Why won't unit come on just keeps clicking
when I push power unit just keeps clicking nothing else happens, no picture or anything. Iread some where that may be fuse
steve beseke, start with the basic major checkpoints. This is still one of the models that may suffer from Samsungs decision to use substandard capacitors on the power board. Your symptoms are pretty indicative of that. Post some good images of your power board etc. with your question. that way we can see what you see and we might be able to help you out further. Capacitor kits are readily available. Of course, it does not hurt to check the fuses for continuity.
I had the same problem with my TV and looked online to figure out what it could have been.. Turns out there was a class action lawsuit and my TV model was part of it. I contacted Samsung gave them my model # and the gentlemen said my TV was covered..they sent a Samsung tech the following day and he reapaired it on site..fast,very professional and free...
I also had this problem with my Samsung 50inch and I changed the power supply capacitors; did not fix.
Checked input voltage 120vac,but when I plugged in the connector the voltage dropped to 55vac.
Checked zener diode VX801S and resistor RX801S(750K) , both were bad. Changed and the problem was fixed.
Had the same issue with 2012 model. Have a background in electronics so decided to have a look in the back (no test equipment). Noticed some discolouring around 2 pins on the power supply board that feeds the main processor board. Closer inspection showed that the plastic insulation between the pins had melted and they were shorting out (hence the continued on and off cycle). Cleaned the pins, used some silica set to insulate the pins, cleaned them and put panel back together. All working and keeping and eye on it re over heating.
Had the same problem with Samsung 55 inch. The the digital audio (optical) connector flashes intermittently as it clicks. Took it to a tv repair guy. He said he had the tv on for 3 hours and nothing happened. He said that if the TV turns on it may not be the power board. But the board where everything (inputs and outputs) connects. But said he could not find parts (probably because he did not know what was broken). Any of the boards cost $250 or more. Cost $30 for that advice. I took the TV home and it worked for more than 5 hours before the clicking started. Every time I had taken the TV apart it will work for a few hours so maybe it is a heat issue or electricity dissipation fixes the issue. I called a Samsung authorised service agent here in Melbourne. Asked for $160 for a home visit or $88 for me to bring it in. Without any guarantees it would be fixed. Anyway - don’t ever buy Samsung is the lesson I have learned.