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ok have this plasma of my girlfriends and worked fine then it started picture would go out and screen be black but sound was still on and then would click back, then on and off same way but we also realized then when we had the cpu hooked up to hdmi watching movies it would freeze then play then freeze thought it would be ymain, but then with the picture freezing not sure could it be main or digital main?
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Re: lg 50pt350-ud goes on and off picture
any help please? -
Re: lg 50pt350-ud goes on and off picture
Connect the 2 holes marked EXT_AUTO_GEN
On the control board with a piece of wire, paper clip etc.
Disconnect the LVDS cable to the mainboard.
You will get test patterns on screen, let them cycle and see if the fault occurs.
If it doent your mainboard is the likely culprit.Comment
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Re: lg 50pt350-ud goes on and off picture
hamie I don't have that on my main. here is what is on my mainComment
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Re: lg 50pt350-ud goes on and off picture
ok it seems the picture goes on and off after it warms up alittle picture will come and go but sound will stay on, im not to sure what the little light on the tcon board is for? but t blinks then it will stay on then stay off its a little green led light. its in this picture, then I noticed the middle heatsink on the ymain is pretty warm not too warm where you cant hold your hand on it, just warm. but the tv is weird like the picture will go out stay out for a min then come back for ten then go out and such, I was wondering what that little green light is for on the tcon or digital control boardAttached FilesComment
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Re: lg 50pt350-ud goes on and off picture
You do have it you've read my post wrong.
Control board is the small green board in the middle of the TV.
I can see the test points in the photo you've uploaded.
After connecting the 2 holes, disconnect the LVDS cable (the cable that connects the MAIN AV Board to the control board)Comment
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Re: lg 50pt350-ud goes on and off picture
ok hamie im doing this, am I suppose to let it stop at some time or what do I do? do you mean for me to just let this keep cycling to see if the screen will cut out?Comment
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Re: lg 50pt350-ud goes on and off picture
Yeah if it's not affected then the mainboard is almost certainly causing your fault.Comment
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Re: lg 50pt350-ud goes on and off picture
Couldnt be ymain?Comment
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Re: lg 50pt350-ud goes on and off picture
If the test patterns run fine then the y-main shouldn't be the problem.
Possibly it's bad solder joints under the mainboards processor.Comment
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Re: lg 50pt350-ud goes on and off picture
Well got new main today that didn't fix the problemComment
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Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.
The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.
Original T-con:
Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.
First replacement T-con:
I thought it might be t-con and ordered new t-con from china(supposedly tested)... -
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... -
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 ‘fading' 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 ‘new' 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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