Return to the CurtPalme.com main site CurtPalme.com Home Theater Forum
A forum with a sense of fun and community for Home Theater enthusiasts!
Products for Sale ] [ FAQ: Hooking it all up ] [ CRT Primer/FAQ ] [ Best/Worst CRT Projectors List ] [ Setup Tips & Manuals ] [ Advanced Procedures ] [ Newsletter ]
 

Blu-ray disc release list and must-have titles. Buy the latest and best Blu-ray titles to show off in your home theater!

 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! 

Barco Graphics 808
Goto page Previous  1, 2, 3, 4, 5  Next
 
This forum is locked: you cannot post, reply to, or edit topics.   This topic is locked: you cannot edit posts or make replies.    CurtPalme.com Forum Index -> CRT Projectors
Author Message
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Sun Aug 14, 2011 4:42 am    Post subject:

Here is my newest version. I'm so glad the aluminum box arrived today! Took 3 weeks since it came from HK Smile I've tested it too and it works. I love the new look!



inverter3.jpg
 Description:
 Filesize:  399.43 KB
 Viewed:  11495 Time(s)

inverter3.jpg



inverter2.jpg
 Description:
 Filesize:  468.84 KB
 Viewed:  11495 Time(s)

inverter2.jpg



inverter1.jpg
 Description:
 Filesize:  444.47 KB
 Viewed:  11495 Time(s)

inverter1.jpg


Back to top
Tom.W



Joined: 09 Mar 2006
Posts: 6635


Posted: Sun Aug 14, 2011 7:24 am    Post subject:

As you can see there are six independent sync inverters available on a single 74LS04 chip.

http://www.alldatasheet.com/datasheet-pdf/pdf/27365/TI/74LS04.html
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Sun Aug 14, 2011 3:21 pm    Post subject:

Tom.W wrote:
As you can see there are six independent sync inverters available on a single 74LS04 chip.

http://www.alldatasheet.com/datasheet-pdf/pdf/27365/TI/74LS04.html


Yup, I used 1,2 and 3,4 Smile

Check out my video while I was building it. Smile

http://www.youtube.com/watch?v=6WdxnOQC4hM
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Sun Aug 14, 2011 8:09 pm    Post subject:

Ok, folks. I need help regarding mechanical convergence. I read the manual and it mentions about washers. I removed the lenses but I didn't see any washers. Please see attached pictures of what I saw. I noticed there were long vertical screws that can be rotated. I'm also thinking that the part where the lenses are mounted to can be moved by loosening the screws on top. However, nothing about these longs screws were mentioned in the pdf manual. How should I proceed with my mechanical convergence?

Oh, I'm optimizing it for 3.2m screen width and up.

Thanks!



barco3.jpg
 Description:
 Filesize:  395.8 KB
 Viewed:  11436 Time(s)

barco3.jpg



barco2.jpg
 Description:
 Filesize:  405.97 KB
 Viewed:  11436 Time(s)

barco2.jpg



barco1.jpg
 Description:
 Filesize:  376.58 KB
 Viewed:  11436 Time(s)

barco1.jpg


Back to top
Tom.W



Joined: 09 Mar 2006
Posts: 6635


Posted: Sun Aug 14, 2011 9:03 pm    Post subject:

Those long screw adjusters on the front as you call them are the Scheimflug adjusters. Read this again...

http://moesrealm.com/home-theater/guides/crt-projector-focus-mechanical-aim-basics/

They adjust the plane of focus. No washers required as with a fixed mount lenses. Yours are adjustable.
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Sun Aug 14, 2011 9:52 pm    Post subject:

Tom.W wrote:
Those long screw adjusters on the front as you call them are the Scheimflug adjusters. Read this again...

http://moesrealm.com/home-theater/guides/crt-projector-focus-mechanical-aim-basics/

They adjust the plane of focus. No washers required as with a fixed mount lenses. Yours are adjustable.


Ok. What I was trying to do is adjust the lenses since I put the barco 13ft from screen. On my Sony 1272, I put spring on outer lenses which allowed me to twist the screw as it tightens and lens moves slowly from left to right/vice versa.

So with our Barco and reading the link you sent, we don't have to remove the lens to do the mechanical aim? Looks like it's the tube that needs to be moved.
Back to top
zGman



Joined: 22 May 2006
Posts: 599


Posted: Sun Aug 14, 2011 10:01 pm    Post subject:

The toe-in is adjusted after the bolts are loose on the top panel.
there must be a set-up guide here somewhere, or - try the guided
setup in the menu...
G
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Sun Aug 14, 2011 10:03 pm    Post subject:

zGman wrote:
The toe-in is adjusted after the bolts are loose on the top panel.
there must be a set-up guide here somewhere, or - try the guided
setup in the menu...
G


I'm sorry but which part is the toe-in? I'm assuming it's the gray plastic square?
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Sun Aug 14, 2011 10:45 pm    Post subject:

I displayed a pattern so I can see what parts of the raster is being used. It looks like the previous owner set it up properly.

I think I should mention this: when I was converging red to green electronically, I reached the max and it red crosshair was still far from green crosshair. This is the reason I want to mechanically adjust the lens similar to what I did with my Sony 1272. Also, the steps that I was doing for my 1272 could be making me confuse.

