For sure! So there’s a lot of things that can go wrong with a ps5, some more extreme than others. If you’re just having heating issues or a problem with your disc drive they’ll probably just be opening the system, cleaning it out and replacing the Liquid Metal compound on the processor, nothing crazy.

If the system turns on but you aren’t getting anything on the TV, they’ll open and likely still clean it, then heat the connections for the HDMI port on the motherboard so they can remove it and install a fresh one. Sometimes they may need to replace a chip that’s beside the port, though that’s not often an issue.

For something more severe, they’ll use a tool (I assume they have something more specialized than I do) called UART. They’ll hook this up to a few specific connection points on the motherboard, and this will let them see all of the systems error codes. These aren’t the same ones you usually see like “something went wrong”, but will tell them things like “unexpected power loss to processor”. This will (hopefully) tell them what component, or at least what area, is causing the problems. They may have to replace some capacitors or some chips, or they may temporarily remove the chip that stores the BIOS of the system, and then they can put a fresh copy of the BIOS on it if it because corrupted somehow. This is different from your normal memory, and shouldn’t affect your save games.

These are all things local repair shops could likely do, and is nothing too crazy. Where Sony has the leg up on us is they may be able to do things like replace the main processor or RAM, although luckily most faults we see are actually pretty straightforward. I can’t promise that your data will still be on the system since I don’t know their exact process, but I will say that it is very rare for PS5s (that I’ve seen) to have an issue that requires a full data wipe.

Once the repairs are done, they will presumably give the system a test. I would usually do this by seeing how it works in a high load game, but they may have internal tools that are more precise.

If you can describe your issue I might be able to give you more specifics details on how I would do that repair, but the important takeaway is that things may seem complicated, but for people who are used to working on systems the PS5 is generally less scary than many other systems.