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Post by tschaeikaei on Oct 23, 2016 8:53:30 GMT -5
Hey mates, i've got a problem with one of my Ultras. Trying do setup it, but the convergence grid does not react as i'm used to. Problem is present on all three tubes. Picture shows green convergence on H and V stretched to the max. I'd like to see the maximal bend in the center of the rectangle and not shifted to the right and up. I've tried the following: - Rotate the (green) convergence coil, makes the complete raster move and warp but no improvement on where the horizontal and vertical bends occur. (Since i had to find out myself as some people seem to make big secrets out of this, i'll describe the process completely). - Tried the convergence timings menu (Band 3 in my case) , this enables me to shift the horizontal bend to the center, but not the vertical. Go to the "normal" service menu, UTIL 9 0901 Press 0, then 1596325 as password (manufacturer menu) There's an additional hidden menu, --> press 9 You can't use the enter key in these menus, but the number keys. Don't change any settings if you don't know what it does and if not necessary.Well, none of these settings helped me to shift the bend into the center of the rectangle. Thinking about having a bad convergence board or even a bad control board... Regards, Julian     |
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Post by tschaeikaei on Oct 23, 2016 12:52:46 GMT -5
No, actually nothing solved by bending that pin straight again.
I've done the following: - Swapped CLM, swapped HDM
No change at all. Going to try swapping the FGM, but I'm not sure if this could help.
What I also discovered is that the "H fail" LED is on for one or 2 seconds during startup.
HV crackling occures twice when starting. After that, the projector shows a normal picture and the H Fail LED is off again.
I can't remember if it is normal for the LED to come bright for that short time. Maybe it is.
Can someone confirm?
Thanks, Julian
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Post by mastertech on Oct 24, 2016 22:45:18 GMT -5
When you swapped the CLM did it have a different DPB or did you use the same one on it?
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Post by barclay66 on Oct 25, 2016 2:34:39 GMT -5
Hi,
I will check tonight. What I can already say, is that the HV should only start up once. There may be a problem and/or error condition that forces the HV to shut down at first start up. Maybe some kind of slow settling of a supply voltage. You could try to swap the LVPS in order to rule out related problems. Maybe the HVPS too...
Regards,
barclay66
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Post by tschaeikaei on Oct 25, 2016 14:54:15 GMT -5
Well, I've swapped the CLM including the daughter board. And I've tried the same thing on the other projector (swapped the CLM back before trying).
Swapping the power supplies in a moment.
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Post by barclay66 on Oct 25, 2016 15:21:45 GMT -5
Uh, text was gone. Here's again:
Hi,
I just verified with my two machines:
- At startup, no error lights should stay on for more than a quick flash
- HV should switch on and crackle only once
You should investigate this H-Fail condition. It can be caused by several conditions, including supply rails (see picture)...
Regards,
barclay66 |
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Post by tschaeikaei on Oct 26, 2016 8:40:34 GMT -5
Well, for summarison.
- Initial problem (convergence, 1st post) occurs on both projectors exactly the same way.
- HV crackling twice occurs only on pj2.
- HV crackling on pj2 back to once / normal after swapping the HDM
- H fail (at startup, before showing a picture) shows always on pj2 only.
Even after swapping the HDM, back heatsink incl. conv/astig/vert. boards, LVPS and HVPS, the H fail Led is on for about 1 to 2 seconds.
I've got to admit that i had done the following: there was one of those multi- transistor- to- heatsink- clips
on the convergence board that i accidentally forgot to clip on all the way. So some of the To220 packages had an electrical connection
to heatsink (=ground) when turning the pj on.
The LVPS lit the -24V fail LED (not blinking) when trying to turn on the pj.
No HV in that case. After refitting that metal clip, everything worked fine again.
No -24V fail LED, HV came up again and i got a picture.
Convergence issues were the same (before and after the clip- thing)
so i don't think it has anything to do with this.
Even swapping to the other BS heatsink with the 3 boards doesn't change this.
So the following appears to be true: I could go on swapping parts, CLM, VIM, FGM, tubes, mainboard, neckboards.
I don't think any of these make sense, except the tubes (maybe there's a faulty h-deflection coil).
And there's something else that seems strange to me:
The 1st projector is the one with the mixed tubes set. (R&B P19 G PT22-19). Picture is sharp at 50% focus.
The 2nd projector has the "original" tubeset, (R&B P19-LCP09, G PT-22-19), that one is sharp at about 25% focus.
Talking about master focus (PIC4).
Both projectors are fully reset (complete initialisation, "reset everything"), so every zone focus adjustment is at 50% on both.
Swapping the FGM and CLM doesn't do anything at all.
Regards, Julian
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Post by tschaeikaei on Oct 26, 2016 8:46:01 GMT -5
What I mean by the above is that when the clip (conv. board to heatsink) wasn't in place, I've turned the pj on with bth LVPSs I have. So it could be that the h fail is caused by a bad LVPS, which is in this case both of mine. Otherwise, the other pj (1) runs quiet normal, with both LVPSs. No h fail LED, crackling only once. Seems strange to me. Apart from the 50/25% focus issue and the convergence thing (first post), both projectors run normal. In every module combination i've tried so far. The only real clue is one of the HDMs, i will try the twice crackling HDM in pj1 and see what happens. Oh and thank you for your help so far, barclay  Maybe you could try my initial problem, too. Maxing out convergence (on any tube you want) and maybe attach a picture of it. |
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Post by barclay66 on Oct 26, 2016 9:10:59 GMT -5
Just a quick question: What software versions do You have?
