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my_pet_monster
Joined: 19 Jan 2009
Posts: 2
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| Posted: Tue Jan 20, 2009 8:44 pm Post subject: 07MP Tube surface temperature (in a VPH-1272QM) |
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Hi folks.
I am Philipp from germany, i currently modding my 1272 to get a lower noise during operating. After i have identified the power supply as the loudest device in the projector, i removed it. I will mod it later to get really silent.
Now i took two test runs. The projector displayed a whitescreen. The electronics in the projector are staying really cool, seems not to be a problem. But the green and the blue tube seem to produce a large amount of heat on the surface. I measured about 50°C at the plastic mount (see image) of the blue tube.
Is this really a problem? And if it is a problem, what is a good temperature for a 07MP tube? How do projectors of other brands cool thier tubes?
regards
Philipp
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| That is where i measured about 50°C |
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tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
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| Posted: Wed Jan 21, 2009 1:40 am Post subject: |
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Temp spec for Panasonic 9" tube (I don't have info for 07MP). 100 degrees max in center of face. Max difference is 20 degrees in other areas. Too much difference can cause tube to break.
Scott
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_________________
"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
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my_pet_monster
Joined: 19 Jan 2009
Posts: 2
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| Posted: Wed Jan 21, 2009 10:49 am Post subject: |
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Hi Scott.
Many thanks for the info.
So i think that 50°C is normal temperature for a tube that is driven at its maximum (whitescreen).
regards,
Philipp
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