1 Disconnect the battery and antenna.
2. Remove the three case screws and two battery plate screws.
3. Lift front panel from radio. Do not disconnect flex cables.
4. Cut the GREEN JUMPER WIRE, located on left side of the CPU.
5. Remove the diode, (see drawing)
6. Reassemble the radio.
7. RESET the CPU. Press and hold the M Key while turning on the radio.