CurtPalme.com Home Theater Forum

[RickNa]

Trying to get the final touches on setting up my G90.

Background - new red and green tubes, old blue tube to be replaced

The main issue I have is having the unit remembering and applying the settings to my inputs. I believe I am following the manual correctly but it seems I am missing something.

I go through all focus and registration procedure on Input 1 with no active input present, as the manual states.

I save all changes as I go along. At the end of focus and registration, I do a "hard" save by holding the memory key down for 5 seconds and specifying focus, then registration.

Now, when I put a source to my inputs (DirecTV through a scaler to Input 1, and BluRay via HDMI to a Moome card on Input 2), none of the saved focus and registration gets applied. I have to go through and readjust everything while the inputs are active to get them to remember. And when I go to standby and back, those inputs still need to be tweaked some.

Can anyone tell me what I'm doing wrong here or should this "just work". I have tried changing the video memory assigned to the inputs but it doesn't seem to pick up the original convergence work. The whole video memory/input memory descriptions in the manual are tough for me to grasp, so I thought I'd see if anyone who converges these boxes regularly has any advice.

The other issue I have is getting the colors right. Is this because I have the one "weak" blue tube and two new ones? It seems, for example, I cannot get the amberish color when I compare my plasma showing the same thing as my G90. I've tried to tweak the gain and bias but no combinations seem to work and I go back to the stock 6500 or 9500 settings, which also don't look correct on screen.

Any info would be appreciated.

Thanks,
Rick

[HaydnG90]

Sounds like a dead DALLAS chip. Is your's original to the pj? If yes, then that's the most likely explanation why your settings aren't being retained. The internal Li battery is rated for 10 yrs of life.

[CIR Engineering]

[RickNa]

Craig,

Thanks for the very detailed answer and "demystifying" this all for me. I will follow your instructions on the convergence (nice to know I was in the ball park!). And thank you on the color, I suspected as much on the gain and bias and you are right, the plasma probably isn't a good benchmark.

I'll report back in a day or so and let you know how it turns out.

And as far as the Dallas chip, it would appear both YA boards have the failure-prone chip, I'm working that problem separately.

Rick

[HaydnG90]

The DALLAS chip and the IC421 (doomsday) chip are completely different. The former sits in a socket on the YA and is user replaceable. All the calibration settings, timer hours etc are stored on this chip. If you have the original chip now is the time to replace it even if you think the Li battery is good. You're on borrowed time now.

[CIR Engineering]

[RickNa]

Thanks again to everyone's input on this. Status update, first off, the Dallas chip has been upgraded, I sent a pic to Curt and he confirmed it is dated in 2011. I went through the process, at least partially, as you said Craig and both inputs a and b are now using input memory 13 (I deleted 13-15 first). And it seems to be saving everything as expected. I'll know more when I work on it tomorrow.

For the Red focus, I am able to get all regions very crisp except the right center and the lower right corner. Now would that imply the CRT tilt needs to be adjusted slightly both in the H and V directions? It would seem that would be the only reason those two regions would be tough to nail focus-wise. I can experiment a little but if you know what direction those adjusters should be turned, that would be great.

Thanks again all, the super bowl party is starting to look alot better now!

Rick

[RickNa]

Update, colors are way off. Watching the Pro Bowl, Yellow is pink, blue is greenish, green is almost greyish.

The DirecTV guide menu should be blue but is green on the pj.

Now, can I lay this off to having two new tubes (red and green) and an old worn blue tube? I will get a refurbished blue tube soon.

Thanks.

[RickNa]

Update - I looked at the colors coming in from the BluRay player through the Moome card and HDMI and they look fine. I can try to swap the two DirecTV receivers I have but can't eliminate the scaler. Not sure what's up there. I assume the input circuitry is on the BA board, is that worth trying to swap out?

[RickNa]

Uh, my bad, sorry. Loose Blue line on the scaler, girlfriend moved it to dust - doh!

[CIR Engineering]

I was going to ask if the box was analog component and if so...

craigr