[amsat-bb] ARR preamp repair

Anybody ever try fixing an ARR P432VDG preamp yourself? I was recently given one that I suspect was transmitted into. Drawing more current than spec'd (45 mA vs. spec of 25), no S-meter increase when connected. Or am I better off just sending it in? ARR's website says most GaAsFET preamp repairs run around $22.50 plus shipping...

George, KA3HSW