Specifications

1-31
Troubleshooting
Troubleshooting Assembly–Level Problems
102 Ext In Offset DAC and Switch
• Replace the A13 I/Q Multiplexer
103 Path 1 & 2 and Ext Out
• Replace the A13 I/Q Multiplexer
104 Path 1: Attenuators and Summing Amp
• Replace the A13 I/Q Multiplexer
105 Path 2: Attenuators and Summing Amp
• Replace the A13 I/Q Multiplexer
106 DC–Couple Mode, CW bias DAC, Course+Fine DAC
• Replace the A13 I/Q Multiplexer
107 Drift Canceller
• Replace the A13 I/Q Multiplexer
108 IQ Polarity Switch
• Replace the A13 I/Q Multiplexer
109 RMS to DC Converter
• Replace the A13 I/Q Multiplexer.