I'm in the middle of recapping my IIcx and have run into a bit of a problem: are those two 10uF caps not polarised? There's no polarity sign on the silkscreen and the white square (where the cap goes) doesn't have any chamfered edges which usually indicates the positive terminal.

After checking for ground continuity it appears that the two 10uF caps seem to be mounted the other way round compared to the 47uF caps C8-C11.

Any help / clarification would be much appreciated.

Thanks!

Ps: the Mouser link below for the 10uF is for a polarised cap, so I guess it must be a polarised one.