: Use the boardview to safely locate the source, gate, and drain pads of the two primary DC-in MOSFETs. If the gates fail to receive their required turn-on bias voltage from the charging IC, the main power rail (+19V) will stay isolated, disabling the laptop entirely. 2. Always-On Standby Power Supply (+3.3VALW / +5VALW)
The laptop does not power on; the power adapter LED may flicker or turn off when plugged into the laptop. La-c701p Rev 1.0 Boardview
Determine component values (e.g., finding the capacitance of a specific capacitor) by clicking on it. : Use the boardview to safely locate the
: Typically available in .cad , .brd , .bvr , or .fz formats. Technical Overview of the La-C701p Motherboard Always-On Standby Power Supply (+3
Find the multi-pin controller chip (usually a KB9022 or similar Compal-supported model). This chip manages power sequencing, the power button trigger, keyboard inputs, and battery communication. The boardview allows you to measure critical signals like EC_RST# or PM_PWRBTN# . 4. BIOS / SPI Flash Chip