Trying to Fix Goodwill Junk PS4 (ADP 240AR) 

I would say that you need to focus on the 12V. If PFC is jumping to 400, it would seem that it is working correctly. IC151 is the IC that controls everything and if it doesn't detect the 12V it shuts it all down. There is something that is preventing your 12V out. Find the schematic and start working your way through the 12V circuit. Keep in mind, I am not an expert.

@@probablycantfixit6426 Thanks. Yes I found the schematic you were using, and I am going through it. In your power supply case. As you figured out, the feedback resistors set the pfc voltage. Those resistors have a high tolerance as they need to be exact. Once the pfc voltage is lower than it should, typically one of the feedback resistors have changed value. I am not sure yet on this ps4 psu model, but on the slims, you can force the pfc to run without enabling acdc sby with the 5v by injecting about 13v with a bench power supply. You DO NEED that isolation transformer to do so. Like you, I am not an expert, but I do enjoy trying to fix these consoles.

@@jonathansandiford4137 That is excellent information. You may not be an expert, but you seem to be very knowledgeable, and I appreciate the write up so others can learn from you.

@@probablycantfixit6426 I believe it's q41 on the slim psu. It gets triggered and then allows the 13~17v generated by that dap ic (dap041/dap046) depending on the model. When a psu presents with a fast shutdown, but the 5v stby is present until you try to activate the 12v, it's useful to bypass this ic, by injecting voltage on its output. Doing so allows you to bypass the various built in feedback protection circuits so you can figure out what's going on, and give yourself a direction to go. If the pfc doesn't run or reach the voltage required, then you can investigate the pfc. But the psu has to be powered by an isolation transformer. Usually you will see the pfc voltage on the bulk capacitors, and if you are lucky, you may also see your 12v, which may or may not be oscillating. It makes troubleshooting a bit easier as it allows you to probe the circuit while it's live.

@@jonathansandiford4137 I am probably don't comprehend part of the theory, but if Q41 failed, would that not interrupt VDD_SW1, which is needed to establish PFC_CTRL? It seems if that failed your PFC would never start.

Thank you.

Hello, and thanks for the pointers. Very much appreciated.

Hola pa, arreglaste varias fuentes? recibi una ps4 que tenia volado el integrado de los 5v, lo cambie pero no hubo caso. No parece haber otro componente reventado ni nada. Podes orientarme? Gracias

I would say that it is probably not normal but I don't have one to verify on. If you search on RU-vid for Toltec Merc, he has a lot of videos about repairing power supplies and you may find an answer there.

I would start with IC151 since it is common to both 5V SDBY and 12V. I am linking the schematic in video description.

He had probably like me just tin crack on R24.

I believe it happened 9ff screen

I suppose it is possible. You could also order a Power Supply to see, for certainty, if that is the issue. If you are talking about blowing hot air on the PS, then I am not sure if that will help the issue, but you can give it a try. There are a lot of people that say this or that is a bad idea, but it is more about whether you are willing to accept the risk of what you're doing. If you are careful and precise, then I say it is OK. If you learn from it, then all is good. If the 12V rail is not shorted, then it seems the power supply could be faulty.

gbatemp.net/attachments/adp-240ar-pdf.240917/

Hi from the US. Iraq is a beautiful place but alas, I will never get to see it again.

@@probablycantfixit6426 thought your. We’re military staff , that’s why I said what I said. , as civilian your welcomed in our country and our houses ♥️

Thanks. @@greatdrd