Click the pins of PQ301 and PQ302 (input MOSFETs) to trace the 19V path ( VIN ). The patched file accurately highlights the gate control lines leading back to the charging IC. 2. Missing 3.3V and 5V Always-On Rails
Ultimate Guide to Using and Troubleshooting the LA-C701P Rev 1.0 Patched Boardview lac701p rev 10 boardview patched
How the boardview helps : Locate the charger IC (PU201, bq735 or bq725A) and sense resistors. Use the boardview to identify voltage measurement points around the charging IC and trace connections to the battery connector. Click the pins of PQ301 and PQ302 (input
lines of the BIOS chip to ensure proper communication during flashing. B. Power Rail Bypass (The "3V/5V" Patch) A frequent failure on this board is the SY8208B/SY8208C (TPS51225 compatible) buck regulators. Modification: lac701p rev 10 boardview patched