This guide provides an overview of the TP.MT5510I.PB805 smart TV motherboard, commonly used in Android-based LCD/LED televisions. It is often compared to or used interchangeably with the TP.MT5510I.PB801, with similar schematics. AliExpress TP.MT5510I.PB805 Board Specifications Board Type: Smart TV Main Board (Combines mainboard and power board). Resolution Support: Typically supports HD and Full HD panels via LVDS. Processor: Powerful processor for streaming and smart TV functions. Functions:
High-definition video playback, smart TV functionality, and energy-efficient design. Main Components:
High-quality components for stable power supply and performance. AliExpress Key Sections of the Diagram/Schematic
When examining the TP.MT5510I.PB805 schematic (similar to PB801,), focus on these areas for repair: Power Input (AC/DC Section):
Identifies the main power supply components converting AC to DC. Power Regulation (DC/DC Section):
Shows the buck converters generating 12V, 5V, 3.3V, and 1.2V for the main processor and memory. EMMC/Flash Memory Circuit:
Crucial for troubleshooting startup/logo issues. The schematic shows connections to the NAND flash. LVDS Panel Connector: Connects the main board to the LCD panel. Backlight Driver Section: Controls the LED backlight strip power. Troubleshooting Points Dead Set (No Power): Tp.mt5510i.pb805 Diagram
Check the standby voltage (3.3V) and main 12V supply at the PWM controller section. Stuck on Logo:
Re-flash the firmware, focusing on the EMMC connection points. No Backlight:
Test the voltage output on the backlight connectors using the schematic for pinout reference. Schematics & Firmware:
You can find the PDF diagram by searching for "TP-MT5510I.PB801 Schematic Diagram" on Scribd. ISP Connection Points:
For programming the firmware, ISP points are available in specialized service forums like onetv-srt.com
Disclaimer: Repairing TV mainboards requires knowledge of electronics. Ensure the power is unplugged before touching the board. The tested LCD TV motherboard TP.MT5510I.PB805 works well This guide provides an overview of the TP
The TP.MT5510I.PB805 is a highly versatile, "three-in-one" smart Android TV motherboard designed to integrate the main processor, power supply, and LED backlight driver into a single PCB. Widely used in 32-inch to 43-inch LED TVs from brands like VU and Mastertech, this board is a common choice for both original manufacturing and universal repairs due to its robust 4-core processor and built-in WiFi. Technical Specifications
The board typically runs on Android 7.0 and is optimized for Full HD (1920x1080) panel resolutions. CPU: Quad-core Mediatek (often identified as MT5659QHMT). Memory: 1GB RAM and 8GB EMMC Storage. Power Supply: Integrated power module with a 45W rating.
Backlight Output: Variable voltage range between 58V and 87V, with a current output of approximately 520mA to 600mA.
Connectivity: Built-in WiFi, RJ45 Ethernet port, multiple HDMI ports, and USB inputs. TP.MT5510I.PB805 Diagram and Pinout Details
While a complete schematic for the PB805 variant specifically is often proprietary, it shares a nearly identical architecture with the TP.MT5510I.PB801, which is widely documented.
Power Section: The AC input is protected by a 3.15A/250V fuse. The primary side converts AC to a stable DC voltage (usually 12V for the main system and a higher boosted voltage for the LED backlight). Winding A: Provides the main 12V rail (for
Backlight Driver: Features a boost circuit that adjusts according to the panel's requirements. Key test points include BL_ON (backlight enable signal) and the VLED output pins.
LVDS Connector: Responsible for sending video data to the LCD panel. Technicians must verify the supply voltage (VCC-Panel), which is usually selectable between 5V and 12V via a jumper or zero-ohm resistor. The tested LCD TV motherboard TP.MT5510I.PB805 works well
I’d be happy to help you produce a detailed write-up regarding the "Tp.mt5510i.pb805 Diagram" .
However, it is important to clarify that "Tp.mt5510i.pb805" is not a standard commercial model number for a complete television or monitor. Instead, it appears to be a silkscreen marking on a printed circuit board (PCB) —specifically, the combined part number for a main board (logic board) used in certain LCD TVs, likely from a Chinese or OEM/generic brand (such as Haier, Changhong, Konka, or a non-branded set).
Based on industry patterns, here is a professional breakdown of what this diagram represents and how to interpret it.
The board features a single large transformer (T1 in the diagram). This provides isolation between the lethal primary side and the safe secondary side. The primary winding connects to the switching MOSFET. The secondary windings produce: