Philips K9 chassis with sensor and delta crt, horizontal problem.

[Mroldtube]

Hello, I have a problem on a Philips K9 chassis with sensor and delta crt of first '70s.
After some time that the tv is turn on, picture start to move in the angles and left and right side of crt, I have found that if I put ice spray in the zone with AD162 and BC148 transistor the problem disappear, I had already change AD162 without results, anyone have had the same problem?
Thanks a lot!
Bye
MrOldtuberadio