Communication Interface Failure; Check Source Failure; Table 3-5 Communication Interface Failure Troubleshooting - Keysight 8990B Service Manual

3 Troubleshooting Guide

Communication Interface Failure

Table 3-5 Communication interface failure troubleshooting
Type of communication
LAN
USB 2.0

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)
70
Debug tip
Ensure that the connector is not damaged PPMC assembly
Ensure that the connector is not damaged PPMC assembly
Possible faul t
Keysight 8990B Service Guide