Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
Is the panel repairable or need to be changed?
Is the panel repairable or need to be changed?
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
Can you grab a service manual? might not be saveable, I don't think I would run it in that state. Will probably just mess up your new tcon if it hasnt already.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
Wonder whats making the panel draw too much current.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
https://elektrotanya.com try there I'm having a problem with acrobat reader.Last edited by nomoresonys; 03-17-2018, 10:39 AM.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
It depends, you might get lucky and find a shorted ceramic capacitor on the PCB in between the tcon and panel. Or it could be a shorted chip on the flexible film between this board and the panel, in which case it's not repairable.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
I found the manual there, what exactly am i looking for?Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
https://www.youtube.com/watch?v=98a8iMokMcY if you can get to those boards you might be able to test the bad one and replace a component if its not the bond itself. Have to be very careful, they're connected and they have to stay connected and they're kind of delicate.Last edited by nomoresonys; 03-17-2018, 11:08 AM.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
https://www.youtube.com/watch?v=UNf81Z-i1FE Check that video, it's both tragic and hilarious.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
Shouldn't be too hard to determine the bad component if you have one, compare one of the good boards readings to the possibly bad one, see how his bad board was right where the display fault is? just need to get the test procedure right and know what to set your meter at ohm diode etc.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
https://www.youtube.com/watch?v=yTnkOfwBGGE Nice little test there.Comment
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Re: TOSHIBA LCD 37ZV635DG No picture but sound and backlight
http://www.androiderode.com/how-to-test-opto-coupler/Comment
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Hello everyone,
Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
Anyway I still fully expect that there has been something seriously damaged... -
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 ‘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... -
Hey Guys,
So a few months ago my Sony XBR 49x900e TV screen stopped displaying the picture but the backlight comes on and I still get sound when I use the remote and navigate to certain apps. I haven't checked anything with the meter yet but started with ordering some replacement boards. I've tried replacing the BMKS board (used from ebay) and also completed the firmware upgrade based on Nicks TV repairs youtube video. I've also replaced the TCON (twice) and PIB.
All of these changes have resulted in the same issue with no picture. I've also tried disconnecting the ribbons...
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