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ncc1701d
Joined: 08 Aug 2007
Posts: 187
Location: sweden
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| Posted: Thu Jan 10, 2008 10:03 pm Post subject: Would like a sticky for barco mods/upgrades |
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I have searched the forum for tips to improve picture quality on BG1208 or any simalr barco but i'm sure i havent found all.
I am looking for guides to replace caps, transistors and other mods to improve quality that i can do myself.
Like this for example:
https://www.curtpalme.com/forum_archived/viewtopic.php@t=206.html
Would have been great to have all these tips in the same place, right?
_________________
BG1208 and BG1208/2
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Thu Jan 10, 2008 11:37 pm Post subject: |
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That link and Kal's on ringing are pretty much the only ones I know. The rest is just set it up correctly according to Guy's guide.
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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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ncc1701d
Joined: 08 Aug 2007
Posts: 187
Location: sweden
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| Posted: Fri Jan 11, 2008 12:03 am Post subject: |
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There is one more i can't find right now: the one with the resistor replacement on port3 inputboard.
There must be more to do? example: replacements of caps etc in hv module etc?
Simple component replacements on neckboards etc..
Or how to change lenses.. there is much one can do. All on same place would be nice.
_________________
BG1208 and BG1208/2
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Fri Jan 11, 2008 3:52 am Post subject: |
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It would be easier just to start a thread like the lens thread. "All about Barco" Makes it easy to search for, add to and remember.
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gcom007
Joined: 26 Aug 2007
Posts: 112
Location: Beverly Hills, Michigan
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| Posted: Fri Jan 11, 2008 5:07 am Post subject: |
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What might be easier is to have one thread stickied that had a link maybe to wiki pages that could be set up where people could post information on Barco's. The page could even then be broken down to address issues with the different projectors.
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-Elliot
Barco 1208s/e
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Fri Jan 11, 2008 11:54 am Post subject: |
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I have lately played lot with some diy mods to 120* non s series, but I'm not completed yet. Results are very promising though.
Mods include extra filtering for +-12 and +-5V power rails in every card in rgb path. I have also chanced every BSX20 transistors in signal path to better ones, that push BW before end stages up to +1GHz. Better transistors seem to need also different kind peaking circuits. This far I have by-passed switcher completely to see how good I can get driver and neck cards.
Sharpness is fine and no ringing anymore with 1080p72, but I still need to try to find source for residual noise. I have to check filament, 230V, 185V and 110V rails from neck cards. I have also upgraded power input main board to match 1209s schematics (4x 820uF vs 6 X 1000uF), but haven't tested this yet. Probably not much effect to anything, but I like to know...
Here is something about BSX20 chancing.
https://www.curtpalme.com/forum_archived/viewtopic.php@t=1948.html
This one have been in hold, until I get front section to work good enough.
https://www.curtpalme.com/forum_archived/viewtopic.php@t=3236.html
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Fri Jan 11, 2008 3:36 pm Post subject: |
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| kal wrote: | So my 2 cents: If everyone gave their 2 cents as to what threads should be sticky threads, we'd have 26 pages of sticky threads, defeating the entire purpose of sticky threads. 
Kal |
But he does have a good point maybe there could be a few stickys, like "Tweaker's Threads" then format it like this:
Barco threads:
x
y
z
Quee Threads:
...
This way, there is only 1 sticky.
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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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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Fri Jan 11, 2008 5:46 pm Post subject: |
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Maybe it could be broken down this way.
1) Lenses.
2) Tubes.
3) Astig.
4) Focus and convergence coils.
5) Video chain.
6) Miss.
Things could be explained in general that applies to every PJ and then if there is something specific to one PJ that could be added. Most of it is already out there, it just needs to be organized in a way new people can find and understand it.
Deron.
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JustGreg
Joined: 07 Mar 2006
Posts: 3098
Location: Kenosha, WI
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| Posted: Fri Jan 11, 2008 8:13 pm Post subject: |
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| deronmoped wrote: | Maybe it could be broken down this way.
6) Miss.
Deron. |
Hey. If Mississippi gets a stickey I want one for Wisconsin.  
