Question about RCA 27V520T 27" TV
TV will not come on, when I unplug it and plug it back in the red light comes on but not the tv. tv won't come on.
Hi the problem you are having is going to be one of the most common problems with that type of telly the problem is going to be the flyback transformer needs replacing and also the transistor neads replacing its the one located nearest to the flyback transformer and it will be on a heatsink.
If you are unsure what im telling you then you shouldnt risk the repair yourself as the telly has power stored in it even when its unlpugged it might not kill you but you will get a nasty shock as the voltage is amplified inside the telly so is greater than 240v so dont mess with it unless you are sure what you are doing.
If you are doing the repair yourself then you need to get the schematics so as you can get the test points that you can test using multimeter and osciloscope this telling you whats exactly wrong as a resistor or two could have blown when the transistor failed also the schematics will give you part numbers.
The transistor and any resistors are easy to replace but you nedd to protect the new ones from heat damage when soldering the new ones in you need to dispurse the heat using clips or something similar.
Now the difficult bit is unsoldering the flyback transformer this carrys high volts of electric and will give nasty shock if you dont dispurse the electric charge first you need to short across one of the caps to earth but you need to know the right one.
to remove flyback it regiures alot of unsoldering and resoldering possibly causing damage to the new one during soldering is easily done.
If you are going to get someone else to do the work like repair shop your looking at about £45 uk or $80 to $90 us so you need to think is it worth it let me know if you need further assistance ok
Posted on Feb 11, 2008
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Posted on Jan 02, 2017
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