CurtPalme.com Home Theater Forum

[amt_austin]

I am finally getting a chance to play with my NEC XG-75, and after a quick adjustment of various settings (including convergence), it looks alright. It can't reproduce a 1-on-1-off pixel pattern, but it still looks ok. So, at this point I think I am done for now, and I make sure I store the settings, then pop out the DVE blu-ray disk, which, on the PS3, causes the XG to re-sync for a moment. As soon as the XG syncs back up the the PS3 system menu (on exact same input on the XG), I can tell the convergence is off. I go ahead an pop in a different blu-ray, and sure enough, the convergence is still off. All of the other settings (like focus, raster size, etc) seem to be fine, so I am pretty sure the settings got stored correctly. It's just the convergence that's off a little bit, but enough to make the picture terrible. So, I go through the whole convergence process again, store the settings, then watch for a few minutes, then decide to switch to a different source (but same input on the XG -using a HDMI switcher). Once again, convergence is off, still using the exact same input on the XG. This is getting to be a real PITA! I try the PS3 again, and it's off, too.

Is there something to remedy this? It seems like when the XG has to re-sync the signal, that causes the convergence to drift a bit. It does not seem to drift during viewing, only when it needs to re-sync (to what ends up being the same signal on same input). I am not making massive adjustments with the convergence controls, alignment happens with the other controls, then just fine tuning with the convergence controls.

Thanks.

-Andrew

[Mark_A_W]

Are you SURE you are feeding the XG the same signal each time? A different SOURCE is a different input. It doesn't matter if they all enter via HDMI, they have different timings.

Every different signal timing will need a new setup (you can copy if they are close in scanrate).


I don't think you understand the memory structure yet..


And did you wait for it to warm up before converging?

[amt_austin]

I am 100% sure it's the same input. Even when not switching the HDMI switcher, and just ejecting the PS3 blu-ray and inserting another blu-ray causes this problem. And I have always checked to see that when the XG does re-sync, it still shows the same input name. Yes, warmed up for at least 30 minutes.

[Gary M.]

this happened to me about 3 or 4 times over a 2.5 year period with my 1352LC, like the PJ got stuck in between between a block or something, unplug the sources with the unit on, turn it off, turn it back on and connect sources

should do it messing around with things like this a few times

-Gary

[amt_austin]

Thanks for that tip Gary. I sort of remedied my problem. I have a new Pioneer FPJ1 (RS2 clone) arriving in a few days. Even without this current issue, it has become clear to me that I need to reduce my setup & maintenance time for my projector, hence the digital. I have too many other projects and distractions going on to take up the CRT hobby.