CurtPalme.com Home Theater Forum

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

winduptoy · Posted: Tue Apr 14, 2009 9:49 am Post subject:

Hi,

Just a quick note before I head out; The gamma boost adjustment on these things takes as many as 18 turns to go thru the adj. range. Throughout most of that it looks like nothing is happening. Then for a few turns, it does. First you will see it in the shadows, then the whole image will get brighter. Before you attempt gamma adj., put up the pluge pattern from DVE or the THX logo from a disc that has the optimizer and set your brightness. Then the sweet spot where near blacks are boosted before the big jump in brightness will be easier to spot.

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

I had already tried it on the internal greyscale patteren last night. Believe me when I say I took it from one end to the other and nothing. Yes its a lot of turns to get from one end of the adjustments to the other. I tried several different dvds. I will try a different test pattern tonight that has a greater number of bars than the internal test pattern but unless the range on this is minimal I would have expected to see at least some change on the internal test pattern and for the blackest bar to start to get grey at the top extreme of the adjustment but it just didn't. Thanks for all the replies. I will try a few more things.

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

the internal grey bars wont be affected since they dont go through the moome box. you need to use a test disc.

Athanasios

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

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

Turn the adjustment about 25 time clockwise to have the gamma totally off. Then do the greyscale using an external pattern. do a quick by eye set up. then keep the pattern up and turn the adjustment counter clockwise, they boosts gamma.

Athanasios

WTS · Joined: 08 Mar 2006 Posts: 1276 Location: Calgary

don't forget that when you boost the gamma you'll also be increasing the video output level above the .7vpp, so you'll need to adjust the gain back to .7vpp. It's best to cycle back and forth gamma/gain. If your gain is too high it will appear washed out. Actually the best way to set it up is to have a scope. The gamma adjust actually kicks in fairly soon as you start to increase the gamma. Use a scope and a step pattern going from 0 to 100ire.

drice1234 · Joined: 07 Oct 2006 Posts: 1309 Location: Allen, Texas

WTS · Joined: 08 Mar 2006 Posts: 1276 Location: Calgary

Ah yes, there is that problem.

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

You guys kill me. As soon as I get everything else under the sun done tonight I'm going down to work on it. I will report back.

Thanks to everyone!

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

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

Yepp, just find the correct contrast and brightness. remember brightness is the Black level and contrast is the White level.

Athanasios

WTS · Joined: 08 Mar 2006 Posts: 1276 Location: Calgary

Lori,

I was referring to the gain on the moome card not on the Marquee. Of course for the overall setup you'll be adjusting the gain/bias on the marquee.

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

At this point I'm afraid I must have one that's bad. I have my test pattern up and brightness down to where the second to last bar is barely distinguishable from the darkest black bar and I've cranked the gamma all they way and no change at all

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

And yes its the thx optimizer, not the internal pattern

**AnalogRocks** · Posted: Wed Apr 15, 2009 3:28 am Post subject:

Wo(w) man this sucks!

In all the theaters in all the world and the bad Moome has to walk into yours.

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

This is always my luck. Leave it to me to get stuck with something defective and have to wait for an exchange

I'm beginning to wonder if I should have bought the fury. I'm about ready to peek inside the case to see if something looks out of place.

loribates · Joined: 02 Dec 2007 Posts: 185 Location: KS

I'm done. I'm tired of screwing around with this. I damn near have carpel tunnel from turning that litte pot a zillion turns both ways. Fwiw the contrast doesn't do anything either.

I've also found another glitch. The first time I thought it was a fluke but after the 4th time... It locks up when adjusting the picture position and the screen goes black. The only way to get it working again is to pull the plug.

Unless anyone can tell me if its worth opening up to check on anything in particular I'm going to have to make a decision. To exchange it and take a chance on another one, to live with it as is and spend another 100 and add the gammaX, or return it and go with the fury and gammaX.

I don't seem to be the only one according to all the posts I've read in the moome section of the forums. I'm disappointed because from my studies this was supposed to be superior to the fury and better quality.

Anyway, I thank you all for your patience and assistance in trying to solve this

1031 · Joined: 22 Mar 2006 Posts: 657 Location: Finland

Lori, have you checked what is your clamp setting on marquees picture menu. It should be auto. This is just 0,1% possibility that could be case.. But better check.

schmoe · Joined: 30 Mar 2008 Posts: 374 Location: Seattle, WA

What does that setting do anyway?