ASUS X556UJ_MB rev 2.0 touchpad

[steve.rand]

Re: ASUS X556UJ_MB rev 2.0 touchpad

Pin 5 is actually pin 4 GND

60NB0AG0-MB1111 boardview https://www.badcaps.net/forum/showpo...76&postcount=4
.

In MB1111 pin 5 is ground right? I'm getting 0v and continuity to ground so it seems to line up?

[mon2]

Re: ASUS X556UJ_MB rev 2.0 touchpad

Yes, looks correct. Concern is for the low voltage readings of the I2C track pad lines.

Remove the esd diode you have near this connector and measure the voltage readings again. Test again without the esd protection array.

[steve.rand]

Re: ASUS X556UJ_MB rev 2.0 touchpad

This is nearly the exact board version I have:
https://devicedb.xyz/dev/file/3886-a...boardview-asc/

I think the boardview files here at badcaps for X555UJ are not quite for this one.
Mine is 60nb0ag0-mb1112

I traced continuity from pin5 to this chip:

Well i'm an idiot. We know now that pin5 is ground (not pin4) so I traced a ground to a ground on a mosfet that potentially has nothing to do with the trackpad?

[steve.rand]

Re: ASUS X556UJ_MB rev 2.0 touchpad

Basically, anything to do with the trackpad in boardview is missing on this mainboard, both sides of the board, leading to the embedded controller.

i've put that little mosfet back on, but the voltages did not change.

[Til]

Re: ASUS X556UJ_MB rev 2.0 touchpad

Basically, anything to do with the trackpad in boardview is missing on this mainboard, both sides of the board, leading to the embedded controller.

i've put that little mosfet back on, but the voltages did not change.

The touchpad is really x555uj, not x555l? Same problem. The x555l is not i2c.