: Usually found on the first few pages, this list tells you which voltages should be present in "S5" (Shutdown), "S3" (Sleep), and "S0" (Working) states. If you're missing a rail like +3VALW or +1.0V_Core , this table is your roadmap.
Controlled by a dedicated charging IC (such as a multi-pin Intersil or Texas Instruments chip), this section manages the switching between DC charger power and battery power. It includes isolation MOSFETs that prevent reverse voltage damage. 🔧 Common Fault Diagnostics Using the Schematic la-d402p schematic