Hello all,
I'm using a Yaesu VX-3R for a school project. To power the radio for testing purposes, a power supply simulating batteries and a custom pcb to condition the output power is used. The way the radio was connected to the custom pcb was by clipping onto the the prongs where the battery metal contact (+ -) pads push against the stock battery. The photo below show this.
After some time ( maybe like a month or lees) it stopped Tx/Rx when connected using the mic/sp port. However it does Tx/Rx when using the ppt button. One thing that did happen a few times was a short circuit across the metal frame of the radio because of sloppy connections. Not sure if that is to blame. We have used another radio to confirm that the rest of the setup is working.
Any ideas why the mic/sp port would stop working?
I'm using a Yaesu VX-3R for a school project. To power the radio for testing purposes, a power supply simulating batteries and a custom pcb to condition the output power is used. The way the radio was connected to the custom pcb was by clipping onto the the prongs where the battery metal contact (+ -) pads push against the stock battery. The photo below show this.
After some time ( maybe like a month or lees) it stopped Tx/Rx when connected using the mic/sp port. However it does Tx/Rx when using the ppt button. One thing that did happen a few times was a short circuit across the metal frame of the radio because of sloppy connections. Not sure if that is to blame. We have used another radio to confirm that the rest of the setup is working.
Any ideas why the mic/sp port would stop working?