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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Fri Jan 09, 2009 2:51 am Post subject: G70 Magnetics Questions |
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Hello,
When setting up a G70 do you have to do any magnetics adjustment by hand? I've gone through all of the electronic magnetic focusing, is this all that has to be done or can you get real improvement by fine tuning the magnetics by hand?
Thanks,
Erik
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betel
Joined: 20 Apr 2006
Posts: 448
Location: Maryville, Tennessee (Just South of Knoxville)
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| Posted: Fri Jan 09, 2009 3:25 am Post subject: |
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Unless someone has attempted to adjust them or the tubes were replaced, they don't need to be adjusted. They CPC rings should have a blob of silicone on them to hold them from moving..
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sat Jan 10, 2009 12:02 am Post subject: Re: G70 Magnetics Questions |
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| Zebu Fellenz wrote: |
When setting up a G70 do you have to do any magnetics adjustment by hand? I've gone through all of the electronic magnetic focusing, is this all that has to be done or can you get real improvement by fine tuning the magnetics by hand?
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How original is your set? When you reset to factory how decent is your geometry?
1) Do you apply a lot of electronic SKEW? if so your focus coils (yokes) might need tweaking to correct the horizon.
2) With a dot pattern if you adjust MagAll from under to over focus do the dots drift? If so you might need CPC tweaking.
I ran a couple years without adjusting the magnetic's. I experienced some drifting an convergence errors as the PJ warmed up.
After adjust the yokes and CPC magnetic I experienced very little drift and I might touch convergence twice a year.
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