The LA-E801P Rev 2.0 schematic is essential for various reasons:
: He saw the 19V primary line branch into the 3.3V and 5V "always-on" states. la-e801p rev 2.0 schematic
| Tool | Why | | :--- | :--- | | Multimeter (with mV accuracy) | Check diode drops, voltages, shorts | | 30V 5A bench supply with current limit | Safe voltage injection for shorts | | (free) | Load .brd file to locate tiny components | | Good soldering iron (tip ≤ 0.5mm) | Replace MOSFETs, resistors | | Microscope | Inspect for cracked ICs or corrosion | The LA-E801P Rev 2