What kind of noise? I had noise after recapping, but it was more kind of distortion... I solved this by adjusting the blue dc offset trimpots.. (can be done for each channel by bypassing the effects) There is a sweatspot for each channel, where the distortion noise is gone.
Combination of static, distortion, and audio not sounding like it's coming through clearly... sometimes not even sounding at all. Once I finish with the caps (there's definitely corrosion and all my testing has shown dead caps ) I'll try to tweak those trimpots. Thanks for the hot tip.