There's a loose wire some where on the left lower section as you face the rear of the tv. It is a ribbon with at least 9 connectors. It connects to #1043 on the circuit board. At the connection it will read 2 1043 10. Trace from there to the upright board encased in aluminum and if there is nothing loose look at the back of the upright board. If there is a loose one just gently press it back in as they are pressure connectors.
Pablo, October 2007