_________________
Greg
"Is it ignorance or apathy? Hey, I don't know and I don't care!" --Jimmy Buffett
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Fri Jan 11, 2008 8:17 pm Post subject: |
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| Person99 wrote: | | kal wrote: | So my 2 cents: If everyone gave their 2 cents as to what threads should be sticky threads, we'd have 26 pages of sticky threads, defeating the entire purpose of sticky threads.
Kal |
But he does have a good point maybe there could be a few stickys, like "Tweaker's Threads" then format it like this:
Barco threads:
x
y
z
Quee Threads:
...
This way, there is only 1 sticky. |
That's a good idea. If someone spends hours putting it together and then promises to maintain it, I'll make it a sticky! 
Kal
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My basement/HT/bar/brewery build 2.0
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Fri Jan 11, 2008 9:13 pm Post subject: |
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Another thought might be to have Kal link the stickies to the advanced procedure or manufacturers specific page.
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Fri Jan 11, 2008 9:30 pm Post subject: |
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| JustGreg wrote: | | deronmoped wrote: | Maybe it could be broken down this way.
6) Miss.
Deron. |
Hey. If Mississippi gets a stickey I want one for Wisconsin. |
No, you read that wrong...
Miss. is the section to post avatars 
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sat Jan 12, 2008 1:59 am Post subject: |
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Sex on the golf course. Sticky links.
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Tech support for nothing
CRT.
HD done right!
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ncc1701d
Joined: 08 Aug 2007
Posts: 187
Location: sweden
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| Posted: Tue Feb 05, 2008 12:16 am Post subject: |
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Hey Ile, how's it going? I have a spare 1208 i would like to experiment with, so if you have anything you can release it would be very fun 
| Ile wrote: | I have lately played lot with some diy mods to 120* non s series, but I'm not completed yet. Results are very promising though.
Mods include extra filtering for +-12 and +-5V power rails in every card in rgb path. I have also chanced every BSX20 transistors in signal path to better ones, that push BW before end stages up to +1GHz. Better transistors seem to need also different kind peaking circuits. This far I have by-passed switcher completely to see how good I can get driver and neck cards.
Sharpness is fine and no ringing anymore with 1080p72, but I still need to try to find source for residual noise. I have to check filament, 230V, 185V and 110V rails from neck cards. I have also upgraded power input main board to match 1209s schematics (4x 820uF vs 6 X 1000uF), but haven't tested this yet. Probably not much effect to anything, but I like to know...
Here is something about BSX20 chancing.
https://www.curtpalme.com/forum_archived/viewtopic.php@t=1948.html
This one have been in hold, until I get front section to work good enough.
https://www.curtpalme.com/forum_archived/viewtopic.php@t=3236.html |
_________________
BG1208 and BG1208/2
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Tazzy
Joined: 22 Feb 2007
Posts: 35
Location: Netherlands
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| Posted: Tue Feb 05, 2008 8:35 am Post subject: |
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Any info on the RGB mod? Saw something about feeding RGB to the barco directly into RGB board
_________________
Sony 1251+20upgrade & Barco Data 808s (still broken) in the HT
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Tue Feb 05, 2008 10:00 am Post subject: |
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| ncc1701d wrote: | | Hey Ile, how's it going? I have a spare 1208 i would like to experiment with, so if you have anything you can release it would be very fun |
I got newer s series boards to play with, so I probably leave non s series mods to others.
I pm'd some info.
| Tazzy wrote: | | Any info on the RGB mod? Saw something about feeding RGB to the barco directly into RGB board |
Not sure what you mean.
Your BD808s have new style back end cards and port5 gives very good picture as is. Streaking is possible with 75 MHz neck cards, but that can be fixed...
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Tazzy
Joined: 22 Feb 2007
Posts: 35
Location: Netherlands
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| Posted: Tue Feb 05, 2008 12:36 pm Post subject: |
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I'm not sure how it worked but I think it was bypassing the internal switcher.
The picture of the final setup I saw had 5 extra BNC ports on a separate board
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Sony 1251+20upgrade & Barco Data 808s (still broken) in the HT
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