The designation is crucial. Motherboards often go through multiple revisions to fix design flaws, change component suppliers, or improve power delivery. A Rev 2.0 board will have different trace layouts, resistor values, or voltage regulator controllers compared to Rev 1.0 or Rev 3.0. Using the wrong schematic can lead to misdiagnosis, short circuits, or irreversible damage.
The LA-E801P Rev 2.0 is a combination power supply and LED driver board (often referred to as a PSU/Inverter combo). It is typically found in 32-inch to 43-inch LED televisions. While it may be labeled under different brand names depending on the TV manufacturer (often rebranded by Chinese OEMs), the board designation "LA-E801P" remains consistent.
Check the BQ24780S (or similar) charging chip. If this chip is faulty, it will prevent the motherboard from drawing power from the adapter. la-e801p rev 2.0 schematic
The acts as the roadmap for the circuit. It allows a technician to:
Technicians often find 19V reaching the first MOSFET, but failing to pass through due to faults in components like (often identified as a dual transistor). The Missing Display: The designation is crucial
Only partially. Power delivery (DC-In, system rails) is often similar, but the CPU/PCH section and resistor values may differ. Always try to match the revision number exactly.
In the world of LCD/LED TV repair, the power supply board is often the primary point of failure. Among the myriad of board models circulating the repair market, the stands out as a widely used chassis, found inside various television brands and models. For any electronics technician, possessing the schematic diagram for this board is not just a convenience—it is a necessity for efficient and accurate repair. Using the wrong schematic can lead to misdiagnosis,
Uses controllers like the TPS51275B for the 3.3V and 5V power rails.