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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Mon Nov 17, 2008 3:45 am Post subject: RUNCO 991 Input Issues |
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I Recently bought a Runco 991 or XG75 (could be XG85 but still can't confirm) minus the remote.
I have got it set up and converged fairly well (as well as you can by manually aligning the lenses and using the limited convergence options in the NEC software package) Thats when I learned just how bad a 480p input looks on a screen that size!
Anyway, I purchased a factory made VGA - RGBHV cable. When I connect that up to my computer as an input (1024x768@60hz) it pops up on screen & looks pretty good, for about 5 seconds, then projector shuts off.
I'm guessing this is some sort of protection system that causes this to happen. Does anyone have any idea why
it would be doing this? I'm sure all my settings are well within the machines capabilities...
Anyone have any ideas?
Cheers!
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Matt
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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: Mon Nov 17, 2008 3:57 am Post subject: |
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What error code comes up on th eback of the set after it shuts off?
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Mon Nov 17, 2008 8:59 am Post subject: |
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F9 by the looks. I'd forgotten that there was even a screen on it, its stuck hard up against the wall so I had to use a little mirror to check it. I seem to remember reading somewhere else that it was focus?
In saying that I've had a really hard time trying to focus the blue, its really- I figured that was what people meant by defocus mode?
Cheers
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Matt
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Mon Nov 17, 2008 9:54 am Post subject: |
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If you have blue set to defocus you should still be able to get it to focus as tightly as the other color using the electronic focus controls.
All the defocus option does is defocus Blue by a defined amount.
Usage would be:
Defocus Blue set to OFF
focus blue using pot & electronic adjustments
set Defocus Blue to ON
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Mon Nov 17, 2008 11:02 am Post subject: |
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F9 is the Focus board, AKA the F drive. You can try reseating the cables to the F drive, but it does fail on occasion.
If it has the large neckboards, like in the XG disassembly pics in Curt's XG section, then it's either an 751 or 852. If it hasn smaller, single PCB neckboards then it's a 750.
It's hard to tell a 751 from an 852 by looking. The 852 will work with component input.
Out of curiosity, what lenses does it have? Standard HD-144s, or did they fit HD-8's? I think Runco fitted HD-8's to some XGs, not certain.
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Mon Nov 17, 2008 10:16 pm Post subject: |
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I'll check that out tonight and let you know.
The thing I found strange was that it only turns off like that when I use an RGB input, not on video or s-video.
is that at all strange?
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Matt
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Mon Nov 17, 2008 10:26 pm Post subject: |
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They seem to be the HD-144 lenses. I'm not really sure how to tell, but they're the same ones as in all the photos of the nec xg's on this site. but they have they're totally black as is the case of the projector itself. Cheers
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Matt
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Thu Nov 20, 2008 12:01 am Post subject: |
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Ok, so it seems that the f-drive board is screwed.
Blue wont focus properly at all & when I stick an input from my computer into it via RGBHV it cuts out. The error displayed on the computer screen (connected via serial to the NEC pc suite) says over current on f-drive.
The f-drive seems fairly basic but with a couple of large SKT amplifier modules on it. Is it likely that just replacing the STK's will sort this issue our or is it more likely to be something entierly more difficult?
Cheers!
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Matt
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Thu Nov 20, 2008 6:14 am Post subject: |
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It's typically the STKs.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Nov 21, 2008 12:11 am Post subject: |
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You originally posted you didnt get a remote with it. Are you useing the control software to run the projector or did you get a remote?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Nov 21, 2008 12:21 am Post subject: |
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I just re read your first post and I believe your saying your using the control software. I had a very similar experience with the control software as to when I attempted to adust the focus the projector would consistently shut down. I was also assuming it was a focus board issue but was not totally convinced. So I bought the proper remote for the projector and sure enough it has worked flawlessly ever since. Never had a shutdown since, and full focus control. And this projector has been through the ringer since using it for various testing. You may want to look for a remote first before diving in and replacing parts.
