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NEC XG reset focus pots?

 
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mootwo



Joined: 26 Jan 2016
Posts: 12


Posted: Tue Jan 26, 2016 9:10 pm    Post subject: NEC XG reset focus pots?

Hi All.
In preparing to do a full setup on my XG110LC, I understand that I need to null all of the electronic focus controls FIRST, then do an optical focus. How do I reset or "zero" the three focus trimpots on the back of the chassis? Don't I need those to be reset as well so that I can start with the optimal optical focus first before moving on to electronic focus?
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gjaky



Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary

Posted: Tue Jan 26, 2016 9:30 pm    Post subject:

For full reset press on the setup remote CTL+NORMAL , then you'll be asked wether load or cancel, select cancel.
The best thing is to leave the electronic focus for the center at zero and set the trimpots at the back of the machine for best electric focus, if needed trim with the menu.

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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
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mootwo



Joined: 26 Jan 2016
Posts: 12


Posted: Tue Jan 26, 2016 9:47 pm    Post subject:

Yes I know how to zero the menu settings. What I'm asking is... Don't the physical focus trimpots count as part of the electronic focus that should be "zeroed" in order to do a proper optical focus, and if so, how does one "zero" a trimpot?
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Curt Palme
CRT Tech


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

TV/Projector: All of them!

Posted: Tue Jan 26, 2016 9:55 pm    Post subject:

No need to reset those, unless the menu focus range is off. You want to set the main center screen focus to -10 for optimal, and then it's not unusual for the left and right zones to be at +80 or so.

A CRT expert from long ago, Guy Kuo, told me to set the master menu focus to -10 instead of 0, as sometimes you need more range on the positive side with the L and R focus zones.
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hansilili



Joined: 09 Mar 2007
Posts: 302
Location: Köln, Germany

Posted: Thu Jan 28, 2016 10:08 am    Post subject:

Quote:
A CRT expert from long ago, Guy Kuo, told me to set the master menu focus to -10 instead of 0, as sometimes you need more range on the positive side with the L and R focus zones.


Good hint, gotta check that out when I'm back home. But I think indeed, that the edge focus is maxed out. Only I don't rember if its -100 or +100.

Oops, to access the focus trimpots the hushbox needs to be opened. Hate that Sad

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