How to troubleshoot a Samsung LED TV that does not turn on and has a standby light Click Here for Replacement Parts: http://www.shopjimmy.com/samsung?utm_source=youtube&utm_medium=samsungrepair&utm_campaign=samsungrepair In this video we will review how to troubleshoot a Samsung LED TV that won't turn on and does have standby. In Samsung LED TVs, you can have differences in the number of boards. Most will have a main board and a power supply board, while some may have an LED driver board and t-con board. This TV just has a main board and a power supply board. Here is the main board, and here is the power supply board. The LED driver can sometimes be built onto the power supply board as we can see here on this TV. The t-con board can also sometimes be built onto the main board or into the TV panel. This TV has the t-con connection here and then it runs into the panel. Click the link in the video for more information on the basic functions of these boards. If you cannot power on your TV, the first thing you will want to check is that you have the TV plugged into an outlet that is working. After making sure that the outlet is working, you will want to check and see that your TV has a standby light. The standby light will typically be blinking or illuminated on the front of the TV. If your TV will not power on, and you do have standby, then the problem is most likely with either the power supply or the main board. The first thing you can do is to visually inspect the main board and power supply looking for damaged components. Here we have a closeup of the power supply. You can look over the board and do a visual inspection, looking for any raised or puffy capacitors or any burnt or damaged components. Here are some examples of what a puffy capacitor or burnt or damaged component will look like. If you have any damaged components that look this way, you should replace the board. If there is not a replacement board available you can also try replacing the individual components or purchasing a repair kit. Removing and installing new components requires the ability to be able to solder. When looking for damaged components, or burn marks, you can also look at the bottom side of the board. You would simply just need to disconnect all of the cables and then remove the screws that hold the board to the panel. Be sure when disconnecting cables and removing screws, that you you take a picture of what the board looks like in the original state with all of the cables connected, and then you will have a reference for when you reconnect all of the cables. Here is a closeup of the main board, you can look over the board and do a visual inspection, again looking for any damaged components. If you have any damaged components, then you should replace that board. If you do not see any damaged components, then that next step would be to check voltages on the power supply an the main board. If you do not have the skills or tools to check voltages, but still want to try and fix your TV, you could also replace the power supply and main board, one at a time, and see if one of those two boards, fixes the problem. If you are going to purchase multiple boards and replace them individually, to see if one of the boards fixes the problem, before purchasing, be sure to understand the return policy of the company you are purchasing from as there may be re-stocking fees for any returned parts, or parts that are not returnable at all. Here are some other videos that can help with troubleshooting Samsung LED TV Repair. TV Repair Made Easy™ © 2015 ShopJimmy.com, LLC.