Measure the signal going to the KBC ( 9022Q9022 cap Q
In the world of micro-soldering and laptop repair, the BDL51 LA-D711P Rev 3.0
UMA (Unified Memory Architecture) using Radeon R4 or R2 series graphics. bdl51 lad711p rev 30 schematic work
Shows the exact physical location of components (resistors, capacitors, MOSFETs) on the board.
The is a motherboard produced by Compal, primarily found in the HP 15-BA series and HP 255 G5 laptops. Finding the exact revision 3.0 schematic can be challenging, as technicians often use the BDL50 LA-D704P schematic as a close reference for power rail troubleshooting. Core Technical Specifications Measure the signal going to the KBC (
To begin troubleshooting, you will need two essential files:
Troubleshooting:
Before diving into the schematic, perform a basic hardware triage to narrow down the fault area:
[VIN / 19.5V] ---> [BQ24735 Charger IC] ---> [+B / 19.5V System Rail] │ ┌──────────────────────────────┴──────────────────────────────┐ ▼ ▼ [+3VALW / +5VALW Always-On] [Memory & Core Rails] PWM Controller: SY8286BRAC & SY8288CRAC +1.2V_DEEP_SUS / +VCC_CORE The DC-In and Charging Circuit (+B) Finding the exact revision 3