Addison Reinhardt since all three LED lights are blinking you need to check a few things. If all three indicator lights are blinking, your lamp may require replacing. Sometimes, if your lamp is still ok, you can reset the lamp hours to trick your TV. See if this works for your Samsung
Turn your TV off
Press "Mute" "1" "8" "2" and "Power" on your remote. If that works you need to select the "Lamp hours" option in the "Options" menu and reset the lamp hours.
The service manual has this to say about the 3 LED blink code:
Three led light blinking
Check the voltage to the ballast. It should be about 280V. If there is no voltage, change the power supply. Do you hear the ballast fire (snapping)? If not, change the ballast. If all checks out OK, change the DMD.
For the how-to, this video should work for your TV as well.
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