BM7000 humming

4 replies
TH
Offline
theoz
GoldFounder
Posted February 9, 2024 at 06:50 GMT
#1643278
Hi,

my beomaster 7000 is humming.

What can i do ?

 

Thanks

Theo

Location: Strasbourg / France

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beoplay-Form-2i.png Beoplay-Form-2i.png
Beomaster.png Beomaster.png
Beolab-18.png Beolab-18.png
Beogram-400x.png Beogram-400x.png
GL
Offline
Glitch
Bronze
Posted February 9, 2024 at 19:33 GMT
Edited February 9, 2024 at 19:53 GMT
#1662334
TH
Offline
theoz
GoldFounder
Posted February 12, 2024 at 09:32 GMT
#1662399
Hi,

it's coming from the chassis, when power is Off

 

Thanks

Theo

Location: Strasbourg / France

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beoplay-Form-2i.png Beoplay-Form-2i.png
Beomaster.png Beomaster.png
Beolab-18.png Beolab-18.png
Beogram-400x.png Beogram-400x.png
DI
Offline
Dillen
BronzeModeratorFounder
Posted February 12, 2024 at 11:29 GMT
#1662401
It's the transformer.
Take it out, mask things off, soak it in lacquer under vacuum. Then let it dry in 50degC for 24h.
Fit it back with new rubber mounts.

Martin
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