CurtPalme.com Home Theater Forum

jbmeyer13 · Joined: 03 Dec 2010 Posts: 1135

Tom,

Is this the same 03 VIM you sent me? I see the line on that VIM which means that something must be different with your CLM's. What firmware version are your running on those CLM's?

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

4.x something but Scott told the longbows had a few other changes in the software, not only on the CLM but also on the HDM.And a few other HDM changes as well as a VDM change for 2.35 aspect and one more thing I forgot. I had a list of things to remove incase they didn't work for Home theater use but there was no issue so i left them as is.

You have to remember VDC had many special needs from customers, all sorts of weird geometry crap they needed to do.
So VDC just would sometimes add a software or hardware addition for those customers and not change the numbering
on the PJ's chips in all instances. On my HDM i know they did as I have other boards here that do not have that HDM software change. it also has about 10 other changes on the HDM.

Athanasios

stridsvognen · Guest

What is your gamma setting.?

If you post a screenshot of a native grayscale and gamma curve, i think ill be able to spot the line mod in the way it behave.

What CLM are you using, what firmware.? Year.?

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

its 2.235 I think or 2.25 . But it looks great.

These are 2004 builds. 4.x something firmware but the other chips I can't remember. But it doesn't matter from what Scott told me. They always didn't have the same software even if the revisions have the same number. My PJ's had LB in the serial numbers designating them as LongBows, that is how they knew what is in the PJ's.

Athanasios

stridsvognen · Guest

I have the exact same VIM as you have there.. 2004 built, and my CLM is firmware 5.0 something.

Is that the old Moome card with component inputs .?

What i understand is that the moomecard had some black level isues untill the last one.?

If you put a standard 02VIM with no line mod, and put up brightness, wont you get any lines on the tube fase when going out of black.?

jbmeyer13 · Joined: 03 Dec 2010 Posts: 1135

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

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

I have heard somewhere that the best firmware for home theater use was in the 4.xx range. Not sure where I heard it . So much info comes to me form different sources I can't keep track. I usually only go by what Scott tells me and from my own observations.

Nashou

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

There was also a couple parts changed on the FGM, some removed and then replaced with different values for who knows what Wink

Athanasios

jbmeyer13 · Joined: 03 Dec 2010 Posts: 1135

stridsvognen · Guest

tschaeikaei · Joined: 08 Apr 2013 Posts: 490 Location: Germany/Saarland

Hery guys, the idea with resoldering the neckboard was the right way.
Thanks Athanasios.
Resoldered the orange resistors and some more solderjoints.
I now only have a pale impression of the convergency raster on the red tube face.
Just to give you a hint... I read that the noise may have something to do with the internal pattern generator.
The raster does not show on the screen even if I drive contrast and brightness on a high level.
Doesn't hurt me at all.
Another thing is the line (faint, vertical).
Wich settings need to be redone after the linemod?
Is the changing of the black level significant? Can I (by recalibrating) archive the good blacklevel (as it now is)
again?
If this is not possible, the best solution would be to just lower all G2s a bit and raise the input brightness (by gammasettings).
Seems to be a controverse situation....
Best regards
Julian

stridsvognen · Guest

I think the biggest difference on the latest CLM is this shield plate shown on the photo.

I dont know if that is something changing the noise pattern on the tube, but they are different depending what CLM i put in.

I just changed the 5.0.1 to 4.2C Made a nice setup with 0 banding.

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

I finally just looked over the 2008 marquee boards And my CLM has the same shield and a 6.2 firmware.

Nashou

stridsvognen · Guest

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

stridsvognen · Guest

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

Steve from the older HiRez company worked as an engineer for Electrohome , he said that 4.4 or 4.3 was the best for home theater.
Madigral was the ones who supposedly created that version specifically for their PJ's. Justin relayed this info to me.

My long bows have 4.5 and its pretty good. I can't change that as my HDM has a specific Software and hardware mods on the HDM that tie in with the CLM. I did try another CLM once with the ultra DPB on it from the Long bow and it did converge properly.

So some software might work well in some PJ's and not that well in others. We need a list of the HDM software as well.

But I might try the 2008 CLM in there just to see and upload my settings there.

Athanasios

tschaeikaei · Joined: 08 Apr 2013 Posts: 490 Location: Germany/Saarland

Hey guys, interesting to here something about pros and cons of various software-versions,
but would you help me with the vertical line on my tubes?
Is someone here who thinksthe mod is worth the effort and doesn't have more disadvantages than advantages?
I'd like to remove the root of the line-problem, not just lowering the G2 and adding gamma.
Seems there is a parasitic oscillator or some reflection in the projectors internal signalpath.
I'd like to have that removed.
I'm reading further in other posts and will be back with more confusion.

Best regards, Julian

jbmeyer13 · Joined: 03 Dec 2010 Posts: 1135

Hi Julian,

I'd contact Mike Parker about trying one of his latest modded VIM/VNB combo's. I have tried both his modded VIM and another modded VIM that utilizes the tech bulletin line fix and in my experience Mike's VIM is a better option among other reasons since it doesn't raise the black pedestal. That line use to drive me nuts but I no longer see it and I'm able to maintain great black level without loss of shadow detail. I have yet to fully calibrate the projector for max performance but can still see the obvious improvements.

There may be certain combinations of CLM/VIM with different firmware versions that may reduce or eliminate the presence of that line but we are still trying to figure out the what and why. Nash doesn't seem to have that line on his longbows but we don't really know why that is. The later versions of the CLM not only have different firmware but also different parts (shielding, better caps/resistors, etc.) but may only work well when used specifically with other boards. There is still much to be discovered with the Marquee Idea

At this point in the juncture I see Mike's VIM as the best method to address this scenario. There are other benefits to his mods as well Very Happy

Regards,

Justin