Tonight is a first for me. I recently picked up a beige v2.2 console and it does not power up.
Aside from a power supply with a red LED shoved back onto itself (which gave me a good chuckle,) I found two leaked capacitors: a purple 100μF 16V to the bottom-left of the CPU, and one of the two 100μF 16V next to the VDP.
These are axials and I do not have radials with long enough leads on-hand to replace them so I cannot be sure these are actually the problem, but they certainly represent a problem.
I looked around the board and found these electrolytic capacitors:
3x 100μF 16V
4x 22μF 25V
1x 10μF 35V
and one which has a value I cannot see but looks like one of the 22μF 25V. Note none of the Nichicons, the 22s and 10s, have leaked.