10203-1 La56 Mb 48.4jw06.011 Schematic -

Co-layout design that may feature either UMA (Integrated Intel HD Graphics) or Discrete (NVIDIA GeForce GT 525M) configurations. Form Factor: Standard 15.6-inch laptop board layout. Troubleshooting with the Schematic

Dual-channel DDR3 SO-DIMM slots (supporting up to 8GB or 16GB depending on BIOS/CPU limits).

: Integrated NVIDIA GeForce G310M with 512MB/1GB VRAM. Integrated : Intel HD Graphics (built into the CPU). 10203-1 la56 mb 48.4jw06.011 schematic

The is a specific motherboard used in the Lenovo IdeaPad B560 and V560 laptop series. This board is a popular target for repair and refurbishment, often involving a "story" of reviving aging but capable hardware. Motherboard Overview & Use

Test for 19.5V on the current sensing resistor immediately after the entry MOSFETs. Co-layout design that may feature either UMA (Integrated

Always start on page 2 or 3. The block diagram maps out how the CPU, PCH, RAM, and EC (Embedded Controller) communicate. It lists page numbers for every sub-circuit. Signal Naming Conventions:

If these voltages are missing, check the (Enable) pins and look for a physical short to ground on the output inductors. Phase 3: The Embedded Controller (EC) Handshake : Integrated NVIDIA GeForce G310M with 512MB/1GB VRAM

Always-on power rails (S5 state) generated by the primary PWM controller (often a TPS51125 or equivalent). Memory power rail (DDR3 VCC) active in S3 and S0 states. 1.05V_PCH Power supply for the Intel HM65 Platform Controller Hub. VCC_CORE Variable (~0.8V - 1.2V)

Turn the laptop over, remove the bottom cover, and look for "10203‑1 LA56 MB" or "48.4JW06.011" printed on the PCB.

Laptop motherboards use step-down buck regulators to convert the high voltage from the charger (usually 19V) into lower voltages required by various chips. On the 10203-1 LA56 schematic, these are grouped into distinct power states (S5, S3, S0). Power Rail Name Voltage Level Description / Purpose Main raw power input from the AC adapter. BT+ ~10.8V - 12.6V Battery power rail. SYSTEM_3V_5V 3.3V & 5.0V

When troubleshooting a dead 10203-1 motherboard, the first step is analyzing the DC-in and primary power generation circuits. DC-In and First-Stage Protection The voltage enters through the DC jack () at 19.5V.