CurtPalme.com Home Theater Forum

piechest · Joined: 12 Jul 2014 Posts: 8 Location: Toronto

The convergence on my Sony VPH1001Q blue and red CRT's are way off. I tried using the control panel to adjust them but it did not work. Is there a way to manually adjust the CRT's or Lens? I don't have any spacers for the crt's, not sure if that is required or not. Thank you very much!

**Curt Palme** · Posted: Sun Jul 13, 2014 2:34 pm Post subject:

Um, how is the calibration off? What is the 'control' panel? did you download and follow the manual off the main site? Don't just dive into the set without knowing what you're doing.

piechest · Joined: 12 Jul 2014 Posts: 8 Location: Toronto

Sorry, i got my definitions mixed up. I'm having issues with convergence. I can't seem to line up the blue and red CRT's with the green. I have the install and user manual which i have become quite familiarized with. What i meant is the centering adjustment for rcent and bcent on the control panel. I have used this setting and still can't get the colours aligned. So i was wondering what procedure is needed to manually converge the red and blue crt's to the green.

**AnalogRocks** · Posted: Sun Jul 13, 2014 3:07 pm Post subject:

**Curt Palme** · Posted: Sun Jul 13, 2014 3:15 pm Post subject:

Can't align the tubes L-R, or up and down?

The green is your reference, make sure that the green raster is centered. Usually.. depending on your screen size, the L-R and up and down controls on the convergence board do have enough range. what screen width are you trying to project?

piechest · Joined: 12 Jul 2014 Posts: 8 Location: Toronto

Thanks for your suggestion. I tried it from a few different throw distances suggested in the manual but I'm still having the same issue. The bcent and rcent are both maxed out and there is about a 6 inch distance vertically and horizontally from the green (for both blue and red). The projector is level on a stand (not ceiling mounted) Any other ideas? Thank you

**Curt Palme** · Posted: Sun Jul 13, 2014 3:53 pm Post subject:

Are you sure the convergence connectors are in the right positions? If so, you may need to adjust the yoke rings that are on the tube neck, to center the raster to get it within range of the trimpots on the PC board.

See those gray rings towards the back of each tube that are sealed in place with silicone? One of those sets of rings will shift the image position, and should bring the R and B into place.

BTW, if you can put the R over the B image in the middle, then maybe just adjust the green rings to bring it over top of the R and B.

piechest · Joined: 12 Jul 2014 Posts: 8 Location: Toronto

Sorry, I'm not entirely sure where the convergence connectors are located and what I should be looking for. I can post a picture of the current set up. Thank you!

**Curt Palme** · Posted: Sun Jul 13, 2014 6:26 pm Post subject:

Sorry, that model of set uses those blue switches above and below the convergence controls to do the image changing vertically. are you sure all those switches are properly set? I remember if at least one isn't in the right position, convergence is impossible. Check the manual to make sure they are set correctly, and if so, post back and I'll walk you through it.

With the tube pix that you posted over at avs, post those here as well pls.

piechest · Joined: 12 Jul 2014 Posts: 8 Location: Toronto

All the switches are set correctly. I adjusted the grey rings and it is almost all lined up now. I'll post pictures to make sure everything looks ok. Can't thank you enough!

**Curt Palme** · Posted: Sun Jul 13, 2014 7:46 pm Post subject:

Cool! Post a pix of the final crosshatch pattern. What I've found useful if you have one corner off, is set all of those trimpots to 50%, then start with the green. It's amazing how much more you can dial stuff in when you start all pots from a neutral position.

piechest · Joined: 12 Jul 2014 Posts: 8 Location: Toronto

Great advice!! I still have a bit more tuning up to do, so I'll definitely try it! I didn't get a picture of it on the projector screen yet but it's getting there. I noticed that one end could be aligned and the other off a bit. Is there any fix for this? I ended up leveling the legs which worked quite well, but it would be nice to have a little more accuracy. Thanks again for all of the help today Curt! Wouldn't have been able to do this without it

**Curt Palme** · Posted: Mon Jul 14, 2014 12:44 am Post subject:

you're getting closer. Smile

Is that image out of focus on the top or is that your camera? Also, the test pattern looks tinted green. If the top is out of focus, check for dirt between the tubes and lenses. I may be mistaken, but the 1001 may have the cheap TAC lenses on them. You'd be better off spending $100 incl shipping for a set of HD6/HD144 lenses. The fan on the front tends to dump dirt and dust between the tubes and the lenses. Pull the whole lens frame assembly off, and you can see if they're dirty. You might also have fungus in the tube cooling fluid. Very common on those 1000 series Sonys. Post a pix of the tube faces with the lenses off.

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6319 Location: Australia

Yes if the blue switches are set wrong youll never get it to line up. The R and B CENT should be in their mid settings, it should all line up perfectly with the pots under the top cover. The CENT adjustments are the single point digital convergence basically the same as you see on most rear projection TVs that had single point convergence. Unlike the much older 1000, the 1001 has alot of digital adjustments where as the 1000 ( and the 1030,1031,1042 and whatever else they had didnt have any digital anything )

I have two of these, i tried HD-6 lenses on there instead of the TAC-4 lenses and it made no real difference. It made a big difference when i put the TAC-4s on my 9PG though, the HD-6 blew them away.

The 1001 is about the same as the 1044 but without the RGB input, so even with new tubes its not really sharp enough to need anything more than TAC-4s. I ran one of mine for many years at a near zero angle and with 3-5mm of unused phosphor on all three tubes, it still works perfectly well. Apart from being low resolution and having no RGB input, they are incredibly reliable sets and extremely easy to set up quickly. You can plonk it on the bench and have the convergence as good as it gets it about 10-15 minutes.