I did some poking of the pins in yellow. Confirmed means the connections listed are correct and not confirmed means they are not connected.

Confirmed

H2 to A2

G13 to C25

H13 to C26

L3 to C1

H2 to A2

Not Confirmed

K1 to C27

G1 to C2

G12 to B23 (connection found at C12)