ESP is passing audio but has become unresponsive to changes made via CC-64

The ESP-88 powered up correctly and has been running for a while, audio is passing correctly but the ESP has become unreponsive to changes made via user controls such as the CC-64 Control Center.

There are a number of possible causes for this condition:

ESP-88 (v1.001 or later)

Not Applicable

Check the itegrity of all network connections and verify that the ethernet switch is functioning correctly. Connect a PC to the same network and use the ‘PING’ utility supplied with Microsoft Windows to verify that both the ESP and CC-64 are responding correctly.

Follow the links to diagnose and resolve incorrectly adjusted internal power supply or poor connection caused by PSU harness.

Issues caused by incorrectly adjusted power supply
Issues caused by power supply harness used on early ESPs