Get a working buffer board 6871QDH089A then send back your old core to get credit.
A replacement for a broken plasma display connector used in the 6871QDH088A / 6871QDH089A LG buffer boards
This kit resolves a common failure in LG driver boards 6871QDH088A and 6871QDH089A resulting in vertical line or lines on the display
SN755866 shift register IC for plasma sustain output buffers 6871QDH088A, 6871QDH089A, 6870QDC005A and others
FSU05A40 is a fast power diode used in a number of plasma sustain boards by Samsung and possibly other manufacturers.