Hello All, The club I belong to has a couple of LH-90s that all have a problem with the throttle cable jack. It seems that the jack is worn out due to constant use and now doesn't always hold the throttle cable in tightly. This causes the LH-90 to lose it's connection to the system and also frustration on the part of the member who is operating at the time. I've found the cable pin-outs for both the DIN plug as well as the jack but I can't seem to find a process for removing the LH-90 knob so we can get at the other side of the throttle controller board to remove the jack. Is there a screw on the throat of the throttle knob I'm missing or is the circular black rotating piece of plastic a screw that someone has messed up (therefore making it necessary to replace the screw after removing the knob)? Any help as well as tips/tricks would be appreciated. Thanks, Chris Platte Valley & Western Model Railroad Club Basement of Denver's Union Station www.PVWRR.org