Search found 4 matches

by rabinkin
July 29th, 2011, 9:59 am
Forum: Indoor Rowers
Topic: Broken PM2 monitor
Replies: 8
Views: 15715

Re: Broken PM2 monitor

Yeah, the PM2 is just 2 layers, and the spacing is still such that you can work on it with a soldering iron. I haven't done any soldering since grad school - 13 years ago now. It was a walk down memory lane. I imagine the PM2 board was designed in the early 90's - a pleasure to work on!

Dan
by rabinkin
July 28th, 2011, 11:24 am
Forum: Indoor Rowers
Topic: Broken PM2 monitor
Replies: 8
Views: 15715

Re: Broken PM2 monitor

Carl, Thanks for the advice. I got the PM2 fixed. We'll see how long it stays fixed - I'm worried about the the remaining battery acid crystals somehow doing more damage - but it's working like a champ for now. I replaced one surface mount resistor, and soldered in about 5 wirewrap wires across trac...
by rabinkin
July 26th, 2011, 12:08 pm
Forum: Indoor Rowers
Topic: Broken PM2 monitor
Replies: 8
Views: 15715

Re: Broken PM2 monitor

Will,

I was sent here by the folks at concept2, specifically they said that Carl Watts might have some info for us... Where are you Carl?

Thanks much,

Dan
by rabinkin
July 26th, 2011, 10:33 am
Forum: Indoor Rowers
Topic: Broken PM2 monitor
Replies: 8
Views: 15715

Broken PM2 monitor

I have a CII Model C with a PM2 monitor which failed. The batteries leaked, and caused some PCB erosion (seems like a not-uncommon occurance) around the battery leads. It looks like R24 is eroded away, and a one of the traces from the battery leads is exposed and cut. Does anyone have a schematic fo...