what revision is it?? u152 does not appear on here.>
http://www.amiga-hardware.com/download_photos/a4000revbmb_1.jpgjust empty.
some more info on the fault and you will get more replies to help.
does it power on, if so do you get a display? what colour is the display if any, flashing power light or keyboard light sometimes point to a fault.
do you have the roms/memory/cpu installed correctly?
