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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Thu Nov 24, 2016 3:41 am Post subject: |
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And I swapped in a different driver board that I can only assume is funtional still and had the same results. I imagine if the board I swapped in was not compatible or not good in general I would have other I2c errors. That is why I think I am to the output board. Any tips on testing the output board or fixing it?
Thanks!!
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Russ
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Thu Nov 24, 2016 4:03 am Post subject: |
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| pepsitheater wrote: | And I swapped in a different driver board that I can only assume is funtional still and had the same results. I imagine if the board I swapped in was not compatible or not good in general I would have other I2c errors. That is why I think I am to the output board. Any tips on testing the output board or fixing it?
Thanks!! |
The driver and Output boards are not the same. So what Output board is in the tray? Its the one that is at the back of the tray and plugs into the main board when you slide the tray in and it has all the yellow wires from the driver board plugged into it. If you are not sure take a picture and post it. You should also provide control Firmware and RWI versions. They are on the control board.
So either you have a faulty board or a mismatch of hardware and firmware or both the end result is the same in that not all the convergence controls work.
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Thu Nov 24, 2016 4:54 am Post subject: |
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Ok I will work on getting the pictures and details. The projector was working a few months a ago when I tested and hung it. So it has matched original hardware. One thing I noticed when I hung it a few months back was that the convergence didn't seem to start immediately. It was after a few minutes into the warm up cycle that you could see the picture snap into alignment. Unfortunately when I went to start it last Saturday that superficial snap never happened. It just stayed unconverged. It was then I made the stupid mistakes and have now replaced those three bad boards to be back to square one. I had a spare convergence driver so I tried swapping that but get the same result. Oh my tray has three boards. in the front is the driver in the back is the output and to one side is an adjustment board. All connected together by the yellow wires yes. The connectors are coded in green red and and purple if memory serves me. I wonder if I pull off the output board if I would notice anything.
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Russ
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Thu Nov 24, 2016 4:59 am Post subject: |
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| pepsitheater wrote: | | Ok I will work on getting the pictures and details. The projector was working a few months a ago when I tested and hung it. So it has matched original hardware. One thing I noticed when I hung it a few months back was that the convergence didn't seem to start immediately. It was after a few minutes into the warm up cycle that you could see the picture snap into alignment. Unfortunately when I went to start it last Saturday that superficial snap never happened. It just stayed unconverged. It was then I made the stupid mistakes and have now replaced those three bad boards to be back to square one. I had a spare convergence driver so I tried swapping that but get the same result. Oh my tray has three boards. in the front is the driver in the back is the output and to one side is an adjustment board. All connected together by the yellow wires yes. The connectors are coded in green red and and purple if memory serves me. I wonder if I pull off the output board if I would notice anything. |
Don't worry its all a learning experience. There wouldn't be one of us that hasn't done the same at one time or another. It does sound like a board problem though. That circumstance of a startup and snap in position after a few minutes sound like a part failure waiting to happen but lets check that all the right pieces are in place first.
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Sun Nov 27, 2016 7:26 pm Post subject: |
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Ok will post a pic of the board now. The convergence driver in this set of pictures is the spare I had. It didn't fix anything though. Both give me the same results as not having a board in at all. Except of Of course when the board is in I don't get any of the error messages.
Well maybe I won't post a pic can't seem to get my pics to post. 
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Russ
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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 28, 2016 3:02 pm Post subject: |
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So I'd say the output board is bad. Common issue now in these sets.
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Mon Nov 28, 2016 5:35 pm Post subject: |
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I may have found a guy here in St. Louis with extra parts but if not do you have this board for sale?
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Russ
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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 28, 2016 6:30 pm Post subject: |
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I do, let me know.
Thanks!
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Mon Nov 28, 2016 6:54 pm Post subject: |
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Ok great I will. Thanks again!
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Russ
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Tue Nov 29, 2016 12:40 am Post subject: |
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Well he didn't have this board in his parts bin but he had a couple 808 sets, one of them had this board in it. I didn't think 808s used this version of the board. Anyway he took it out so I could take home and test with it. Seems I have partial success. Some of my convergence ability has returned but not all. And there are a rainbow of squiggly lines at the top. Out of time for now, but later I will swap back in my original driver board and see if the results are the same. Since I was not sure of this spare board in the first place. He also sent me with his dynamic astmigtaion board to swap and see if that did anything. Since someone had this board in an 808...would the normal 808 output board work in a 1208 s2? If so then then i could try it and see is my partial success is because this output board is partially faulty. Does that make any sence?
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Russ
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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: Tue Nov 29, 2016 1:47 am Post subject: |
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If the 1208 board looks different, then you will have issues, but the fact that you have SOME convergence controls now is a good sign. Email me at curtpalme at shaw.ca if you need a board.
Do put back the original driver board. I don't think I've ever had an astig board fail, so no need to swap it, but if you can keep it as a spare, then great.
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Wed Nov 30, 2016 2:49 am Post subject: |
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Ok I put my original driver board back in and I am closer!! But still need help  .
Seems all my controls are back except:
I can't change horizontal size
I can't adjust the red fine convergence up and down
It's also possible I don't have control of top bottom focus. Never noticed much change.
Would this still possibly be an output board not fully functioning? Could it be the shift focus board? Could it be the driver board? I'm sooooo close.... Yet so stuck....
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Russ
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pepsitheater
Joined: 10 Jul 2007
Posts: 27
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| Posted: Thu Dec 01, 2016 3:52 am Post subject: |
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Tonight I made sure it wasn't the SMPS or the G2 board. Someone told me those might effect horizontal sizing. I verified them in a second machine and all worked as it should. I also swapped in replacements and had the same results.
So what board is most likely the culprit for no horizontal size adjustment no fine red convergence up and down and no coarse red vertical corner adjustment.
I'm betting the output board I got from him was partially faulty. Any chance it's anything else??
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Russ
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