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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Thu Aug 22, 2013 9:33 am Post subject: BG808 - Raster Shift on 16:9 a bad thing? |
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Finally got my 808 on a decent ceilingmount, ideal distance + square mounting.
But.... i mounted it a little close to the ceiling!
Current
2 Issues
1) I have to use all of my vertical raster shift.
2) I have to use quite a lof of Back porch to get the image on the bottom end of the raster. So much that i'm out of blanking range!
Should i raise my screen a bit to fix this issue? Will this improve the stability since i will have to use less electronic corrections?
ps: i found the image of the tubeface on the forums, i thank the orignal owner!
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Thu Aug 22, 2013 3:20 pm Post subject: |
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Read the manual for your set as it has the mounting specs for your set so it so its less stressful on the set
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crt king of black
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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Thu Aug 22, 2013 3:26 pm Post subject: |
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| the big E wrote: | | Read the manual for your set as it has the mounting specs for your set so it so its less stressful on the set |
I have read the manuals (I even have a copy of the service manuals) and they suggest a 100% vertical and horizontal centering.
Question is, does this really matter?
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Thu Aug 22, 2013 3:30 pm Post subject: |
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| fragzero wrote: | | the big E wrote: | | Read the manual for your set as it has the mounting specs for your set so it so its less stressful on the set |
I have read the manuals (I even have a copy of the service manuals) and they suggest a 100% vertical and horizontal centering.
Question is, does this really matter? |
Yes it does matter as its easier on the set plus if you set it up with a different environment there won't be any uneven tube wear
My marquee was set up bad at some point and now the green tube has a wear smack dab in the middle of the phosiper and it shows on the screen with a white screen(test screen) now I am getting replacement tubes soon because of it(not cheap)
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crt king of black
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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Thu Aug 22, 2013 3:32 pm Post subject: |
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Well should i ever move it i could mount it in the same position and use the same wear so that's not a real issue 
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Thu Aug 22, 2013 3:45 pm Post subject: |
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| fragzero wrote: | | Well should i ever move it i could mount it in the same position and use the same wear so that's not a real issue |
I would still center the raster to prevent from stressing the set
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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Thu Aug 22, 2013 5:06 pm Post subject: |
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| the big E wrote: |
I would still center the raster to prevent from stressing the set |
Okay my question isn't relevant anymore!
We had made an error mounting my screen, i swapped 2 bracket and gained nearly 10cm in height! Used the screws on my awesome projectormount (diy unistrut) to raise the projector 3cm.
Bam - raster 100% in the middle!
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Thu Aug 22, 2013 5:23 pm Post subject: |
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| fragzero wrote: | | the big E wrote: |
I would still center the raster to prevent from stressing the set |
Okay my question isn't relevant anymore!
We had made an error mounting my screen, i swapped 2 bracket and gained nearly 10cm in height! Used the screws on my awesome projectormount (diy unistrut) to raise the projector 3cm.
Bam - raster 100% in the middle! |
Glad to see you got it running smoothly
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Thu Aug 22, 2013 11:46 pm Post subject: |
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Take time with the mechanical setup to get it as close to "spec" as possible!!! Mate i've been on a super steep learning curve with my cine 7 over the past few months and i've found the better i start off the mechanical (as per manual) the better the picture.... after literally countless setups from scratch I've finally got it right!!!! Mechanical alignment must take preference over everything to your maximum allowable tolerances of placement!!!! Its worth it!! my cine 7 now would put many many projectors , direct view and anything else you want to compare to it to shame! I knew CRT was good, really good!!! I never thought they were this good 
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Aug 23, 2013 3:37 am Post subject: |
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I second what he said although my marquee could outdo the cine 7 but I ain't going there
Proper placement and correct tube toe in is best
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Fri Aug 23, 2013 4:18 am Post subject: |
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I know the 808 should kill my little 7 in fact my 8110 was patiently waiting for me to get fed up with the 7 and go 8" em but after seeing what I saw last night... Well I'm confident in saying it would crap all over many "higher spec" machines simply due to the setup!!! A cine 9 in the wrong hands can look crap if you know what I mean.... Just as a low spec that's had it's controls caressed in the right ways is simply amazing!!!! It's seriously taken months and probably hundreds of hours of tweaking to know what I now know and my persistence payed off... No one is allowed within a 1m radius of the machine now LOL
Stick with it
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Aug 23, 2013 6:01 am Post subject: |
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| mx83toy wrote: | I know the 808 should kill my little 7 in fact my 8110 was patiently waiting for me to get fed up with the 7 and go 8" em but after seeing what I saw last night... Well I'm confident in saying it would crap all over many "higher spec" machines simply due to the setup!!! A cine 9 in the wrong hands can look crap if you know what I mean.... Just as a low spec that's had it's controls caressed in the right ways is simply amazing!!!! It's seriously taken months and probably hundreds of hours of tweaking to know what I now know and my persistence payed off... No one is allowed within a 1m radius of the machine now LOL
Stick with it |
I can give some help to get that 8110 looking so great you wouldn't believe it(i have screen shots to prove it just drop me a pm) I just got mine fully and properly dialed in just right and man is it amazing(I didn't use a colorimeter either)
I also have a nec 10PG that is a 9inch LC optics set I am dying to get to use it(needs a working gain board and near mint tubes) my first crt was a electrohome ecp4101(no Acon though)and my marquee and nec are close in picture its hard to chose(only downside to the nec is it whighs a ton(well seems like it))
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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Fri Aug 23, 2013 6:45 am Post subject: |
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I assumed i had to drill new holes to reposition my screen but seems it was not needed.
