Check the pincushion correction wires (two) going from
the main board to the pincushion board on the right side
of the chassis. Solder the connections, & "slightly" pry
the pins to give a bit more tension, unless they are burn,
then cut the wires, & solder directly. Try this site. You
need a login, but you may be able to get in. Sky.

http://thomsonnetwork.com/documents/..._tech_info.htm