i replaced all nec tokin with 470uf caps , first time was working , but only with one xclamp not fully screwed up. Second time no more boot and after full short on 12v , now i removed every caps and solder just want to make from scratch . Short is gone .
I scratched in the center for convenience but it is gnd anyway.
The correct way to diagnose PS3 YLOD (it briefly flashes yellow before going red) is with the syscon diagnostic method using a USB to TTL converter, soldering a few wires to specific test points on the board, and using a wonderful script someone wrote to connect to the syscon and get it to spit out error code.
This guy's video is a little long but between the video and the items he has in the description, it should get you everything you need to get the syscon to spit out the error code for you. Once you get the codes, you can go here to see what the actual problem with your PS3 is: https://www.psdevwiki.com/ps3/Syscon_Error_Codes
Long gone are the days of just replacing the NEC Tokin caps and hoping that was the cause of your YLOD
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