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Re: Samsung Flat screen 100hz tv - no power
Was the fuse blown?? if it was then you may have a current limitor block resistor that could have opened up as maybe the bridge recifyers are bad. If you measure the voltage on the inside you should have about 145 to 160 vdc on the main filter cap. If thats good then your switching supplys not working andf your gonna need a schematic as well as a meter and possibly a scope and an isolation xformer to trouble shoot this set. If ytou dont have these things call in a good local repair senter to assist you with an estimate. Good Luck.
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There is a chance the power supply is fried. However, I've seen some Samsung power supplies that have fusible resistors in the power supply for added protection. So your main fuse could be ok, but there could be an additional fusible resistor in the board as well. Also be aware, depending on where the surge entered the TV, you could also have a defective main board. Not trying to rain on your parade, but surge damage can sometimes be severe.
i would replace the fuse again and try a different outlet to rule out an electrical problem with that particular outlet. if it blows the fuse in a different outlet it's probably time to retire that TV set it's hard to find anyone to work on them anymore because they've become obsolete due to the flat screens.
a capactor( look like battries either black or brown ) has blown on main power board you will need a soldering iron you can tell whitch one by the shape of the top and look for raised top replace it with same one and note what side the line is on and put new one in same way
They do not use circuit breakers only fuses. The fuse is on the power supply board where the cable from the AC box plugs connects to the board. If the fuse doesnt fix it the power supply board will probably have to be replaced, if not one of the other boards may also be damaged.
Is the LED light on? If not then the Power supply may be bad. Try to unplug the TV and then plug back in. There is a fuse near the AC input. Check the fuse If the fuse is OK then the Power supply has gone bad.
Hi I have a Samsung Tantus Dynaflat 32 inch flat screen TXN3298hf that all of a sudden stopped working...no power no nothing. We opened up the back and found that a 5 amp fuse had blow. This fuse regulates that power supply to the tv and can be found at the end of the power cord prior to the circuit board. Hope this helps.