Question about Uniden PC68XL (40 Channels) 2-Way Radio
Has a dead short in it, trips my power supply, components look good visually
Make sure you're connecting the radio with the proper polarity. There is a protection diode inside that will cause the power supply fuse to blow or go into overcurrent shutdown if you have + and - reversed. It's also possible this diode has been shorted. You can't tell by looking at electronic components (unless they are physically damaged) whether they are good. An ohmmeter can be used to test for shorted diodes. Look at the board where the power leads connect for the diode.
Posted on Mar 22, 2010
Testimonial: "thank you, bad diode replaced and now works fine"
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