I finally got around to replacing the belts on that JVC KD-D2 I found: wooh! It seems, in doing so, I broke something else! (lol) Now, there is a whirring sound on playback, that persists when I press "pause": I've attached a video here. does anyone have an idea as to what this might be? Also, if anyone has any advice on anything else I should look for when I open it back up, I would appreciate it as well: I've cleaned the head and idler tire with isopropyl alcohol, but am unsure if there is anything else I should clean in the meantime. I got this cheap deck so I could learn the basics without worrying too much if I broke something, and what better way to learn, than by fixing what you broke? Thank you for helping a newbie learn a bit about how these things work!
I feel like pause just releases belt tension but the motor keeps spinning. I wonder if maybe a tiny plastic washer might have fallen off causing the pulley to scrap on something, it sounds like too much contact with something coming off the motor shaft. Does it play ok? I'm wondering if you need some lube on the motor shaft.
Thank you! I went back in and found that there was a wire that had shifted out of place when I reassembled it: I put it back behind its proper hook and that solved that. Playback sounds great for the Cr02 mixtapes that I found, but it still needs some parts replaced. These are the next steps in tinkering with it, with which I thought I would ask for advice as well: 1. Pinch roller is shiny/smooth and needs to be replaced or refurbished, but I can't for the life of me figure out how to get this pinch roller arm off! I know that some seem to have a C-clip, this one looks like rubber (I attached a picture), any advice on how to remove it? 2. The "Cr02/Metal" Tape switches have no impact on sound quality at all, so I figure they must be broken. Unsure of where to begin here, any advice on troubleshooting would be welcome. And, just for fun, here's the timestamp: April 7th 1981. It's very cool to think about this JVC tape deck as a piece of media and economic history: globalization, consumer electronics, and media formats all in one
The service manual says it's an e-ring, I don't see any slots or breaks in yours. Here's an Amazon e-ring tool, you can see the e-ring in the red tool at the top looks different than what you have. I use a tool like this from Harbor Freight for snap rings, it's $5 USD