This is a very common "three-in-one" (Power + LED Driver + Main) Chinese chassis manufactured by CVTE. It’s widely used in budget-friendly LED TVs across several brands, including:
Chassis TP.MS3663T.PB751
DEXP, Telefunken, Supra, Harper, Hyundai, and Yasin. Download MS3663T PB751 1366x768 IRIS Backup rar
Before flashing, always , even if it’s corrupted. Also, double-check your panel number (e.g., V320BJ6-Q01). If the firmware resolution doesn't match your panel, you might end up with a "solarized" image or no display at all. This is a very common "three-in-one" (Power +