Re: LG Plasma – 2/20 point controls did not work
Mark, you might try going to LG’s website and see if there is a firmware set that you can download and install via the USB port on the unit.
But it strikes me that requiring 4 boards to fix a problem is ridiculous. That almost always means the “tech” really had no idea what he was doing. Add to that, the fact that LG practically NEVER issues a replacement part withe exact same part number as the original. This seemed to be especially true for Digital Main boards, which is where the firmware resides. It’s almost always a radically different part number, yet it’s physically the same and usually has the right firmware, if sent as a replacement. But not always, and this sounds to me like exactly what you have.
And yeah, I would agree with Gregg that this is the previous servicer’s responsibility, but good luck with that.