Compal schematic for the HP ProBook 440 G2, mainboard LA-B181P at revision 0.5, provided as a roughly 2 MB PDF. Revision 0.5 is an early issue, so component values or layout may differ from production boards; compare with the revision printed on your PCB. Compal's LA numbering identifies the ODM design used by HP here. The pages are useful for tracing power sequencing, checking rails such as the always-on and system supplies, and finding where a short to ground originates. Opens in any PDF viewer.
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