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2informaticos replied to the thread 820-02841 no led magsafe, 20v 0A.Check diode mode to ground around non-working CD3217 chips; especially LDOs and CC1/2 lines. Compare with UF500. -
2informaticos replied to the thread [help]imac 21,5 a1311 820-2641! is it a kind of magic?.Inspect and clean J3400 slot. Check diode mode to ground at pins 2 & 6, w/ w/o airport card inserted. If all good, remove Q3470 and...
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Pphantom replied to the thread iMac 21.5 A1311 start up issue.i have the same identical problem: have you fixed it?
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Pphantom posted the thread [help]imac 21,5 a1311 820-2641! is it a kind of magic? in Macbook Logic Board Repair Questions.i don't know how to explain it....never seen a problem like this one led as soon as i push the power button, the led disappear. i've...
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Rraainxx replied to the thread 820-02841 no led magsafe, 20v 0A.sorry all fuse are good. When I connect the power adapter only to JE701 (UF500), I do get PPBUS_AON = 12.02 V, but not on the other two...
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2informaticos replied to the thread A2338 820-02020 no loudspeakers.What about SPKRAMP_RESET_L? Check UR400.
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2informaticos replied to the thread 820-02841 no led magsafe, 20v 0A.Impossible to understand, if you don't use correctly ". " and ",". Please reformulate...
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2informaticos replied to the thread 820-01041 wake up problem.If machine has sound and working touchbar, it wakes up. You may have problems only with image, or backlight.
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