Re: No Picture Samsung LED TV
ok probable shouldnt have but bridged a little speaker wire across fuse and plugged tv on, got multi coloured lines running all way through screen but unplugged (was only on for 2 seconds) and a little bit of smoke came from can smell burning copper or likes on the tcon ? im guessing i was wrong to try this ?
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Re: No Picture Samsung LED TV
I would use a slow blow / time delay type - the very fast acting may blow under normal in-rush currents.Leave a comment:
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Re: No Picture Samsung LED TV
will try that, maybe a bit of speaker wire ?? board says 125v 3A which is why i was thinking this would be suitable ?
http://www.ebay.co.uk/itm/FUSE-3A-12...item43cbb1604fLeave a comment:
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Re: No Picture Samsung LED TV
As to that ebay fuse--I ve no idea--Whats the ratings of the original--As should be marked on either it--Or the board....Leave a comment:
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Re: No Picture Samsung LED TV
Does it look as though its been out?
The rating of it should be on the board. You can tack some wires to a conventional fuse of the right rating and tack that across the original as a test.....Leave a comment:
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Re: No Picture Samsung LED TV
would this do ??
http://www.ebay.co.uk/itm/FUSE-3A-12...item43cbb1604fLeave a comment:
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Re: No Picture Samsung LED TV
yeah i know Alaistar E, what should i replace this with though ? i guess someones tried to repair beforehand and put in the wrong fuse ?Leave a comment:
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Re: No Picture Samsung LED TV
measured voltage on fuse and got 12.65v in and 0.03v out
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Re: No Picture Samsung LED TV
Just check voltage at either side of the fuseLeave a comment:
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Re: No Picture Samsung LED TV
do i just test it as if im testing a regular fuse ? should i test the voltage points next to the fuse also ?Leave a comment:
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Re: No Picture Samsung LED TV
Green fuse with label 125V/ 3A printed on the board, someone may have replaced the SMD with PICO fuse.Leave a comment:
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Re: No Picture Samsung LED TV
Tom, I tried disconnecting each ribbon and still the same no picture. do i test the voltages on the point i have circled in red ?? and also where is the fuse on this board ?Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: No Picture Samsung LED TV
That's a samsung T-con.
RUNTK.... is Sharp's prefix for LCD TV bits.
I know some Sharp panels are having no picture failures.
You can try disconnecting one of the t-con ribbons and see if you get half a picture, if so that confirms the panel is bad (try both ribbons)
And pictures! Pictures!!!Leave a comment:
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Re: No Picture Samsung LED TV
You can check at the fuse...
and consider investing in a basic analog scope, they are available on eBay for sometimes less than £50
(do not get a USB or "toy" LCD scope, they're useless; pick up an old, big, heavy CRT scope with 20MHz or more bandwidth and you can test a lot of things)Leave a comment:
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Re: No Picture Samsung LED TV
Does it use the RUNTK5351TP T-con these are failing on this and other models big time and not cheap to replace, backlight on with sound but no picture FlockoLeave a comment:
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Re: No Picture Samsung LED TV
First check the T-con board if it has any power, then look at the LVDS signal from the main board on a oscilloscope. Just flick the menu on and off on the TV and you should see a difference on the oscilloscope.Leave a comment:
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Re: No Picture Samsung LED TV
still get a backlight... is there any further testing i can do to determine if bad panel ?Leave a comment:
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This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 05:50 AM
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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... -
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... -
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 all,
This is my first post, but long term lurker on the form learning as much as possible about these TV's. I was given this TV as due to a power outage of constant On/off of power to TV. The TV originally would just click on and off (Typical Reboot Cycle). I opened the back of the TV, and troubleshooted by taking the 96 pin LVDS off one at a time to see if I had a picture on either side. I finally fixed the reboot cycle by finding the error on the left side of the screen off connector CN 1301, and the TV would stay on. Further troubleshooting led me to the driver boards where...
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