Hi.
Fixed my first TV about 3 months ago and have been hooked ever since. This site has been invaluable. I've now got 7 now-working TVs under my belt (and much bigger TVs than I started with in every room). I've even attempted (and apparently succeeded) at changing out a blown scan driver IC on a plasma buffer board. Hoping I can give a little back with this one since it was a PITA to figure out with no schematics or service docs out there and couldn't find this one in the posts.
This was my friend's Element ELGFT401 that was giving him picture issues. When it was first turned on after being allowed to cool to room temp, the picture was fritzy and jumping around from the moment the 'element' boot screen was displayed. Once it "warmed up" for a minute, the picture was fine. It would occasionally go to solid dark blue screen...sometimes a solid green screen....sometimes the pic would be wavy crazy green / white spaz...my friend says sometimes pic would completely go out and have sound with no picture. Usually turn off and back on would bring it back to life...sometimes some waiting was required.
All the voltages on Power supply more or less matched what was printed on the board. After a lot of head scratching and searching around the forum posts, decided to try to use the poor man's freeze spray (upside down air-in-a-can) and see if I could find someplace that made the problem come back once it got happy(ish) and was showing a good pic. I found that when I sprayed the "PC board" (SZTHTFTV1812), the screen went nutz. I was able to pretty much completely turn the problem on or off by freezing...or blowing it with a hair dryer. Using various cardboard wedges and MacGyver-esq ingenuity, I was able to narrow it down to a 220uF 10V capacitor on that "PC board". Pulled it out of the board and measured it with my cheapie ESR tester and was showing about 353uF w/ 1.9 ESR. When I froze it, my tester thought it was a diode!
Popped in a temp fix 220uF 35V (closest I could grab at local RadioShat for a quick temp test). Dropped that guy in and...ta-da! No more crack-frenzied spaz-tastic screen schenanighans. Used it for a couple hours...froze it...heated it...no more issues!!! Gonna give it back to him to run until a proper cap comes in.
If this post helps you at all...please add to the post and share your experience. Looks like lots of other TVs share this same base sub LCD controller "PC board" Part Number - SZTHTFTV1812 (Other Elements, Seiki, Sylvania, Viore, Westinghouse..based on my quick feEBAY and shopJimmy searches).
Fixed my first TV about 3 months ago and have been hooked ever since. This site has been invaluable. I've now got 7 now-working TVs under my belt (and much bigger TVs than I started with in every room). I've even attempted (and apparently succeeded) at changing out a blown scan driver IC on a plasma buffer board. Hoping I can give a little back with this one since it was a PITA to figure out with no schematics or service docs out there and couldn't find this one in the posts.
This was my friend's Element ELGFT401 that was giving him picture issues. When it was first turned on after being allowed to cool to room temp, the picture was fritzy and jumping around from the moment the 'element' boot screen was displayed. Once it "warmed up" for a minute, the picture was fine. It would occasionally go to solid dark blue screen...sometimes a solid green screen....sometimes the pic would be wavy crazy green / white spaz...my friend says sometimes pic would completely go out and have sound with no picture. Usually turn off and back on would bring it back to life...sometimes some waiting was required.
All the voltages on Power supply more or less matched what was printed on the board. After a lot of head scratching and searching around the forum posts, decided to try to use the poor man's freeze spray (upside down air-in-a-can) and see if I could find someplace that made the problem come back once it got happy(ish) and was showing a good pic. I found that when I sprayed the "PC board" (SZTHTFTV1812), the screen went nutz. I was able to pretty much completely turn the problem on or off by freezing...or blowing it with a hair dryer. Using various cardboard wedges and MacGyver-esq ingenuity, I was able to narrow it down to a 220uF 10V capacitor on that "PC board". Pulled it out of the board and measured it with my cheapie ESR tester and was showing about 353uF w/ 1.9 ESR. When I froze it, my tester thought it was a diode!
Popped in a temp fix 220uF 35V (closest I could grab at local RadioShat for a quick temp test). Dropped that guy in and...ta-da! No more crack-frenzied spaz-tastic screen schenanighans. Used it for a couple hours...froze it...heated it...no more issues!!! Gonna give it back to him to run until a proper cap comes in.
If this post helps you at all...please add to the post and share your experience. Looks like lots of other TVs share this same base sub LCD controller "PC board" Part Number - SZTHTFTV1812 (Other Elements, Seiki, Sylvania, Viore, Westinghouse..based on my quick feEBAY and shopJimmy searches).
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