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Blue Blob: Bleeding?

08-13-2007, 03:58 PM
I just purchased an S-Video cable to hook my laptop (Dell Inspiron) up to my TV (Hitachi 50V500 or 60V500. I figured out how to run it and watched a few Youtube videos on my large screen TV. Towards the end of watching them, I noticed a blue blob on the left side of my screen. When I unplugged the cable, I noticed that the Youtube logo was still on the screen. However, after I started watching other TV shows, the logo disappeared.

Has anybody ever heard of this? Is there any way to fix this? Was it normal use that created the blob or should I hesitate to hook my laptop up again?

08-14-2007, 11:16 AM
What you describe sounds like Temporary Image Retention (TIR). This issue does not usually occur with lcd microdisplay tv's like yours.
However, your set has been the subject of complaints re its light engine (also referred to as the optical block). Light engine problems can manifest themselves as color smudges, blobs and other color uniformity issues.

Hard to say which issue applies here. If you are retaining an exact copy of the Youtube logo, sounds more like TIR, but that's the first I've heard of it in an lcd - I didn't think that was possible.

Try googling "Hitachi LCD V500 Issues Thread" and see what others are saying about your tv, including the above issues.

I doubt the laptop hookup is causing the problem, but I'm not as tech savy as others on here who may have additional, better suggestions.

If you begin to see color blobs, smudges, clouds, etc. I would suspect it's time for a light engine repair. Very expensive and perhaps not worth it in a set that "old." Only you can say if it pays.

Yes, unfortunately, 3-4 year old sets are "old" in the new world of tv tech, where new models come and go sometimes in as little as 6 months.

Good luck. :)

08-19-2007, 10:13 PM
Well the lite eng.is the problem like the note you got before me there is a cleaning process/which takes a tech.to do it takes about a good hour and if it doesn't correct the problem you have to change the optical block"AKA" light eng.which is costly..be patient Good Luck../The Doc..