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Liquid spill on this board, i change R9731 & R9715, i have BKL_EN=2,7V
i remove C9796 look bad, is it necessary?
is it U9701, i don't see more damaged components
the board work well on external display.
Ok i have really a short in the LCD, i change Q8608 again and i have BCKLIGT_EN_DIV= 12,08V and LCD_BCKLT_FUSED= 12,50V
PPBUS_S0_LCDBKLT_PWR=0,806V i don't understand why, the screen is not plug, the impedance of PPBUS_S0_LCDBKLT_PWR is 3K7 ohm.
I have an ipad air 2 who make red screen after reboot like iPhone 5s.
I try to remove camera both, nothing change. I can't restore it because the screen come red in restore.
Do you have an idea please?
Liquid spill on the board near U9000 i clean the board with ultrasonic, i remake solder of U9000.
I change the fuse F9800 and Q8608, but always no backlight. i check the connector of lcd for short, but i don't see anything.
Q8606 and F9800 are dead when i plug the screen.
can you help me please...
i can't, it's strange today i can't start the board, i push on button the led white in front light but no sound of superdrive, no boot i don't understand, fan spin always.
what is need for a board make a boot?
it's difficult to have the green led on this board (is very low light green) sometimes work.
the board work with an full charge battery, the battery indicator working, no liquid, i try new magsafe board 820-2565, same issue.
when i have not green led:
SMC_PM_G2_EN = 3,491V...
I inspect all the board under microscope, i put the board in ultrasound cleaner, the board is clean, no corrosion on the board.
i check with scope the signal Y1905 ok i have SYSCLK_CLK25M_X2 at 25mhz but nothing in output of U1900, all PP3V42_G3H=PP3V3_S5=PP3V3_S5RS3RS0_SYSCLKGEN=3,34V during my...