PDF sheet of voltages from a working TCOM board, the Portuguese title meaning voltages while running, about 225 KB. The name gives no model or board revision, so confirm the board matches by comparing its layout and markings with the images in the document. Known good readings like these help pinpoint a dead regulator, missing standby rail or faulty backlight supply by comparison with a defective unit. Take measurements in the same operating state as the reference, keeping the meter ground on a reliable point.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @oficinacomputadores. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.