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Focus problems on green tube again
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AVphile



Joined: 02 Dec 2008
Posts: 334
Location: Ottawa, Ontario

Posted: Fri Nov 25, 2011 3:59 pm    Post subject:

Curt Palme wrote:
Look into the lens with sunglasses. THat sounds like a Scheimpflug issue, not an electronic one. It's optical focusing. If the tube image is clear on the tube face in that corner, it's not electronics.


OK, when I look into the lens that same corner is more out of focus than the others.

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AVStefan
Old setup: HDFury3 -> BG-808s -> HD-145
New setup: JVC D-ILA -> Stewart StudioTek 130 G4
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Fri Nov 25, 2011 4:38 pm    Post subject:

OK, so it is an electronics issue. YOu're not too close to the tube phosphor edge? If not, then I'd check focus and astig settings at 100% contrast. The edge controls of each have far less effect than on say a Marquee, but they should do something. You might have a bad focus or astig board. I've got lots here if you need one.
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CasetheCorvetteman



Joined: 09 Nov 2008
Posts: 6326
Location: Australia

Posted: Sat Nov 26, 2011 3:37 am    Post subject:

AnalogRocks wrote:
CasetheCorvetteman wrote:
In my case it was certainly not a focus issue.


Cut out the beer before hand. Laughing

Hahaha!! I generally stick with scotch to get best focus Wink
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