[SOLVED] HDMI pinout issue

[rogerpaudex]

Hi,
I'm testing the pin of the of Flat Ribbon Cable and it's working with my screen and camera.
But the pinout of the cabble doesn't seems to be the same as here: https://www.mouser.com/images/microsites/usb-type-c-hdmi-f2.png?
Because just by testing the 4 ground pins it seems that they are shifted (on pin 4,7,10,13 instead of 2,5,8,11).

Does anyone know why?

 

[LORDPrometheus]

Well that's because your diagram is for HDMI without Ethernet IE pre gen 1.4 while the current cables have Ethernet functionality and as a result a few pins changed. Check this diagram to see the comparison https://www.multicominc.com/wp-content/uploads/HDMI-cross-section-comparison_M.jpg

 

[rogerpaudex]

On your comparison diagram, it shows that on both cases the ground pins are 2, 5, 8, 11.
So it doesn't explain what I've measured (ground pins are 4,7,10,13). Do you know why? It was a measurement on a micro-hdmi connector.

 

[LORDPrometheus]

On your comparison diagram, it shows that on both cases the ground pins are 2, 5, 8, 11.
So it doesn't explain what I've measured (ground pins are 4,7,10,13). Do you know why? It was a measurement on a micro-hdmi connector.

Ah i see what it is you are using a type-D micro HDMI connector i thought you had a type-C micro HDMI! sorry its early here is the pinout for a type-D connector. https://pinoutguide.com/visual/gen/micro_hdmi_type_d.jpg

 

[rogerpaudex]

Thanks LORDPrometheus! I wasn't aware yet of this pinout difference! Solved!