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The device turns on normally with the battery charged, but the Mac does not recognize the charger in any port.
With the battery, I have 20v 0a. Without the battery, the Mac does not turn on, I have 5.13v 0.23a.
I have 12v on the PPBus. In the CD3215 tests I noticed that at times I have, in...
I waited for the sound problem to appear and compared pins 16/18/20 with another board!
In diode mode, pin 20 was giving 0.120, while on the good board it was 1.700. I replaced C6602 and L6607, now it's the same and the sound is working. I'll keep testing to see if the sound fails again. I'll...
Imac with intermittent sound. Sometimes the sound comes out of the speakers normally and then switches to the optical output. The volume icon shows a prohibition sign.
I tried changing the P2 connector 3 times, but the problem persists. I searched the forum for alternatives to "kill" the P2...
"So it stays on in boot menu?"
Yes, it gets stuck in the Menu. It allows you to choose the boot option, but when I select it and press enter, it gets stuck with the boot options and doesn't even start loading.
"It only crashes when try to boot OS, or ASD?"
When I turn it on without the battery...
Yes, both crash as soon as the apple appears.
Just to be sure, I put this board in a complete topcase (keyboard, trackpad, battery), working 100%. Same problem.
I was able to run ASD 162 without the battery connected! With the battery on, when I choose to boot from ASD, the Mac crashes.
It only showed an error in the battery sensors. Probably because it is without the battery.
Sensor - Temperature (TBOT) -- Battery TS MAX (test 1)
Sensor - Temperature...
Yes, the trackpad works normally without the battery.
I tried to run it in diagnostic mode, but it doesn't work, it shows Apple support website and -510d.
This model no longer has ASD, right?
I found some oxidation near J5250 and U7310. But nothing causing a short circuit. I replaced the components and cleaned everything. But the problem persists.
The owner of the Mac did not report any previous problems.
I'm struggling with this logic board. If I turn it on with the battery and trackpad connected, the system doesn't start. If I disconnect the trackpad or the battery, it starts normally.
I tested it with another battery and another trackpad, same problem.
I checked the resistors on the trackpad...
I agree that the PPBus with 12.5v is perfect. But as I mentioned the Q7030/40 and when I checked it I noticed a difference, I found it strange.
Any other suggestions?
Something changed in the Q7040, pin 12 in diode mode had 0.830, I found it strange that now it has 0.480, then I discovered that they are shorting with pins 11 and 10. I will order the components to change.