overshoot
Member
Hello,
I have that board that had liquid damaged near DP900 and LP900.
I have replaced both as well as the LP8548B1SQ (from an 820-02016) but no change.
The BKLT_EN_R is at 1.8V however LCDBKLT_EN_L is at 11.8V.
I can see the Apple Logo when I turn on the MacBook however for some reasons, I can't get it to run an external monitor.
The Touchbar won't light up.
I can hear that I reach the login screen since I can activate voice over.
I've tried a DFU revive already but it made no improvement.
I have checked all the diode readings around the LP8548B1SQ and all are in range.
I've replaced the LP8548B1SQ twice just to be sure.
Resistors around that chip measure fine. No short on the surrounding caps that I can find.
Nothing lights up under the thermal camera.
I am at lost on this one.
I have that board that had liquid damaged near DP900 and LP900.
I have replaced both as well as the LP8548B1SQ (from an 820-02016) but no change.
The BKLT_EN_R is at 1.8V however LCDBKLT_EN_L is at 11.8V.
I can see the Apple Logo when I turn on the MacBook however for some reasons, I can't get it to run an external monitor.
The Touchbar won't light up.
I can hear that I reach the login screen since I can activate voice over.
I've tried a DFU revive already but it made no improvement.
I have checked all the diode readings around the LP8548B1SQ and all are in range.
I've replaced the LP8548B1SQ twice just to be sure.
Resistors around that chip measure fine. No short on the surrounding caps that I can find.
Nothing lights up under the thermal camera.
I am at lost on this one.
