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Samsung LN52A580 52 in. HD-Ready LCD TV Questions & Answers
Hdmi 3 quit working
If you put the input from HDMI3 into HDMI2 does the problem follow the input, or does it stay with HDMI3? If it stayed with HDMI3, check the connector visually for damage (cracks, dirt, bent connector). You may have to replace the board, or if you are really handy, the connector. If the problem moved to HDMI2, then look for a cable or device problem.
Hdmi invalid format 1080p
If you put the input from HDMI3 into HDMI2 does the problem follow the input, or does it stay with HDMI3? If it stayed with HDMI3, check the connector visually for damage (cracks, dirt, bent connector). You may have to replace the board, or if you are really handy, the connector. If the problem moved to HDMI2, then look for a cable or device problem.
Flickering
For Anthony Pitt, The Samsung in your questiobn does not use the same power supply, I found one tip that says to check transistor Q802S on your power supply module, to insure the middle leg of the transistor in not broken from the transistor to the pc board. Thsi can cause erratic behavior. If the screen starts to behave after it's been on for awhile, your issue may be defective capacitors. Be certain none of the capacitors have raised tops. I have had intermittent issues with 46 and 52 inch screens. Failure occurs at the ribbon connector of the lcd screen and is only repaired by replacing the screen. I've found some repair tips on You Tube, but these have not been very reliable.
52 inch Samsung Flat Screen TV
I see so many here with no sound/nopicture issues:ISSUES: 1. IF sound main fuse/s are good.2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.3. almost all these sets the troubleshooting involves
checking voltages on the main power board to narrow down theproblem.4. Be safe and if you do not know what you are doing don't open the set.Answers to issues:1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.4. Safety first--no TV set is worth getting injured or even killed over.
My picture is to the
check the zoom settings and look for the option to move it to the right. this can usually be found on the same location for the aspec ratio
One side of my tv gets dim and out of focus it is a samsung. At times it works fine
back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
How do I troubleshoot my Samsung TV?
I have sound, but no picture.
Caps can fail with no outward signs. It takes a special meter to test them. Your set may have a back light inverter that powers the back lights. When it fails, the picture cant be seen, but you have sound, to check this look for a picture on the screen using a flashlight
My Samsung Tv modle LN46C600F3F has sound no picture, what could be wrong?
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced.
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