Beovision 11, No Picture

[sandor.szucs]

Hi,

My Beovision switches on and there is sound but no display. As soon as I opened the back it became evident that the 2 safety capacitors have been burned out on PCB04(power supply BCB).

Surprisingly they are RIFA capacitors notoriously known for their failures. I would like to replace them with a more reliable brand.

Would anybody know the specification for these capacitors?

 

[Madskp]

<hr />

Take a look at this thread where the Rifa capacitors was blown in a Beoplay V1.

https://forum.beoworld.org/forums/topic/beoplay-v1-40-smoked-power-supply/

The bBV11 and the V1 is built on the same platform, so there is a good chance the capacitors are the same.

Location: Denmark

[sandor.szucs]

Hi, Madskp,

Thanks very much for your help.

[sandor.szucs]

Hi,

Anybody who is looking for the same capacitors will find them at the web address bellow:

https://www.aliexpress.com/item/1005010544497927.html?spm=a2g0o.order_list.order_list_main.9.7eeb1802PGeDSR

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[sandor.szucs]

Hi,

So, I got and installed the new capacitors but it made no difference – there still is no display (picture).

Is there a way I could test power supply PCB 04 while it is out of the TV on its own ?

After I replaced the capacitors, I had PCB 04 assembled to the TV and using the service manual diagnostic flow chart (for symptom: No Picture) I did the checks and ended up with the conclusion that PCB 01 should be replaced. However, I am still not sure after those checks if PCB 04 is in fact OK or NOT OK. The service manual does not offer any test methods to determine if a particular PCB circuit functions OK or NOT OK.

Could someone help me with this please?

 

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