[Jackieflipflop]

Hi,
I'have the same problem. On mine, only PULSE mode isn't working (both no signal and led isn't blinking). The PWM mode is working (LED blinking correctly). With or without motor or solenoid connected, same problem.

Someone can help me? I can repair it but need to know ice component is defective.....

Best regards!

Hey guy38,

if PWM for you is working, then the issue is somewhere else.
Page 5 of the schematic is the one of interest:
https://koma-elektronik.com/new/wp-conte...matics.pdf

The section "CV pulse generator" is responsable to create PULSE output. this goes to the Mosfet Q1 that drives the Motors.
An advice should be to open the FK and visually inspect the unit. 
one component between Q11,Q12,Q13,Q14,Q15 or D10 could be damaged.
You can send a CV into the CV/TRIG and then you could proceed with your multimeter from there on and see where the signal stops to flow OR you can just swap all of them since they are all very cheap and standard components.
Up to you as you want to proceed. Swapping is fast, Troubleshooting with multimeter is fun!