You have made a good start by cleaning the controls and doing some voltage
checks.

I would NOT try to align it at this stage. That's one of the last things
likely to be a serious problem, unless somebody gave the receiver to a child
with a screwdriver.

I would definitely replace the electrolytic capacitors. They are the most
failure-prone components in the radio. Until you are sure that the power
supply is healthy, it's pointless to try diagnosing more specific problems.

In my HQ-180AC, which I restored and then sold a few years ago, I don't
remember seeing any paper or plastic ("bumblebee") capacitors.

All of the small capacitors were ceramic or better, as I recall. Here is a
photo of the chassis when I got the set. It's possible that someone had been
there before me -- it has been a while.

http://www.antiqueradio.org/art/hamm04.jpg

In any case, I would not "shotgun" all of the small capacitors unless they
are paper or plastic. Ceramics can fail, but they are generally much more
reliable.

This article may help you identify different capacitor types:
http://antiqueradio.org/recap.htm .

After you replace the electrolytics, you can try the set again, and if the
problems persist, do more specific troubleshooting.

Regards,

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html