VT220 symptom

[9000 VAX]

> Most likely problem: your flyback shorted out.
> 
> DEC used lousy flyback transformers, and they were always my
> biggest problem with all the VT terminals. They would short
> out (cracking the ceramic shell and oozing black goo that would
> then harden), and often taking out a driver transister too.
> 
> You can repair this problem with a new flyback (probably
> going to be hard to find), and a new transister.  Been there,
> done that (many times), got the T-shirt.
 
Thank you. Maybe it is easier to buy another VT220 for $5. I will
leave the faulty one alone for a while.

vax, 9000