Quote Originally Posted by TomKerekes View Post
Hi Gunmachinist,

If everything is disconnected from KFLOP, J3 installed, and USB is connected, then KFLOP's LEDs should flash. If not then KFLOP has likely been damaged (assuming the PC USB port and USB cable are good).

If the LEDs do not flash you might check the +5V on KFLOP with a Voltmeter. J9 is one convenient place to check. It should read between 4.75 and 5.25V.
J9? Kflop connector pinouts don't show a J9.