Ok guys I am at my wits end. Got a Sanyo DP-55441-01 from a good friend that was not working due to lightning. When I first got it it did nothing...I had 5 volts standby...changed out the mainboard and got backlights and screen is on but I have no menu,volume etc.... I ordered another tcon board and changed it...same results. next I changed the Power Supply no change. I also unplugged the master and slave backlight boards and get the same results as below. The set also turns on with a green powerlight and after 10 seconds the green power light starts flashing red/green really fast. Set never turns off. I still get no menu, volume etc. How do I check for a bad LCD screen?
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Last edited by jomede; 08-11-2018, 06:10 AM. -
Re: Sanyo DP-55441-01 no picture
no one?
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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... -
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