Tpv56pb801 Schematic Diagram Exclusive Better Online

TP.V56.PB801 is a widely used "three-in-one" universal LED TV motherboard that integrates the power supply, LED backlight driver, and signal processing (mainboard) into a single unit. Finding an "exclusive" or detailed schematic is essential for technicians because this board is a common replacement part for various 32-to-50 inch TV brands. Key Technical Aspects Integrated Design

• Input Filtering & Rectification: The schematic details a standard EMI filter network (fuses, varistors, X/Y capacitors) followed by a bridge rectifier. This converts AC mains to high-voltage DC (approx. 300V–330V).
• PWM Controller: The diagram identifies the Pulse Width Modulation (PWM) chip (commonly an OB2263 or FAN6755 equivalent). The schematic illustrates the feedback loop (Optocoupler and TL431 precision shunt regulator) which is vital for maintaining stable voltage rails.
• Standby Circuit: A critical section in the schematic is the 3.3V Standby rail. The diagram traces this directly to the MCU, indicating that if this rail fails, the unit is completely "dead" with no standby light.

Display Support: The board supports various output protocols, including LVDS and eDP, allowing it to interface with many different panel types. tpv56pb801 schematic diagram exclusive

| Block | Function | Key Components | | :--- | :--- | :--- | | EMI/Standby | Filters AC noise; generates 5V Standby (5VSB) | T3.15A fuse, Viper22A (IC901), Transformer T901 | | Main PFC | Boosts DC bus to 380V-400V | L6562D (IC601), Power MOSFET Q601, D601 | | Main Switcher | Produces 12V, 24V for main board & audio | NCP1200 (IC201), Transformer T201 | | Inverter | Drives CCFL backlight tubes (20+ lamps) | OZ964 (IC701), MOSFETs Q701-Q704, High-voltage transformers | Input Filtering & Rectification: The schematic details a

Common Failure: If the TV has sound but no picture, check the boost inductor and the MOSFET in this section for shorts. 4. Software and SPI Flash including LVDS and eDP

The TP.V56.PB801 is a widely used "three-in-one" universal LED TV motherboard that integrates the main logic board, power supply, and backlight driver into a single unit. Technical Specifications

Common Failure Points (Mapped to the Schematic)

You don't need to reverse-engineer the board. Here are the top 3 failures mapped directly to component IDs from the exclusive schematic.