Today I performed the MD-380 Volume Control Modification for OpenRTX/M17 on one of my MD-380 radios.
This was to try to get the audio level improved for M17, after updating the radio with OpenRTX.
https://github.com/OpenRTX/OpenRTX/issues/266
I did the mod as described here:
https://github.com/travisgoodspeed/md380tools/issues/98
This will make the volume control work again after flashing the MD-380 with OpenRTX. Unfortunately the audio level did not improve – the max is still quite low. I guess we’ll have to wait untill the audio-path going through the HR_C5000 is implemented.
Thanks to EB4FBZ for the great explanation on how to do this;
Remove R341 (100K) and connect the signal to VOL_OUT (R253) using a 47K resistor and wrapping cable.
