Re: [PCWorks] Vertical lines or bars suddenly appear only on the ATI AIW TV tuner and MMC, comes and goes.

  • From: LarryB <larryb227@xxxxxxxxxxxxx>
  • To: pcworks@xxxxxxxxxxxxx
  • Date: Tue, 12 Aug 2008 11:09:55 -0400

They don't sound out of line to me. I sure would like to see that video 
signal with the symptom on a scope. Is the monitor you are using a LCD type?

Also I think I asked if the lines were top to bottom (vertical) with no 
slant left or right.

LarryB

Have a great day


Clint Hamilton-PCWorks Admin wrote:
> Yeah I know that much, but like l said I don't have a scope. 
> Checking the AC is a good idea.  12v line is showing .001vac, 
> 5v line is showing .0085vac.
> Thanks,
> -Clint
> 
> God Bless
> Clint Hamilton, Owner
> http://www.OrpheusComputing.com
> http://www.ComputersCustomBuilt.com
> 
> 
> ----- Original Message ----- 
> From: "LarryB"
> 
> 
> LarryB wrote:
> 
>>The voltages being "right" does not mean it does not have a 
>>ripple.
>>Check the DC line with the AC volts and see how much it is.
>>
>>Larry Browning
>>K & L Electronics
>>Anderson, SC
>>
>>
>>
>>Clint Hamilton-PCWorks Admin wrote:
>>
>>>Thanks for the reply Larry.  Both of your posts are below.
>>>
>>>There are no fluorescent lights in the room.  "The lines 
>>>don't
>>>move around, but they do appear to 'flash' or 'bounce' a 
>>>bit."
>>>Maybe "twitch" is another word to use.
>>>
>>>I don't have a scope anymore, but all the voltages on the 
>>>PSU
>>>are ok.  What you said reminds me that I could check the 
>>>UPS,
>>>something may be afoul with it.  When I can, I'll shutdown 
>>>and plug
>>>the PC directly into the wall outlet.
>>>Thanks,
>>>-Clint
>>>
> 
> 
>>>----- Original Message ----- From: "LarryB"
>>>
>>>No I have never heard of exactly what you are describing 
>>>before
>>>but the first thing that came to mind was turn all your
>>>fluorescents off. I have seen many strange problems with 
>>>these
>>>light when the start acting up.  They can produce a beat
>>>frequency that often shows up in monitors and Tv's.
>>>
>>>Are the lines from top to bottom and stationary?
>>>
>>>Another thought came to mind and that is the power supply.
>>>Probably high freq. but if you could look at the DC line 
>>>with
>>>a scope you might see the same freq. Filters could cause
>>>this. Any supply to any thing in the chain. I would think it
>>>would show up in other modes though. I would also
>>>expect it to travel across the screen at some rate.
>>>
>>>Larry Browning
>>>K & L Electronics
>>>Anderson, SC
>>>
>>>
>>>
>>>Clint Hamilton-PCWorks Admin wrote:
>>>
>>>I tried posting this at a hardware forum, no replies.
>>>
>>>I'm suddenly having a strange problem with my ATI AIW 9800 
>>>Pro
>>>when watching the MMC TV tuner.  Sometimes it looks normal.
>>>But suddenly vertical lines can appear.  There's a pattern 
>>>of
>>>10 vertical lines, then a separation of about 1 vertical 
>>>line
>>>wide where there is NOT a vertical line, and that pattern
>>>repeats itself across the TV viewer window.  So it's 10
>>>vertical lines, space, 10 vertical lines, space, 10 vertical
>>>lines, space, etc.  The lines appear white when the 
>>>background
>>>is black, and they appear black when the background is 
>>>white.
>>>Color under the lines is normal.  What is strange is if I
>>>change channels, a partial faint "ghost" image of the 
>>>original
>>>channel where the lines started showing remains!
>>>
>>>I can click the input selector to change inputs--S-video,
>>>composite, cable, and the lines not only remain, but the 
>>>faint
>>>ghost after-image of the last scene on TV before changing 
>>>the
>>>inputs also remains!  There is also a long delay when 
>>>changing
>>>inputs, compared to when this problem is not happening, 
>>>there
>>>is no delay when changing inputs!
>>>
>>>The lines don't move around, but they do appear to "flash" 
>>>or
>>>"bounce" a bit.  Another thing that's most odd, is if I 
>>>resize
>>>the TV window, the lines will resize.  Regardless of how 
>>>small
>>>or how large the TV window is, there is always 10 bands of 
>>>10
>>>lines vertical.
>>>
>>>And still another strange thing, the problem is recordable, 
>>>but
>>>when I record something from TV the lines almost disappear!
>>>When I stop the recording, they reappear!
>>>
>>>It's not the cables, I can remove them and nothing changes.
>>>It's also not the cable feed, because I can actually remove 
>>>the
>>>coax cable, and the lines remain.  So it's either software 
>>>or
>>>TV tuner failure, and I fear it's the latter.  However, when 
>>>I
>>>use the composite input with my VCR connected and use the 
>>>VCR's
>>>tuner, the lines are still there!  So that doesn't sound 
>>>like
>>>tuner failure, but some other problem with the card.  ***But
>>>the card in every other way is totally normal.  My monitor
>>>display is totally normal, webpages, folders, colors, all
>>>perfectly normal.***  The only problem is when watching TV.
>>>
>>>I ran the "repair" installation of the MMC and that didn't
>>>help.  That's as far as I'm going to know for now, unless
>>>someone can tell me they think this is software or drivers,
>>>then I'll remove and reinstall them.......because any of you
>>>ATI users know that screwing around with their drivers or
>>>software can be disastrous.  I don't want to risk that 
>>>unless I
>>>know removing & reinstalling could fix the problem.
>>>
>>>I'm using the Omega version of the latest ATI Catalyst 
>>>drivers.
>>>MMC is v9.08 (because later version are a joke, they have 
>>>less
>>>features and TVoD is on all the time).
>>>
>>>So has anyone ever seen or heard of this before?
>>>-Clint
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