I have a 2002 model 34HF81 34" Flat Screen CRT TV. A friend soldered a new IR sensor in the circuit board to replace a bad one. The good news is that the TV now works with a remote control to power on and off, adjust volume and change channels, all of which it could not do with a remote before. The sound is also good. However, in the process of us 1) taking off the back plastic case for the TV, 2) removing and putting back the anode cap and clip a few times (due to having to get back inside the TV to redo the positioning and screwing in of the circuit board that holds the IR sensor, and 3) accidentally bumping one or two circuit boards with my arm, the picture is completely lost. We made sure everything was reconnected and the anode clip and cap were securely seated before powering on the TV. The picture was fine before we worked on the TV. It seems unlikely to me that I destroyed the picture tube when I had to twist and pull with some force to get the anode clip out the first time. I'm thinking the loss of picture has to do with a connection or soldering connection having been disrupted. Any insight as to what to specifically look for or test would be very much appreciated.
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3/18/12 at 9:48am