SC 819 ERROR CODE || SOLUTION || RICOH 4000 5000 4001 5001 || GUARANTEED

SC 819 error code in Ricoh Machines came up due to
1. System Program Defective
2. Controller Board Defective
3. Optional Board Defective
4. Replace Controller Firmware
My Ricoh Machine 4000 came up with this error and remains on the panel whenever switched on the machine. Try every thing change ram, clean ram, change hard disk, but didnt get any clue , then at the end they guy in the video help me out ........... to get rid of this code must watch this video full and comment at the end, do subscribe my channel.
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