Hp 8920a

Discussion in 'Wireless & RF Design' started by Cheslyn, Nov 28, 2013.

  1. Cheslyn

    Thread Starter New Member

    Jan 18, 2013
    4
    0
    Hey Guys

    I'm currently working on a Comms Monitor,it came in with an Max power at Ant. input and when I ran the RF diagnostics tests It failed showing Input assembly(low) and Spectrum Analyzer assembly(medium).I've open the unit up and removed the assembly and replaced some component at the Ant.input and the Duplex output on the assembly.I've also replaced the Tempreature sensor transitor and diode in the RF detector circuit on the assembly.When I switched the unit on again the Max power warning that it showed when I switched it on for the first time,was no more but the other failures is still there.
    If anyone can help it would be much appreciated.
     
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