Chosen Solution
I’ve got no power, and no standby light on my Samsung UN55D6050TXF. Visual inspection of the main board and power supply board do not indicate any problems. While plugged into power, if the main board is unplugged from the power supply board, the TV’s backlight will turn on. The button/control/IR board and main board have been replaced, no dice. What’s going on?
@redtopsr20 take a couple of pictures of all of your boards and post those with your question. That way we can see what you see. Use this guide Adding images to an existing question for that. You did not tell us what you measured. Good to know that the backlight comes on without the main board but that will not help you. Check the fuses on the the power board as well as the T-con board. since you have no standby light it is most likely that this is your power board that has failed. Without the standby voltage, your TV will not do anything.
Lets start with the Timing control board (T-con Board). Locate F 11. If you find this, measure with the continuity of a volt meter. If the volt meter has audible, the T-con is fine. If you don’t have an audible on the volt meter, set the meter on diode. Test F 11. If it registers 0, the T-con is fine. Thanks for asking Matt of Martins TV Repair.
I would certainly look at fuse on the T-con board. Location (at the end of one of the ribbons ) F11. 125v @ 3A. Grab your ohm meter and set for continuity. If the fuse is good the meter will read 3 or less………even 0. If your meter has an audible it will chirp or ring……indicating good. If there is no reading (meter will not show any number or resistance). No audible, fuse is open and T-con is bad. Thanks for asking, Matt of Martins TV Repair.
