Hi, if Lee can send you the woofer (which looks a lot like an Avant type anyway...if so i'd have some for you also :) ) maybe he can also send you the board at the back of the tube, with the focus potmeter on it.

Btw i'm assuming you're confident enough with tv-electronics to work on it....:).

Most likely your fuzzy screen is caused by a broken/bad focus-unit, ordering new would be the best of course but a donorpart might do for now...:).

Most likely all other picture (or rather: geometry-) problems are a matter of re-adjusting the geometry in the servine menu.

To get there, there are 2 pins on the Av board (with the scarts) close to the scarts, make a short shortcut and the tv will show the service menu.

With the beolink you can select and adjust values, exit (beo4) or tv to store and exit.

I know the tweeters are the same as those found on Avants (oh, and lab 6000/8000, probably others too), so I wouldn't be surprised if this were the case for the bass drivers also!

Hi Lee,

The red displays in the control center are the same type as the ones in MKIII pentas. There are 4 modules in an AV9000, and 3 per penta display. If you have to scrap another AV9000, then you'd have enough display modules to make a set of Pentas with red displays, if you so desire.

Looks really nice when paired with a Beosound 9000.

Ipaul, I've just finished switching the focus-unit with a never used one about 10 minutes ago, but the fault is still there... I couldn't get a sharp picture on the TV, no matter which position the potmeter was adjusted to. As I suggested before: I think the fault has something to do with the high voltage. There's something wrong with the powersupply I think. 🤔 

Ipaul and Llewelyn, I've looked in the servicemanuals for the different TV's (Avant and AV 9000), but the number on my AV 9000 woofer, doesn't match any of the numbers in the Avant servicemanuals, but that doesn't matter, if Lee has a woofer! 🙂

Best Regards

Loudspeaker

Well Loudspeaker if you give up my AV9000 is currently for sale and 100% working + not far from you.

Thanks for the offer, Friedmett, but I only bought the AV 9000 because it was so cheap! Else I would have waited till I could get my parents AV 9000! 🙂 And I'm not giving up that easy, I love Bang & Olufsen equipment especially from the 90's, so I don't mind messing a bit around with it! 🙂

Best Regards

Loudspeaker

Ok, the next step would be to check the +150 V (or so) powersupply to the HT trans, if that is ok the transformer itself might be suspicious..

9 Lee, last Wednesday I sent the list to the e-mail adress you gave me, but I don't know, if you recieved it? 🙂

Best Regards

Loudspeaker

I did indeed - i've an email on its way to you with some questions though! 🙂

Lee

Hi again! 🙂

I'm thinking about taking the contrast screen off the TV to clean the backside of the screen, but I don't know what to clean it with, in order not to damage the anti-reflex coating - Does anyone know what to clean it with? 🙂

Best Regards

Loudspeaker