The SC3100i Radio Communicator may be manually reset/initialized. The reset/initialize function is performed by a sequence involving momentarily shorting pins #1 and #2 on the JP-1 CPU RST Header. The JP-1 Header is located on the main SC3100i circuit board and requires disassembly of the SC3100i Radio Communicator
Solution
*NOTE - The following procedure will erase all the programmed data in the CPU with the exception of the CPU serial number.
To manually initialize the SC3100 Radio Communicator:
1. Remove the auxiliary power source from the SC3100. Power Off.
2. Loosen the 4 retaining screws on the SC3100 panel cover and remove the cover.
3. Loosen and remove the screws and battery mounting shelf, exposing the main SC3100 circuit board.
4. Short the 2 pins on the JP-1 Header together. Keep the short in place.
5. Apply the auxiliary power DC power source to the SC3100i. Power On. This step will initialize the CPU. The System Status LED will blink red three (3) times, pause, and then repeat. This indicates that all of the Parameter EEPROM Memory, in the CPU, has been erased.
6. Remove the short between the 2 pins on the JP-1 Header.
7. Remove the auxiliary power from the SC3100. Power Off.
8. Replace the SC3100 battery mounting shelf, panel cover and tighten four retaining screws.
9. Apply auxiliary power to the SC3100. Power On. This step will initiate a system startup. The SC3100i will behave exactly like a brand new unit
