LG / Vizio 6871QYH057B YSUS Board

The Y-Sustain board is typically the culprit if your plasma TV fails to power on or displays no video despite the standby light being active. However, since other boards can cause similar symptoms, we recommend checking for visible damage on your current board or using a multimeter to test for proper voltage output before replacing.

While the part number is the primary identifier, you should also verify the 'Visible Number' printed on your board, which is 6870QYB007B. Ensuring both numbers match your original board is the safest way to guarantee full compatibility with your specific television model.

If you are comfortable working with electronics and handling delicate ribbon cables, this is a manageable DIY repair. Just be sure to unplug the TV and allow the capacitors to discharge fully before opening the casing, as plasma TVs can hold a dangerous electrical charge.

Yes, this component includes a 180-day warranty. This provides peace of mind that the board is tested and functional upon arrival, covering you in the unlikely event of a manufacturing defect.

Plasma boards are sensitive to static electricity and physical pressure. Handle the board by its edges, avoid touching the components or pins directly, and ensure all ribbon cables are seated firmly and aligned correctly to prevent short circuits or poor signal transmission.