troubleshooting

Hey guys! First time posting here! I have an Alienware 17 R3 laptop that I picked up broken to see if it was repairable (I like learning new skills). All signs point to a short on the motherboard, I plugged in the charger and the blue LED on the charger cable goes out immediately if I attempt to...

Hi there to you all, I need some help with a troubleshooting/ repair. I have an analog/digital oscilloscope Hameg HM1500, it has some RTC problem, it presents a partial sweep. I think is the horizontal circuit, that's either missing a voltage or there is some faulty component. The only problem...