Lad711p Rev 10 Schematic Top !new! Official
This represents the absolute "top level" of the system design. It details how the main processor connects to the RAM, the display panel via LVDS/eDP, the SATA drives, the wireless cards, and the audio chips. It provides a bird's-eye view of bus widths and clock distributions.
[DC Jack (19.5V)] ---> [ADP_ID Verification] ---> [Isolation MOSFETs] ---> Main Rail (+B+ / VIN) | [Standby Regulator (RT8243A)] <-------+ | +---------------------+---------------------+ | | Linear LDOs (3.3V / 5V) Switching Rails (3V_ALW / 5V_ALW) Practical Troubleshooting Guide for the LA-D711P
When reviewing the "LA-D711P Schematic Top," look for the following signals if the laptop is "dead": Located near the DC jack. Check PU301PU301 (Charger IC): Verifying input ( VDCcap V cap D cap C ) and output ( ACINcap A cap C cap I cap N Check BIOS Chip ( ): Located near the APU, verifying 3.3V on pin 8. 5. Where to Find LA-D711P Resources
: The revision number indicates the version of the document or design. Rev 10 suggests that there have been 10 iterations or updates to the design or documentation. This could reflect changes in components, improvements in design, corrections of errors, or updates to comply with new standards.
The voltage from the DC power adapter (+DC_IN) passes through two protection MOSFETs controlled by the charging IC (often a BQ-series controller). Once validated, it becomes the or +PWR_SRC rail. This rail distributes 19V across the entire top layer of the motherboard to feed all step-down switching regulators. 2. The Always-On Rails (+3VALW / +5VALW) lad711p rev 10 schematic top
Engineers frequently reference the LAD711P schematic to solve common hardware defects:
: For those in India, vendors on IndiaMART such as Anmol Chipsoft or Caviar Enterprises LLP list this specific board.
Located on the top left or top right corner, crucial for display issues. Battery Connector: Situated at the bottom edge. 3. Key Power Rails in the Schematic
In Sony CRT service manuals, revisions often indicate a running production change. For the LAD711P power supply circuit, Rev 10 (and surrounding revisions) typically addressed and thermal stress on the Horizontal Output Transistor (HOT) and the flyback pins. This represents the absolute "top level" of the
is a highly common Compal-manufactured laptop motherboard used across a broad range of mid-range powered by AMD A-Series, E2, or A8 processors. Navigating a complete board repair or diagnosing power sequencing issues on this platform requires a solid comprehension of its schematic layout.
: Features a common dual Schottky diode (often labeled PD7 ) near the charger chip for power supply protection.
: The areas near the touchpad connector and the audio jack are highly susceptible to trace oxidation if liquids spill onto the laptop keyboard.
, focus on these critical sub-circuits usually found in the schematic: [DC Jack (19
: Often associated with HP Spare Part Numbers like 858589-601 or 854968-601 . Purchasing and Repair
Micro-soldering specialists often target PD7 , a dual Schottky common-cathode protection diode located near the charger controller that frequently fails due to external voltage surges. 3. Peripheral Headers & Core Storage Ports
The LA-D711P Rev 1.0 (BDL51) Go to product viewer dialog for this item.
