|
As this forum is rarely used anymore, we've locked it. Feel free to browse and read. Questions? Please reach out to us directly. Cheers! |
|
 |
|
|
| Author |
Message |
DisTreSs
Joined: 19 Nov 2007
Posts: 39
|
| Posted: Mon Nov 19, 2007 3:43 pm Post subject: BG808s SEOS |
|
|
Hi everyone,
I am a total noob when it comes to CRT but have always wanted one eversince the first day I started looking into HT. Since at the time CRT's were out of my (price)league, I had no other choice but to purpously avoid any and all contact with these things in order to protect my wallet 
As a result I spent the last 6 years making due with an XGA Panny LCD...
That is until 18/11/2007 and my 30th BDay!!!
I am now the proud owner of a nice BG808s with good tubes (xcept for green but the wear is slight and I can keep the 16:9 inside the worn area) but there's one catch:
This PJ used to be a Seos version and one of the previous owners -not the guy I bought it from myself- (I got into contact with him on a dutch forum) explained that he changed out some boards and an EEPROM to revert this PJ to an actual BG808s.
Besides this he claims that the tubes are of the sharper MEC variety...
Anyway, long story short, after taking the PJ home, I started to make a work of a quick setup in order to get some instant gratification and it worked great. Only problem was getting geometry correct on the left hand side of the image which in turn gave me some issues with regards to convergence.
The reason I had these issues is that when I wanted to change Left Bow and Left Keystone, I was unable to do so as I kept getting an I2C error at address 86H.
I got into contact with the guy that did the mods, but he tells me that Left bow and keystone adjustments were only ment for the Seos version. However, when I look in the standard BG808s manual, these controls are listed too....
What can I make of all this?
And can I make the necessary corrections without left bow? I suppose if so, this will make it a lot harder???
Anyway, thanks for any insights you may give on the matter.
From what I've seen so far, I'm in for a real treat provided I get out all the kinks... 
|
|
| Back to top |
|
 |
Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Mon Nov 19, 2007 3:50 pm Post subject: |
|
|
The tech has done what I do here as well, changes out the convergence tray. He's right, left pin and key were only found in rare 808 models, most convergence trays don't supply that.
I'd get a COG (convergence on green) board which will allow more precise geometry adjustments. They are hard to find, but I have one on eBay right now. If it doesn't sell, I won't relist it, as I now have a bunch of SEOS units here myself that will need those boards..
|
|
| Back to top |
|
|
DisTreSs
Joined: 19 Nov 2007
Posts: 39
|
| Posted: Mon Nov 19, 2007 5:12 pm Post subject: |
|
|
| Curt Palme wrote: | The tech has done what I do here as well, changes out the convergence tray. He's right, left pin and key were only found in rare 808 models, most convergence trays don't supply that.
I'd get a COG (convergence on green) board which will allow more precise geometry adjustments. They are hard to find, but I have one on eBay right now. If it doesn't sell, I won't relist it, as I now have a bunch of SEOS units here myself that will need those boards.. |
Hi Curt,
thx for the fast reply!
Figures you would be the first to chime in
As I have not yet opened the PJ up completely, I have not had a chance to check on any of the boards.
Is there any way to determine whether I have the COG board already without opening it up?
If this implies that for raster shifts only the green tube lights up, than this is already the case.
And while I have your attention  can I also ask if it is normal that corner and even side convergence is not that great on this PJ or is it that, being the noob I am, I have not yet mastered the art of setting it up correctly?
To be honest (and I know this should be the first step), I have not yet deleted all memory blocks out of fear that I would have nothing at all left worth watching if I'm unable to set it up from scratch myself
To give you some more info, the backend of the PJ is at 177" (sorry, I don't know your 'feet' measurements and I have not yet measured the distance counting from the lenses ) and I'm throwing a 98" wide picture right now.
The reason I'm probably going overkill on the screensize is that I will start construction on my first house in a couple of months (which will in turn take approx 1.5 years) and I want to keep the tube usage maximal in order to ensure that I don't run into wear-related issues after I have moved.
I know I still have quite a bit of reading to do and I will, but any tips&tricks from experienced CRTers like yourself that could help speed up the process sure would be great!
I mean, if a quick setup like the one I did can yield a halfway decent 1080p pic like it did, I can only imagine what's in store for me once I figure this thing out completely
Thx again!
|
|
| Back to top |
|
|
perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
|
| Posted: Mon Nov 19, 2007 7:52 pm Post subject: |
|
|
| Curt Palme wrote: | The tech has done what I do here as well, changes out the convergence tray. He's right, left pin and key were only found in rare 808 models, most convergence trays don't supply that.
I'd get a COG (convergence on green) board which will allow more precise geometry adjustments. They are hard to find, but I have one on eBay right now. If it doesn't sell, I won't relist it, as I now have a bunch of SEOS units here myself that will need those boards.. |
That's odd, I know for sure mine has it. Glad you responded as I would have assumed it's normal. Which models had that option, and why? Were they meant for some specific purpose, or was it just an option like leather or a sunroof?
|
|
| Back to top |
|
|
Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Mon Nov 19, 2007 8:34 pm Post subject: |
|
|
|
It was an option on all sets, even the Barco 800s. Out of the box without it, the geometry isn't perfect on Barcos, one side will always be slightly keyed or pin'ed. The COG board takes care of that. It's also mandatory for stacking or blending, for that extra control.
|
|
| Back to top |
|
|
Moose
Joined: 09 Mar 2006
Posts: 788
Location: Minnesota
|
| Posted: Mon Nov 19, 2007 9:27 pm Post subject: |
|
|
I've got a COG board but never installed it, largely because I don't know where it installs. So - how do I install a COG board?
_________________
In the real world, I am alan halvorson, King of the Wild Frontier and Swell Guy.
|
|
| Back to top |
|
|
Z-Photo
Joined: 07 Mar 2006
Posts: 2749
Location: Huntsville - Alabama
|
| Posted: Tue Nov 20, 2007 12:26 am Post subject: |
|
|
Interesting - I thought that this (left bow) was a software version issue....
_________________
Engineer by Day
Photographer by Night
My Portfolio
The Only GOOD AMPRO - is a Dead AMPRO.
wait - are they not all DEAD already?
|
|
| Back to top |
|
|
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Forum powered by phpBB © phpBB Group
|
|
