Good night, I do not know what you mean by "CHANNEL COLLECTOR" I encourage you to think that it refers to the tuner ... Diagrams are on the WEB is easy to find just enter the Google Chrome search engine: Schematic chassis 3Y18 + PDF / This has to take you to places to visit where you can download the diagram ... I have it on the PC look at it, and I comment that it does not bring in the cleared plates that serve to buy it ...