308C Excavator Electrical and Electronic System – Radio Does Not Sound – Troubleshoot

Problem: The radio does not sound.

Solution: Check that the following connectors and components are connected properly: “CONN 2”, “CONN 13”, “CONN 14”, “CONN 21”, “CONN 33” and “CONN 37”. If the problem still exists, use the following procedure to troubleshoot the system.

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Schematic for “Radio Does Not Activate” and “Radio Does Not Sound”