Hi hoping to get a solution to this problem. Screen will go discolored and then back to normal with a power cycle but is now bad again. Sound is good still. Checked the power board and all the caps look good still.
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It would appear that your Samsung LN-T4665F television is experiencing a problem with discoloration. You can try a few things to get the problem fixed:
Check the connections of the cable: Check to see that the cables that connect the TV to other devices, like a Blu-ray player or cable box, are properly connected and not damaged.
Examine the power supply: Check to see that the TV is plugged in correctly and that the outlet is working properly. Check to see that the switch that controls the outlet is turned on.
Examine the settings: Check to see that the TV is not set to Sports or Game mode, which may cause the screen to appear dimmer.
Reset your TV: Wait a few minutes before reconnecting the TV to the power source. This can sometimes solve problems for a short time.
Examine the T-Con Board: The T-Con Board might be to blame if the problem persists. Discoloration issues can arise from this board, which is in charge of controlling the signal that travels between the television and the main board.
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Hi Bryan, These models are notorious for failing electrolytic capacitors in their Power Supplies, get the part number from the Power Supply Board and google it with +repair kits, there are many different kits available to tackle differing symptoms.Heres a massive 17 capacitor kit on Anazon: http://www.amazon.com/Samsung-LN-T4665F-Monitor-Capacitors-IP-301135A/dp/B00LU4UMW6
Sounds like a T'Con board fault. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
The power supply is most likely shot and need replacement. Swelled caps are only a issue some of the time most power supply issues are either a transformer, Regulator or diode problem. You can get free technical help from www.tvrepairworld.com to help figure out whats going on and they also have replacement parts available.
Hi, Most probably power supply board is defective and causing this problem, Samsung tv has common problem with power supply board so replace this board or check its capacitors that would be leaky/ dried up. Hope these info will help you. Let me know if you have additional question. Thanks.
The tv power supply board have those dead parts call capacitors,they alway have capacitors leakages of gases,bulges ups on it tops or puff up on it tops.These capacitors are having leaking gases and dying reqiure changing,u know basic's electronic and soldering.Replaced these dying capacitors soon to dead capacitors,ur tv will power up normally and work quickly.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
check if the back lamps are still on when you lose image, all you have
to do is get close to the screen and make is totally black and if is
not that means you have a back light working, but if the back light is
gone you may have a defective panel.
talked to samsung TA about
the same problem I had and the recommend to replace the power supply
first to confirm a defective panel because a panel is quite expensive
The set is under a year old and is under warranty. The LVDS cable inside these sets have a history of coming loose. The problem could be the panel. Either way, the set is the problem and needs to be looked at.
This set is worked on in the home and does not need to be taken to a shop, so, you can still use it.
Contact Samsung at:
Hope this helps.