In R&D of the receivers possible impact of powerful electromagnetic radiation is taken into account. I think temporary fault under the influence of powerful radiation is possible, but if radiation is turned off, electronic device restores (if not, probably it is due to bad design or production). It's like to look at bright light. Danger to a crew certainly exists, comparison to the microwave oven is correct. Note, for example that cockpit on AWACS, A-50 are covered with conductive coating. This is for protection from radiation of own radar.