Question about Akai LCT3201TD 32 in. LCD Television
A Hum in Audio in all modes of operating. The hum was a 60 cycles in nature. Since the power supply is a switching supply and it does not operate at line frequency I felt that the hum must be introduced from the line voltage input. However I was going to check the power supply input. Before removed the power supply I noticed that the FOUR mounting screws that held the power supply to the main chassis were not tight. Tightening the mounting screws solved the HUM problem .If the power supply is not grounded fully a ground loop hum will appear. I felt this may become a problem as the sets age. From a retired electronic tech RAY AI4DU
This TV is well known for humming if you change vidio settings to any that require more power than default. Keep the vidio settings in the default positions.
Posted on Mar 09, 2008
Again, thanks for sharing and posting at FIXYA.
Posted on Feb 12, 2008
Good catch Ray. Thank you for the info.
Posted on Jan 31, 2008
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Posted on Jan 02, 2017
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