Life long tinkerer. 33 years experience. Trying to expand my repair abilities. Thanks for the schematic. Beginning of career, did do on site component replacement, but soon after just board replacement. Now getting back into board repair and have found some useful information here. Don't let anyone know, I am a printer expert. Lots of different styles through the years, impact, ink, laser and thermal. Associates in Electronics Engineering Technology, A Plus certification, MCP, MSCE. Swore off certifications after that, realizing how it is not a good way to determine someone's capability. Seen...