Apologies for the late reply… I did figure out that I had a bridge somewhere in the left row of pins on the TVP7002 (presuming the LCD side is “top”). I more or less destroyed all 3 chips tracking that down since I don’t have a clean way of removing them. (I might need to bite the bullet and invest in hot air.)
I got a fresh board and my second attempt was better in that all the voltage regulators are connected correctly and outputting the correct voltage, but I must have a problem somewhere else because the LEDs don’t turn on and the LCD backlight is very dim. I saw marqs gave some good suggestions on “LIGHTS ARE ON, BUT NOBODY’S HOME” that I am going to investigate before I start a new topic asking for help.