FAQs
What steps are needed to replace the prom chip in the Gemini GEM-P816, GEM-P1632, GEM-P1664, GEM-P3200, GEM-P9600 and GEM-X255 series control panels?
Replace the prom chip as follows:
1. Launch PCD-Windows Quickloader software and upload all panel programming, including Dealer Programming, Descriptions and User data.
2. Power down the control panel completely (disconnect battery, then remove AC).
3. Use a prom removal tool (recommended) or a flat blade screwdriver to carefully remove the old prom from its socket.
4. Align the "dots" that appear on the lower left corner of the control panel motherboard socket with the dots on the prom chip label. Without bending any pins, carefully insert the chip pins into the socket and gently push the prom chip until fully seated.
5. Power the control panel (connect AC, then connect the battery).
6. Use Keypad Configuration Mode (also called Direct Address Programming) to "cold start" the control panel using the specific "cold start" address:
- For the GEM-P816, GEM-P1632, GEM-P1664: V8-10 is 1198; V30+ is 2286
- For the GEM-P3200, GEM-P9600, GEM-X255: V9-60 is 4093
Press the keypad ON/OFF (or ENTER) button and listen for a single beep. This beep confirms that the "cold start" process was performed successfully.
7. Press RESET repeatedly to "back out" of Keypad Configuration Mode. An E-09 trouble will be displayed on the keypad. This trouble indication is further confirmation that the "cold start" process was performed successfully
8. Launch PCD-Windows Quickloader software and re-download your program back to the control panel.
Finished! Your control panel is fully up-to-date and is ready to be put back into service.