Technical Support A1502 820-4924 No image

[user50630]

Hello there,
I have this MacBook working with no Image or backlight, PPVout_s0_LCDBKLT is missing
I have changed U7700 and Q7700 and q7701 and still missing
can please help me please?
Thanks

 

[Ahmad Safari]

Hello
Each IC has a set of power supplies and enablers that must be available to work.
Check that the u7700 IC input voltages enter the IC?
Also, does the Enable command enter the IC?
If the voltages are input and it is enabled, ICs and components should be checked.

 

[user50630]

thanks, I have solved it, U8300 was faulty.