DayOff
Active member
Question for the PS gurus...
I have an ARII-02 PCB that's outputing 14v on the 5v line...sense mod is in place...everything else is outputting normal voltages. The adjustment on the AR2 barely makes any difference (maybe a hundredth of a volt)..and swapping the 2N3055 seems to not make a difference. Also swapped out the LM305...and TIP32...no change.
Is there any clever/scientific way to trace what's going on... perhaps removing something and seeing if voltage still appears (perhaps a shorted line?). Measuring another test point...etc?
It's driving me slowly insane as I'm reading 101 'shotgun all the parts' postings...and that's already been done...nothing's cooked. Some really great parts identification sites out there that have really good basic detail as well. I do have another AR2 board that's working fine and compared it, and everything is installed properly, nothing seems out of sorts.
Any ideass are appreciated...
Thanks
Pete
I have an ARII-02 PCB that's outputing 14v on the 5v line...sense mod is in place...everything else is outputting normal voltages. The adjustment on the AR2 barely makes any difference (maybe a hundredth of a volt)..and swapping the 2N3055 seems to not make a difference. Also swapped out the LM305...and TIP32...no change.
Is there any clever/scientific way to trace what's going on... perhaps removing something and seeing if voltage still appears (perhaps a shorted line?). Measuring another test point...etc?
It's driving me slowly insane as I'm reading 101 'shotgun all the parts' postings...and that's already been done...nothing's cooked. Some really great parts identification sites out there that have really good basic detail as well. I do have another AR2 board that's working fine and compared it, and everything is installed properly, nothing seems out of sorts.
Any ideass are appreciated...
Thanks
Pete