Sansui G2000 with right channel distortion and phono/stereo-mono board issues?

This Sansui is not the most powerful as far as watts but does have a real clear sound to it, it's easy and pleasant to work on. Had distortion on one channel and in phono, the mono stereo switch one channel cute out on stereo...but parts are still available and was able to fix it...
thanks for watching and am looking for comments on this amp, especially on
the resistors R72-73-74...
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**Important Note: most of my video's that are on my channel involves high voltages that could cause harm to yourself or even death...If you follow my video's and try repairs yourself, you are doing so at your own risk!!!
thank you my friends

[@TrevorsBench]

These G2000 receivers are a real gem once they're tuned up and working properly, good job

[@itslilyitslily]

Thanks, I'm building up the courage to take another crack at fixing my AU222 with stereo issues across all channels.
Voltage and resistance checks tonight. Thanks for the video, particularly setting bias using multimeter

[@Trucam2020]

Thanks 👍

[@frankgeeraerts6243]

I have 2 thumbs ! 👍👍

[@VintageAudioFever]

Thank you Frank

[@mreinstein1056]

DC off set should be checked on full volume? Or at low volume?