You can find the detailed PCB Layout on Scribd , which is essential for identifying specific component traces and soldering points.
is a commonly used 3-in-1 combo mainboard found in various LED TV brands, including RCA , Sceptre , Avera, iLive , and Bolva . It integrates the power supply, LED backlight driver, and signal processing (mainboard) onto a single PCB. Board Type : Combo (3-in-1) Main/Power/LED Driver Board. Input Voltage : Standard 100V–240V AC at 50/60Hz.
Shine a flashlight closely at the screen while turning the TV on. If you can see a faint image or menu text, the logic board works, but the backlight is off.
Open your downloaded verified working .bin file matching your specific panel number. Click and verify the buffer contents. tp.ms3458.pc757 service manual
(Excellent for schematic requests and component-level troubleshooting help)
MediaTek/MSTAR Processor (typically MS3458 family) Supported Screen Sizes: 32" to 43" LED Panels
A: Separate boards have separate manuals. The power supply board (usually marked 715Gxxxx) has its own document. You can find the detailed PCB Layout on
Armed with this guide and the official manual, you can confidently repair the tp.ms3458.pc757 chassis, saving a TV from e-waste and restoring its function for years to come.
The Service Menu allows you to change the TV's core configuration. Use it with care and before making any changes.
Look near the LED driver inverter connector. You will find a bank of low-resistance SMD resistors connected in parallel (e.g., 1R0, 2R2, 4R7) going to ground from the source pin of the LED driver MOSFET. Board Type : Combo (3-in-1) Main/Power/LED Driver Board
For those comfortable with a soldering iron and multimeter, here are step-by-step guides for the most common repairs.
Disclaimer: Electronic repairs should be performed by qualified personnel. Working with television power supplies involves risks of electric shock.
HD (1366x768) and Full HD (1920x1080)