technic deck has gone pear shape, please help

i recently bought 3rd hand technic 1210's off a bloke at work, they seemed in workin order after i dne athew things to them, iv ad em for 2 weeks or so. but just the other day i was jus fucking about with the weight on the tone arm, turned on the deck n pushed play, then all the led lights startin flickering & when i play a record it speeds up & dwn. iv checked the voltage bit & its in the right position, changed the plate off the other deck coz i thought the magnet might be gne but still nothing. i did, before this happend, get a little paintbrush & gentle cleaned the inside where the magnet for the plate sits, but only quickly nt like ruff n hard.

please help me with this its really annoyed me :(
thanks for any help given! perry

Hrmmm seems like a short in the power supply... You might have to send it in or find a local repair shop! Good luck :)