The LA-C701P motherboard powers several popular HP 15-series laptops running Intel Broadwell ULV processors and DDR3L RAM. These boards are highly susceptible to:
– Some original files have incorrect reference designators (e.g., PR123 instead of PR125 ). The patch corrects these to match the silk screen on the actual PCB.
Hosted as LA-C701P Boardview and Schematic and LA-C701P Schematic . lac701p rev 10 boardview patched
Inject 1V–2V onto the shorted rail. Use your patched boardview to highlight the entire +PWR_SRC net. Touch the highlighted components or use a thermal camera to spot the capacitor that is glowing hot. 2. Missing 3.3V and 5V Always-On Rails
: If you aren't familiar with this specific board, click on any block in the boardview to see its net connections and trace where signals like PCH_RSMRST# or PM_SLP_S3# originate. 3. Common Faults on LA-C701P The LA-C701P motherboard powers several popular HP 15-series
For a technician diagnosing a short circuit, a missing voltage, or a cracked component, a BoardView file is invaluable. It allows you to:
If the internal LDO of the regulator fails, technicians may "patch" the circuit by injecting an external 3.3V/5V signal to the (Enable) pins to jumpstart the power sequence. Visual Check: The boardview identifies the exact vias for the signal, allowing for precise soldering of jumper wires. C. Discrete to UMA Conversion Hosted as LA-C701P Boardview and Schematic and LA-C701P
A lightweight, open-source application preferred by many repair technicians. How to Get Your Files
Because you are using a patched file, the pinouts for the KB9022Q will be explicitly labeled, allowing you to place your multimeter probe accurately on tiny pins without bridging them. Step 3: Resolving Liquid Damage Corroded Traces
The LA-C701P (often branded as AAL10) is a widely deployed laptop motherboard manufactured by Compal. It is most commonly found in budget to mid-range Dell Inspiron laptops, such as the Dell Inspiron 14 (3458) and Inspiron 15 (3558) series, typically powered by Intel Broadwell or Haswell processors. Key Specifications Compal Project Name: AAL10 PCB Code: LA-C701P Revision 1.0
If you are currently troubleshooting this specific motherboard, let me know: