CTC187 R.C.A.
 

Hi!
I have this R.C.A. CTC 187 that has no channels above 50, I did the solder
job and replaced the CXA1594L and still the same thing. Any help will be
appriciated.
Thank You
Vince

Look for a pair of SMD transistors that have their collectors connected
to easch other, this is bandswitching.

Look more at the voltage at those collectors when you switch between a
channel that works an one that goesn't. If the voltage doesn't change
you are on the right track.

JURB