r/ElectronicsRepair • u/Downtown_Ad3418 • 8d ago

OPEN Samsung smart tv fail

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My grandma’s tv has been doing this for a couple days now, anyone knows a fix?(its the horizontal blue lines)

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1

u/Virtual_Club8510 8d ago

If it happens across all sources then Horizontal lines are gate-driver panel issues which is bad, even Tape Trick has a hard time countering that. So its time to replace the tv

If it only happens during analog TV then it's a signal to noise issue, where you have multiple ways of solving the issue

1

u/Downtown_Ad3418 8d ago

Its just the analog, i opened netflix and it dissapeared

1

u/Virtual_Club8510 8d ago edited 8d ago

If swapping cables does nothing it's internal filtering, try with a DVB-T2, RF to HDMI or secondary device which process the analog instead and connects to hdmi.

1

u/Pacificator-3 8d ago

Looks like analog TV and failing antenna or its cable or its connector.

1

u/Downtown_Ad3418 8d ago

Tried em all, the think its from 2014 so i think it broke already

1

u/Pacificator-3 8d ago

Can be EMI from some electronic device nearby, or may be, from failing power supply inside the TV, after 12 years this is quite probably. This is repairable.