relies on a highly integrated SoC architecture engineered to balance space constraints and power consumption.
Find the multi-pin controller chip (usually a KB9022 or similar Compal-supported model). This chip manages power sequencing, the power button trigger, keyboard inputs, and battery communication. The boardview allows you to measure critical signals like EC_RST# or PM_PWRBTN# . 4. BIOS / SPI Flash Chip
Compal design files are generally distributed across a few distinct boardview formats, such as .BDV , .BRD , .CAD , or .FZ . To view these files, technicians rely on a handful of specialized software tools: La-c701p Rev 1.0 Boardview
Use the search function to locate specific components found in the schematic (e.g., PQ100 for input FETs).
The La-c701p Rev 1.0 Boardview also helps with upgrades and customization: relies on a highly integrated SoC architecture engineered
Every trace has a "Net Name" (e.g., +1.35V , +3V_WAKE , EC_RST# ). By copying a net name from the schematic into your boardview viewer, you can track the exact test points to place your multimeter probes. ⚡ The Power-On Sequence Diagnostic Flow
(Note: board revisions and vendor variants change exact part numbers; this is a functional breakdown.) The boardview allows you to measure critical signals
If you are working on a motherboard manufactured by Compal (a major ODM for brands like Dell, Lenovo, and HP), specifically the LA-C701P revision 1.0, you have likely hit a wall trying to find clear, actionable layout data. This article delves deep into what this boardview is, why you need it, where to find it, and how to use it to diagnose common faults like "no power," "short circuits," or "dead CPU rail."
: Focus on the input protection MOSFETs and the dedicated battery charging controller chip.
Quickly find critical power rails like +3VLP, +3VALW, and +5VALW without guessing which capacitor belongs to which circuit.
With the power completely disconnected, switch your multimeter to resistance mode (Ohms). Locate the large inductors/coils using the boardview (e.g., PL302 for 3.3V, PL303 for 5V, PL701 for CPU). Measure their resistance to a ground point. A reading below 10 Ohms on the 3.3V/5V coils indicates a severe short circuit.