cd4

Noticed subpar FF / RW performance of the deck. Took apart the tape mech and this is how idler tires looks like, is this salvageable or I have to order new ones? If I have to order new ones what are dimension I have to look for? Or course I can remove then and measure, but I prefer not to tear...

Well, changed the cables on the turntable, got the proper stylus and cartridge, played a CD4 album, had 4 channels, now I guess I need a Marantz cd4 test record to adjust the CD-400B. Anyone have one they can loan out for a week or so? Thanks Rich

I am trying to set up a CD-4 quad system for vinyl. I have a Marantz 4230, SQA-2, and a CD-400 disc demodulator ... my question .... I have read that a CD-4 cartridge / turntable is not required, but the cartridge and turntable must meet certain quality specifications. Anyone have experience...