79
Agilent 34980A Multifunction Switch/Measure Unit
Service Guide
Agilent Technologies
4
Troubleshooting and Diagnostics
Troubleshooting Hints 80
Power Supply 81
Product Firmware Updates 81
Instrument Errors 82
Error Numbers 84
Isolate a Problem with a Plug-In Module 92
Relay and FET Replacement 93
34921A 40-Channel Armature Mult
iplexer with Low Th
ermal
Offset 94
34922A 70-Channel Armature Multiplexer 96
34923A 40/80-Channel Reed Multipl
exer 98
34924A 70-Channel Reed Multipl
exer 100
34925A 40/80-Channel Optically-Isolated FET Multiplexer 10
2
34931A Dual 4x8 Armature Matrix 104
34932A Dual 4x16 Armature Matrix 106
34933A Dual/Quad 4x8 Reed Matrix 109
34937A 32-Channel GP Switch 113
34938A 20-Channel High-Current GP Switch 114