Miscellaneous
The is a motherboard primarily used in HP 15-BA , HP 15-AY , and HP 255 G5 laptop series. Because official schematics for this specific revision can be difficult to find, technicians often refer to the highly similar LA-D704P or LA-C801P schematics for cross-reference. 1. Initial Diagnostic Steps bdl51 lad711p rev 30 schematic work
Check the memory power rail () to ensure it reads +1.35V . Miscellaneous The is a motherboard primarily used in
: Use a multimeter in continuity mode to check large coils for shorts to ground. A "0Ω" reading or beep typically indicates a shorted power rail. 2. Key Voltage Rails & Signals Initial Diagnostic Steps Check the memory power rail
Check the ADP_ID pin. If the charger identification signal is missing or incorrect, the board will not initiate charging or power-on. Standby Voltages (LDO & Always-On) The standby controller is typically the RT8243A . Check for LDO3 (3.3V) on Pin 15 and LDO5 (5V) on Pin 14.
To effectively work with the BDL51 LA-D711P schematic, you will need more than just a screwdriver. Here is a basic list of required equipment: