Laf952p Rev 10 Boardview Exclusive -

Locate the entry MOSFETs (often labeled PQ series). Check the gate voltage. If the gate is not being driven high by the charging IC, the 19V rail will not propagate past the first isolation FET. 2. Always-On Standby Rails (+3VALW / +5VALW)

If any always-on rail reads close to 0 Ohms, use the boardview to isolate the components attached to that net. Step 2: Tracking the Charging Circuitry laf952p rev 10 boardview exclusive

An open-source, highly compatible program favored by modern repair technicians for its speed and multi-platform support. Locate the entry MOSFETs (often labeled PQ series)