Tp.v56.pb801 Schematic Diagram -
TP.V56.PB801 is a widely used "three-in-one" universal LED TV motherboard that integrates the power supply, LED backlight driver, and TV tuner into a single PCB. It is a staple in the repair industry for reviving 32-inch to 46-inch LED TVs from brands like Orion, Elenberg, and Erisson. Core Architecture & Schematic Highlights
- 5V Rail: Generated for USB interfaces and standby circuit logic.
- 3.3V Rail: Powers the Flash memory (EEPROM) and other logic peripherals.
- 1.2V/1.1V Rail: Dedicated power rail for the MCU core processing.
- Key IC: A PWM controller like NCP1251, FA5641, or LD7575.
- Outputs: Generates +12V for the audio amplifier and panel logic, and sometimes +24V for backlight (though the Tp.v56 often uses a separate boost section).
- Schematic detail: Look for the main transformer (T1), the rectifying Schottky diodes (SB5100 or similar), and the voltage divider resistors feeding back to the PWM IC. The diagram will also show enabling signals (PS-ON) from the main processor.
- TP.V56.PB801 – Board model number
Upon closer inspection, the Tp.v56.pb801 Schematic Diagram reveals a complex network of components, including: Tp.v56.pb801 Schematic Diagram
Thermal Management
: Modern layouts include flat heat sinks and high-thermal-conductivity paste to manage heat from the main processor. Common Repairs and Troubleshooting 5V Rail: Generated for USB interfaces and standby