iFixit - Answers With Device "Samsung UN55F6300"

Samsung UN55F6300: I have thin black horizontal lines evenly spaced down the screen.

Fri, 02 Aug 2024 19:35:42 -0700

So I have thin lines all the way along the screen. They are always there but they used to fade after the TV had been on for a few minutes.

https://imgur.com/gallery/mJVenuv

⟐ Commented August 02, 2024 at 19:35 MST

Samsung UN55F6300: My tv won’t turn on. Cycles itself but never gets to the main screen

Mon, 18 Jan 2021 18:26:11 -0700

My tv tries to turn on. Red light goes out and you can see the screen turn on but stays black. Then it turns off on its own again. And cycles through that process again and again.

I took the back cover off. Everything looks to be in good shape. No bulging capacitors or loose connections. As soon as I plug the tv back into the outlet it cycles itself trying to turn on. I just see a faint change of the screen trying to boot up. Red standby light is off and blinks once every 10 seconds or so

⟐ Answer edited January 18, 2021 at 18:26 MST

Samsung UN55F6300: My samsung is 55UNF7100 power on black screen with white flashes

Wed, 17 Feb 2021 16:16:19 -0700

All of a sudden my TV samsung 55UN7100 when I turn it on the red light keeps flashing and the screen is black with white light flashing and blinking

⟐ Commented February 17, 2021 at 16:16 MST

Samsung UN55F6300: snowy picture issue without set top box

Thu, 29 Sep 2022 20:13:33 -0700

ok so I've been google and searching forums like crazy to no avail. I am dealing with a Samsung smart tv with a fuzzy picture. There is no set top box as do not use cable tv. it seems to be when streaming on prime or other such apps. please what do i do, i can only find fixes involving cable boxes.

⟐ Answered September 29, 2022 at 20:13 MST

Samsung UN55F6300: My remote has suddenly stopped working on apps and settings.

Fri, 01 Aug 2025 17:15:46 -0700

My remote control will turn on the TV and control the volume and the arrow buttons and enter button will work to switch me from app to app, or to take me to settings. But once I open an app or try to navigate through settings, the remote stops working. It’s almost like the IR sensor stops working once I get to those stages.

⟐ Commented August 01, 2025 at 17:15 MST

Samsung UN55F6300: control buttons on tv do not work.

Tue, 23 Jan 2024 20:59:00 -0700

control buttons at lower right corner of tv do not work. Only the power button. Same on remote control only power button. Does the main board control this?

Get picture no sound, but I have no controls.

⟐ Answer edited January 23, 2024 at 20:59 MST

Samsung UN55F6300: My wifi not showing any name and not connecting to any wifi

Thu, 20 Jul 2023 02:17:19 -0700

I try searching wifi but not showing a single wifi name it will not showing wifi mac address in about

⟐ Commented July 20, 2023 at 2:17 MST

Samsung UN55F6300: Why does my screen go black every few seconds, loses sound with pictur

Thu, 09 Feb 2023 16:34:27 -0700

I turn on tv, get smart screen logo as always, picture, then it goes to black, then smart screen, and just repeats over and over. Sometimes no sound. This started immediately after I set up a smart tv in another room, just a coincidence I'm sure-strange timing! Turned off tv, cable box, unplugged all, changed HDMI cord.. help!

⟐ Answered February 09, 2023 at 16:34 MST

Samsung UN55F6300: What does this screen mean and how to fix it?

Fri, 23 Sep 2022 01:47:51 -0700

My tv just went to this screen, what does it mean and how do I fix it?

⟐ Answer edited September 23, 2022 at 1:47 MST

Samsung UN55F6300: Thin Vertical Line Down Screen;

Wed, 17 Aug 2022 17:08:51 -0700

Good afternoon, my three year old daughter put some wax on the screen and I had to clean it off. I applied a small amount of pressure and shortly thereafter, this showed up. Anything I can do?

⟐ Answer edited August 17, 2022 at 17:08 MST

Samsung UN55F6300: Samsung tv UN55J6200AFXZA no stand by light

Thu, 17 Jun 2021 11:15:09 -0700

So I have a Samsung UN55J6200AFXZA that has no stand by light. I’ve done a little research from here but can’t find my specific problem. So I’ve replaced the power supply thinking that’s was the issue but no go. Both boards make the same clicking noise from the relay. I started unplugging cables and I believe i unplugged the one going to the screen, as it was the cable from the power supply that went onto the side with the screen not the main board, and got the standby light to blink 6 times and the relay stopped clicking. Plugged it back in and it started to click and light went out. Is my display bad?

