Hey guy im trying to fix my 52" lcd tv. Everytime i turn it on only the power light stays solid green. No opc light nothing. When you hit the power button all you hear is a clickng noise that comes from what sound like the power supply. Exchanged the small power supply and larger one. Still having the same issue. Any ideas?
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Re: Sharp LC-52D64U no picture
Most likely, is an inverter issue. -
Re: Sharp LC-52D64U no picture
Need good clear straight on pictures of back of tv with cover off and each board.
Need voltages from connector that goes from power supply board to main board. Will need pin#- PIN DESCRIPTION -Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Description - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.I assume no responsibility for any stupid suggestions I might post.Comment
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Re: Sharp LC-52D64U no picture
Sorry guys been super busy lately havent had time to jump on here. Ok so i started doing some testing and figured it was the main board ordered it installed it. Then i started getting a power light blinking. Reset tv by disconnecting power holding channel up vol down plug tv back it and vola. We got picture. Thanks guys i appreciate the help.Last edited by Mikeyjohnson; 04-29-2017, 01:54 AM.Comment
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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... -
Hey everyone! I inherited a "free" Sharp lc-70le755u with a strange picture issue. To try to explain, the picture flickers before what I think is a power saving mode kicks in and reduces the back light. I took a short video and uploaded it here:
https://imgur.com/NAou7aP
I'm thinking it could be the TCon board, but possibly the panel. Thought it might be worth it to post here and see if anyone has a better idea before I try throwing parts at it. If its the panel (which I hope its not), then I won't bother trying to fix it. -
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...
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