After about 1 hr of viewing and reading posts with considerable interest,(on AVS forum with regard the Westinghouse SK-32H240S which are experiencing the same problem.) I am seriously considering to try this fix but I am very hesitant to remove the back panel not know if the Two TV's schematics are the same. Can you please tell me if this will fix my TV and if so, are these panels in the same place on MY tv? THE SUGGESTED FIX IS AS FOLLOWS: I simply unplugged all the cables, layed the unit face down on the kitchen table, got a baseball bat...(just kidding) removed the back cover using a standard phillips screwdriver and set it aside. At the top of the unit is a silver colored sheild held in place by 6 phillips screws. Use same screwdriver to remove this cover. Underneath it, you will find a circuit board. Along the top edge of this board, there is a ribbon cable connector (very flimsy). Plugged into this connector is a rather fine ribbon cable whith is held in place with some tape! Carefully remove the tape, taking care not to scratch the circuit board and then gently wriggle the ribbon side to side while pulling it out of the connector. It should slip out easily. Plug and unplug this connector a few times (to clean oxidation off contact points) and then use an eraser to genty swab the contact points on the ribbon. Wipe contacts off with with a clean, lint free towel and re-insert into connector and re-tape in place. The other end of this connector will need the same treatment. Replace the silver colored sheild. To access the other end of the ribbon cable, you will need to seperate the input/power cable chasis from the main portion of the set (very simple). Remove the 4 screws holding this module in place starting with the two at the top (you may have to peel back some silver tape to reveal heads then remove the lower two screws. There are two strips of silver foil tape running down either side of the module. Carefully seperate one edge of each of the foil tapes. The module should now be free. Slide the module towards the bottom of the set (about 4 inches) to expose the other end of the ribbon cable. Repeat the cleaning process. Reassemble TV and you're back in business.
Think of this: without this "experiment" the TV is (almost) worthless. so what can you lose? bringing it to a repair store will cost something. they need at least 1 hour to do this.
When you think you can manage this, why not try it?
Be care full not to damage the front of the screen. You have to put it face down, but please don't let it rest on the screen, only on the frame. The table must be flat, not anything should lay there, because even a screwdriver lying there, will damage the screen forever.
Then when it is just oxidation in the connectors, make sure the connectors are the same as described on the side. Don't use to much force to remove the flat cables. When it does not go smooth, check if they are blocked with a lever. there are many ways how flat cables are locked in place, but with a flat tool most of the time you can unlock it and after reinserting you can put the lock back.
Never use sharp tools to clean the cables or contacts. Just a dry cloth or cotton swabs. I sometimes use special contact spray for electronic contacts, but I always make sure the cable and contacts are complete dry before I put them back. The fluid will start the oxidation process sooner. I hope you have success.
I even wish you success.
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