hi guys,having recently aquiring a daewoo box (sorry i forget the model number-but see blasterpunks brandt for pics-its identical save for the badge) it seems to have a slight problem-the tuner only comes on for a split second then cuts off again when you go from tape to radio on the function selector.do you think its just a switch issue and cleaner will remedy it or is it something more serious?its in lovely condition with fantastic sound and im keen to get it working properly again.