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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Sat Nov 27, 2010 4:29 pm Post subject: Strange thing on blue tube |
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Hi!
I have calibrated my G70 when it's hot and when i fired it up the next day or so the blue tube is much more brighter. After about 30min of wieving it falls down to the right greyscale.
Can this be a Capacitor that loosing its value when its a little bit hot?
I think the blue tube need to be as bright as for the first 30mins. It seems more normal
Thank's!
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sat Nov 27, 2010 11:10 pm Post subject: Re: Strange thing on blue tube |
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| _in_peace_ wrote: | Hi!
I have calibrated my G70 when it's hot and when i fired it up the next day or so the blue tube is much more brighter. After about 30min of wieving it falls down to the right greyscale.
Can this be a Capacitor that loosing its value when its a little bit hot?
I think the blue tube need to be as bright as for the first 30mins. It seems more normal
Thank's! |
Tubes get brighter as they "warm up" but they must be hit with electrons to do this. So if you warm up with a black screen for 20 minutes the tubes will all be darkish when you start watching and the gray will be wrong. As the phosphors get excited the image will get brighter and the gray will go back to normal. Usually blue is exaggerated (excessive) when the tubes are cold.
You probably do have a blue issue based on your description though. I would try swapping neck cards between the green and blue tubes and seeing if the problem goes to the green.
craigr
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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Sun Nov 28, 2010 10:45 am Post subject: |
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Ahh god idéa! i will try that out
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