Bush Tape Cassette Player Faulty, No Sound. Amateur repair DIY Fix It. 

I appreciate the logical, methodical approach to the repair....trace the signal path starting with the amplifier...then follow the circuit path on the PCB, then test out the headphone connector....good work. I meself have a vintage nonfunctional audio cassette recorder that I will attempt to repair.

This was awesome !! Thank you

I've seen a few of these, they're really, really badly made. First the reason for the noise is most likely something on the board is rubbing against the flywheel. This always seems to happen as they didn't bother to install spacers between the board and the mech like would have been in place in the '80s when these were used with 8 bit computers. The socket will most likely break again. It's not a cold joint, they're just garbage connectors - you probably nudged the pin that makes contact with the make/break plate upwards a tad making it work, temporarily. The only proper fix for this is to replace the socket (it twists out of shape when someone is rough with the headphone plug). What I did with these was to swap the ear and mic jacks - the mic doesn't get as much use, and when it breaks it just makes the built in mic not work. I wasn't able to find any suitable jacks. They're just carp mate 😂

lol at Def leppard, probably her brothers :)