i just work on this machine, no much experience with this model.
i can see the picture but no backlight
I bought a new display because i thought the problem is the backlight flex cable but same problem
so i measured the IPD_LID_OEPN, if closed has 0V if open has 1.8V
PP3V3_S0SW_LCD has 3.3V
PPVOUT_S0_LCD_BKLT is 0V
F8400 is ok and the area around u8400 looks normaly
all the board is first time out of case and no liquid or similar to see
is this a known comon problem?
i can see the picture but no backlight
I bought a new display because i thought the problem is the backlight flex cable but same problem
so i measured the IPD_LID_OEPN, if closed has 0V if open has 1.8V
PP3V3_S0SW_LCD has 3.3V
PPVOUT_S0_LCD_BKLT is 0V
F8400 is ok and the area around u8400 looks normaly
all the board is first time out of case and no liquid or similar to see
is this a known comon problem?