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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Tue Jul 21, 2009 5:54 pm Post subject: Signal Entry quesion |
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Hello All,
I am setting up the NEC 601 imager / NEC 6 PG +. Mounted, toed in and ready for the next step. For the initial setup I am going to use my laptop, Keep in mind it is not a high performace laptop and doesn't have a great graphics card. However am going to use it as the initial. The question has to do with Video / RGB signal entry?? I am not sure of which to use, this is still new to me so I want to figure this out to expand my knowledge. If some one would be so kind to explain the both as the manual is really not designed for the newbies!
Thanks
Mike
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Tue Jul 21, 2009 6:00 pm Post subject: |
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To use your laptop you'll need a VGA (or DVI-A/DVI-I) to BNC breakout cable. You will be using RGB input.
_________________
Dave
A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Tue Jul 21, 2009 7:02 pm Post subject: |
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Thanks Dave.....
Should I be setting everything up for RGB? PS3, DVD, etc....
Whats the difference for the Video and RGB signals?? When would someone use a Video entry??
Mike
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dropzone7
Joined: 12 Jun 2007
Posts: 1069
Location: Charlotte, NC
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| Posted: Tue Jul 21, 2009 7:16 pm Post subject: |
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| mikeryan wrote: | Thanks Dave.....
Should I be setting everything up for RGB? PS3, DVD, etc....
Whats the difference for the Video and RGB signals?? When would someone use a Video entry??
Mike |
All of your sources will be set up for RGB. The only time you would want to use Video is if you are trying to run composite video or S-video sources into the projector, or if you have system board or source lock problems and have to revert to a Video frequency block to recover things and troubleshoot.
_________________
"Coffee is for Closers."
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Tue Jul 21, 2009 7:33 pm Post subject: |
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| mikeryan wrote: | When would someone use a Video entry??
Mike |
Never.
And in fact, many, if not most NEC's didn't even ship with a video decoder board installed.
As others have stated, plain video is only used as a baseline diagnostic/setup tool. These are data grade projectors, using plain video with them would look terrible, you need a minimum of a line doubled or progressive signal, ideally something a bit higher like 1080i HD looks best.
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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Wed Jul 22, 2009 5:38 pm Post subject: |
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Well I hooked up the laptop and set the resolution to as low as I could go. I think it was about 800x600 , the other option I have for resolution is 1024x768 the refresh rate is 60hz; I can't change that. I tried to hook it up last night and found the when the laptop was hooked up to the projector the screen went a little crazy and I couldn't set a up a signal. Any thoughts? I guess I will have to try the DVD next.
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Jul 22, 2009 5:48 pm Post subject: |
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1024x768 at 60Hz refresh should easily be accepted by the projector, use that if its more convenient for you.
When you say the "screen went a little crazy", do you mean the projector's display or your laptop's display ?
If your projector went crazy, you could have a bad system board, suffering from what is commonly referred to as "scrambled mess"...Try it again with the 1024x768 resolution this time, hook it up and then push the 1 on the remote to choose the RGB input.
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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Wed Jul 22, 2009 6:03 pm Post subject: |
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Sorry the projector display started to go wavey and cycle and then turned off. I wonder what system board could be messed up? I have hooked the laptop before and have not had this problem. but that was over a year ago and I have only just hooked the PJ(mounted) It has gone througha move so maybe a board is loose. If I could narrow down which board I can re seat it......
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Jul 22, 2009 6:27 pm Post subject: |
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| mikeryan wrote: | | Sorry the projector display started to go wavey and cycle and then turned off. I wonder what system board could be messed up? I have hooked the laptop before and have not had this problem. but that was over a year ago and I have only just hooked the PJ(mounted) It has gone througha move so maybe a board is loose. If I could narrow down which board I can re seat it...... |
There is a board in the NEC's which is called the "System Board" it is not just a generic term. It is located in the rear card cage you see when you open the projector up. System Board is silkscreened directly onto the board itself.
Also, it is believed that the "scrambled mess" problem which wrecks the system boards in NEC projectors is caused by voltage on the wrong prong of the power connector. If you've moved since last using your projector, your new residences wiring may have voltage leaking onto the wrong wire. I don't know the exact particulars for testing for that, but I'm sure you can find it with a search...
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jul 22, 2009 7:00 pm Post subject: |
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Question
1: What output port on your laptop are you using?
2: Are you sure your setting that port to the suggested resolution or are you setting your laptop screen to that resolution?
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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Wed Jul 22, 2009 7:12 pm Post subject: |
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macgyver,
1) I am using the optional screen port with a 5BNC cable direct from the pj to the laptop
2) not too sure I have only 2 resolution option on the laptop thats the 1024x768 and the lesser
i have a hd fury should i be using his?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jul 22, 2009 7:25 pm Post subject: |
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| mikeryan wrote: | macgyver,
1) I am using the optional screen port with a 5BNC cable direct from the pj to the laptop
2) not too sure I have only 2 resolution option on the laptop thats the 1024x768 and the lesser
i have a hd fury should i be using his? |
You do not need the Fury on a VGA port. Is this what your optional screen port is?
When you go into your screen settings on the laptop it should show 2 monitors. Are you seeing this?
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dropzone7
Joined: 12 Jun 2007
Posts: 1069
Location: Charlotte, NC
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| Posted: Wed Jul 22, 2009 8:57 pm Post subject: |
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Regarding the boards, they are all pretty much together and it shouldn't take more than 5 minutes to remove the cage cover and reseat every board in there. You could have one loose in there so it's worth a shot. If you do have a "system board" problem then I feel for you. I had this issue a while back and had to replace the board entirely. I would reseat the boards and try a known working source to confirm it's not a problem with the projector. I hate computers for sources personally, especially for troubleshooting.
_________________
"Coffee is for Closers."
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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Thu Jul 23, 2009 4:41 pm Post subject: |
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Thanks All, I will try the reccomendations this weekend. I don't think its a board problem because when I un hook the computer the screen goes back to normal. It seems to be the computer..... I hope! I will try the DVD player this weekend and see what happens. It was fun putting it up but no its just getting frustrating. I supose thats the fun with these things.
Thanks
Mike
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rickp
Joined: 29 Oct 2008
Posts: 25
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| Posted: Fri Jul 24, 2009 12:53 pm Post subject: |
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I had the same problem recently when I hooked up mine for the first time. If you swap the H and V cables I believe you will have a Bingo! Thank Curt Palme for that solution.
I was just on your side of the pond at the Goodwood festival of speed, very cool!
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mikeryan
Joined: 12 Nov 2008
Posts: 47
Location: Surrey
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| Posted: Tue Jul 28, 2009 9:56 pm Post subject: |
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Ok so I finally found some time to hook up the DVD player and save a signal entry. So far I have it saved for the first time around. The only thing is I am finding that the edge focus is way out to lunch. And on the fine and coarse cross hairs the edges for the R and B don't ecatly macht up very well. The center is pretty good but thats it. Oh and this time I couldn't get a picture out of the DVD??? only the PJ screens would come up. Its frustrating and hope I can get this up and running soon. Any advices for this first timer would be appreciated.
Thanks
Mike
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