Re: HP8753C Source Pretune after YIG replacement
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Are you sure the YIG is dead? How do you know? I suggest you don't adjust anything until you know what the problem is. My method of troubleshooting is to go through the adjustments procedure but WITHOUT ADJUSTING ANYTHING. Anything way off indicates the?problem area. Often a failure in a closed loop. Finding a failure in a closed loop can be tricky and requires a knowledge?of the?circuit function.? When you have repaired the problem then you can do the adjustments. Making adjustments without repairing the problem just makes new problems and it will be much more difficult to identify the fault. Many HP problems are due to power supply failure.
I have a dead YIG (5086-7473) in the source of an HP8753C that I am replacing.
The manual says to do the procedure for setting the 'source pretune constants correction'.?
The section on setting the 'source default correction constants' says that this must be done before the source pretune; however, this will require me to set the 'RF Output Power Correction Constants' and I do not have the equipment for this step (HPIB power meter).
Since I'm just changing the YIG and not the whole source block, do I really need to reset all the souce default CCs? Can I just do the?'source pretune constants correction'?
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