4-24 Service Guide E8364-90026
Troubleshooting PNA Series Microwave Network Analyzers
Rear Panel Troubleshooting E8362B, E8363B, E8364B
Troubleshooting Systems with Controllers 
Passing the preceding test indicates that the analyzer's peripheral functions are operating 
normally. Therefore, if the analyzer has not been operating properly with an external 
controller, check the following:
• The GPIB interface hardware is incorrectly installed or not operational. (Refer to the 
embedded help in your analyzer.)
• The programming syntax is incorrect. (Refer to the embedded help in your analyzer.)