Hi all,
I have twin motored bike, with twin PhaseRunners & twin CA3-WP and MFSwitches, yesterday I was carrying out some tests to try to find the root of a PAS system problem that I have, this involved connecting/disconnecting/swapping throttle, PAS & brake connectors about a bit. I had the front system turned off, for some time, whilst concentrating on the rear system & was getting to the bottom of the PAS system problem, but when I tried to turn the front system back on, I got nothing from the CA. My PhaseRunners are enclosed in a case, so I could not easily see whether or not that was powering up & as it was getting late, I decided to leave it until today.
Having opened up the case, so that I could see what was going on with the PhaseRunner this morning, I could see that the MFSwitch was still managing to turn it on & off OK, so I checked some voltages on the CA’s connectors; I am getting nothing on the 10v PAS supply & 0.27 volts on the various 5v supplies. I am not aware of having done wrong, but assuming that I did, the only thing that I can think that I might have done, is got the wrong pin in the wrong place whilst connecting the PAS connector, thus shorting the 10v supply to ground.
I’ve had a look around on here & I found this thread about shorting out the 10v supply and frying the reverse protection diode; https://endless-sphere.com/forums/viewtopic.php?f=4&t=37964&start=2600#p992104, but the images of the circuit board are of a revision 2 board, mine is different, being revision 3.
So the questions are:
1) If I have cooked the 10v reverse protection diode, does it also take out the 5v supply & also the display (getting nothing here, no characters & no backlight)?
2) Anyone got any idea where the reverse protection diode is on a revision 3 circuit board?
I have twin motored bike, with twin PhaseRunners & twin CA3-WP and MFSwitches, yesterday I was carrying out some tests to try to find the root of a PAS system problem that I have, this involved connecting/disconnecting/swapping throttle, PAS & brake connectors about a bit. I had the front system turned off, for some time, whilst concentrating on the rear system & was getting to the bottom of the PAS system problem, but when I tried to turn the front system back on, I got nothing from the CA. My PhaseRunners are enclosed in a case, so I could not easily see whether or not that was powering up & as it was getting late, I decided to leave it until today.
Having opened up the case, so that I could see what was going on with the PhaseRunner this morning, I could see that the MFSwitch was still managing to turn it on & off OK, so I checked some voltages on the CA’s connectors; I am getting nothing on the 10v PAS supply & 0.27 volts on the various 5v supplies. I am not aware of having done wrong, but assuming that I did, the only thing that I can think that I might have done, is got the wrong pin in the wrong place whilst connecting the PAS connector, thus shorting the 10v supply to ground.
I’ve had a look around on here & I found this thread about shorting out the 10v supply and frying the reverse protection diode; https://endless-sphere.com/forums/viewtopic.php?f=4&t=37964&start=2600#p992104, but the images of the circuit board are of a revision 2 board, mine is different, being revision 3.
So the questions are:
1) If I have cooked the 10v reverse protection diode, does it also take out the 5v supply & also the display (getting nothing here, no characters & no backlight)?
2) Anyone got any idea where the reverse protection diode is on a revision 3 circuit board?