I have a growing collection of Telex BP-1000 and some misc. Clearcom belt pack units that don't work any more. I've tinkered with them a bit checking cables inside and so forth, but most don't pass on communications anymore. My technical knowledge of these involves opening them up, check wires (easy), and then check the circuit board (yep...still there...nothing else I can do...). The school I work for has no desire to pay to repair them, and a quote from a vendor puts shipping and diagnostics at the factory at about half the cost of replacement. So.... If it's not an obvious problem (loose cable, visibly physically broken component), is it worth repairing these through the manufacturer, or should I save the hassle and just replace them? I'm curious what those of you with more experience might think.