Hi there - working hard to keep my WM-F550C alive... ...but need the help of an expert! Unsure how to adjust the 2 trim pots shown > Dolby Level ADJ LCH and RCH Also >> If anyone has a service manual, I would greatly appreciate it! this model is of course similar to all the WM-150 variants, but with dolby C and a tuner Thanks if you can help
