On the site it says:
Apply power to the module(core) after all parts except the PIC and the optocoupler are mounted. Check the voltage levels between the most important pins with a multimeter (analog or digital doesn’t matter) before plugging the PIC and the 6N138 into the socket:
IC1:MCLR(1) - IC1:Vss(12) = 5V
IC1:Vdd(11) - IC1:Vss(12) = 5V
IC1:Vdd(32) - IC1:Vss(31) = 5V
IC2(8) - IC2:(5) = 5V
Could someone tell me which pins these correspond to?
I mean,is it saying to check voltage between pin1 & pin 12,pin 11 & pin 12,etc…?If so,how do I determine which pin is #1? With the chip label readable,is pin #1 on the bottom left and pin #21 the top left? And,is IC2 the optocoupler?(I am obviously pretty new to electronics).