⟐ Commented June 17, 2021 at 11:15 MST

Samsung UN55F6300: White and colored vertical lines

Sun, 16 May 2021 20:56:39 -0700

Model # is UN50J6200

Had been powering off unexpectedly for a few weeks, now has whole screen of vertical lines. Have removed back panel and cleaned contacts with compressed air. Specifically, the power connection between boards and also the flat screen connection ribbon. None of the wiring has any apparently burned spots or corrosion. There is also a small pixelated spot at lower left of screen that appeared, screen has not been bumped or hit to make that mark appear, was not there one minute and then there the next. What do I need to replace?

⟐ Answered May 16, 2021 at 20:56 MST

Samsung UN55F6300: Why is there a shadow in my screen

Fri, 08 Jan 2021 16:48:46 -0700

Why do I have a shadow in my screen about 3 inches

⟐ Answered January 08, 2021 at 16:48 MST

Samsung UN55F6300: Has power but no display

Sun, 13 Sep 2020 11:30:55 -0700

I have power to the tv because I installed lights that connects to USB port in back but the screen no long have a picture or when you turn it on where it has the box that tells you that you have no connection any longer. I took the lights off to see if that changed anything but it didn’t. Still turns on but I still have no lcd display. Any suggestions

⟐ Answered September 13, 2020 at 11:30 MST

Samsung UN55F6300: Why does my tv come on and turns off by itself after 1 min

Sun, 18 Aug 2024 16:48:07 -0700

my tv turns on and turns itself of after one minute of being on. everything looks fine. Do I need a power supply or is this an internal problem?

Samsung UN55F6300: At the time of starting tv so is heard short circuit like sound.

Fri, 08 Jul 2022 12:03:21 -0700

At the time of starting tv so is heard short circuit like sound. This sound have been repeated 3 to 4 times.

Samsung UN55F6300: TV won't turn on and LED keeps blinking UN55D6050

Mon, 22 Mar 2021 17:39:06 -0700

I have a UN55d6050 Led just blinks when I plug in. I’ve replaced both the board and the power supply board on the right any other suggestions ? Update When I disconnect the power supply from the other board the backlight comes on. I replaced the board on the right side is there something I missing ?

⟐ Edited by author March 22, 2021 at 17:39 MST

Samsung UN55F6300: Samsung UN55F6300 Power Cycle Issue

Tue, 06 Oct 2020 06:43:05 -0700

I'm trying to fix my parent's tv and having difficulties finding out the problems with this Smart TV.

It's having a power cycle issue. Sometimes it stays a little longer if I have some video contents playing through third HDMI input (about 5 minute or less) but most of the time it just power cycles itself after Samsung Smart TV boot logo, black screen, restart. The remote control doesn't work other than the power button (I have to hold it down a little long to turn tv on with it). The joystick behind the TV can only turn TV on when it wants to, can't access the setting menu, can't change video source, can't do anything else just as useless at the remote control. It can only accept video source from 3rd HDMI input.

I tried unplugging T-Con connector, issue still there, I also tried unplugging Wifi connector, IR/Joystick cable but none fixed the power cycle issue.

If I unplug the Power cable to main board connector, backlight will stay on. I also checked the voltage reading from power board and got constant around 12v and none of the capacitors/transistors showing any sign of bulging or burned out.

Could it be the main board that is causing the power cycle? Has anyone fixed a F6300 series? What are the common issues with main board failing on these Samsung Smart TV?

Here's the suspected main board: BN94-07217F Main Board for UN55F6300AFXZA (WH04)

Any help is greatly appreciated. I don't really want to take it to the repair shop and spend more than what it is worth. My parents don't even care anymore, already got their old CRT tv out lol.

I can't get to the setting menu with the remote or the joystick behind the tv to updat the firmware lol and even if I could the TV doesn't stay long enough to let me update the firmware.

I tried to hard reset the main board but it didn't help, same issue still there.

Pic of Power Board

Pic of Main Board

⟐ Commented October 06, 2020 at 6:43 MST

Samsung UN55F6300: Why does my tv have a shadow on the bottom of the screen?

Sun, 22 Mar 2020 15:20:28 -0700

My tv screen has a shadow across the bottom?