CurtPalme.com Home Theater Forum

cmjohnson · Joined: 03 Apr 2006 Posts: 5180 Location: Buried under G90s

shar1950 · Joined: 10 Feb 2009 Posts: 80 Location: alberta, canada

after doing the quick tape and mark test, I only need to redo my blue cpc magnets. Which setting will I need to set to 50 or zero ?

cmjohnson · Joined: 03 Apr 2006 Posts: 5180 Location: Buried under G90s

50 is the midpoint. Ideally, everything's perfect at 50.

CJ

tse · Joined: 03 May 2006 Posts: 1014 Location: Sweatbucket, Fl.

It helps alot to null the CPC rings before trying to align the magnetics. First, pick off the stuff used to seal the rings so they freely rotate. There is a good chance they will strip out if you don't. Set the rings to null by overlapping the little tabs, like the yellow ones in the pic. REMEMBER, the CPC rings are ONLY for adjusting the CENTER of the image. Ignore the sides and corners. The dynamic circuits correct those.

Scott

tse · Joined: 03 May 2006 Posts: 1014 Location: Sweatbucket, Fl.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Setting doesn't matter when doing the CPC, you need to defocus and over focus to change the dots size and see the bright dot in the center. after is when you set overall focus.
Now in the RGB focus menu you can set to 50 is thats what you mean, but i set all to best focus i could even with incorrect CPC settings, reason is for the same reason Scott mentioned above, the focus magnets are not perfect,then i went back and double checked, it usually stays the same.

Athanasios

shar1950 · Joined: 10 Feb 2009 Posts: 80 Location: alberta, canada

I just want to know if any thing electriconic would have to be nulled before I start working with the blue cpc magnets.Can I just put up a dot pattern and start nulling and adjust the 4 and 6 pole magnets first ? Or do flare first and then 4 and 6 pole ?

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

shar1950 · Joined: 10 Feb 2009 Posts: 80 Location: alberta, canada

ok after the magnets are null, can I rotate the unit around the tube , to better handle the knobs for setting ?

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

yes.

shar1950 · Joined: 10 Feb 2009 Posts: 80 Location: alberta, canada

If I just want to get perfect dot and beam, the shapest possible lines, do I need to initialization of the PJ ? My mechanical setup is good,just can't get good beam size.

wadde · Joined: 19 Jan 2010 Posts: 27 Location: Sweden

Hmm. Those 6-pole CPC-s .. Wich set do they come from exactly ? My 8500 only has the 2-pole... and that gives a hunch is why i cant get the "blobs" round enough and keeping the dot in the middle, without electronic astig afterwards.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Yes you need a set, even with electronic Astig they really help.

Athanasios

shar1950 · Joined: 10 Feb 2009 Posts: 80 Location: alberta, canada

all blue cpc magnet nulled and in the menus I have set all setting to 50. The red and green beams are still nice and narrow, well focus. The blue beam is twice has wide has the others, it's beam and lense focus is good.
How do I get it to the same width has the green beam?

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

I thought Id post this here.

I'm preparing a Marquee PJ for Jeff who has the Mitsu VS 1281( we're trading). The Convergence timing was way off for Band 2( all I looked at so far) I had to go to 0 and it still is not all the way timed correctly. needs about another 1.5".

Also the Top and Bottom PIN are way off. It moves the right top side of the Grid(Floor mounted) not the center. Now I have tried other CLM's and HDM's and it still does the same thing on all colors. I guess those timing are saved on the Back plane Chip and not the CLM.

So Scott, what can I check? An initialization does nothing. Also there is an issue with the blue Grid. it slants towards the top left side as it goes up from bottom to top of the grid. I'll try to get a pic. I cant bring in that top corner for convergence no matter what, with all CLM's and HDM's I tried. I think I might have to adjust the horizon manually with the deflection coil but the bottom screen( top looking in tube) is level. Is the convergence coil possibly shifted?

I'll send you an email as well.

If anyone else has an Idea chime in.

I was hoping to get this ready for him by next Tuesday. Sad

Athanasios

dvh99 · Joined: 25 Dec 2009 Posts: 2158 Location: nederland

i thought i posted in this thread but it seems to be another thread also started by chris (around the same time), how time flies by.

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Say Nash

The convergence yoke may not be levelled to the scan yoke. Go to a zone and see if the grid goes straight up/down or is it vectored?

Look here and scroll down to Pic 8: http://www.etechvideo.com/techtip9.htm

.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Well the Blue deflection coil some how shifted. I got that. I was told that the Contrast modulation delay timings also are for the geometry timings. So you go into Bow and adjust it way up and then adjust the contrast timing till the Bow is centered in the grid.You use the bandwidth resolution on internal res for what you plan on running the PJ. Same as Convergence timings.

Again here I went all the way to zero and I still need to move it more. This is strange. I never noticed this with this chassis before.
It sat for a few years now, hmm. Different CLM's and HDM's all produce the same issue. I wonder if the VDM could be the problem?

Athanasios

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

OK

Well I have yet to see a Marquee where the timing settings were not all at 50.

.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY