I have a lg 47inch lcd picture starts jumping after 30mins like this in picture 1 and then the picture go,s like this after anther 15 mins picture 2 any help please could it be the t-com
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Re: lg 47inch picture fault
looks like panel fail to me,bad tab bonds
try re-seating lvds cable after cleaning contacts both ends with iso alcohol
flex gently the screen,does anything change?
still could be t-con though
can you show a picture of the screen,with the menu up ?Last edited by multimeter; 01-14-2014, 12:22 PM.fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!
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please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully! -
Re: lg 47inch picture fault
I'm going to agree with panel, and I've never had good luck repairing LG panels with tab faults :/. Has to be zero for three on success rate.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: lg 47inch picture fault
thanks allComment
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Re: lg 47inch picture fault
Well--trust me to disagree!
I had a 37" LG 1080P set on Sunday with exactly that symptom--Working well for up to half hour, sometimes only 10 mins from completely cold. Strange thing is--certain scenes, like computer generated stationary images (intros to programs etc) were mostly stable--only when the pic changed to motion would it go beserk!
It was the Mainboard at fault.
Changed the T-Con, no difference, replacement (Philips-LG) mainboard cured the fault completely.
It was a LG 37LF66 summit or other....TELEFIX
How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
http://www.irf.com/technical-info/appnotes/an-1088.pdf
PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!Comment
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Picture looks stretched out and it looks like every other vertical line is not being drawn though hard to see that in the pics.
I've disconnected each half of the panel and the fault remains exact save for the disconnected side being white.
The original complaint was the tuner stopped working so the main was replaced however the new and old board exhibit the same picture defect.
Nothing is getting hot and pushing on the panel drivers effects no change in the picture.
So with that does anyone know how to enter the Service Menu on this... -
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...
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