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Issue fixed - RC853 was blown, haptic feedback is now working.
Note: PPBUS_AONSW_TPAD was missing.
Regarding the audio issue, I replaced all three amplifier chips - cracking sound is gone.
Other “issue” … the right speaker is sometimes crackling at 100% volume with heavy bass, I have already tried a new speaker same behavior - any idea?
Edit: The trackpad haptic feedback is also unreliable (50/50 not working/working) I have already replaced the cable, same behavior - seems like a...
I’ve already ordered two (just in case). I’ll let you know if it fixes the issue or not.
Note: I’ve tried it with a known good ISL9240 - seems like it is not compatible (at least on the A2941).
Yeah I have added the diode value, please check again.
UT360 (Line: PP3V3_S2_HOLD_IPD) was shorted, I have replaced it - short was gone.
But now it stucks at 5V (Before it was booting fine but without keyboard/trackpad functionality)
PPDCIN_AON_GHGR_R = 5V
R5221/5222/5261/5262 = 1ohm (Note...
Hi,
I have an 820-03286 (A2941 / MacBook Air M2 15” 2023) that has no PPBUS_AON and gets stuck at 5V / 0.05A.
Note: I replaced U5200 because PPCHGR_VDDA/VDDP was only at 4.5V. After replacing it with an ISL9240 (from a MacBook Pro M1 2020), it’s now back to 5V.
Current measurements...
Sleep wake sensor was not working, I have recalibrated it with a tool - all good now.
Keyboard is now working - JT400 was faulty, I have replaced it.
Trackpad is still not working - Cable and Trackpad are good - Any idea?
Issue found:
UT350 (PIN: SPI_IPD_TOUCH_CS_CONN_L was fried) - Replaced...
Hi,
I have an iPad Pro 11” (3rd generation – model A2377) with a non-functioning Face ID. It consistently displays the message: “Move iPad higher/lower” during setup.
When inspecting the TrueDepth system with an infrared-sensitive camera, I noticed that the dot projector is not emitting any...
Same behavior with the new daughter board.
I suspect the issue is related to the sleep/wake sensor, which doesn’t seem to be working correctly.
Example: When the MacBook is closed and I plug in the power cable, it automatically boots up. The display doesn’t go to sleep when I close the lid...
I took the measurements again and updated the values above. (with keyboard and trackpad connected)
The diode value for SPI_IPD_MISO_CONN is 0.100 lower than the source data you provided.
Other than that, everything seems to be OK.
How would you like to proceed?