Hey guys, I have what should be a simple question concerning the transistors for the special solenoids.
My pop bumpers and slingshot kickers stopped working on Pinbot. The fuse at F4 is blowing as soon as the machine is turned on.
The coils and diodes all checked good, so I tested the TIP122's and got a bad reading of .084 volts on Q71. I'm assuming that is the culprit since it's not within .4 to .6 volts.
Now my main question here is, when I test the predriver 2N4401's, I get a good reading on one side of the transistor, but on the other side I get .275 volts on all six transistors. So are all six of those bad?
Thanks in advance.
My pop bumpers and slingshot kickers stopped working on Pinbot. The fuse at F4 is blowing as soon as the machine is turned on.
The coils and diodes all checked good, so I tested the TIP122's and got a bad reading of .084 volts on Q71. I'm assuming that is the culprit since it's not within .4 to .6 volts.
Now my main question here is, when I test the predriver 2N4401's, I get a good reading on one side of the transistor, but on the other side I get .275 volts on all six transistors. So are all six of those bad?
Thanks in advance.
