pin line up on the stereo

[Guest]

Can anyone give me either a link or the pin lineup on the stereo of the 85 Limited edition 1200? I want to put the cassette player on the bench and hook it up to 12 volts, get it running with the top off to find out why the heck the forward/reverse feature insists on continually switching back and forth. I've read a few solutions on here, none seem to do the trick. So what I'm looking for is which pins are positive and negative from left to right while looking at the back of the unit...Thanks.