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didaschi
Joined: 27 Jan 2009
Posts: 47
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| Posted: Sat Dec 27, 2014 12:50 pm Post subject: Sony G70 Spotburn? |
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hi,
since 2 weeks I have noticed something like a spotburn one the red tube when switch down my G70.
It looks like the youtube video I attach.
https://www.youtube.com/watch?v=2lv8JBojToE
Is there something I can do to fix it?
Regards
didaschi
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sat Dec 27, 2014 3:49 pm Post subject: |
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It's contamination in the tube. the 'firework' isn't strong enough to burn the tube, so don't worry about it. If you can't see low level flickering on the screen at black levels, then don't worry about it.
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didaschi
Joined: 27 Jan 2009
Posts: 47
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| Posted: Sat Dec 27, 2014 9:17 pm Post subject: |
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Hi,
thank you for your answer.
It`s good to hear. During watching movies I can`t see nothing on the screen at black levels.
Regards
didaschi
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didaschi
Joined: 27 Jan 2009
Posts: 47
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| Posted: Mon Sep 12, 2016 5:27 pm Post subject: |
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Hi,
the red tube is running for years without problems. Now, the blue tube is having the same spotburn. A bit larger than the red years ago and I see low level flickering on the screen at black levels.
What can I do?
Best Regards
didaschi
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Sep 12, 2016 5:49 pm Post subject: |
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Change the tube to cure it, otherwise you'll have to live with it.
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didaschi
Joined: 27 Jan 2009
Posts: 47
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| Posted: Tue Sep 13, 2016 7:35 am Post subject: |
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Hi,
do I have to change all three tubes or only the blue one?
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Tue Sep 13, 2016 4:43 pm Post subject: |
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Only change the tube with a problem. WHY would you change out tubes that are OK?
You'll have to recalibrate. But only the one tube.
Curt, thanks for that info about this weird spotkill issue. I have one new tube that has the same issue and I was concerned
that it was going to spotburn. Not so worried about it now.
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Tue Sep 13, 2016 7:56 pm Post subject: |
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| didaschi wrote: | Hi,
the red tube is running for years without problems. Now, the blue tube is having the same spotburn.
didaschi |
it's NOT spot-burn.
It's contamination on the electron gun , also called "secondary emissions" because it happens after the beam is shut off by the spot kill circuitry.
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kwoemm
Joined: 07 Dec 2012
Posts: 1
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| Posted: Thu Sep 22, 2016 4:09 pm Post subject: |
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Hi Didaschi
heard that from your blue tube. Got here one in Berlin, i think you are from Cologne, perhaps you can contact me.
best regards
kwoemm
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