Tektronix 465 no horizontal sweep

[Crambone]

I received a 465 that didn’t power on and found the Tantalum Cap in the HV section was shorted, I replaced and it now powers ON. While opened up I replaced all the electrolytic caps except the ones that are matched. I cleaned all switches and contact per some videos ie seen on how too do it properly, I used MG Alcohol so no residue would be left behind. The scope shows a nice crisp Dot and I can move fully vertical and horizontal with the controls. Im NOT seeing any Horizontal Sweep, I do see Vertical if I hook a probe up and touch the end with my finger. As I'm just learning electronics as a retirement hobby I’m no tech but willing to listen and learn. I see correct voltages on all the Test Points and was shocked actually how almost dead on they are. I was told elsewhere to check Q1224 for signal. Now I checked it for voltage and I’m seeing:
C 3.134Vdc
B nothing no signal on digital scope  -2.20mV
E -0.674 vdc
If I hook my Rigol DS1104Z to the center Base I’m not seeing anything, assuming it will pick up the Cigna in Auto?
I did find by mistake the A trigger switched wired wrong I believe as I was seeing 55vdc on the black wire coming off. I’ve attached a picture of what it looks like now with another yellow arrow showing where it was attached. I’m wondering if this black was a ground and feeding 55vdc if it could have caused this Horizontal Sweep issue? Possible it took something out?
I’m at your Mercy and looking for advice and where to start? 

[Crambone]

Video of issue I’m seeing:

https://youtu.be/uVUMY11D8t8

[med6753]

If there is no sweep signal at Q1224 as per TP78 in the manual then the issue is in the sweep logic further back. The manual gives excellent test points of the expected signals which your DSO should easily monitor.

If you don't have a decent copy of the manual go to Artek Manuals and order one. Make sure it's for the 465 and NOT the 465B. The nice thing about the Artek copies is that they are fully indexed, clear, and are complete.     

[james_s]

Stupid question, but are you sure it's not in XY mode? I've seen "broken" scopes sold cheap because of that in the past.

[Chris56000]

Hi!

I should add that unfortunately, I bought a 465B EARLY manual from Artek (070-2757-00) and unfortunately it was not up to their usual advertised quality standards, as some of the foldout pages were scanned in sections, the manual circuits were full of hand scribbled notes, crossings–out and blotches!

(I have contacted Dave about this!)

Chris Williams