jpm sidewinder problem

[paulg559]

hi guys new to site and looking for help if poss. got jpm sidewinder thats not working checked all output voltages from power supply and fuses and all seem ok. its fitted with a mother board 2 vid boards and a sound board.no viable damage.when powered up mother board leds 1 flashes and 1 stays lit,red leds on reels light up but nothing else happens no sound or reels spinning, no display or other sign of life. all help welcome thanks for ur time.