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PhoneTech
Joined: 29 Aug 2008
Posts: 21
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| Posted: Sun Sep 14, 2008 2:28 pm Post subject: Barco Data 801s Upgrades |
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I have a Barco Data 801s with very nice tubes, but the chassis has almost 10.000 hours on it. The image is still pretty good, but it is pulsing a bit when displaying images. The lines in NTest are a bit wobbly and a bit soft.
I read on several forums that replacing the caps on the neck boards will make the image more stable and the colors will improve too. I want to replace them with the following:
2 x 25V 22µF 85˚C --> 25V 22µF 105˚C Panasonic FC radial elec cap
2 x 25V 220µF 85˚C --> 25V 220µF 105˚C Panasonic FC radial elec cap
25V 100µF 85˚C --> 25V 220µF 105˚C Panasonic FC radial elec cap
250V 10µF 85˚C --> 250V 10µF 105˚C ???
I can choose between 2 types of caps for the 250V one: Vishay 151 RLH Aluminium Radial Cap,250V,100uF and the Panasonic Al electrolytic cap ED type A,100uF 250V
A member of the dutch htforum told me that the panasonic is of a different series. Since I am not that familiar with all the terms presented in the datasheets, I was hoping someone here could tell me the difference between the FC and ED types or if I should go for the Vishay.
I also want to upgrade the caps on the SMPS to improve picture quality.
Which caps should I replace on this board?
On the images from eisseman's website, the RGB path on port 3 and 5 boards are replaced by bigger caps.
When searching for replacement caps for port 3 and 5 boards, the size of the replacement caps are the same as the orginal unlike the ones from Greg. Should I step up the voltage to 50V for these caps?
Will this improve my picture quality as well?
I found some older topics on this forum on replacing the caps on the port 3 board (https://www.curtpalme.com/forum_archived/viewtopic.php@t=206.html
My setup: HTPC (nvidea 8800 GT) -> 10m DVI -> moome external -> port 3
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PhoneTech
Joined: 29 Aug 2008
Posts: 21
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| Posted: Mon Sep 15, 2008 7:48 am Post subject: |
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I made some screenshots to record the baseline from which I start the modding.
What do you think of these? I will make some sharper ones of the ntest.
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Mon Sep 15, 2008 11:45 am Post subject: |
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What resolution you are using? You wont get very sharp image with es focusing tubes with high res.
That curve in vertical lines seems more like deflection/sync issue. I'm pretty sure those caps wont help to that problem.
It's still good idea to chance those few 100 uF 85deg caps to smps primary section.
http://www.curtpalme.com/docs/Barco_FSB04_SMPU_Capacitor_Upgrade.pdf
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PhoneTech
Joined: 29 Aug 2008
Posts: 21
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| Posted: Mon Sep 15, 2008 11:57 am Post subject: |
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I am running at 1280 x 720 @ 60 Hz.
Because I use Port 3, i need to set the HPhase all the way to 14. I played around with powerstrip, but that did not work for me very well.
When I connect to port 5, the HPhase can be set to 50. Is this preferred?
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PhoneTech
Joined: 29 Aug 2008
Posts: 21
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| Posted: Mon Sep 15, 2008 7:45 pm Post subject: |
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Just connected my moome box to Port 5 and the image is less soft and the linearity is perfect now. The image seems less soft as well. It is now connected with 1.8 meter vga - bnc cable. I guess I get an even better picture with a HQ 30cm cable.
The image is still shaking a bit vertically, so I hope i can remove this shaking with new caps. I am not going to upgrade the port 3 card as I won't use it. Can I remove the Port 3 card to increase air flow?
Kind regards,
Bart
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