820-3332 no power getting to board wine damaged

[TCRScircuit]

If you had a green light and now you don't your soldering might be messed up... Make sure to push down on the chip while soldering... Once your done, Add some flux and then drag your iron across the pins.. Iv'e done it before where the ACOK pin wasn't soldered and resulted in no green light.

 

[larossmann]

The no green light happened after measuring so he shorted something which killed the ISL and maybe R7005

 

[computercaverva]

we were getting 17/18-24.1v , 27/28-21.3v, which you're probably right about the U7000 being blown.

 

[computercaverva]

Just removed the U7000 replaced with a new chip, also removed all surrounding resistors and capacitors and replaced form donor board that had a bad Haswell CPU. Still no 3v42 and only ~0.5 coming in at the DC Jack, 4.1v on 17/18 of U7000, 21.1v pins 27/28 could it be that the SMC got shorted?

 

[dukefawks]

"we were getting 17/18-24.1v , 27/28-21.3v"

Now look at the diagram and tell me which voltage is waaay to high and what could cause this. Hint PPBUS should be 12.6V

 

[computercaverva]

We have found out that the isl chip has 3 pins that is being shorted, could this be caused by shortage in the smc chip?

 

[computercaverva]

*top of the island chip is being shorted to ground

 

[TCRScircuit]

Which chip are you talking about? The ISL6259 right? u7000? Which pins are shorted?