Clean rubbers work for me.
I have a Denon DRM-800 That plays cassettes perfectly but,,after about 10 seconds it stops recording,,cassette tape is fresh ,heads,rollers etc have been cleaned and de-magged whats up?
Make sure the rollers are really clean.
In my case I didn't clean the rollers aggressively enough. I always heard you need to clean them, but never how clean.
My Problem: Tape plays then stops. rewind then stops. Fast Forward then stops.
I have cleaned the rubber rollers before but never to this extent, never went all the way, and it worked.
I don't know all the technical terms but here's what I did.
I indiscriminately sprayed Deoxit and Faderlube in various moving parts.
Cleaned tape path: the heads, the steel spike like things (are those the capstans?) and the rubber rollers (pinch rollers?).
Result: very little but some improvement.
Rewind still stops, FForward still stops, Plays a few minutes and stops and tape loops out of cassette.
What really worked ----
Source vintage-electronics tech tips on cleaning pinch rollers and rubber idlers:
http://www.vintage-electronics.cc/vtechtips.html
Aggressively cleaned the rubber rollers until qtips turned from a dark/black brown to a very light color. As I scrubbed id clean, I could feel the qtip gliding on the rubber smoother with most of the crud wiped off. I supposed I could have cleaned even more but I was afraid of wearing down the rubber roller.
I took the cassette door off and fooled the tape deck thinking a cassette was inserted by holding down the trigger in the upper right and pressed play.
While the rubber rollers were spinning I used a qtip with cleaning solution and scrubbed the rollers. Make sure you do it on the exit side of the steel spikes or you will get the qtip fibers caught in the turning steel spikes.
Result: I can now Rewind, Fast Forward and play a complete cassette.
I was worried I might have to replace the belt because it felt loose, or worse figure how to replace idler drives that I have read on the forum.
Talk about a saving some repair and parts costs! :tresbon: