Just picked up a Vizio vp50hdtv20a Plasma. There are a lot of posts about this model. The issue I am having is that it will power up and the screen will flash mainly on the right side of screen for a split second then go out but if you look closely you can see a slight dim light sorta fuzzy but very slight. I will post pics but any initial thoughts?
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Re: vp50hdtv20a Picture issues
Here are some pics. Set does power and doesn't go into shut down just no picture. I did find a swollen cap on the one board and replaced it with no change.Attached Files -
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Re: vp50hdtv20a Picture issues
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Re: vp50hdtv20a Picture issues
Ok Found a small defect on the upper buffer chip. Removed the chip and half of the screen is now lit.Comment
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Re: vp50hdtv20a Picture issues
Not very brightly lit but lit.Comment
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Re: vp50hdtv20a Picture issues
Here is a picture of the screen with the upper buffer board removed. I have it connected to a Blue Ray player and can hear sound but thats it. Does it require the upper buffer board to actually show the picture or is there something else wrong?Attached FilesLast edited by landyboy; 09-11-2013, 04:48 PM.Comment
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Re: vp50hdtv20a Picture issues
Yes upper buffer needs to be connected, its in a series circuit, if no upper buffer present, sustain feed does not address the lower.Did I leave the soldering iron on?Comment
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This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.
Problem
TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode... -
Hello,
could anyone please tell me what is likely to be causing the CRT picture quality issues as shown in the attachments and what it'd take to fix it if that is possible?
The picture has a greenish tinge, colour scan lines are separated and there can be shimmering and the bottom can be missing at first. It has slowly gotten worse over time.
It is worst when first turned on and slowly improves but not resolves over a period of approximately 90 minutes. Warmer room temperatures possibly have a positive influence.... -
Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered... -
I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started βfading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
I ordered a supposedly βnew' Tcon board this time, and... -
Hello, Last week I bought the 50" Sony X80j tv everything was working fine, untill I plugged the tv in a ups power supply 650va the tv remote control became unresponsive and the TV became laggy after a while the picture quality isn't the same as before the tv seems less brighter and the picture is somehow blurry, people's faces don't look as natural as before, there is a mini orange-pink tint to the edge of people's faces especially in NETFLIX Dolby Vision like in One Piece ep1 Alvida skin tone, my intention was to protect the tv but something went wrong I checked the ups with a multimeter,...
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