LG Plazma T.V.

Model # 42PX4RVC-MC, chassis # RF-052C, dead, plug in, after a few seconds, the standby led comes on red, @ turn on it turns yellow for a few seconds, then green for a few seconds, then back to red, & dead. The B + indicator diodes do as follows: d1003 is always red, d1104 is bright red @ turn on, d1102, & d1103 are dim @ turn on, & d1101 is bright @ turn on, then slowly dims. Have no info on these units, & nothing online. After talking to a LG Tech at the factory, he said to change all three power boards as a kit. Seems like they don't even know exactly what's wrong with these units. Expensive repair. Has anyone actually repaired the one board that is likely bad, or are no individual parts available for the boards? Dani.

Not to mention some serious reverse engineering as getting a schematic for these units is nearly impossible as they are board level repair and the service manuals do not contain the schematic.