[Elecraft] Distinguishing KIO3 Pullups?

[Rick Tavan N6XI]

Is there an easy way to determine whether a KIO3 is a B model with pullup
resistors on the band data lines without pulling the rig and opening it up?

Since a recent change in band decoders, I've been troubled by
intermittently insufficient voltage to pull in my antenna relays and I'm
wondering if perhaps it originates with band data not being pulled up.

Thanks & 73,

/Rick

-- 
Rick Tavan N6XI
Truckee, CA