Damaged charging circuit or bad battery detection line.
Liquid damage usually affects the edges of the board. The LA-E802P boardview helps you identify which small capacitors are tied to ground, allowing you to quickly find shorts without removing every component. 3. No Display
In the boardview viewer, type the component name (e.g., PL100) to immediately find it on the board.
Suppose your laptop is not charging. You look up the charging IC ( PUB1 / ISL88739A) in the schematic to find its pinout. You see that Pin 1 is DCIN .
Understanding the underlying architecture of the DKL50 LA-E802P helps isolate which circuits control specific laptop behaviors. Compal Electronics Project Name/Code: DKL50 LA-E802P Dkl50 La-e802p Boardview
If you are looking for the PCH_PWROK signal, you type it into the search bar. The Dkl50 boardview instantly highlights every pin and via on that net. If you see two green pads that should be connected but show an open circuit (OL) on your meter, you know there is a broken trace inside the board.
Before applying power, use a multimeter in resistance/diode mode. Measure the resistance to ground on all large inductors (coils). Memory rail ( +1.2V_VCCST ) CPU Core rail ( +CPU_CORE ) Graphics rail ( +VGA_CORE )
The is a widely manufactured motherboard engineered by Compal, extensively found inside the highly popular HP Pavilion 15-BS, HP 15q-BU, and HP 250 G6 laptop series . This specific platform supports a versatile range of Intel processors spanning from 6th to 8th Generation Core architectures (such as the i3-7020U, i5-8250U, and i7-8550U) paired alongside integrated or dedicated AMD Radeon M520 graphics options.
: Working on laptop motherboards involves high risks. Always disconnect the power adapter and remove the battery before performing any measurements or soldering to prevent short circuits and personal injury. Ensure you have the necessary skills and a proper ESD-safe workstation. Damaged charging circuit or bad battery detection line
The Boardview file for the LA-E802P typically comes in the following extensions: or .BRD (Standard Boardview formats) .CAD (Autodesk or specialized CAD formats) Best Software to Open the File
Use a multimeter in continuity/resistance mode to verify if the common point has dropped to 0 Ohms.
Use modern Boardview readers like OpenBoardView, as older software may struggle to render newer .CAD or .BDV file formats cleanly. Conclusion
Because these budget-to-midrange laptops see immense consumer and corporate deployment globally, component-level failures due to liquid damage, power surges, or standard physical wear are incredibly frequent. For modern diagnostic technicians, a matched with the corresponding schematic diagram serves as the indispensable blueprint required to isolate faults, trace broken traces, and execute successful logic board repairs. What is a Boardview File? You look up the charging IC ( PUB1
If you find a short circuit on +PWR_SRC , do not inject 19V immediately. Start at 1V with a current limit of 1A. Use a thermal camera or isopropyl alcohol to watch for what component heats up (usually a ceramic capacitor or a high-side MOSFET). Conclusion
The boardview software will highlight every single surface-mount capacitor linked to that 19V rail across the entire board layout.
If you find a crusty, green, or blackened resistor or capacitor with missing solder pads, search its physical location in the boardview.
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