LG 50PC1DR - - 50" Plasma TV Troubleshooting Manual page 49

The Control Board supplies the Video Signal to the TCP
ICs. If there is a bar defect on the screen, it could be a
Control Board problem.
Control Board to X Board
Address Signal Flow
This will show Signal Flow Distribution to help determine the failed
part depending on where the failure is on the screen.
Plasma Display Panel Troubleshooting - 2007
Diagram of Control Board
MCM
Buffer
IC
Array
16 line
16 output
TCP
49
Troubleshooting
16 line
TCP
TCP