Looking at the schematic, this is a switching FET used with the power switch. R34 is a k resistor is acting as a weak pull-up to the gate. I believe the failed part is in the SOT form factor, based on its dimensions. It measures about 5mm wide by 2. However, it's wider than it should be due to the crack. Sure 'nuff, SOT should be about 4. Looking at the specs, it can handle 12 volts.
Not sure about the current draw, but it's worth a test. I figured I might wire in the FET with some wire-wrap wire or something, just as a rudimentary test to see if anything else was broken. See the illustration below. So, it looks like replacing this FET will bring the radio back online. Taking a look at the Alinco web site, you have to call them with part numbers in hand, and speak to a human eww!
I'll go that route, since I'm ordering from Digi-Key regularly anyway. Digi-Key substitute: ND. I'll update this blog when I substitute the part and confirm it works OK. I went ahead and did an alignment on the radio, since I had it open on my bench, and I had been looking for an excuse to test my new to me Service Monitor. Google Calendar. Event Preview. Pin mic alinco drdx manual. Follow Group.
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Tuning steps? Receiver system? Image rejection? Audio output? W, Low:? Electrical Power requirements Form factor Mobile Manufactured Between 19xx and 19xx.
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