[Drake] Troubleshooting R4 noise blanker

[Ka9p]

Halp! :)  My R4C blanker has stopped blankng, and a quick shot a fiddling with the adjustments hasn't caused it it work any better.....are there a few common failure modes of this thing I might look at first, or is this gonna be a several hour head scratcher?  Thanks, Scott
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/drake/attachments/20090108/1981f18c/attachment.html