3
Troubleshooting Guide
70
Keysight 8990B Service Guide
Communication Interface Failure
Check Source Failure
The possible faults if the sensor check source of the peak power analyzer is not
functioning are as follows.
– Check source board (high probability)
– Main board (low probability)
Table 3-5
Communication interface failure troubleshooting
Type of communication
Debug tip
Possible fault
LAN
Ensure that the connector is not damaged PPMC assembly
USB 2.0
Ensure that the connector is not damaged PPMC assembly
Содержание 8990B
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