CurtPalme.com Home Theater Forum

[dturco]

[Nashou66]

I remember talking about this on another thread with you. Red is a little less focused due to the nature of the phosphor but usually only a slight amount. Turn down the contrast to about 20 and remove lens and see if they still look fatter than the green.

Athanasios

[dvh99]

getting all things right is a daunting task.

1: did you follow tims instructions from his site regarding magnetics alignment?

2: did you use a test pattern to tweak astig?

3: is the pj positioned correctly?

4: do you have the peaking circuit installed?

5: is scheimpflug set up right?

as you know some of these interact so it`s back and forth.

the deflection is covered with a lot of glue, get as much of as possible so you can put it as far forward wie möglich.

here is a testpattern in case you didn`t have this already, i used for tweaking astig.
with this pattern you can instantly see what the horizontal and vertical 1on 1off lines do.

[dturco]

Thanks, Curt, Scott, Tim, Nashou, and Dennis and anyone I may have forgot. I am wiped right now and I will try again tomorrow. I think the neckboards are running hot and causing me grief.

[dturco]

Oh and one more thing I am using the Orison fluid with these tubes. I think I am going to fill the LCP blue with the Orison stuff and see if it is causing some of this focus issue.

I got nothing to lose doing it, so I will try it and see.

[dturco]

[dturco]

Well just for the hell of it I tried the magnetics again. No dice still a crap picture, all fuzzy and out of focus, the 1on1 off on the DVE test disc isn't even there.

So in a desperate attempt to see if the focus adjustments will help into the service menu I go...no improvements at all

Well I'm in the service menu so I'll try the stig adjustments...... Bam instant focus The 1on1 off snapped into focus.

I had to ramp up green stig to 85 to do it, but it works

I also swapped neckboards to see if that was the issue. It kinda was somewhat of an issue, something just must have been lose because the RED stopped streaking


So I guess I'll put the blue tube in next and then do a complete re-initialization, and a very careful mechanical alignment.


First impressions of the PT-22's The colors are off, a little weird yellowish and my red is more orange than before. I do have the RED color corrected C-element and Green too. I am not too concerned with it, Galen [zGman] said that D6500 would not happen with these tubes ..he was right... of course. But the over all image is really good. Great depth and transparency. Clouds can be seen through. They are wispy and floating, before they were more solid white and not so easy to see through.

The G-2's are 58 on green and 61 on red. The old tubes were 69 red 60 green and blue is 71! I'm sure it will be lower with the new tube.

It's funny though, the contrast is still 65 and brite had to be raised from 50 to 55. I wonder why that is?

All testing is being done with 1080p@60hz.

Anyway just keeping the updates going.

[dturco]

I am beginning to think these tubes are my focus issue. The PT-22 neck is a good inch and half shorter than the LCP tube neck. I think it is making it impossible to focus without the use of electronics.

I have the stig and focus boards unplugged. I can not get the center of the image to focus with just mechanical aim, and magnetics.

I have used the 2 pole magnets from the Marquee and then the 4 poles that were on the tubes that came with them. No center focus can be had. The edges look great... center crap.

If I use the focus control and de-focus down from 50 to 26 the focus snaps into...well focus, nice and sharp.

I can get good round dots at 0 focus, but when I try to ramp up the focus it goes to hell.

This is on all of the tubes, not just one. So I don't think it is from damage while moving the magnetics over. There was no hot glue on anything at all. They came right off and went right back on. The work was done on a Formica counter top, not carpeting, or metal surfaces.

If I use the stig and focus I can get a good picture, a really good picture. So all is not lost. I am just trying to isolate all possibilities.



Could it be the lack of room on the tube neck is causing this?

[Nashou66]

I dont think tis lack of room. Just different tubes. One thing you could try it to disconnect the focus board connectors and remove the astig board as well and then loosen the clamps from the focus coil and CPC magnets. now move the focus coil up and down the neck a little and turn on to check focus, look for the spot it is best. you could try it while its running but the static charge shocks suck!! Rubber glove might help, I have done it this way but i know how you are with electronics

Nashou

[dturco]

[tse]

[dturco]

Cool Scott, Thanks