VSA OFF Switch Does Not Work (VSA Cannot Be Turned OFF)

VSA OFF switch does not work (VSA cannot be turned OFF)

Diagnostic Procedure:

1. Symptom troubleshooting. VSA OFF Switch Does Not Work (VSA Can Not Be Turned OFF)

2. Update the VSA modulator-control unit if it does not have the latest software, Testing and Inspection or substitute a known-good VSA modulator-control unit, Service and Repair then retest. If it is OK, the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the original VSA modulator-control unit. Service and Repair