New control board has small greenlight but no power

Brand: GE
Model Number: GDT655SMJ5ES Serial: ZL804510B
Main Symptom: No power on the control panel bought a new control board hoping it would fix the issue but to no avail.
What happens & when: No power

Error Code (if any): NA
Parts or tests already tried: Installed the board has solid greenlight.
Photos / video link:

Check at the J722 between the Black/green to the yellow/blue wires. There should be 13.5 VDC. If there is then check the wiring harness between the board and the UI. If this is good then the UI board would be the issue.

https://www.appliancepartspros.com/ge-configured-ui-board-wd21x31902c-ap7218676.html