[SOLVED]Green light very dark 820-2936-A works only battery macbook pro 2011

[aurel476]

I checked F6905 and R7020 16,9V it is ok any idea ?

 

[aurel476]

Hello
Without Battery :
PPBUS_G3H 12,18V
CHGR_ACIN 3,96V CHGR_DCIN 16,38
At pins 27/28 24,2 Ohm , Pins 17/18 6,8 Ohm of U7000

 

[dukefawks]

Did you try a known good magsafe board and charger? Voltage on ACOK from ISL6259?

 

[aurel476]

Yes i have tested another magsafe board and charger, on ACOK from ISL6259 0,54V

 

[aurel476]

0V at U6900 SMC_BC_ACOK_VCC R6929 OK bad ISL6259 ?

 

[dukefawks]

Measure resistance to GND on ACOK line. If that is not really low it is probably a dead 6259.

 

[aurel476]

resistance is high on line ACOK, i wait a new isl chip for replacement

 

[aurel476]

I replace isl6259 U7000 it works thank you very much for your help solved