Tp.ms3458.pc757 Service Manual |best|

The TP.MS3458.PC757 is a combined main board and power supply for 4K LED TVs, commonly used in models from RCA, Haier, and Bauhn. Technical resources include PCB layouts on Elektrotanya and Scribd, as well as the Haier 75UF5550 service manual which utilizes the same MSD3458 chassis. For detailed schematics and troubleshooting, refer to the PCB layout documentation on Elektrotanya TP.MS3458.PC757 for Bauhn 45"-65" UHD TV

• Download the correct usb_upgrade.bin file (panel-specific – do not mismatch).
• Copy to a FAT32-formatted USB 2.0 stick.
• Insert into TV USB port.
• Short pins 5 & 6 of the SPI flash (W25Q32) while powering on, then release after 2 seconds.
• The TV will show “Upgrading…” if successful.

No Power: The TV fails to turn on, often indicating a fault in the integrated power supply section of the board. tp.ms3458.pc757 service manual

• ElektroTanya – Search tp.ms3458.pc757. Often has schematics and service notes.
  👉 Use the search box on their site, not Google.
• Badcaps.net forums – Search the TV repair section. Users post voltage tables, common failures (e.g., bad regulators, no backlight), and firmware.
• Aliexpress / Shopjimmy – Even product listings sometimes include links to pinout diagrams or repair tips.
• YouTube – Search TP.MS3458.PC757 repair. Many videos show common faults (e.g., stuck on logo, no power, flashing firmware via USB).

. While a single "all-in-one" service manual for every TV using this board is rare, you can find the specific technical documents needed for repair below. Technical Documentation & Manuals PCB Layout & Schematics The TP

5. If you can’t find it

Search for MSD3458 reference design or TP.MS3458.PC75 (note PC75 vs PC757 – they are often similar). Also search your TV’s brand/model number – the same board is used across many sets. Download the correct usb_upgrade

rca tp.ms3458.pc757 pcb-layout - service manual - Elektrotanya