Kyocera KM1820

Error Code:

Code: C0220
Description: Communication problem between the main PWB and operation PWB
• There is no reply after 20 retries at communication.
Causes: Poor contact in the connector terminals. Defective main PWB or operation PWB.
Remedy: Check the connection of connectors YC13 on the main PWB and YC3 on the operation PWB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PWB or operation PWB and check for correct operation.

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