The main power highway entering from the DC jack. Where to check: Probing input MOSFETs PQ101 and PQ102 .
The LA-C701P board is known for specific failures. Use the patched boardview to locate these components:
Necessary if the patched file is in the native .brd format from Cadence. Cross-Referencing with the Schematic lac701p rev 10 boardview patched
The primary power rail ( +19V or +PWR_SRC ) frequently shorts to ground due to a failed ceramic decoupling capacitor.
Boardviews help locate tiny surface-mount components (SMD) like resistor RC236 near the crystal, which are often difficult to find without a visual map. Accessing the Tools The main power highway entering from the DC jack
: Available in both UMA (Integrated) and Discrete (Nvidia N16V-GM-S) configurations. Controller : Uses the NPCE285P B2 EC/KBC chip. Common Faults and Troubleshooting with Boardview Technicians often use the LA-C701P boardview to resolve specific documented failures: 1. The "No Power" / RTC Section Failure
A common issue involves the board failing to trigger due to a fault in the section. Using the boardview, you can pinpoint the RTC crystals and resistors to check for the required 32.768 kHz oscillation or proper voltage levels at the PCH. 2. Missing LDO and 3.3V/5V "Always-On" Lines Use the patched boardview to locate these components:
Check the MOSFETs near the DC-in or USB-C connector. If the laptop won't turn on, use the boardview to trace the 19.5V (or 20V) main power rail.
Standard HP 15-inch laptop motherboard with a dedicated power button board and separate DC jack connection. Common Faults and Repair Focus
A is a community-modified or verified file where senior repair technicians have manually corrected these errors. Using a patched file ensures that when you test a test point for voltage, you are actually probing the line your software claims it is, preventing misdiagnosis and accidental component destruction. Key Power Rails to Map on the LA-C701P