Trying to help someone with an issue with a Pioneer SX-D7000 receiver over in another forum. We have it down to a PLL that has a sawtooth on the tuning line and won't solidly lock. Any body here that is good at PLLs that could perhaps take a look at it? https://audiokarma.org/forums/index...-on-pioneer-sx-d7000-tuner-issue-long.883443/