U2000 Series Operating and Service Guide xv
4 Service
General Information 58
• Cleaning 58
• Connector Cleaning 58
Performance Test 59
• Standing Wave Ratio (SWR) and Reflection Coefficient (Rho) Performance Test 59
Replaceable Parts 62
Service 64
Troubleshoo ting 64
Repairing a Defective Sensor 64
Disassembly and Reassembly Procedure 65
Attenuator Disassembly and Reassembly Procedure for U2000B and U2001B 67
5 Appendix
Appendix A: Zero Set, Zero Drift, and Measurement Noise 70