Please check U16, U35 and U100 on the CLM and check U7 on the DPB.
I will try out the convergence issue later this evening...
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Post by tschaeikaei on Oct 26, 2016 9:56:25 GMT -5
Well, main software is 4.4 on both. Every other sw should also be the same on both, going to find out in a minute.
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Post by tschaeikaei on Oct 26, 2016 11:13:12 GMT -5
Stickers on PJ2 chips:
CLM mainboard: U16 V3.1, U35 V4.4, U100 Rev.3.4
DPB: U7 V5.5 / D5.5 (is there a difference between D and V?)
U28 Rev. 30, U16 V3.1, U19 1.4, U44 1.0 DPB:U1 Rev. 1.0 U15 Rev.14, U11 Rev.1.2, U33 Rev.11, U7 V5.5
OSD says U35 V4.4 U16 I3.1 U7 (DPB) D5.5 with both CLMs (swapped the whole modules with daughter boards)
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nashou
Unmoderated Off Topic
Tech in Training.....
Posts: 1,239 
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Post by nashou on Oct 26, 2016 16:43:19 GMT -5
Well, for summarison. - Initial problem (convergence, 1st post) occurs on both projectors exactly the same way. - HV crackling twice occurs only on pj2. - HV crackling on pj2 back to once / normal after swapping the HDM - H fail (at startup, before showing a picture) shows always on pj2 only. Even after swapping the HDM, back heatsink incl. conv/astig/vert. boards, LVPS and HVPS, the H fail Led is on for about 1 to 2 seconds. I've got to admit that i had done the following: there was one of those multi- transistor- to- heatsink- clips
on the convergence board that i accidentally forgot to clip on all the way. So some of the To220 packages had an electrical connection
to heatsink (=ground) when turning the pj on.
The LVPS lit the -24V fail LED (not blinking) when trying to turn on the pj.
No HV in that case. After refitting that metal clip, everything worked fine again. No -24V fail LED, HV came up again and i got a picture. Convergence issues were the same (before and after the clip- thing) so i don't think it has anything to do with this. Even swapping to the other BS heatsink with the 3 boards doesn't change this. So the following appears to be true: I could go on swapping parts, CLM, VIM, FGM, tubes, mainboard, neckboards. I don't think any of these make sense, except the tubes (maybe there's a faulty h-deflection coil). And there's something else that seems strange to me: The 1st projector is the one with the mixed tubes set. (R&B P19 G PT22-19). Picture is sharp at 50% focus. The 2nd projector has the "original" tubeset, (R&B P19-LCP09, G PT-22-19), that one is sharp at about 25% focus. Talking about master focus (PIC4). Both projectors are fully reset (complete initialisation, "reset everything"), so every zone focus adjustment is at 50% on both. Swapping the FGM and CLM doesn't do anything at all. Regards, Julian Even tho convergence issues were the same before and after. I would check those transistors to make sure they didn't short out. they are not meant to go to ground. Athanasios |
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Post by Casethecorvetteman on Oct 27, 2016 2:17:27 GMT -5
The 25% focus thing is probably due to the age or more so the number of hours on the tubes. Ive got some P19LUGs here with 23,500hrs on them, the focus yokes need to be all the way forward, and even then the midpoint focus number is about 40, where a lowish hour tube has the focus yoke moved to about the mid point of it's movement range to hit the 57 focus i aim for.
This could explain that focus number variation.
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Post by barclay66 on Oct 27, 2016 2:40:09 GMT -5
Hi,
I have verified the convergence issue with my machines. The vertical displacement seems to be normal. What can be observed, is that the displacement becomes more prominent the more You move the adjustment box to the upper/lower edges of the grid. It isn't adjustable like the horizontal displacement. It looks like the gain for the vertical convergence amplifier is just a bit too large. See the pictures that I took for reference...
BUT: The effect only becomes noticeable when maxing out the settings which normally isn't necessary anyway. If You had to so, the overall mechanical setup and the basic geometry settings should be optimized first.
BUT BUT: In a blend or stacking scenario it is possible that You will need much more convergence range in order to align the grid between both projectors. If the effect really should make a uniform grid impossible, You should try to reduce the distance between both projectors to a minimum and have them perfectly aligned to the screen using their green tubes as a reference. The angle between each green tube and the mid-point of the screen should be equal (only reversed).
BUT BUT BUT: What if the displacement effect is the same on the red and the blue tube? Then You still should be able to get them converged. Maybe You could try this too.
Regards, barclay66 |
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Post by barclay66 on Oct 27, 2016 2:45:02 GMT -5
Just another pic for explanation below.
The machine where this was taken has the following software versions:
CLM mainboard: U16 V3.1, U35 V5.0, U100 3.4
DPB: U7 V5.6
On the weekend I will try if the displacement effect depends on the software version as I can see that it is much less noticeable on my machine than Yours. It could be possible that it changes with the version of either U35, U7 or both...
Regards, barclay66
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