yup the sound stop... then when i switched off the main power and switched back in the light didnt blink but it was permanently on. then when i pressed the start up on the controller and pressed the forward stick the tank moved right away.. but the normal one should take few seconds before it can move.. then disconnected all wires and reconnected it back then the worst happned.. lights gone.. tank wont move.. like its dead... rechecked all connections.. but still the same..
am thinking its the rx-18 board... but not quite sure whats the problem... or the rx-18 just gave up?

thanks

daryl