(or similar variants like PB818), often referred to as a "three-in-one" board. : 1366x768 pixels (Standard HD).
Because "dumps" are often extracted from working TVs by technicians using specialized tools (like the RT809F programmer ), they are rarely hosted on official manufacturer sites. You can find them on technician forums and community databases such as: HOW TO MAKE LCD LED TV SOFTWARE BACKUP Download MS3663S PB781 1366x768 SHARP DUMP rar
The search term refers to a request for a firmware backup file (a "dump") for a specific LED TV motherboard model used in SHARP televisions. (or similar variants like PB818), often referred to
: .rar (a compressed archive containing the .bin or .img firmware file). Where to Find the File (or similar variants like PB818)