Sony steps
1. reset counters all to factory
2. display cross hair in the middle(assuming projector is centered to the screen)
3. adjust the screws on blue lens so blue crosshair is very close to green crosshair
4. adjust the screws on red lens so red crosshair is very close to green crosshair
5. adjust red electronically so it converges green
6. adjust blue electronically so it converges green
7. etc, save

I was thinking that Barco might be different. In my 1272, I didn't move the tubes.



barcocircle.jpg
 Description:
 Filesize:  419.63 KB
 Viewed:  11388 Time(s)

barcocircle.jpg



tubes.jpg
 Description:
 Filesize:  382.86 KB
 Viewed:  11394 Time(s)

tubes.jpg


Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Mon Aug 15, 2011 1:45 am    Post subject:

Finally, I figured it out. It's the red and blue tubes that we need to swing. I returned the lenses so I can start converging. However, I would like to reset everything back to factory default before I manually aim it. Where is it in the menu?


nudebarco.jpg
 Description:
 Filesize:  368.29 KB
 Viewed:  11370 Time(s)

nudebarco.jpg


Back to top
Elaine Benes



Joined: 25 Apr 2006
Posts: 1416


Posted: Mon Aug 15, 2011 2:07 am    Post subject:

You need to re-install the top piece above the tubes to actually fix the red and blue tubes to the proper "toe in" position...
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Mon Aug 15, 2011 2:13 am    Post subject:

Elaine Benes wrote:
You need to re-install the top piece above the tubes to actually fix the red and blue tubes to the proper "toe in" position...


Will do. Thanks!
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Mon Aug 15, 2011 6:46 am    Post subject:

Thanks everyone for all the help!!! It's watchable now. The only thing I need to do is remove the existing crt projector, then install the Barco. Smile


kungfupanda4.jpg
 Description:
 Filesize:  291.84 KB
 Viewed:  11349 Time(s)

kungfupanda4.jpg



kungfupanda3.jpg
 Description:
 Filesize:  354.88 KB
 Viewed:  11349 Time(s)

kungfupanda3.jpg



kungfupanda2.jpg
 Description:
 Filesize:  351.35 KB
 Viewed:  11349 Time(s)

kungfupanda2.jpg



kungfupanda1.jpg
 Description:
 Filesize:  284.63 KB
 Viewed:  11349 Time(s)

kungfupanda1.jpg


Back to top
ChrisWiggles
Opinionated SOB


Joined: 12 Mar 2006
Posts: 2529
Location: Seattle

Posted: Mon Aug 15, 2011 7:32 pm    Post subject:

v1rtu0s1ty wrote:
Finally, I figured it out. It's the red and blue tubes that we need to swing. I returned the lenses so I can start converging. However, I would like to reset everything back to factory default before I manually aim it. Where is it in the menu?


The Barco convergence you can just center everything out because it gives you the adjustment ranges. I don't even remember if there is the equivalent of a factory reset on an 808? It's been a while.

But you need to physically swing the tubes as I think you've figured out.

Then you use the long screws poking out the front for lens flapping during optical focus (NOT centering the guns for the particular throw distance).

All of this is covered pretty well in the G808 install manual:
http://www.curtpalme.com/Barco808_Downloads.shtm

Look particularly starting on page 59 and on from there. You should read the whole thing though.
Back to top
Tom.W



Joined: 09 Mar 2006
Posts: 6635


Posted: Mon Aug 15, 2011 8:33 pm    Post subject:

I would delete all memory blocks before starting from scratch...
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Mon Aug 15, 2011 10:09 pm    Post subject:

Tom.W wrote:
I would delete all memory blocks before starting from scratch...


Ok, I will search the pdf on how to delete the memory blocks. Thanks. Smile
Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Tue Aug 16, 2011 3:05 am    Post subject:

I redid the focusing and convergence using binoculars. Movie is Toy Story 3 played on Bluray at 1080p. So far, I'm very pleased with the results. Maybe it's time for me to work on my home theater Smile















Back to top
AnalogRocks
Forum Moderator


Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G

Posted: Tue Aug 16, 2011 9:39 am    Post subject:

What are you projecting onto?
_________________
Tech support for nothing

CRT.

HD done right!
Back to top
View user's photo album (27 photos)
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Tue Aug 16, 2011 2:03 pm    Post subject:

AnalogRocks wrote:
What are you projecting onto?


Material is blackout cloth that I bought from Jo-annes fabric. They only sell 54" in width. You can see the thin black seam line in the middle because I stitched them to be able to get a height of 67-70". It's currently at 126"x70". However, since the projector is on the floor, it's also being projected on the lower part. Smile

Here is a 2007 image but size is different now but still the same location. Sorry, basement is very messy. Sony 1272 seen on pic, ceiling. It's still mounted. Very Happy

Back to top
v1rtu0s1ty



Joined: 29 Oct 2007
Posts: 110


Posted: Tue Aug 16, 2011 6:36 pm    Post subject:

Can someone please post a close up picture of how you made the mount on your Barco projector? When I acquired my Sony 1272, it had the mounting kit included. However my barco only includes 2 piece of metal that are screwed to the chassis. I'm also thinking that the screw isn't strong enough.

Any help would be greatly appreciated. Thanks.
Back to top
This forum is locked: you cannot post, reply to, or edit topics.   This topic is locked: you cannot edit posts or make replies.    CurtPalme.com Forum Index -> CRT Projectors All times are GMT
Goto page Previous  1, 2, 3, 4, 5  Next
Page 3 of 5
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