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vidikron1984
Joined: 19 May 2010
Posts: 20
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| Posted: Sun Oct 02, 2011 2:47 am Post subject: can not get 1080i working on my Vidikron VPF50HD (ECP 4500) |
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can not get 1080i working on my Vidikron VPF50HD (ECP 4500)
it shows multiple images if I do... like several of the same images stacked, as in 2, 3 or 4 matching images on the same screen
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Vidikron VPF50HD
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sun Oct 02, 2011 2:56 am Post subject: |
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How are you getting the HD signal to the projector? What hardware are you using from the source to the projector? Are the sync settings on the set on 'auto'?
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vidikron1984
Joined: 19 May 2010
Posts: 20
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| Posted: Sun Oct 02, 2011 3:31 am Post subject: |
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I am linked to a computer VGA out to 5 plug bnc... also the PC is HDCP compliant and does go into HD
sync settings to auto?
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Vidikron VPF50HD
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sun Oct 02, 2011 3:46 am Post subject: |
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The H and V sync buttons on teh back of the keypad should be set to auto.
Get a BNC T connector and combine the H and V cables and plug them into the H input. I'm sure that will do it.
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vidikron1984
Joined: 19 May 2010
Posts: 20
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| Posted: Sun Oct 02, 2011 5:47 am Post subject: |
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I will try that... never heard of it... I will let you know how it turns out
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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Mon Oct 24, 2011 12:50 am Post subject: |
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Just curious -- did the T fix it?
I have same machine and run 1080i from an OPPO BRP-83 into HDF3 and then via 50ft nice RGBHV (with T) to the PJ without trouble (excepting a damn H-sync losses auto lock problem if machine cold). I think I hooked up the T right away as everyone had said to do so, so can't recall if I ever saw what it did if I didn't... 
HDCP compliant 1080i RGBHV out of a HTPC? I didn't think they could do that directly via analog output -- looks like I'd better head over to the HTPC forum.
Cheers,
Matt, in Pittsburgh
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vidikron1984
Joined: 19 May 2010
Posts: 20
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| Posted: Sun Nov 06, 2011 1:34 am Post subject: |
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tried the T thing...
I must have the settings wrong...
ideas?
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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Sun Nov 06, 2011 2:18 am Post subject: |
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You might make sure the H and V sync are set to auto on the PJ -- OR, manually set those values to the correct settings to check your auto sync -- it may not be functioning. From experience, my auto-sync sometimes goes out when the machine has not warmed up -- but if I manually adjust the values to near the correct values, it snaps into sync and all is well. The remote calls these HOLD as I recall...2nd row from the top in the middle.
Anyway, for 1080i the h sync should be 33.75kHz and vert sync (refresh rate) is 60hz. Might try that. When I shoot from my PC I just have it match my cabinet's touch screen monitor, it runs 1024x768 at 60khz and 75hz. Until I got digital cable (OTAs, basically) last week, I had only SD via my pc and didn't care...soon I sorta' will.
Incidentally, my understanding is the math works about like this:
Vert scan rate = horizontal scan rate / (#scan lines * 1.05)
where the 1.05 accounts for the beam flyback, etc.
So...
V = 33,750 horizontal / 540 * 1.05 = 59.52. I am sure there is a fascinating historical perspective on the nuances and specs to make this 59.94 or whatever it is. Note I used 540 as it is an interlaced signal.
Sorry, I have yet to educate myself on porch settings, polarity, and all that...it all works via my HD Fury III, that's all I know.
cheers,
Matt
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vidikron1984
Joined: 19 May 2010
Posts: 20
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| Posted: Sun Nov 06, 2011 3:42 pm Post subject: |
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well no joy so far... 
however I did get it to lock at 1080p by mistake... not sure how that happened...
man it was blurry 
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