820-02016 - 5.2V - 0,05A

[quasimodo]

Hey guys,

got something strange here. Customer told me, he changed the screen, then not working anymore?!

Board looks fine / no visible damage.

One CD3217 taking aroung 0,2A, should be working.

When i plug into the other port, 0,05A. When i connect to the same port, but flipped board, the amp-meter stays off / not taking any charge... (see pictures)

When i plug in to the working CD3217, PPBUS_AON = 12,03V.


Whats going on here?

 

[quasimodo]

update: PPBUS_AON 1.5V - 1V not stable when i plug with usb-c-meter not displaying anything.

 

[2informaticos]

Compare diode mode readings on the CC1/2 lines.

 

[quasimodo]

they are the same. 0.595

 

[2informaticos]

Compare readings between both ports on the USB-C terminals.
Try another USB-C ports flex.