I've found a problem : the adapter was not wired correctly for 27C210 / 27C1024
This is how it's wired on the adapter

Pins 12 and 34 are not connected.
They should be connected to GND.
I've done the modification :

now the program can see the eprom, but there are still 2 inaccessible pins (contact has returned to 15).

I've tried with the second eprom, it does the same error.
So is there an other missing connection, or the problem comes from programmer ?