CVR inop. No test.
Simple call-out for reset of "G Switch". The red light bulb was burnt out so it gave no indication of a switch problem.
A quick press did not reset it. It took about a five second hold-down.
There are still a ton of aircraft with this type of installation out there. The possibility of a "G Switch" being installed should always be considered before troubleshooting.
GII ATA 23-70 CVR
No print in Gulfstream WDM. A schematic is in AMM.