The Workbench

Re: Blue flyback lines on Beovision 3-32

Paul — Sun, 31 Oct 2010 14:02:53 GMT

hi, can you explain me a bit more about taping the tube?

Re: Blue flyback lines on Beovision 3-32

joeyboygolf — Sat, 02 Jan 2010 02:35:05 GMT

Tim gave a 3-32 this treatment for my son Brett. It lasted about 12 months before finally giving up completely.

Re: Blue flyback lines on Beovision 3-32

nobby — Fri, 01 Jan 2010 16:24:33 GMT

I know that Tim J. has tried this ... it tends to be a shortlived fix ... but if you get a few months out of an otherwise useful set, its got to be worthwhile.

Neil

Re: Blue flyback lines on Beovision 3-32

ipaul — Tue, 29 Dec 2009 11:18:22 GMT

Really ??, because this setting is very unlikely to alter/need adjustment just like that and if you change it it'll change your colour balance (resulting in your white not being white anymore and/or black not being black anymore).

If it is a bad tube changing the setting may ''fix'' it for the time being...

@Nobby and ts and others: just a few hours ago i had a BV3 with the same effect and indeed one of the sick tubes.

However, inspired by another forum i'v experimented a bit and found a method which seems to work most of the time, up 'till now i fixed the tubes of a AV5, 2x Avant 28 curved, 2x RF 32 and now BV3-32.

It takes a bit of care and explaining but it is fairly simple, the trick is actually making the heather glow very strong and tapping the tube.

I have no idea how long this ''repair will hold but the AV5 is already in use for weeks without a priblem, so are the 2 28 Avants...

So Wink, i also suspect your tube but if it appears to be that it's not a 100% lost case.

Re: Blue flyback lines on Beovision 3-32

wink — Sat, 26 Dec 2009 09:59:56 GMT

Update - problem fixed! Downloaded the service manual & followed procedure to adjust screen cutoff voltage, which was too high. Everything perfect again

Re: Blue flyback lines on Beovision 3-32

nobby — Sat, 28 Nov 2009 14:20:56 GMT

Its likely that the tube is dying ... it would appear that a very high percentage of B and O widescreen sets suffer from this.

Neil

Blue flyback lines on Beovision 3-32

wink — Sat, 28 Nov 2009 14:01:23 GMT

As it says, my Beovision 3-32 is suffering from visible blue flyback lines when showing a blank raster. Actual picture colorimetry is still good, so I guess it's just blue drive level. Can anyone tell me how to get into the service menu to adjust it? I'm an ex-tv engineer btw, so quite happy with line-up procedures once I can access the menu. Thanks.