Hello all,
I've been troubleshooting my Series I Boss 6 that keeps blowing the X-axis final drive transistors, and I tested the voltage coming from the power supply. The manual says to check the output of the -12V UR terminal. We went from there to the GND test point. We also went from the -12V UR test point to the +12V UR, and from the -12V UR test point to frame ground and got the same result on each test of around 10 volts. The manual said that we should have between 21-28.5 V measuring from the -12V UR test point. It doesn't say, however, what to place the other probe on.
Can someone tell me where the other probe goes, and what may be causing this low voltage? Thanks very much!!
Ian |