Mk194

Hi
I’m don’t understand J1 connection
Thanks…

J1 is just a bridge because it wasn’t possible to put the trace.

A dual sided pcb cost a lot more then a single sided pcb.

anybody have clear picture of MK194 solder side. because I dont understand solder connection.

J1 is a jumper.
They had to put that in because you can not cross traces so they put in J1 to run it on the top side of the board.