Samsung LE26S81B randomly reboots
Good day folks. I thought I should ask for some tips on this TV which keeps turning off and restarting at random intervals. Browsing the internet didn't prove very helpful because apparently this is a strange model, unheard of outside Europe, so all I get are some random russian websites which don't actually provide any troubleshooting, so I thought perhaps someone who had this issue on a different model but with similar boards can provide their 2 cents.
I know the issue can be very broad to diagnose, so let me narrow it down: I've replaced all "important" caps on the BN44-00191A PSU, both on the primary and the secondary, with the exception of the ones for the inverter, but the issue is still there so I doubt it's a PSU issue at this point. I get the correct voltages where they should be. Have a look at this motherboard, it's a BN41-00878a which I believe is used in other sets as well. CPU failure ? Bad caps on the main board ? The TV is almost 9 years old according to the guy and it's kept on almost continuously because it's used with a set-top box which they just turn off while and leave the TV on to turn off on its own when it's left without a signal for too long, so you can imagine it's had a tough life if it runs, say, 8 out of 10 hours every day....
EDIT: it seems to be rebooting more and more often the longer I let it run and the hotter it gets....definitely something failing in there....
I know the issue can be very broad to diagnose, so let me narrow it down: I've replaced all "important" caps on the BN44-00191A PSU, both on the primary and the secondary, with the exception of the ones for the inverter, but the issue is still there so I doubt it's a PSU issue at this point. I get the correct voltages where they should be. Have a look at this motherboard, it's a BN41-00878a which I believe is used in other sets as well. CPU failure ? Bad caps on the main board ? The TV is almost 9 years old according to the guy and it's kept on almost continuously because it's used with a set-top box which they just turn off while and leave the TV on to turn off on its own when it's left without a signal for too long, so you can imagine it's had a tough life if it runs, say, 8 out of 10 hours every day....
EDIT: it seems to be rebooting more and more often the longer I let it run and the hotter it gets....definitely something failing in there....
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), so perhaps there's a part that fails when it's cold and works fine when heats up. Caps usually do this, but with so many of them (solid state ones no less) it's impossible to guess which or IF one of them is indeed on its way out, that's why I was curious to see if somebody else fixed a similar board and is able to tell me "replace THIS and it should work".
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