I already know that the speed issue i'm having (playing too fast) is due to the speed chip inside of it. My partner bought me the walkman with the hopes that I could use it to play a cassette an artist i enjoy is putting out. Both of us are under 25 and had never touched a walkman before. Had no idea of how complex it would be, though we should have assumed, with the older tech. The seller did not warn us about the alkaline battery thing, so of course, we immediately put modern alkalines in it. It's been playing too fast since, though I have since put rechargeables in, at the advice of everyone online. Keep in mind that we aren't experts in tech-my father can probably do some replacement and wiring work, but we are by no means trained or well-versed. I don't need any "well you should've known-" -I'm 20, unfortunately, I'm used to being able to buy used items and be able to use them immediately, with equipment that I already have. We understand that we should have done more research before putting batteries in, and are now paying the price. Is that chip destroyed forever officially, just from putting the wrong batteries in once? It sounds like it's nearly impossible to get replacements for that speed chip now. Are there other options to get the speed to work, or is it just finding a replacement or letting it be broken? Thanks for any advice y'all might have, even if it's "Sorry, you messed up, deal with it."
I don't know what that model is but everyone used alkaline batteries in the 80's and 90's. Rechargeable batteries were not as common or as good as they are now. I just finished adjusting the speed on my walkman and it just consisted of rotating a control with a little screwdriver. Your machine might be different from mine. I would search for a service manual for your model and see what it says. Good luck!
The idea i've gotten is that it's about the voltage, less alkaline, i couldve clarified. Alkaline batteries used to be 1.2v, and at some point changed to be 1.5v. It sounds like using all 1.5s is bad for the speed chip, causing it to run too fast. Rechargeable batteries are usually still 1.2 though. I will look around about a screw though, i think i saw other people mention that elsewhere. Thank you !
As far as I know, most all aa batteries were rated at 1.5 volts and only rechargeable batteries were rated at 1,2 volts. I remember buying an led flashlight when led's were the newest thing and they said not to use rechargeable batteries because the voltage was too low. My memory isn't what it used to be though.
https://www.manualslib.com/manual/567039/Sony-Wm-D6c.html#manual If that link works it should be your service manual.
A fresh set of alkaline batteries can deliver over 6V, which may be a problem, there are other possible causes of fast running. What is the serial number of your D6C? If it is one of the later models (with serial number above 267,201) then the electrolytic capacitors inside it will be mostly the surface mount type. A lot of these surface mount electrolytics from the 1990s are going bad now and causing a lot of problems in these later model D6Cs. I have had a few for repair where the fast running was caused by bad capacitors in the circuit around IC601.
Most members here are pretty forgiving, I doubt you'd get any attitude. We all started somewhere. Good luck with your repairs, some of these can be difficult to repair without practice and bench tools. Take a ton of photos so you know where everything goes because you will forget. I use JIS screwdrivers, there is always one screw that doesn't want to come out and you'll strip them with a normal Philips Screwdriver.
