Toshiba RT S85T /FM stereo issue

mark

Member (SA)
Hi guys
FM mono is fine but FM stereo has major distortion. I’ve replaced IC TA7137-P which fixed my big FM reception issue.
I’ve tried turning the FM pot….
Anyone come across this issue?
 

Superduper

Moderator
Staff member
What does that IC have to do with FM reception? It's an audio preamp IC.

As for stereo, perhaps your mpx IC is toast. Also, while mono is fine on lower strength stations, to extract stereo, a stronger signal is necessary. This could indicate weak FM reception perhaps on the FM front end. However, if it were me, I'd focus first on the MPX processor.