If I go to the trouble and expense of restoring a panel I will remove the circuit boards and clean EVERYTHING. The ground is chassis and relies on the copper trace under the boards attaching screws contacting the underside of the screw heads.
I appreciate the effort in your numbers but...Its alot easier for me to see the front side of the panel too in determining what is illumiation and what is indicater.
Beware the one you,ve marked 'C' . That end of the board overhangs the potmetal housing and is easily broken
You have the noise suppression capasitor connected to wrong post also.
The plastic post cover at fuel gauge is correct and that wrong connection should be right beside that plastic cap. :)
