Repairing a TV that doesn't turn on - power supply - diodes in parallel?

[@JonVellone]

Nice Explanation of the troubleshooting process Thumbs up

[@raulcabronero5649]

I have hereba 4k tv quasar have some diodes one between each other like in parallel one only has shorted i will try inly take out one

[@mertsamet2953]

hello . my english is not so good . but i understand little .. failed diode .. you didnt replaced with new one .. why ? .. three diodes enough ??

[@jfaria]

Diodes in parallel are usually not a good idea, when they get warm only one of them does most of the work anyway.

[@mertsamet2953]

@@jfaria ohh thanks jose .. i wil try

[@malvargeronilla3502]

i got the same problem with this one. do the 2 diodes will long last?

[@jfaria]

It is still working after all this time. There is probably not that big of an advantage having diodes in parallel like that.

[@malvargeronilla3502]

@@jfaria ok boss. thank you for sharing your experience. i will do the same just like what you did

[@malvargeronilla3502]

@@jfaria lastly. i will ask you..what happen to the current when connected in parallel? it will add or subtract?

[@jfaria]

@@malvargeronilla3502 If it is the same problem, make sure you remove all the bad diodes and leave only good ones. In theory the total current of the diodes should be added, however they are never exactly the same, that means some diodes will do more work than others.

[@malvargeronilla3502]

@@jfaria boss it is ok when i replace diode rating 5A 150v to 5A 200v ?

[@giorgostexnikos6976]

they need thermopad the other diodos.