Teac CT-M711 Vertical Collapse

[palace]

Greetings

I have the list model above and was wondering if anyone else has had the same problem. I have replaced a few caps and checked various resistors without luck. I think it used to have fine white lines at the top before the collapse which is why I checked the caps. It may be the IC but I don't have a circuit to check it out.

Any help would be appreciated
Cheers