Do coils really get hot?

[lezsimply]

I was wondering if coils around processor really get very hot? I was checking a defective board and tried to power it up, I notice 3 coils are getting very hot while its ON.

[ktmmotocross]

Re: Do coils really get hot?

yes, some laptops have cooling pads for it, but replace processor to be sure

[lezsimply]

Re: Do coils really get hot?

Initially the laptop got an i5 processor but whenever I power the machine up it turns off after 3 seconds. I've got and i3 with same series so I tried it out. it takes a little longer before it turns off. I checked everything around the processor and none is shorted. Here is the schematic. On page 33, PL19 and PL18 is getting very hot.

At first I suspected PU6 is shorted but its not. Does not get hot too. board does not turn off when I run it without processor. So there's something wrong with cpu supply.

[dj_ricoh]

Re: Do coils really get hot?

where is the file?

[dj_ricoh]

Re: Do coils really get hot?

Initially the laptop got an i5 processor but whenever I power the machine up it turns off after 3 seconds. I've got and i3 with same series so I tried it out. it takes a little longer before it turns off. I checked everything around the processor and none is shorted. Here is the schematic. On page 33, PL19 and PL18 is getting very hot.

At first I suspected PU6 is shorted but its not. Does not get hot too. board does not turn off when I run it without processor. So there's something wrong with cpu supply.

take Pu6 down and resolder it!
if that is the Cpu`s supply

[lezsimply]

Re: Do coils really get hot?

oh sorry dj forgot to attach schematic here it is