Arduino Nano Modifications
The resistors in the middle had to be removed because they connect the CH340 (or FT232) to the serial port on the Atmel ATmega processor. (Funny that Atmel was bought by Microchip who makes the PIC processors!) I still needed jumpers for debugging, and started with them on the surface mount pads, but they pulled off quickly. Now ithey're directly on the pins.