Pity you did not persist as the solution is simple, just a dab with the soldering iron in a couple of places (see the pics in this thread) and job done. Or see e bay where some wag is selling the cure for 99p!!!! Most faults like this are not visible, but a hairline break will cause the unit not to work. I've dealt with many in my time (TV's radios etc.) and they never show up on a visual check.
What did you do with the old unit? Don't chuck it as you may be able to fix it anyway.