Ok so I am still very new at this and wondering if i could get some help pinning this down. No mag , no chime, dead but clean as a whistle inside. I measured around C6422 to look for short to ground, following a prompt in one of the threads here, and suddenly the green light was back. I reinstalled the board, but alas, the green mag light disappeared again. Anyone out there make sense of this? I have power on all the main fuses...
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Re: 820-3476 2014 A1502 no mag light, no chime,dead?
Known good DC-in board and Magsafe2 60W/85W? Both connectors cleaned?
(C6422 has nothing to do with not getting green light on Magsafe)OpenBoardView — https://github.com/OpenBoardView/OpenBoardView
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Hello again,
got an MacBook Pro from 2015, model A1502 and motherboard version 820-3476-A.
Device died over night on charger.
Currently I did the follow things:
1. Checked visuell the board, test with another MagSafe-Charger and with another DC-IN-board too
2. Measured 16,5V on PP18V5_DCIN_FUSE but 0V on ADAPTER_SENSE and 0V on PP_3V42_G3H and 0V on PPBUS_G3H but 16,5V goes to U7090
3. Because of corrosion and bad resistor values I changed these components: U7090 / C7094 / C7095 / R7095 / R7096 / L7095 / C7099 -> But further... -
A1502 - 820-4924-A - light green and then orange without battery - Not turning on - CPU warm,3 beepsA1502 820-4924-A, e, no liquid, stop working suddenly. Yesterday, I've plugged magesafe, light green and then orange without battery,3 beeps, not turning on, CPU warm and at some point fan was spining but nothin on screen, .. no chemie. -
Hi
Im hoping someone might be able to give me some idea of what may be wrong with my Monitor Audio RSW12 Sub.
Ive owned it since new in around 2002, so would really like to keep it running if I can, it was the first ‘decent' bit of audio equipment I ever purchased and is a little sentimental.
The issue I had was that it would power up with the red light, but sometimes the green light would not come on and I would get no bass from it. If the green light did come on though, I would get sound out of it.
I have already tried replacing all of the... -
Hi
Im hoping someone might be able to give me some idea of what may be wrong with my Monitor Audio RSW12 Sub.
Ive owned it since new in around 2002, so would really like to keep it running if I can, it was the first ‘decent' bit of audio equipment I ever purchased and is a little sentimental.
The issue I had was that it would power up with the red light, but sometimes the green light would not come on and I would get no bass from it. If the green light did come on though, I would get sound out of it.
I have already tried replacing all of the... -
Hi
I have an 820-2610-A motherboard that has no green light.
I have noticed is when I do a SMC reset the light on the Magsafe blinks.
From My understanding, the sys onewire circuit is responsible for the green light on the magsafe
The sys onewire circuit on this model and others is more involved
I was hoping if anyone knows about this and how it works, can reply and let me know
I know this is an old model but I am sure there are people who still works on these or knows about them
I get 1.1v on the C7771 capacitor and will replace...
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