Trevor,

Welcome to Beoworld, and sorry that no one has replied to your post. I am sure that someone can help you.

The tube will be a Philips and used in other sets, but I believe a B&O spare comes complete with delflection coils already fitted and aligned.

The "chassis" change is now B&O policy when any fault develops, to speed up the repair and it takes less skill, but of course is extremely expensive. As a result, no service information is available to fault find at component level.

Perhaps you could ask a good tv service engineer to have a look at your Avant and advise you, it may be possible to find a cost effective solution.

Best wishes,

Neil.

Thanks for the reply, Neil.

The Avant 32 tube is LG/Philips W76ERF041X044.  Does anyone know if there is a way to look up which other TVs used this tube?

I've got a Grundig Xedance with a W78ERF042X044.  I don't know about the LG/Philips tube numbering system.  Is there a way of checking whether or not these tubes might be interchangeable?

I've got a Grundig TV service person (recommended by my local high-end audio shop) who will undertake the component-level repair to try to save me the trouble of the "exchange chassis" policy.  If he identifies faulty components that he can't source, I will be making an appeal to the forum for them!  But that's mute if I can't source the tube reasonably.

I googled the W76ERF041X044 and Video Display Corp (vdc.mybisi.com) in the USA came up.  Has anyone dealt with them before?

Best regards,

Trevor.

Hi Trevor, i recently had an Avant with a W76ERF042X44 tube, which is a RF32 VTR Avant.

The tube in your Grundig should be too big (W78 instead of W76).

Overhere in NL i know a guy who has replacement tubes nos avaiable for 100,- but although technically fine the pic quality is not as good as the original.

On itself with what you describe i don't think there's anything wrong with the chassis, but probably with the tube (only, bad enough already).

So far with 'glowing and tapping' i managed to fix already about 5 tv's, i don't know if you're ok with working on tv's and tubes since this is a very cheap fix (don't know how long it'll last but spending 100's of dollars is no option anyway imho).

I think i posted something about this somewhere here (was away for a month) but otherwise if you want to know you can pm me.

As for the width: did you chose the correct way ?, chosing 'format' and than 1 or 2 or 3 (i think 3 = 16:9) should fill the screen, and in 1 or 2 you can 'cycle trough' with the arrows on the beo4 between 4:3, 14:9 and 15:9 so not full screen (in other words: if this is your case this is correct, when looking at a 4:3 source signal).

When a true 16:9 signal is fed to the tv is should automatically change to full 16:9 screen.