up and trying everything out, I have found that one of the Beolab4000 speakers works intermitantly. The light flicks between red and green and the sound occasionally comes on for a brief period and then drops out again. I have swapped sides and it goes with the speaker. I believe this rules out cable or signal as the 6000's work fine.
I have checked the settings and they are correct, any advice or experiece of same fault. I am new to B & O and any advice gratefully recieved!
cheers
John
Welcome to Beoworld.
try removing the Powerlink cable from the back and use the second input. Blow any debris from the DIN plug (at both ends). A dodgy contact can cause issues. The red/green LED is also an on/off button. Try pressing it in a few times.
If that doesn't do any good, you may need it to be looked at by a repair shop. It won't be a settings issue and will be a speaker issue.
Dave.
Thanks Dave,
tried that, made no difference... I guess its to the repair shop....
Cheers
Hi John,
there were some recent threads on the BL4000 and a relay was the cause of some problems. If you search the forum you may find some useful info - especially before a repair shop tells you 'the amp is gone' etc.
Hi Dave,
thanks for the suggestion, I am not an expert in electronics, vintage motorbikes are my thing. Logically the mute relay could be the cause, I will enquire to see what the B&O dealer thinks it will cost to repair...
this is a somewhat common failure arising with the age of the BeoLab 4000s. But it's not the mute relais but the small transformer for the standby circuit of the speaker.
It has one or more shortcuts in the winding on the secondary side which can lead to a complete 'dead' speaker. It can be exchanged by a good workshop or they change the complete standby module (less good because nore expensive )
Ralph-Marcus
Thanks Ralph,
I will get it checked out...
Is there any tests I can do at home tonarrow down the fault? Connect via line instead of powerlink ? Try regular stereo with no mains power? I might be grasping at straws of inexperience...
Sorry there's nothing you can test before the Standby Transformer (or module) is changed. The standby circuit checks for a power on signal from the powerlink connector or by the line sense circuit which switches the power amplifier on and the LED from Red to constant shining Green.