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.
Before analyzing the diagram, we must understand the hardware. The is an integrated power supply board. Unlike older TVs that had separate power supply and LED driver boards, this model combines both. Tp.mt5510i.pb805 Diagram
LED protection circuit tripping, resulting in "Sound but No Picture." 💾 Firmware & Recovery While a complete schematic for the PB805 variant
Despite the backlight failure, the WiFi module and Android 7.0 system were trying to boot, evidenced by the steady 520mA current draw marked on the technical sheet. The Solution Tp.mt5510i.pb805 Diagram