PDP resistance
 

Could someone do us a favor and measure the resistance between the + and - terminals on a PDP? Our practice board is 77 ohms. We did have a wiring issue and popped some breakers, worried the board is toast. I know I measured each terminal to chassis on the comp bot before bag and they were fine, think I had several hundred k + to - but not sure. Don't have a 3rd PDP to check.

Re: PDP resistance
 

We have two out of bag PDPs. I'll check our resistance on Monday when I next get in the shop.

Re: PDP resistance
 

Do you have any fuses in the PDP? It may be possible that metal shavings are somehow shorting the PDP somewhere. 77 ohms is way too low of a resistance between supply rails. Keep us updated!

Re: PDP resistance
 

All breakers/fuses out, all wires disconnected. I opened it up and found a hairline crack in the solder mask over one of the power traces of a circuit that popped a breaker. Looks a little bulged, I can see the copper. Other side of pcb is fine. I'm guessing we're shorting to the ground plane underneath. I think she's dead Jim.

Re: PDP resistance
 

I get infinity, but I only went up to the MOhm range.