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CF 18 Electric Hum?

Discussion in 'Panasonic' started by Almstprfct1, Jan 16, 2011.

Almstprfct1 Notebook Consultant

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Hey Guys...and Girls. I've got a head scratcher here.
I bought an 18D and it looks to be brand new...the only problem is when I power it up there is a fairly loud electronic hum. Kinda like the sound of a florescent light.
I figure thats why it still looks like new (hell I'm scared to use it). I haven't been motivated enough to take it apart to see where the sound is coming from exactly but it does it with or without a caddy and drive and plugged in or not
It seems to come from around the middle of the machine. Any help would be appreciated .

Almstprfct1, Jan 16, 2011

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denrosten Notebook Evangelist

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Probably the backlight converter
Try to control brightness and see if it decrease or increase

denrosten, Jan 16, 2011

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mnementh Crusty Ol' TinkerDwagon

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Does it happen only on AC power, or does it do it on battery too?
If it goes away when you unplug the AC adapter, I think you've found your culprit.

mnem
HUMMMmmmmmmm...

mnementh, Jan 16, 2011

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furtherontheroad Notebook Guru

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Pinched and hurt loudspeaker cable ?

furtherontheroad, Jan 17, 2011

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