WDBURNS%MTUS5.BITNET (William D. Burns) (02/07/91)
A few days ago I posted this: >Greetings all, > I have a Sony WM-AF64 Walkman that has seen a bad day. I don't know how this happened, but all of a sudden it's playing tapes at ~ 3/4 speed. The LED power indicator reads OK and exhibits this behavior while on batteries or plugged in to the AC adaptor. > I called a home-town "fix-it shop" and they would have to send it away (i.e. BIG money to fix). I can buy the tech manual for $30-40 but I was wondering if someone out in net-land has any experience with this particular model and/or is willing to send me a copy of the point-to-point schematic diagram for this little guy. > It seems to be a problem with the power supply to the DC motor but without a diagram, I'm a little lost dealing with all those tiny, surface-mount components. Also, do these things you striaght DC motors or some sort of servo motor? I am studyiny electrical engineering so feel free to be as technical as you wish. > > Any help would be apprecicated, What I forgot to say was that I had *already* looked inside of it and already tried to adjust the speed potentiometer...it couldn't quite get it up to speed... any suggestions? |\/\/\/| /____________________________________________________________/ | | /____________________________/ / | (o)(o) /William D. Burns / InterNet: / ( _) / (906) 482-FIXX / WDBURNS@mtus5.cts.mtu.edu / | ,___| /____________________________/ Bitnet: / | / / Michigan Tech University WDBURNS%MTUS5.BITNET / / \ /____________________________________________________________/ /______\ (funny, one-liner here..) ------ Posted using NetFeed, THE Macintosh <====> UseNet Interface Program ----
tf0z+@andrew.cmu.edu (Todd Andrew Ferrante) (02/09/91)
>What I forgot to say was that I had *already* looked inside of it and already >tried to adjust the speed potentiometer...it couldn't quite get it up to >speed... OK forget my last post