HP 8593A 22 GHZ Spectrum Analyzer - Distorted signal view after self-calibration

[John_ITIC]

Hello. The troubles continue with my Ebay-bought 8593A. It appeared to work well until I ran the self-calibration. Afterwards, the signal appears distorted (both cal signal and from external siggen). This happens even with the calibration corrections turned off. I went through the 8593E service manual (none found for the 8593A) and I'm currently on step 5 in the adjustments procedures section (5. Crystal and LC Bandwidth Filter). I made the crystal shorts and got stuck at the beginning because the signal doesn't look symmetrical like in Figure 2-9.

I have attached the section from the service manual with the 2-9 reference picture. Also attached is my SAs distorted signal view.

Has anyone seen anything similar in the past? Any idea where to start looking?

Thanks,
/John.

[John_ITIC]

XTAL short locations attached