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Tektronix 2755P Analyzer

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oe7dbhnew:
Hi Guys

I have a thermal problem with my Tek2755P.
At some temperatures it works ok without any errors, and at other temperatures it gives the message:
Frequency control Failure        Tuning failure - 1ST LO   ( for span below 10MHz )
Error 7   Oscillator corrections are disabled   

Has anyone had a similar problem and successfully solved it ?
Which plug-in card or component caused the error ?     .....Can anyone help ?

It's annoying when something fails during the measuring process (usually at around 20°C ambient temperature),
then I have to either cool it down or heat it up to make it work again.

Vy 73 de OE7DBH
Darko

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