Sega Saturn sound issue

[seastalker]

I just re-capped my Sega Saturn. Picture is crisp and sharp as ever but the sound is very quiet. I thought it MIGHT be the adapter -> Sega Genesis HD retrovision cable but ruled that out by using my svideo cable and noticed the same thing. I will have to open my saturn again to study the solder joints.  Anyone know where I should focus on?  When I put it back together the first time, I think the power supply was touching metal the plastic guard was supposed to be protecting from and I shut it off immediately when I saw a black screen and smelled burnt plastic. The system now works great after readjusting except for the very low volume sound. I have to turn the sound on the tv WAY loud and hear buzzing so hope to correct this.