Hello every one, please help. I have a DEG LCD tv that when i power it on, the backlight comes up but does not produce picture or sound. Please, can any one tell me what to check?
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this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even... -
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 everyone,
so my TV recently decided to stop working.
At first, it sometimes showed just one color on screen after switching it on, but as far I remeber the menu still worked.
Now theres no way to get it to that anymore, just a blank screen :/
I've already tested unplugging either the right or left cable from the TCon to the panel, but neither halves of the TV had a picture (see attached files). The white half is always on the unplugged side, the other side stays blank.
With the right cable unplugged, the right side faded to grey after leaving... -
Hello all! New to TV repair and trying to bring a TCL 75R615 back from the dead. I've tried to do my basic research/reading but am at a loss so thought I'd see if anyone had some suggestions.
The TV powers up and I can see the backlight on. I can hear sounds by navigating the remote.
I tried disconnecting each side of the LVDS cables one at a time, powering off for a while between, and it didn't change anything. So my first guess was the TCON board so I order a replacement and swap that in. Didn't change anything.
Next I thought I'd try swapping the...