Marantz CD player.....Guts

I've been curious about this older player (CD-152) since picking it up at a thrift and being amazed at the sound. I cracked the case to see if it needed a new belt as the drawer isn't opening on it's own. It only needs a slight pry then opens the rest of the way on it's own. It also closes on it's own. But that's all really besides the point.

I noticed this unit is sporting Yamaha chips. I'm not proficient enough to tell what's what, DAC or whatever, but there are two of them in there. I remember a thread somehwere that stated Yamaha chips were supplied to many manufacturers for a period of time and some were considered of fairly superior quality. I'm just wondering where these sat in the chip line-up and if this is the reason I'm really enjoying this player.

That transport looks very similar in design to a few Yamaha CD players from the late 80's - I had a CD-5 and CD-20 which used it.

Interesting as I wouldn't think Marantz would rebadge players...

Do you think it's rebadged or just uses some Yamaha sourced parts? What quality were the Yamaha parts of the time (1986 ish)?