BO Beovision 8800 - no spot killer

Hi,
I was hoping for some insight by more experienced people on this one:

Short version:
After repair (HOT) TV works fine, but spot killer is inadequate. Bang
and Olufsen

Beovision 8800, approx 25 years old.

Long version:
I'm a complete newbie with this. I got the TV for nothing, and using
Sam's FAQ I diagnosed a blown HOT (BU208), replaced it, and the fuse,
and presto the set came on. A slightly bright picture and inapropriate
range in the brightness control got me to experiment with the pot on
the neck of the tube. Adjusted to a better range, and I now can get a
black screen when the brightness is set to zero. The picture is stable,
bright and I found a 'one for all' remote to work (most)of the user
functions.

So far so good. The only disappointment is a bright spot for a few
seconds after the set is turned off.

Turning off, the screen goes dark for a split second, then the spot
appears, also for a short time (less than 3 seconds) and fades off.

Now, given the age of set and the outrageous price I paid for it, and
my complete inexperience in the topic, maybe I should think myself
lucky and leave at that. But I would be surprised to think a BO set
would have this 'feature'. Also, maybe, I think a total fix might be
within reach, only if I new where to look (a weak capacitor in the
horizontal oscillator supply, for example).

Call me sentimental, but this is the first TV I have fixed. It would be
nice to get it 'just right'. Also I hate sending stuff to land-fill
unnecessarilly - I assume the tube will not last long before a 'burn
in' in the centre of the screen.

Please help me finesse this job and indulge my obsessive tendencies ;-)


Thanks

Philippe

.

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