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Phil in the 2000's
Joined: 27 Aug 2009
Posts: 2
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| Posted: Thu Aug 27, 2009 9:29 am Post subject: Barco 708 purple line on top |
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hi i bought a barco 708 off ebay, been connecting it to my computer through the component cable 3 cables,
and thers a purple line just above the image, and i cant seem to get the aspect ratio right
also the image is upside down becuse its set at cealing mount overhead, but i cant change it! btw my remote doesnt seem to work
can anyone help me?
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Thu Aug 27, 2009 2:26 pm Post subject: |
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The remote control may be set to the wrong address, press the 'addr' button, then '0,0,0'. Make sure the battery is fresh as well. THe manuals are here:
http://www.curtpalme.com/Barco701_Downloads.shtm
Post a pix of the purple line. It could be tube wear, or ?
Also, the image is flipped by switching yoke connectors, the remote has nothing to do with flipping the image.
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Fri Aug 28, 2009 1:39 am Post subject: |
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That purple line is from your source, it appears on some HD sources when the image isn't perfectly centered, you can't get rid of it, but you can hide it with blanking. You can get the right aspect ration simply by adjusting your vertical and horizontal sizes to make circles round.
If I remember correctly, the plugs that have to be moved for switching it from ceiling to floor configuration are on the underside of the main board when you lift it up exposing the tubes. Read the installation manual, if its not posted here, I'm sure its somewhere on the internet...
In my experience, Barco IR remotes are TERRIBLE, they usually have an extremely narrow spot where they work, and often aren't picked up by the projectors two sensors. My BG808S will only ever catch the remote on the rear sensor, the front one is pretty much useless. I use a learning remote with Barco's almost exclusively because the transmission is soooooooo much more reliable than using the factory remote. But it certainly could be an incorrectly set remote address issue too, be sure to try that.
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r.bauer
Joined: 08 Apr 2006
Posts: 280
Location: The Netherlands
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| Posted: Fri Aug 28, 2009 5:40 am Post subject: |
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| Elaine Benes wrote: | | In my experience, Barco IR remotes are TERRIBLE, they usually have an extremely narrow spot where they work, and often aren't picked up by the projectors two sensors. My BG808S will only ever catch the remote on the rear sensor, the front one is pretty much useless. I use a learning remote with Barco's almost exclusively because the transmission is soooooooo much more reliable than using the factory remote. But it certainly could be an incorrectly set remote address issue too, be sure to try that. |
A little OT, but Barco remote's are just great and send out a very strong IR signal. Just a light tap on any switch while holding the remote in any direction will just work.
Maybe you have a fluorescent light, or IR light in the room that interferes with the Barco's signal.
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Fri Aug 28, 2009 7:27 am Post subject: |
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| Elaine Benes wrote: | | My BG808S will only ever catch the remote on the rear sensor, the front one is pretty much useless. |
Rear sensor is probably dead. Cover front one and see if back one works at all.
It's not uncommon that TBA2800 chip goes bad after years of use, it's active all the time when projector is in stand by.
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Phil in the 2000's
Joined: 27 Aug 2009
Posts: 2
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sat Aug 29, 2009 5:15 am Post subject: |
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Looks like that can be gotten rid of by the blanking controls.
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Stonefool
Joined: 24 Dec 2006
Posts: 253
Location: Sweden
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| Posted: Sat Aug 29, 2009 11:26 pm Post subject: |
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wow, I thought it would be a line over the whole image, not a speck in the image.
In the full image it looks like a burn in, but up close both blue and red are separated a bit still having the same odd shape.
Do you have that "speck" no matter the source material? Or source player.
Had it been a line over the whole image it'd be an alignment or bandwidth or signal issue.
The closest I can think of is a funny chipset on the convergence board, or a deep jack in a lens, or a scratch in on the color filter.
Heh mayb' a smudge, one shouldn't underestimate what one tiny sneeze can do in the wrong place.  )
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Trying to get everything to work.
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RobertMfromLI
Joined: 29 Jun 2009
Posts: 114
Location: West Islip, NY
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| Posted: Sun Sep 06, 2009 4:51 pm Post subject: |
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As mentioned (and it's not just DVD content) this sometimes occurs with various content. I see this with CRT screens when the image is "inset" on the screen (black borders all sides) and usually it is related to "extraneous" data being decoded/displayed. I believe in ancient days, it was often the audio signal and other data.
This seems to be caused when the "image processing" part of the unit is trying to grab a non-existant scanline - which would indicate a timing or sync issue (ie: adjust source timing/sync, and/or delete blocks on PJ and let it figure out the timing/scan freqs instead of matching a "close match" block already existing).
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Kirk's 5 Year Mission continues at Star Trek New Voyages: Phase 2
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