My TV set (Oceanic with Nokia Eurostereo 2B-F chassis) has the
following problem:
When I turn it on, nothing on screen, got only the standby (-/--) lit.
When I try to change the program canal (with the front pushbutton),
the standby led changed to 1 (for example), then I get horizontal line
on screen which dissapear immediately and the SAT R led starts to
blink.

I think I have vertical deflector problem and think of changing the
vertical IC (TDA8170). Before changing this IC, should I look at other
components (I don't have the schematics), or can you give me repair
tips?

Thanks,