Toshiba Satellite L655 No Power [FIXED]

The reason why this Toshiba Satellite L655 can't power was the owner used a universal power adaptor with 20volts output. When I disassemble the unit I saw on its charging circuit the protection diode connected in parallel with the positive with respect to negative. I am sure that this diode was the culprit. Because of the over voltage the diode became shorted, causing the 19V shorted to ground.

I just remove the diode and the laptop was revived!