SHIELD-EKG-EMG and OLIMEXINO-328

[Anamau85]

Today i got some af olimex.SHIELD-EKG-EMG and OLIMEXINO-328.
in the manual :
4.1 SHIELD-EKG-EMG and OLIMEXINO-328
In this example we use OLIMEXINO-328; SHIELD-EKG-EMG; ........
0. IMPORTANT! Before starting you have to prepare the OLIMEXINO-328 board by
removing its wire between the R6 pads (R6 is not mounted).

it looks like:
o-- ? --o   
o--c16--o
o--c15--o

Also by providing screenshot, could you assist me on doing that? Could you describe all the steps i need to follow to manage this issue?
one question more If i had arduino uno board should i follow this step?
Thanks

[LubOlimex]

Just make a tiny cut with a sharp and thin tool between the two pads of R6. There is a trace between the pads. It might seem that there is no connection but there is a trace that connects the pads. Else the board would provide reference voltage to shield and we want the shield to generate the reference. The reference voltage of OLIMEXINO-328 is 3.3V and the shield voltage is 3.0V - this slight over-voltage might lower the life of the components on the shield.

After the wire at R6 of OLIMEXINO-328 had been disconnected, close REF_E on the shield (if you use more than one shield keep REF_E open on all others except for the first).

Best regards,
Lub/OLIMEX