long story short: I need U1 (sot 23) marked L33F at a guess a regulator, i just dont know what it to find it..... Any ideas? short story long:- cheap batteries were left in this remote and they leaked all over the place witht he nice rubber cover holding all the acid in... I cleaned it as much as i could and replaced the batteries with Duracel. All 4 leds blinked about 30-40 times and the control wouldnt sync. after a while thinking it was the connection still not clean i picked up the smell of burning components. the acid had made its way inside and shorted out something to over load this component. thanks for looking.