M17GKA starlogic monitor

[Mikef101]

Need parts list and schematic for M17GKA starlogic monitor
I have a blown part on the main board next to the power supply
plug it looks like a diode, I can only see parts of the numbers on it,
first row number is R could be P or B next is 6K last numbers 8A
the second row the number ends with 43 that all I got
it those have a ring on it for positioning when assembling.
Dimension lenght aprox. 6.5mm od. 3.4mm.
Can someone help