Hi Jerry,
i am using the amateurradiokits.in enclosure, which comes with some extra items to wire up connections, one of which is a three pin connector for volume. What happened was that the red and black wires on the 12v power supply to the board were reversed, maybe 15 seconds of power supplied before I cut it.
i adjusted the contrast and the display is working and shows the frequency, although the encoder doesn¡¯t seem to change the frequency. I am going to disassembly, check all of the solder joints and see if I can see any obvious visible damage to any components. Right now, I don¡¯t see any, other than my on/off switch, which needs to be replaced since I need to hold it in to maintain the power on to the unit.
