[Power DC Jack Input] ──> [First & Second MOSFETs] ──> [Main 19V Rail (B+)] │ ┌─────────────────┴─────────────────┐ ▼ ▼ [3.3V/5V Standby IC] [RAM / CPU / GPU Rails] │ │ ▼ ▼ [Super I/O Chip] [Power-Good Signals] 1. Trace the Primary Power Rail (B+ / VIN) If the device is completely dead and draws zero current: Find the charging circuit page in the PDF.
Ensure the revision number (e.g., Rev 1.0, Rev 2.0) matches your board exactly, as components and power rails often change between production runs. --- Hsb J Mv-6 94v-0 E89382 Schematic Pdf
The schematic map outlines how the main DC input voltage (usually 19V for laptops or 12V for desktops) steps down into lower voltages. Use your multimeter to check the baseline rails: [Power DC Jack Input] ──> [First & Second