You can find them with the ID printed on the PCB of the PSU,

Change the small electrolytic caps under HS1 (heat sink1) and C6 just above.

C36 = 100 microF 25V - 105°
C31 = 10microF 50V - 105°
C38 = 1microF 50V - 105°
C23 = 47microF 25 - 105°
C6 = 1 microF 50V - 105°

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