motherboard - Ground terminals on the laptop PCB; laptop PCB . . . And in nearly every repair there is a multimeter used to test different components of the motherboard to see if their resistances voltages are normal I see that he puts one of the multimeter probes to one of the through-holes of the board (which are used to connect different layers of PCB, AFAIK), and the other probe is connected to the
pcb - Best methods to fix broken tracks - Electrical Engineering Stack . . . I use wire-wrap wire to fix broken tracks, or to modify boards It's very thin, and easy to solder because of the silver coating It breaks easily so some sort of glue to hold the wires in place is advisable, I just use masking tape, sometimes
Can I use a 250 nF instead of a 200 nF SMD ceramic capacitor? Im trying to fix a broken GPU that has a missing 200 nF SMD ceramic capacitor I found a similar one on a motherboard that has a capacitance of 250 nF Is it possible to transfer it to fix the GPU?
Chip ID on a HP Envy 17 M45792-601 motherboard I'm trying to repair this above mentioned motherboard and I have identified that there is a problem with the voltage supply regulators but there are a few voltage regulator chips that I cannot track down Would anyone be able to point me in the right direction for the chip in the image I believe it to be a 3V3 regulator chip (PU4501)
repair - Motherboard power-up issue - Electrical Engineering Stack Exchange Which involves BGA package soldering and requires that you have a spare chip in the first place Vendors of industrial motherboards do this - e g Advantech still can and does repair motherboards for Pentium 4 processors Noone does that for ancient office-grade PC hardware