So my beloved 488 has a weird thing going on Channel 6. Before recording, everything monitors fine on this channel (levels through headphones, meters), and nothing is weird during recording (headphone monitoring, etc). However, when I play this channel back after recording (on either Cue or through the Mix) whatever is recorded is low (won't exceed -12 db on the meter) and muffled sounding. This ONLY occurs on channel 6. This would mean that the problem would be on the R/P pcb right? Because this is the only part of the schematic that I can see that would only affect channel 6? I could be very wrong, which is why I am posting here. I went ahead and took out the pcbs and am ready to replace the electrolytics on just the channel 6 portion of the R/P pcb and see if that will do anything. Any thoughts or advice? I am an amateur who has taught himself to read schematics. I've built tons of guitar pedals and synth modules, but troubleshooting a Portastudio is new to me. I'm the first to admit I don't know what I'm talking about, so any advice is appreciated!