<![CDATA[iFixit - Answers With Device "Samsung LN-T4065F"]]> https://www.ifixit.com/Answers/Device/Samsung_LN-T4065F?rss=yes en-US Fri, 08 May 2026 11:24:02 -0700 <![CDATA[Samsung LN-T4065F: Lose picture few seconds after turning on set]]> Turn on set, have picture for few seconds, and then screen goes blank

⟐ Answered April 08, 2024 at 1:21 MST

]]> https://www.ifixit.com/Answers/View/844022/Lose+picture+few+seconds+after+turning+on+set https://www.ifixit.com/Answers/View/844022 Mon, 08 Apr 2024 01:21:58 -0700 <![CDATA[Samsung LN-T4065F: Backlight powers off - Backlight is OK, capacitors have been replaced]]> This 40 inch Samsung TV was a dump find in 2013…replaced leaky capacitors and all was well until a month ago and the backlight turned off, but could hear the sound. Held a flashlight up to the LCD….it was still working. Capacitors had leaked onto power board again. Cleaned it up, ordered new capacitors. Worked fine for a couple of weeks, then the same symptom….working fine then no picture.

I took the back off and let it run that way. It stayed on longer, but eventually powered off.

I think the backlight itself is still OK and the backlight tubes are OK since there is no dimming….they are either on or off.

As I wasn’t too happy with the quality of the capacitors, I may order new, better ones. Anything else I should check on the power board?

⟐ Commented June 06, 2020 at 16:43 MST

]]> https://www.ifixit.com/Answers/View/639280/Backlight+powers+off+-+Backlight+is+OK,+capacitors+have+been+replaced https://www.ifixit.com/Answers/View/639280 Sat, 06 Jun 2020 16:43:03 -0700