acer 7720g laptop spares/repair (wont power up) !

this laptop is in good condition just will not power up light comes on and fan starts then nothing screen undamaged it comes as is with no charger, and hdd cover is missing (tho caddy still present) Intel Pentium Dual Core 1.73GHz x2 Processors 250 GB SATA Hard Disk. 1 GB DDR2 RAM Crystel eye web cam 17' WXGA + CrystalBrite LCD Intel Graphic media DVD Super multi DL Sub woofers with Acer eAudio and built in DOLBY Digital Live system. Wireless internet. please text before calling as screening none vital calls