With the TV fully assembled, I only get a flashing screen and no audio. When I unplug the PSU from the screen, I get audio and can change channels. Plugging the PSU back in gets the flashing screen again. Any idea what could be wrong? I think I have the problem isolated to the screen. This is a Samsung UN50AU8000F
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@garrettbanuk take the back cover off and let us see your boards, as well as where you disconnected the screen. I assume you did that on the main board. Also, take a cpuple of well focused pictures of the board (panel) where the ribbon cable from the main board plugs into.
Follow this and let us know what you find out:
Disconnect Panel Cables from Main Board
→ Power TV On
Next Check TV Powers On (Audio – No video)
→ If TV now Powers On
Next Verify Backlight Turns On
→ If No Backlight → Perform Backlight Test
1. Activate Backlights Test : Disconnect Lead Cable from Main to Power Supply.
2. If NO BACKLIGHTS
→ If any missing replace SMPS Board. → If supplies are OK replace Panel.
3. If BACKLIGHTS ON BUT PANEL SECTION(S) OFF
→ Repeat Step 2.
→ If any CH Backlight Supplies are low or missing replace SMPS. → If supplies are OK, replace panel.
This does sound like a panel issue but let's see what we can find out.
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Hi Garrett,
There are a LOT of Samsung TVs on the market, and troubleshooting depends highly on which one you have. Please edit your question or add a comment letting us know the model number on the back of the television.
crwdns2934271:0crwdnd2934271:0 Jerry Wheeler crwdne2934271:0