Help Needed for PSU Board Identification

[lisahamp871]

My almost 15 years old desktop PC decided it was about time not to power on anymore. I replaced the PSU with a spare one I had and it went back on so I guess it was it. Now I'd like to try to take a look at the old one that went bust but I'm having trouble in identifieing it. I've taken some pictures of the board but haven't been able to find the schematics or almost anything online, expect for the LC500H-12 itself, the inside board seems to not showup anything.



Any assistance in identifying the board or pointing me toward the right schematics would be greatly appreciated!

Thank you in advance for your help!

[CapLeaker]

Probably hard to find the right schematic for it. However you may look at the ICs get the data sheets.
For example: what PWM and how does the protection work?

Did you try to warm it up a little and then force start it? Observe exactly what the power supply does or doesn’t do, specifically when you start it. Does it try to start at all, or starts for a split second and then shuts down etc. You need to figure out on which side of the power supply the problem is. Is the problem on the primary or on the secondary side?

I suggest you start noting down all the important ICs. Could be anything at this point. How did the PSU die?

[R_J]

I found the same post on another site, do what they said, check if you have standby voltage