Good evening! 🙂

A few weeks ago I bought myself a Beovision AV 9000. I bought it with a fault described as, that the sound only was high frequencies, there was no bass. The reason for the sale was, that they didn't had the time to repair it, and that the AV9000 then filled to much, when they couldn't use it, so they just had to get rid of it. The first thing I did when I came home, was to take the fret of. BINGO, someone had kicked to the woofer and damaged the voice coile and the membrane.

The Beovision AV 9000 was not the most mint AV 9000, so it needed and still needs a bit work. So far I have cleaned the TV, changed the speaker cloth and and polished some scratches in the rear part away. I still need to fit the glass panels on the VX7000 (As I pulled out in the fret, the left piece of glass fell into my hand, so I decided to take the other of glass of too, because I didn't wanted to risk, that it also should fall of and then brake) and then I'm going to refurbish the metal plate.

From the point of view, that I only gave 100 DKK (11,25£ or 13,41€) for the Beovision AV 9000, do I think, that it was a fair deal! 😎

So far, so good! 😁

The TV worked fine for a few days after I got it... But... One morning while I was sitting and watching TV did I notice, that the picture begun to get fuzzy! I continued watching, and after about half an hour, was the picture so fuzzy, that it almost was impossible to see anything! My father and I took the rear part of the TV, and tried adjust focus. The picture got sharp again, but my father had to turn the potmeter completely to the one side, which was a bit strange, as the TV was working perfect the day before! We readjusted the potmeter and then closed the TV again. The next few days the TV just stood disconnected from the mains.

Then I thought, that it could be fun, to try and turn the TV on, to see, how it looked. I turned it on, skipped 2 channels when the picture out of the blue got sharp again! I left the TV on to see, if the fault was disappeared. It worked fine for some hours, and I also think, that it worked until next day, where it then got fuzzy again, but not quite as fast this time. The same thing happened again, it got whole fuzzy, and then it got sharp again. All this happened one more time, which maked it 3 times. Now it worked a bit longer, but then it started again... The picture slowly got fuzzy again, but much slower this time, and while I'm writing this, is it still fuzzy.

Today I spent the most of my day with searching on the internet after information on, what the fault could be caused by, but I didn't found anything useful (And I know, that Beovision AV 9000's has identical main boards to them in the Beovision MX 6000's, but I didn't found any useful information neither as I searched with "MX 6000") so now I don't know were to look and search anymore... but then it's good , that I always can ask on the fantastic site: Beoworld! 🤒

While the AV 9000 has been running have I noticed, or has there appeared more faults, which I then have noticed, and all the faults I noticed are:

*The picture gets fuzzy, and then sharp and so on, so in a way it's unstable (Maybe it's the high voltage that's unstable, but I just don't know, what's making it unstable...?) (1)

*The picture bends inwards. (2)

*The picture is jagged in the sides. (3)

*In the top and in the left side of the picture are there some colored lines, where the one in the top is the most visible. (4)

*There often appears a white dot in the top of the picture, but it's different how visible it is. (5)

I don't know if all the faults are caused by the same component, or if the faults are caused by a component each, but the fuzzy picture was the first one to appear, and as far as I remember did the other faults appear at the same time, so the fuzzy picture is the first one to solve!

I have attached some pictures of the faults (The faults and the pictures are numbered!):

(1)

(1)

(2)

(3)

(4)

 (5)

Does anyone have an idea about, what could be wrong? 

I hope you can help me with this fantastic piece of Bang & Olufsen!

Best regards

Loudspeaker

If someone has a spare woofer for a Beovision AV 9000, then please PM me! 🙂