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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Posted to sci.electronics.repair
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Little bit OT in that it's not any item that's on my bench, or ever will be
.... Just returned from a trip across the pond, and the return aircraft was a B-767 - the crappy dash 200 model with overhead screens. The large screen which was on the bulkhead a few rows in front of me, and which I believe was an LCD not a plaz, had real horizontal linearity issues at the lefthand side. Nothing 'sharp' or 'digital' as you might expect with LCD display technology, but a smoothly worsening error, the further you got to the lefthand side. By about a quarter of the way across, the lin was normal, and remained so across the rest of the screen. The best way to describe it is that it looked exactly as a CRT set would, if someone had mis-set the H-linearity coil. Now I've been involved with LCD TV sets and monitors since they were first out, and I can't ever remember seeing one with this sort of effect. Saddo that I am, I have been wracking my brains to try to figure out just how this could even occur. Anyone else ever seen this effect on an LCD display, or have any thoughts on how it could occur ? Arfa |