Hey guys i recently got this smart tv in and the problem with it is, now i'm going to split this up from what the seller told me, what i first experienced and then when things went down hill.
*What I was told - This tv went through what he described as a powersurge through an unprotected outlet because he noticed other electronics acting weird through this outlet. He described that the tv would randomly turn itself off and on during random intervals of the day. sometimes it would stay on for a few hours sometimes it would shut off instantly.
*When i got home - I experienced just what he described about random shutting off and turning on. So, I took the tv to my work area, ripped it apart ( almost breaking the rear connector which is for the Infra-red sensor/ input control and wifi card) and took a look at the power supply. I figured it was relatively safe to assume since the screen looked fine, picture came in, backlights were fine, that I was looking at a Power supply issue. I didn't notice anything wrong with the supply at least nothing obvious. No caps looked busted, I checked the fuse on the supply and it checked out. I even checked a few various resistors. couldn't find anything that way so I decided just for the heck of it to switch power cables as well and plugged the tv back in without that rear cable for the input and wifi plugged in. Well, the tv fired up and stayed on for a good few minutes. So i decided to switch power cables. Again Tv stayed on, no sign of trouble. So i plugged that input cable back in and fired it up. Yet again no problem. So i decided to completely reassemble it and give it a full on test.
*3 days later - ok so the tv's been working 100% I was getting ready to sell it when....disaster it started rebooting again. It started at about 10 second intervals. It would fully load the menu's then shut off and reboot. Then i noticed it slowly becoming quicker until the point where all you would see is the backlight flicker before it rebooted then it was just off / on.
I haven't ripped it back apart after it started doing this again but I have a feeling I'm not going to find anything different from what I found before. I have heard that several Samsungs like this one had power issues. I'm not sure if this one is suffering from something similliar ( I can never figure out what in those Supplies went, just that samsung covered alot of repairs where they replaced the power board). I'm also not sure if it was just electrical malfunction from the "surge". If anyone has any thoughts please let me know. I'd like to fix this board if i can rather than simply replace it.
*What I was told - This tv went through what he described as a powersurge through an unprotected outlet because he noticed other electronics acting weird through this outlet. He described that the tv would randomly turn itself off and on during random intervals of the day. sometimes it would stay on for a few hours sometimes it would shut off instantly.
*When i got home - I experienced just what he described about random shutting off and turning on. So, I took the tv to my work area, ripped it apart ( almost breaking the rear connector which is for the Infra-red sensor/ input control and wifi card) and took a look at the power supply. I figured it was relatively safe to assume since the screen looked fine, picture came in, backlights were fine, that I was looking at a Power supply issue. I didn't notice anything wrong with the supply at least nothing obvious. No caps looked busted, I checked the fuse on the supply and it checked out. I even checked a few various resistors. couldn't find anything that way so I decided just for the heck of it to switch power cables as well and plugged the tv back in without that rear cable for the input and wifi plugged in. Well, the tv fired up and stayed on for a good few minutes. So i decided to switch power cables. Again Tv stayed on, no sign of trouble. So i plugged that input cable back in and fired it up. Yet again no problem. So i decided to completely reassemble it and give it a full on test.
*3 days later - ok so the tv's been working 100% I was getting ready to sell it when....disaster it started rebooting again. It started at about 10 second intervals. It would fully load the menu's then shut off and reboot. Then i noticed it slowly becoming quicker until the point where all you would see is the backlight flicker before it rebooted then it was just off / on.
I haven't ripped it back apart after it started doing this again but I have a feeling I'm not going to find anything different from what I found before. I have heard that several Samsungs like this one had power issues. I'm not sure if this one is suffering from something similliar ( I can never figure out what in those Supplies went, just that samsung covered alot of repairs where they replaced the power board). I'm also not sure if it was just electrical malfunction from the "surge". If anyone has any thoughts please let me know. I'd like to fix this board if i can rather than simply replace it.
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