Lah931p Boardview -

The primary power rail ( +19V or +19.5V from the DC jack) distributes power to all voltage buck regulators. If a ceramic filtering capacitor shorts to ground, the entire board shuts down to protect itself.

Set your digital multimeter to Resistance/Diode mode. Place the black probe on chassis ground and use the red probe to test all major inductors. Note down any rail showing 0 Ohms. lah931p boardview

A widely used, free software that supports various boardview formats, including .brd and .cad . OpenBoardView: An open-source alternative. Steps to Use the Boardview: The primary power rail ( +19V or +19