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Fri Nov 21, 2008 6:28 am Post subject: |
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You could be right, the software is definitely a bit crappy. But its shutting down when I connect an RGBHV input, not during focus. It shuts off irrelevant of if the computer is connected or not.
When it shuts down it gives the error F9. if the computer is connected it also gives F9 but it elaborate and says that it;s over current protecting on the f-drive or wave form board.
I figure that its probably safer for me to take a punt on some $10 STK's rather than spend $100 on a second had remote from e-bay. In saying that if the STK's do fix the issues that I'm having, then I'm going to desperately need the point convergence offered by the remote that I don't currently have access too.
Does anyone happen of have one of these remotes they would care to part with?
I've gone back to my little HP DLP projector for the time being. It almost makes as much noise as the NEC!
Cheers
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Matt
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Clarence
Joined: 08 Mar 2006
Posts: 3827
Location: Smith Mtn Lake, VA
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| Posted: Fri Nov 21, 2008 6:38 am Post subject: |
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| slinkylinks wrote: | | Does anyone happen of have one of these remotes they would care to part with? |
This one should work...
(check your PM)
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Fri Nov 21, 2008 6:59 am Post subject: |
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Fantastic! Does anyone know if the setup remote's cable is removable? I'm not too keen on paying to ship a 50' piece of wire from the states to New Zealand. I can make my own cable easy enough.
(Student money saving tips!)
Cheers
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Matt
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Nov 21, 2008 2:17 pm Post subject: |
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Make sure the STK's are original Sanyo's. Generic one's usually fail very quickly if not instantly.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Nov 21, 2008 2:19 pm Post subject: |
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| slinkylinks wrote: | You could be right, the software is definitely a bit crappy. But its shutting down when I connect an RGBHV input, not during focus. It shuts off irrelevant of if the computer is connected or not.
When it shuts down it gives the error F9. if the computer is connected it also gives F9 but it elaborate and says that it;s over current protecting on the f-drive or wave form board.
I figure that its probably safer for me to take a punt on some $10 STK's rather than spend $100 on a second had remote from e-bay. In saying that if the STK's do fix the issues that I'm having, then I'm going to desperately need the point convergence offered by the remote that I don't currently have access too.
Does anyone happen of have one of these remotes they would care to part with?
I've gone back to my little HP DLP projector for the time being. It almost makes as much noise as the NEC!
Cheers |
It may not be shutting down while adjusting focus but its giving you a focus error. Same thing.....
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slinkylinks
Joined: 01 Nov 2008
Posts: 33
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| Posted: Fri Nov 21, 2008 8:22 pm Post subject: |
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So does it take more grunt to focus a high res image?
I know how they work and everything but I can't see why it would make a difference what res it is running. It runs for hours with an s-vid input, but as soon as you change it to rbghv it cocks out.
Cheers,
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Matt
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Nov 21, 2008 8:54 pm Post subject: |
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Hey, I had a hard time swollowing that it was the software causing my problem also. I dont think that it really has anything to do with resolution or focus or anything with the projector itself. I think its just a glitch in the software.
But let me make this perfectly clear. I'm not saying thats what your problem is being caused by. It could very well be something else. But if it was a focus board issus, then why doesn't it shut down with S video also. That part is what doesnt make sense to point to the focus board.
All I'm saying is it could be the software. It definitely was for me. You wont know unless you get a remote and try it.
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Fri Nov 21, 2008 10:35 pm Post subject: |
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It could make sense.
The magnitude of the F-drive waveform will be different with a higher scanrate (more correction required), and if the default focus setting for the RGBHV input is way to high, it causes the shutdown.
We need Doug.
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Sat Nov 22, 2008 9:04 am Post subject: |
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| Mark_A_W wrote: |
We need Doug. |
Absolutely,
I really hope he's doing OK.
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