HP8558B Versus HP182T Sweep Fail.

[hcapela]

Good year 2022 without the accursed bug.
Well there everyone

In April 2019 my HP8558B decided to let it do the sweep  Fig0 , I found that only with external sweep it worked, it was on the waiting list for a better analysis, however I was around the HP8116A and with external help I got there (well there Markl).
In December 2021, in a visual inspection of the HP8558B plugin, I found that some of the contacts (fingers) of the 4 switches were loose, and I thought it was here, and the novel that I summarize below began
Preliminary Notes: Understanding certain details implies access to the HP182T/C Service Manual.
I urge HP experts to speak up.

1st 2019 I lost the HP8558B scan Fig0
2nd 2021 I considered that the failure was due to lack of contact finger in the SW. Fig1 and Fig1.1 , ward work.
3rd mechanically fixing the fingers of the SW Fig2
4th Malfunction remains☹
5th Test of the switches all OK, with the help of a kit adapted from the IC card HP10529-20005 Fig3 and fig4.
6th Why not use my HP180C+HP1802 and HP1821A that is stopped !! fig5 , because I haven't used it before ☹
Test with the Main Frame HP180C and the HP8558B, after de-rusting the switches and adjusting, voilá HP8558B OK!!
7th Use 182T with HP1801 and HP1821 OFF, I confirm the failure is in the HP182T.
8th All voltages on HP182T OK.
9th Summary measurement of transistor and diode junctions (all?) OK
10º Measurement of HT -3KV †† and 19KV †† , result  +-2.9 and +-  18KV, OK
10th Use of two 1V 100 Hz sine wave generators for input on the HP1801A and the EXT INPUT sweep on the 180C
11º Results in a distorted Lissajous image by pressing FIND BEAM Fig6
12th With Intensity CW almost at MAX. clear image Lissajous Fig7
13th In sweep INT values of UNBLANKING GATE board A7 pin14 is -0.2V should be -0.7V
14th Output on board A7 ALT TRIGGER pin13 for Plug-in not detected?
15th UNBLANKING SIGNAL output values also in A7 pin w4, is between +20 and +75V when it should be between +42 and +92V  DC values, and is not a square signal.
16th I'm in a fish situation with is tail in the mouth.
Best regards
Bem Hajam