Currently i have my image area and raster dead center on my tubes! 5mm from the edges
Things i have left to do
Optimize Optical focus
Optimize Scheimfplug
Optimize Focus coil
Optimize Electrical focus
Astig setup
Dynamic Astig
Greyscale (lumagen HDP)
CMS (lumagen HDP)
I'm not done here yet... Also found a professional installer which is very resonable in price, trying to make an appointement with him.
After making the adjustements my housemates came to have a look, convergence still isn't 100% (since not every color has the same focus you can see spillover in the edges) they laughed at the bad convergence. Than i showed the intro of the game i was playing, suddenly everyone was quite
1080i60 / 1080i72 will become my preffered resolutions i think!
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Fri Aug 23, 2013 9:08 am Post subject: |
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Astig and alignment first... Test astig by ramping the electronic focus up n down if it all stays still your in business if it moves don't stop adjusting it will bite you in da butt later
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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Fri Aug 23, 2013 9:11 am Post subject: |
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| mx83toy wrote: | | Astig and alignment first... Test astig by ramping the electronic focus up n down if it all stays still your in business if it moves don't stop adjusting it will bite you in da butt later |
Well i started by doing the mechanical setup + mechanical gun aim, everything is screwed tight now, it's not going anywhere!
Now i can start fiddeling with the components surrounded by highvoltage
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Aug 23, 2013 10:31 am Post subject: |
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| fragzero wrote: | | mx83toy wrote: | | Astig and alignment first... Test astig by ramping the electronic focus up n down if it all stays still your in business if it moves don't stop adjusting it will bite you in da butt later |
Well i started by doing the mechanical setup + mechanical gun aim, everything is screwed tight now, it's not going anywhere!
Now i can start fiddeling with the components surrounded by highvoltage |
Before you mess with the focus coil make sure the electronic focus HASN'T been messed with screw around with that without making sure the electronic focus adjustment is cenetered will make things worse
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Fri Aug 23, 2013 11:18 am Post subject: |
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| mx83toy wrote: | | my cine 7 now would put many many projectors , direct view and anything else you want to compare to it to shame! : |
This is a bold statement  do you want to put it up against my Cine 9? 
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Aug 23, 2013 2:00 pm Post subject: |
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I agree with case do you want put it up against my marquee 8110+ or my nec 10pg both would blow it away
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fragzero
Joined: 30 Aug 2012
Posts: 344
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| Posted: Fri Aug 23, 2013 2:05 pm Post subject: |
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Poor Poor Cine 7
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Aug 23, 2013 2:36 pm Post subject: |
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| fragzero wrote: | | Poor Poor Cine 7 |
Lol 
I have sets in all three tube sizes so I know the difference a 7inch set may be a great starter set but the 8and 9 inch sets would put them to shame after they are dialed in properly
My sets
Electrohome Ecp 4101(no Acon) 7inch Sony sd187 or 07ms tubes 600-725 lumens
Electrohome marque 8110+(ultra ready)8inch Panasonic tubes 1200 lumens
Nec 10pg 9inch LC optics tubes 1000+ lumens 40,000:1 contrast ratio
I still use my Ecp some but my marquee is seeing the most use now
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