I have 3 T4400 laptops with power supplies that I'm troubleshooting after replacing all the caps. I get enough life from the power boards to get blink codes (not post codes) via the battery light (hex 0d) . Laptop does not proceed to post, and I have determined that the blink codes originate from the PS itself.

No idea where to go from here. I did some basic continuity testing of the mosfets and transistors and they all seem ok. I've tested some of the voltage pins and get mixed results. I have a pinout via the service manual ( https://www.minuszerodegrees.net/manuals/Tosh … ce%20Manual.pdf )but it is not very descriptive. I also don't understand the blink code table.

Im hoping someone has dealt with these issues before.

Thanks