[SOLVED]820-2530-a no charging

lukazmac

New member
i have board i have problem to fix . Long time not been here so i decide to ask for help.
pin 27-28 on u7000 -20.5 ohm
R7047-10.5 ohm
R7031- 10.5 ohm
J6950 - pin 9,8,7 0.2v pin 6 and 4 3.4v
what should i check. Help please
 

dukefawks

Administrator
12.3 is too low and the SMC is not talking to the ISL6259. Disconnect the battery indicator cable to rule that out as a problem. See if PPBUS comes up to 12.6V now. If not do a diode mode reading on both data lines going to the battery.
 

lukazmac

New member
i measure board outside case on table so only magsafe is connected. so from what point should i measure to with point . i take it red probe will need to be on ground?
 

dukefawks

Administrator
That is also ok. Check PPBUS again if it really is 12.23 or 12.56V. If you press the battery indicator do the LEDs light up?
 
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