Manuals or Schematics

SOURCE: Technics RS-TR272 dual cassette deck

My RS-TR272 tape deck plays the cassette but no sound. I have not even used it much, may be 3-4 times in last five years. I tried demagnetizing it but still no effect. It is brand new unit, only thing I did last time was that plugged in the RCA cables in opposite ways one time (Output in In and In into output one). I am not sure if that had any bad effect on it. Can someone please help on this as unit shows cassette playing. There is no volume switch on the unit itself as someone else recommended in the previous answer.

SOURCE: CT-W602R Dual Cassette Deck- door won't open

had same problem, just changed the belts and works like new.

SOURCE: wheels on the tape deck don't turn on either side,

You have a broken transfer belt and it needs replacement.
This will require you to take the tape deck apart to service it.

SOURCE: Sony TC WR565 dual tape deck. Both doors will not

you can not fix it without tearing it apart. if you do take it apart, try to get the front panel off. Hit the eject button and look for a lever that is stuck.

SOURCE: I need to know how to record 1 tape onto another

press the synchro start button, the tape deck should now go to REC PAUSE, press the SPEED button till you get the required recording speed then press the synchro start again and it should start to record from deck 1 to deck 2.

make sure the tabs at the top of the tape you want to record on are intact,
if not just put a bit of sticky tape over holes.

hope this helps?