Hi, I found an Aiwa HS-P09 in good shape at a thrift store for 40 Euro. With the new Belt (phonohifishop) everything plays fine. Autoreverse seems to work without a Tape. So i give it a try with one of my best Mixtapes. (Sony UX-S 60) The Mechanism didn`t swap the Pinch roller and eats the Tape (Bandsalat). This is what i found. A broken Gear C . For a better View without the Spring and Gear B. 1. Attempt with superglue. Failed . 2. Attempt with a Hull. I found a hollow rivet which was just a bit to small. I deep froze the Gear C and boiled the rivet and pressed it together. First it works very good . The Pinch roller swaps but the speed was not good . It sounds like chipmunk and there was a noise in the gear. The connection was not in the right angle and the collar from the rivet was rubbing. I carefully disassembled everything and cut the collar off. Pressed it together and checked that the Gear B was moving on the felt washer. It is a really good connection and the speed is stable on both sides.
Sadly i can hear to much wow and flutter in both direction. With different and good cassettes. The belt is a new one from phonohifi and looks very good 0.6mm . I cleaned everything very carefully. All the moving parts capstan etc. are clean and with a drop of oil or grease running fine. Capstan shaft is shiny and have good contact with the pinch roller. I don`t think it is the motor but i didn`t open it. Is this even possible? So what`s left? Pinch roller 7,5x 6x 1,5 mm could not find a replacement. I found these https://fixyouraudio.com/product/pinch-roller-6-x-5-x-1-5-mm-for-cassette-players/ The 6mm is to small but there is no space for a 9mm one What`s about a servo feedback circuit for the motor is there one ? I don`t have the schematic for the board. All the caps are original. What would be the first thing to look at ?
I was able to bring a little bit of mechanical oil into the motorspindle and replaced the belt again (fixyouraudio) and this belt improves the W&F .
So after listening to different cassettes i can say it is a very nice unit. Small buttens but easy to push. The auto reverse still works perfect.
