Capstan drive , motor and conventional belt, contrarotating different size spindles, 1.89 and 2.09 mm. But FF/REW and spool take up is a second, 2 wire motor, with no slip clutch, cog to cog to cog, reversible via jockey swing-arm assembly . The first drive cog is different to all I've ever seen with teeth about 3 times longer than usual, usual pitch. Long teeth for some give/reduced noise? There is a hall sensor under the (normal direction drive) take up spool, is that used not just to sense a stop/jam but to give a variable feed to the main motion motor. Even then it has to be more drive than exactly required , by some degree, so does design allow for the motor to be used as a sort of slip clutch, as a DC motor not precise stepper motor Yamaha rare heavy ghetto blaster AST C10, 1989, otherwise just (just - hah-hah, horrible topology puzzle to get there) needs the rubber bands changing to silicone rubber bands ( futile exercise replacing with contemporaneous neoprene bands and no known suppliers who state they stock newly manufactured flat bands)
- posted
10 years ago