Interface has signal but doesn't work

[rainman]

I built an interface for my JR max-4 and when i try to use it, FMS detectsa signal but it doesn't do anything when i calibrate. I built the I/F from this [url=http://www.geocities.com/carrnutt69charger/JRcircuit.html

this]http://www.geocities.com/carrnutt69charger/JRcircuit.html

this[/url] is the design:

http://www.geocities.com/carrnutt69char ... ircuit.gif

[Carrnutt]

Hi jeff

i emailed you some things to try, but i also just thought it may even be the transmitter, unlikely but possible, have you used the trainer port before?

[rainman]

i figured it out. i had to disable interupt sharing on my sound blaster sound card. it works great now!