Sansui T-900 (or T-9) AM/FM Tuner Repair - Auto/Stereo Mode Not Working

Sansui T-900 is a very sweet sounding AM/FM tuner. This is my first repair video for a tuner. Although I followed the instructions showed in the service manual, but I was unable to fix the problem. Fortunately, I read a thread (for a Sansui T-60 repair) which was posted on AUDIOKARMA's website:
audiokarma.org/...
I have to give thanks to AUDIOKARMA's posting and hope this video can help other DIY fans as well.