Hi community,
I'd like to share something with you, maybe it'll be helpful for repairs in the future.
Today I had an EDM-030 board in for repair with a 12V short. Turned out that a mosfet blew open (see picture, the one in the middle). I changed that only to find out that the short was still there. A VRM got burned as well. Lucky for me it didn't kill the APU. Changed the VRM and the PS5 came back to live. After testing i realised that all 3 USB-A Ports worked fine but as soon as I insert a device into the front USB-C Port i got the "Too many USB-devices" on screen. Even more, sometimes it displayed the message without inserting a device into the port.
I exchanged the USB chip and the chip beside this one (don't know if it's for power management or maybe firmware?) but this didn't fix it.
Dug a little deeper and found that the power switch driver (AF01, see picture down left) was faulty as well. The 3 topright pins read only about 90 ohms while a donor was at roughly 45-50 kohms. Exchanged the driver and USB-C came back to live and no more "Too many USB devices" message anymore.
Hope this helps you guys in the future.
Cheers
I'd like to share something with you, maybe it'll be helpful for repairs in the future.
Today I had an EDM-030 board in for repair with a 12V short. Turned out that a mosfet blew open (see picture, the one in the middle). I changed that only to find out that the short was still there. A VRM got burned as well. Lucky for me it didn't kill the APU. Changed the VRM and the PS5 came back to live. After testing i realised that all 3 USB-A Ports worked fine but as soon as I insert a device into the front USB-C Port i got the "Too many USB-devices" on screen. Even more, sometimes it displayed the message without inserting a device into the port.
I exchanged the USB chip and the chip beside this one (don't know if it's for power management or maybe firmware?) but this didn't fix it.
Dug a little deeper and found that the power switch driver (AF01, see picture down left) was faulty as well. The 3 topright pins read only about 90 ohms while a donor was at roughly 45-50 kohms. Exchanged the driver and USB-C came back to live and no more "Too many USB devices" message anymore.
Hope this helps you guys in the future.
Cheers
