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[SOLVED]820-4924 no power, responds to SMC reset

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Jay

Jay

Member
No liquid damage or drop damage, no previous work done on this Mac.
I get the appropriate light on the magsafe and it responds to SMC reset. No power to the machine though.

I checked PPBUS_G3H and get 0.686V at F7140

Also get:
PP3V42_G3H at C4850: 3.43v
PPVRTC_G3H at C1910: 3.43v
PP5V_S5 at C7505: 0.622v

Then I got to C7900 and C7901 which are both hot, sizzling hot, alcohol goes poof right away.

Second time I run into components getting this hot and it stops me as I don't want to do any/more damage. Any thoughts on where to go from here?
 
D

dukefawks

Administrator
They are on PPBUS, safe to rip them off and let be. Only 1 of them will be shorted, look closely at them and you can usually see a crack in the shorted one.

You are VERY lucky with these easy fixes...
 
Jay

Jay

Member
Hah you may have just jinxed me ;)
Easy fixes are nice but they don’t make for a great learning experience.

Will inspect closer and remove the culprit shortly.
 
Jay

Jay

Member
No cracks in either, they actually look perfect (though that may have been the alcohol on it that cleaned them), still remove 'em?
 
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