I'm getting 4.1v at TP1 on the regulator board. The supply: unreg 11.9v at TP5 is low at 11.3v ... but this shouldn't matter, right? The 5v regulator should take care of that I assume. I replaced every component in the regulator circuit, (5v regulator, resistors, caps) but still 4.1v persists. I even disconnected all other connectors but J3 on the reg board. Could this be ground related... is there a ground mod I should have done on the boards? Or perhaps is this really related to the low 11.9v?
The reg board is an AS-2518-22
Any input is appreciated.