mga bro, ask unta ko suggestion. By the way, i have 4 units of coin operated gaming pc, then as i've noticed sa isa ka unit is sige lang kaguba ang relay, so di cya mo-OFF maski zero na ang time. wala ko kabalo if naunsa ni siya, pero i replaced it (with super nes timer) 3 times na then same problem... Dako nako gasto ani... I would appreciate to any suggestions.