This set is about 6 years old, it came in with a pure white raster caused by a blown video IC and lack of cathode supply. With those problems fixed, the set works but has another, unusual problem; it only responds to remote commands every few seconds. For example, push volume and the volume might go up one notch; keep holding it and it will not adjust any further. To turn the volume way up, you have to keep pressing Vol. repeatedly on the remote, and not too quickly either. I tried two other remotes (one original, one universal) and got the exact same result. I tried replacing the IR sensor module with one from another Samsung chassis, with no change. Any ideas?
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