hello,
i have a ibm R60 problem is no power .but the 20V is present on max1901etj dc-dc but no sdtby voltage 3.3v 5v.the time/on5 & 3on signal present .I think the problem with BD4175kvt tsurumai dc-dc controller and pmh7.does anyone know about the bd4175kvt what needs to be checked.
thanks

_________________
repairs of laptops and selling of components