[Schematic] Lenovo V560/B560 - Wistron LA56 (10203-1 48.4JW06.011)
Together, the code tells us that the schematic is the , concerning a Logic Amplifier board (LA56) , main‑board version MB , revision 48.4 , authored by JW in June 2011 . This contextual information is essential for parts procurement, change‑control, and cross‑referencing with firmware or mechanical drawings. 10203-1 la56 mb 48.4jw06.011 schematic
: Available in both Integrated Intel HD and discrete NVIDIA GeForce 310M (512MB DDR3) variants. [Schematic] Lenovo V560/B560 - Wistron LA56 (10203-1 48
| Segment | Likely Meaning | Rationale | |---------|----------------|-----------| | | Project or drawing number | Companies often allocate a five‑digit series to a family of products; the “‑1” typically indicates the first revision of that drawing. | | LA56 | Sub‑system or board code | “LA” may denote a “Logic Amplifier” or “Local Array” module, while “56” is the internal part number. | | MB | Mechanical/Board version | “MB” is a common suffix for “Main Board” or “Motherboard” revision. | | 48.4JW06.011 | Revision, date, and version stamp | The “48.4” could be a revision level, “JW” the initials of the lead designer (e.g., John W.), “06” the month (June), and “011” the year 2011. | | Segment | Likely Meaning | Rationale |
If the laptop fails to trigger, the schematic points technicians to the . This signal must drop to 0V and return to 3.3V when the button is pressed to initiate the boot sequence. Common Failure Points on the LA56 Motherboard
Each block is interconnected through a well‑controlled ground plane and a series of decoupling capacitors (C7‑C20) that suppress high‑frequency noise, a crucial design practice for mixed‑signal systems.