Use a multimeter to check the resistance on these coils. A very low resistance (close to 0 Ohms) on a non-CPU rail indicates a shorted ceramic capacitor or a blown IC.
(also known by its project code ) is a motherboard manufactured by Compal for the Acer Nitro 5 (AN515-52/AN515-53) Acer Predator
Common Failure: Shorted input MOSFETs or a ceramic capacitor shorted to ground on the B+ line, forcing the charger's protection mechanism to trip. 2. The Always-On Rails ( +3VALW and +5VALW )
The computer does not turn on and shows no signs of life when the charger is connected. This is a very common fault, often due to a short circuit on the main power rail, a faulty charger IC (ISL88739AHRZ), or a damaged DC power jack. Use the schematic to trace the 19V path from the DC jack to the charger IC and then to the main power rails. Test the main MOSFETs (like PQ306) for shorts and check the output of the charger IC. la-f952p schematic
Measure voltage at the input current sensing resistor. Check for a short circuit to ground on the +3VALW filter capacitors. (Power brick light blinks or cuts out) Blown ceramic MLCC capacitor or shorted High-Side MOSFET.
Check the gate voltage of your first two input MOSFETs. If the gate voltage is missing, the charging IC is actively blocking power due to a detected short-circuit downstream. Step 2: Check for Shorts on Major Inductors
Whether you are a seasoned technician or a DIY enthusiast, this blueprint will enable you to read the circuit and get your device back in working order. As more repair communities share these resources, the right documentation becomes more accessible than ever. Use a multimeter to check the resistance on these coils
The schematic is typically accompanied by a ( .brd or .pdf format), which acts as a map to locate these components physically on the board. 2. Key Sections of the LA-F952P Motherboard
Keep in mind that Dell motherboards check a center data pin inside the DC jack to verify the charger wattage (PSID). If the PR resistor or protection diode on this PSID line is blown, the laptop will turn on but will display an "Unknown AC Adapter" error and refuse to charge the battery.
When searching for shorts, never plug in the stock AC adapter. Use a regulated bench power supply set to 1 Volt and limit the current to 1 Amp to prevent burning through internal PCB copper layers. Use the schematic to trace the 19V path
The LA-F952P motherboard is built to support Intel Whiskey Lake (8th Generation) Core processors. It utilizes a highly integrated system-on-chip (SoC) architecture, meaning the CPU, GPU (in UMA configurations), and Platform Controller Hub (PCH) are largely combined or closely tied together on the board.
Linear regulators remain popular for noise‑sensitive applications because of their simplicity and low output ripple. The LA‑F952P, offered by [manufacturer], combines an internal reference, error‑amplifier, and pass transistor in a compact 5‑pin SOT‑23‑5 package. Its key specifications include:
This motherboard is designed for mid-range gaming performance with the following standard configurations: Typically features an onboard Intel Core or . Graphics (GPU): Integrated NVIDIA GeForce GTX 1050 or with 4GB GDDR5 VRAM. Memory: Supports DDR4 RAM modules. Model Compatibility: Found in Acer chassis models like the , , and . Common Faults & Repair Insights
format) that map physical components on the PCB to their circuit identifiers. Where to Find the Files