schematic for repairs, focus on these critical sections typically found in Compal engineering documents:
Modern laptops use complex power states. The schematic clearly defines lines like +3V_G3 , +5V_ALW , and +CPU_CORE , telling you exactly what voltage to expect at specific test points. i laj494p schematic better
: Verify that the primary input voltage passes cleanly through the first and second input isolation MOSFETs. If the voltage drops immediately after the first MOSFET, look for a short circuit further down the main power rail. schematic for repairs, focus on these critical sections