HP 15 ax240tx DAG35AMB8E0 Schematics & Boardview

HP 15 ax240tx DAG35AMB8E0 schematics, boardview, bitmap, and PCB layout files are available for laptop repair technicians working on board-level diagnostics, power rail tracing, and component-level fault finding. These files provide the reference data needed to follow the power-on sequence, locate failed components, and verify voltages against the designed values.

HP 15 ax240tx DAG35AMB8E0 Hardware Solutions

HP 15 ax240tx DAG35AMB8E0 No Power and Dead Board Solution

this device completely dead, no power light, and no standby voltage diagnosis.

HP 15 ax240tx DAG35AMB8E0 DC Jack and Charging Port Solution

this device DC jack replacement, adapter detection, and charging port faults.

HP 15 ax240tx DAG35AMB8E0 Charging IC and Battery Solution

this device battery not charging, charging IC faults, and battery detection circuits.

HP 15 ax240tx DAG35AMB8E0 Power Sequence Solution

this device S5 to S3 to S0 power-on sequence, enable signals, and power good lines.

HP 15 ax240tx DAG35AMB8E0 EC Embedded Controller Solution

this device EC chip faults, EC firmware, and power button signal tracing.

HP 15 ax240tx DAG35AMB8E0 CPU Core Voltage and VRM Solution

this device VCCIN rail, CPU VRM circuit, and core voltage not generating.

HP 15 ax240tx DAG35AMB8E0 RAM and DDR Voltage Solution

this device no boot with RAM installed, DDR VTT and VREF rails, and slot repair.

HP 15 ax240tx DAG35AMB8E0 PCH and Chipset Solution

this device PCH faults, chipset reballing, and platform clock issues.

HP 15 ax240tx DAG35AMB8E0 LCD Display and eDP Solution

this device no display, eDP and LVDS signal tracing, and panel connector faults.

HP 15 ax240tx DAG35AMB8E0 LCD Backlight Solution

this device dim screen, backlight driver circuit, and LED boost converter repair.

HP 15 ax240tx DAG35AMB8E0 Graphics and GPU Solution

this device GPU faults, dedicated graphics power rails, and external monitor output.

HP 15 ax240tx DAG35AMB8E0 Keyboard and Touchpad Solution

this device keyboard not working, touchpad faults, and FPC connector repair.

HP 15 ax240tx DAG35AMB8E0 USB and Type-C Port Solution

this device USB ports not detecting, Type-C circuit, and port power faults.

HP 15 ax240tx DAG35AMB8E0 Audio Codec and Speaker Solution

this device no sound, audio codec faults, and speaker amplifier circuits.

HP 15 ax240tx DAG35AMB8E0 WiFi Bluetooth and M.2 Solution

this device wireless card not detected, M.2 slot power, and antenna circuits.

HP 15 ax240tx DAG35AMB8E0 LAN and Ethernet Solution

this device Ethernet port not working, LAN controller, and magnetics faults.

HP 15 ax240tx DAG35AMB8E0 SSD NVMe and SATA Solution

this device drive not detected, NVMe and SATA slot power rails, and data lines.

HP 15 ax240tx DAG35AMB8E0 Fan and Thermal Shutdown Solution

this device fan not spinning, thermal sensor faults, and overheating shutdown.

HP 15 ax240tx DAG35AMB8E0 RTC and CMOS Battery Solution

this device time reset, RTC circuit, and CMOS battery voltage faults.

HP 15 ax240tx DAG35AMB8E0 Webcam and Card Reader Solution

this device webcam not detected and SD card reader circuit repair.

HP 15 ax240tx DAG35AMB8E0 Component Names and Test Points

Identify this device motherboard components, reference designators, and test points.

Motherboard Diagram and Circuit Information

The motherboard's power distribution is controlled by the embedded controller, which releases the power-good chain once the voltage regulator module (VRM) generates VCCIN. The 3V and 5V always-on rails come online in a specific order, with the 5V rail powered on before the 3V rail. The power-on sequence is critical, as it determines the order in which components are powered up.

Schematics File

The laptop schematics file provides a detailed electrical diagram of the motherboard, allowing technicians to plan repairs and diagnostics. By following the power-on sequence from the adapter to the CPU, technicians can identify the components that require power to function correctly.

Follow the power-on sequence from the adapter to the CPU
Trace always-on rails, enable lines, and power-good signals
Identify the component behind a shorted or missing rail
Check EC, PCH, and clock connections against the design
Plan component-level repairs using pinout and net data

Boardview and Bitmap

The boardview and PCB layout files offer a visual representation of the motherboard's physical layout, allowing technicians to quickly locate a component by reference designator. This information can be used to identify the side of the board a component sits on and trace a net to every pad it touches.

Find any component by reference designator in seconds
See which side of the board a part sits on
Trace a net to every pad it touches
Cross-reference the schematic with the physical layout

Common Faults on This Board

Common faults on this class of board include no power, no display, not charging, and a dead laptop after liquid damage. These faults often require board-level repair techniques to identify and fix the underlying issue.

Why These Files Matter

The availability of accurate schematics, boardview, and bitmap files is crucial for laptop repair technicians. With these files, technicians can quickly diagnose and repair issues, reducing the need for guesswork replacements and improving repair success rates.