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troubleshooting technique
hi, why is the multimeter used in diode mode with the red probe at GND and the black probe on the components. is impedance measured? for what? what are the reference values? thanks.- Mario Mancari
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- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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820-2936-A no green light
I bought a macbook with 2936A without green light. The old owner says he saw smoke from chargers. -F6905 OK but dc in is 6.80v -3.42v ok -ppbus nothing -U7000 replaced and checked all nearby resistors. Still nothing fixed. U7000 Pin: 17/18 = 1.1ohm 27/28 = 20.2ohm r7010 pin 1 = 6.80v /...- Mario Mancari
- Thread
- Replies: 15
- Forum: Macbook Logic Board Repair Questions