The Samsung Galaxy S9 (SM-G960) Go to product viewer dialog for this item.
Check for shorts to ground on these primary capacitors surrounding the PMIC. A shorted capacitor on a 1.8V rail will pull the entire line to ground, preventing the PMIC from booting the phone. Display and Backlight Circuit samsung s9 schematic diagram
Stores electrical energy and filters noise. Marked in Farads (F, The Samsung Galaxy S9 (SM-G960) Go to product
Understanding Samsung Galaxy S9 Schematic Diagrams: A Complete Repair Guide Display and Backlight Circuit Stores electrical energy and
Connect the motherboard to your DC power supply set to 4.2V.
The main Power Management IC (PMIC)—often designated as or MAX77705/S2MPS18 —is the heart of the power distribution system. It takes raw battery voltage ( V_BAT or V_SYS ) and steps it down or boosts it into dozens of smaller voltage rails required by the CPU, RAM, and storage.
: You then use a multimeter to check for the correct voltage or resistance at designated test points to confirm if the part is defective.