I have a DDS tape drive. When plugged in, none of the LEDs come on. It is supposed to do a self-test. Next to the power socket are two rectangular things approximately 5x2x2 mm. I assume they are fuses, because when I put a voltmeter on the tracks, one is passing 12 V, but there is no 5 V on the other. I have seen "nano" and "pico" PCB fuses before, but these things are absurdly small. How could you possibly replace one? I guess it really is a throw-away item. I think they are no longer made, but "new old stock" is $1000.
- posted
5 years ago