Re: samsung ue55nu7021k backlights working but blank screen
Thankyou
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Re: samsung ue55nu7021k backlights working but blank screen
The memory may be full, you can try to do a "factory reset" through the service menu.Leave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
Sorry but is there a way that you can get an email when someone replies?Leave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
Hi, thanks for your replies.
So I don't believe temperature affects it as starting to go wrong in the same room its been in for the past 2 years!
I try and do an update to the firmware but it just crashes and doesn't do anything and reverts back to the same screen.
Sorry what do you mean by a faulty nand IC?
hank you for your help. Its only like 2.5 years old!Leave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
maybe a faulty nand ic/firmwareLeave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
Sounds like maybe a firmware problem. Does temperature affect problem?Leave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
Hi, wondering if anyone can help. I have the same model TV, Samsung UE55NU7021KXXXU. The TV was running fine but then all of a sudden started encountering problems. The sound would work, the remote wouldn't work! Now the TV turns on, although very slow boot up now but when it does it comes with the Samsung Logo then onto a screen showing No Signal. I try pressing Source on the remote but nothing happens. The home button also doesn't work, so I can not get any of the smart apps up. Also, everything is running very slowly.
However, if I click the actual button at the bottom of the screen and bring up the menu, then I get goto source and manage to select one of the HDMI's and get a signal. However while the picture shows, i keep getting the turning circle (as per the attached photo of the BBC news - you can just see the turning circle in the middle of the screen) and it says it's adjusting the picture. Also there is no sound. Under the settings, the picture test shows fine but sound test fails to work. I should add that this is temperamental as well as sometimes also does not work (the button at bottom of screen)
Any ideas on how to fix? I've added some photos of the screen and model to help.
Also, some times when I boot, instead of the normal commands, I get coding on the titles (as per photo)Attached FilesLeave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
Are you female? Do you hear sound? if you hear maybe there's a fault in the tcon section of your mainboard , but i don't know if you are familiar with electronic inspections..Leave a comment:
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Re: samsung ue55nu7021k backlights working but blank screen
If you got the Samsung logo to come up does it go any farther after that or just freeze at the logo?Leave a comment:
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samsung ue55nu7021k backlights working but blank screen
I have a Samsung ue55nu7021k that has working backlights but has a dark blank screen..
I've tried a couple of different boards from a friend without success, however, one of the boards produced the Samsung Smart logo on the screen so I'm guessing it's the main board that's at fault, is there anything I could try to repair the board or is it a case of buying a new one ?
Thanks in advanceAttached Files -
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Hi guys
I'm trying to fix this laptop screen
Basically the owner is a computer shop and they brought it to me with two screens. They said the repair shop they use could not fix it, so I thought i would try to see if I am better than their current repairer!
OK so I have the original screen which works but has lines across the bottom quarter of the screen
I have the replacement screen, which they fitted and it worked. They then put the laptop on one side for a couple of weeks until they found a buyer. When they showed it to the buyer, the screen would... -
Hi I am new to this kind of repairs but I want to learn..I have a Samsung UN65JS8500F. the TV used to work and I tried to fix darker areas in the middle only ( img 1,2,3). I thought the led strip were bad..not the case. I did not research in advance what kind and where the LED were located. In this model they are located vertically on right and left side. Took the TV apart and put it back together. Now the tv shows no welcome screen and no sound is available thru the speakers. ..just a black screen..Backlight LED do turn on...also noticed a 5 blink code , not sure if that was there before. I can... -
Samsung UE55JU6800K with no image on screen.
I have had this TV many years without fault, however aprox 6 months ago I fitted a new set of backlights as some of the lens caps had fallen off.
Was working fine, until 3 days ago, when watching TV the screen just went blank (still illuminated)
I turned the TV off and left it around 12 hours, and when turned it on again it seemed to work perfectly again. After around 45 mins the screen went blank again.
Left it off overnight and turned it on, and the Smart TV logo came on as normal, then screen went blank.
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Hi it looks like everything works don't know where to test except the 390v in the 2 capacitor in the hot side of the power supply and the weird 180v in the diodes in the cold side that should be discharged it is writin on the circuit no more you can read what is written on the circuit quite srrange color mixiing yellow and white
anyhow i couldn't t read anything else
the backlight is on strong and the screen does not get dark or very dark but no pictures
the mainborad feels a bit hott on the black part i test it to 52 degree's against 34 to 40 on the rest of it
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Hey guys
I got this TV from my friend and he said that one day he was trying to power it on it was just dead.
I did open the back of the TV and check the boards and cable connections and everything seems ok (no popped caps or anything visible).
I tried to turn it on few times and when I plug it in it flashes "Smart TV" logo and goes dark for about 20 seconds (no backlight yet) and after that the backlights are lit but no picture and didn't give any startup sound, sometimes it didn't start up but did show the standby led only and every time I pushed power...
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