Recent content by CaptOnH2O

TLDR: system would boot but no chime, no screen, only fan spinning up to high speed after 1-2 minutes. Isolated logic board showed expected voltages except ADAPTER_SENSE (0V and unexpected OPEN LINE to Ground when unpowered). Problem resolved after several minutes of rest. Should I consider...

Charger delivery was delayed. Got it earlier today... plugged it in and got fan spin. Assembled the MBP and it booted without issue! Before I send this back to my friend, would there be any point to checking voltages on the board? For a 12 year old laptop it looks OK. Only a few spots where...

I have an 85W Apple charger on its way. Should arrive tomorrow. Will report findings then. Thanks! Have any recommendations for a reputable seller of replacement magsafe cables? I found this one on eBay but don't know how to tell if they're legit. Am I correct in assuming my original charger is...

"STOP checking diode mode, or ohm scale, with power applied." Understood, thanks for clarifying. R7080 - 98kO (in spec) R7081 - 60.2kO (in spec) R7085 - 472kO (in spec) R7086 - 330kO (in spec)

Thanks for the welcome! I don't have a spare Magsafe charger nor lab power just yet. The pins on the magsafe charger only output 0.03V on the Adapter Sense pin, 0V on the neighboring pins when tested to the outside (GND) pins. But just now I noticed EACH of the 5 Magsafe pins output 0.03V when...

TLDR: Aside from replacing the DC IN board, does anything below indicate need to replace ISL6259 IC? Is there a way to test the charger (60W) to see if the cable needs replacing? (No fraying or exposed wiring, but the cord bends too easily just outside the rubber nipple at the brick.) I have a...

A noob determined to repair rather than replace.