Hi shahidali55,
If your display is large and has long wires , it may well be acting as an antenna, try decoupling caps on each output line going to it, as well as any inputs, also try hooking all ground connections to a single ground connection, as ground loops often cause electronic circuits to oscillate, That is what they used to do in high end audio gear.
HTH
JS
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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