Success in repairing laptop motherboard,which bring results and covered experiment cost. Since 18 years of my job as a research technician i make service log data ,troubleshoot record and some general theory of Laptop motherboard power system and signal ,this information given an accurate measurement to get know what happen and find the problem .I am sure this repairing knowledge could be an profit alternate than change new expensive motherboard with not sure available. This book contents a Notebook computer electronic circuit repairing method for advance or elementary technician with basic electronic knowledge , step by step problem checking analyses. Electronic tolls tutorial and troubleshoot for general Laptop electronic circuit design.