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Re: Vestel 17PW20 intermittent backlight
Shikuru,
I was wondering if you ever fixed this problem? What was the cause? Was it the PSU or the inverter in the end?
I have a Finlux 32FLD760 with similar-ish problems (uses the same 17PW20v1 PSU).
I was just coming to the conclusion that I should probably get a replacement refurbished 17PW20v1 board from ebay, but reading your post made me concerned that it was possibly my inverter at fault instead, and that I could find it still didn't work even with a replacement perfect PSU in place.
Happy to hear your conclusions.
MikeComment
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Re: Vestel 17PW20 intermittent backlight
I know is a old tread but I want to share with everybody my experience with this PSU. https://www.youtube.com/watch?v=S49iIgI-6acComment
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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 ‘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... -
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... -
Hi all,
I have a Finlux/Vestel Led Tv with the following fault and cannot reason from where the fault is. Fault is:
Sound ok, Backlight ok, Picture nothing but colour vertical lines. power supply vestel 17 IPS 71, main board 17MB82S
Checked 12V on tcon on fuse ok.
Checked 12v and 24v on power supply ok.
Volume works. removed l left ribbon cable no picture white on half, and same with right one.
Any idea from where I can start please?
Any help appreciated please....
Comment