B&O Technicians help sought: BeoVision Avant 55 MK1

20 February 2021

Dear all,

I (was) am the 'proud' owner of a BeoVision Avant 55 MK1...Sad to say a few days ago I became the latest 'victim' to the dreaded Pink/Purple Pixelated Screen of Death.

In simple terms I've now come to know this as a Video Engine on the main board going dead.

Besides the obvious encouragement to part with more money to replace the board, I am asking - seriously - if there are any (B&O?) technicians out there who have had any in-depth knowledge of this issue and precisely "where" / which part of the board has failed and ANY success stories of diagnosis/repair. 

Fortunately it's not the centrepiece of our house, so I can afford to take my time...

Also, separate issue leading to other ideas: I know it is an LG Screen in there - does anyone have any other more specific details about the screen... The screen specs for example... and/or any LG TV's that ever were produced to use the same screen...

All useful input and ideas welcome on this one: Even if it is just general technical help and experiences with working with these units.

Many thanks in advance everyone

 

It is Samsung panel, not the LG

My understanding is that the screen in the avant is Samsung not LG, It seems from my owning experience that the main board lasts for 5 years before it packs up ( five years to the day in my case.

 

There are a few issues though; the main board also contains the chip ( which is programmed by B&O at the repair centre) for PIN control matched to serial number of the product. So hope of finding a donor board from a samsung TV is out!

 

The engineer to came out to replace mine inidcated that extra heat sinks had been used; however close inspection cursory inspection could reveal no such changes, I think its the same board- and presumably a chip that goes down - I would love to know what part it is, but all the engineers i spoke to just offered to swop out the board.

I do wonder if engaging fast startup which uses 55watts even in STANDBY!!  is a causation

Samsung tv pcb isn’t the option as this pcb ( ve ) is made specifically for the Avant mkI. All of the connections are located there too. Microprocessor has to be programmed in the factory - that’s the only option but what’s failing ? ... capacitors, they have to be replaced but it is time consuming process ( cost ).

The same problem but with different symptoms ( no start up ) exists in BeoPlay V1s and also it is to do with the heat from the LCD - poor components, poor ventilation.

BV 11 and BV 14, where VE is below the screen are not affected by this. They got other issues ...

@Dazlinn

It seems that you have a choice of either dumping the Avant....or paying the prize to have the DVE board properly replacet.

If replaced you may look forward to use this still excellent BV for another 5 years (by then you’d probably want something else).

IMO it would be a pity to throw a BV Avant 55 away!

MM

I’ve seen cases when the VE had to be replaced again after a year or so due to the same fault ... sad but true ( metallica )