You can easily replace a laptop battery, hard drive and/or RAM in the field. Also, almost any software can be updated or added in the field or via remote access.
Field Replaceable Units
What component may be considered a field replacement unit?
a field replaceable unit
FRU (Field Replaceable Unit)
Field Replaceable units, Chinese components (they cheaper to replace than repair).
Field Replaceable units, Chinese components (they cheaper to replace than repair).
Generally yes. I recommend using a power supply tester- these are not expensive and readily available.
Field Replaceable Unit
An LRU is a unit that can be replaced in the field.
Field Replaceable Units
i/o card
A CRU is a Customer Replaceable Unit. A FRU is a Field Replaceable Unit. A FRU needs to be replaced/repaired by a qualified field support person, while a CRU could be replaced by the user/customer.