![]() ![]() Some eagle eyed readers will notice that I pealed off the Radioddity logo, because I wanted to see if anything was underneath. The trickiest thing when re-assembling the radio is re-inserting the ribbon cable and then pushing the black part of the connector across so that it crimps the ribbon in place.īut I’m becoming a dab hand at doing this as I’ve repaired server GD-77’s for members of the local radio club, where they received GD-77s where the ribbon cable was not securely clipped or the cable was not pushed in far enough, so that over time the display became partially disconnected. To detach the ribbon cable, you have to separate the black part of the connector from the white part, using a small flat blade screwdriver. The white and black connector on the left in the photo is for the flexible ribbon cable for the display / keypad PCB which screwed to the front of the radio. The 2 obvious solder pads just in from the 2.5mm jack socket are the speaker connections, which I have temporarily unsoldered as the wires to the speaker are very short. Taking the GD-77 this far apart is relatively easy, as its actually only held together by 2 screws near the base of the radio, and also by the 2 ring nut’s around the SMA connector and the volume / on/ off knob. To prevent the wires either breaking off where they are soldered or worse, pulling the pads off the PCB (which is a common problem), I have used hot glue to secure the wires close to where they are soldered to the PCB Inside the radio, the wires are soldered on 4 pads on the back of the main PCB, roughly in the area between the # and 0 buttons on the keypad. I wanted to connect a hardware debugger into another of my Radioddity GD-77s, but didn’t want to drill a hole in the side like I did on one of the radios…īut I then realised that the rubber protector that goes over the 2 jack sockets in the side of the radio, can be removed, and this gives a handy hole, through which I can feed the Serial Wire Debug wires. ![]()
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