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CRT BUBBLES

 
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ilias



Joined: 20 Apr 2007
Posts: 116
Posted: Tue Oct 21, 2014 9:16 pm    Post subject: CRT BUBBLES
Did you know a friend, what are these bubbles on green lamp
of my G70;

IMG_0003.JPG
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 Filesize:  146.72 KB
 Viewed:  3250 Time(s)

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IMG_0002.JPG
 Description:
 Filesize:  139.5 KB
 Viewed:  3250 Time(s)

IMG_0002.JPG
IMG_0002.JPG
 Description:
 Filesize:  139.5 KB
 Viewed:  3250 Time(s)

IMG_0002.JPG
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AnalogRocks
Forum Moderator


Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G
Posted: Tue Oct 21, 2014 9:20 pm    Post subject:
Did the lenses see sun? That looks like burnt C-elements
_________________
Tech support for nothing

CRT.

HD done right!
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ecrabb
Forum Moderator


Joined: 13 Mar 2006
Posts: 15909
Location: Utah

TV/Projector: JVC RS40, Epson 5010
Posted: Tue Oct 21, 2014 9:31 pm    Post subject:
AnalogRocks wrote:
Did the lenses see sun? That looks like burnt C-elements

It's possible, but they look more like actual air bubbles to me, trapped right at the edge of the LC chamber.

SC
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ilias



Joined: 20 Apr 2007
Posts: 116
Posted: Tue Oct 21, 2014 9:49 pm    Post subject:
AnalogRocks wrote:
Did the lenses see sun? That looks like burnt C-elements



No, no SUN! the pj have 17000 hours!
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km987654



Joined: 25 Jul 2007
Posts: 2874
Location: Australia

TV/Projector: Barco BG809s

Posted: Wed Oct 22, 2014 5:59 am    Post subject:
Check to see if there is any glycol leaking into the chassis of the projector under that tube. I would agree with SC they do look like air bubbles.
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Ile



Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland

Posted: Wed Oct 22, 2014 7:20 am    Post subject:
Remove lense to see if it's air bubles inside c-element or crack in glass lenses edge.
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ilias



Joined: 20 Apr 2007
Posts: 116
Posted: Wed Oct 22, 2014 1:04 pm    Post subject:
Yes! tnx!
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