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HP 8656B Signal Generator 1KHz tone at 993Hz — Adjustment Location?

CbRadiosPRONTO

Well-Known Member
Mar 21, 2014
416
140
73
USA
www.cradiospronto.com
The modulated 1000Hz tone is 992 Hz. The service manual is like 400 pages. I do not want to do a real calibration by the book. Id like, simply, to turn a pot, if possible. It generates an accurate RF signal. It’s just the tone that’s off.

Anyone familiar enough to point me in the direction of an adjustment pot?

Note: As you can see, my counters agree within 1,000th of a Hz reading the Rigol and the HP.
 

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