LA-D704P REV 4.0, Model hp-15-bd003tx-BDL50 Checks for no display, no power, signal and voltage solution
Initial Diagnosis : Firstly connects the motherboard to a DC power supply, observing a 0 amp reading, indicating no power. They then use a multimeter in diode mode to check for any impedance issues or shorts across various PWM coils and the BIOS chip. Checking 19V and 3V/5V Rails (3:45-4:10): The first step in troubleshooting … Read more