Managed to get my FM working quite well after cleaning the tuning capacitor.Not sure about Quartz lock. It does light up on occasion. But more research needed. I have recapped the whole unit and replaced all the recommended transistors. Will replace the PS caps last. I did build two CS boards. They test as a diode on my Peak. Is there a way to confirm they are built properly before installing? Need to figure out exactly how to install them.