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 Post subject: Boooo, hisssss
PostPosted: Mon Oct 26, 2015 2:08 pm 
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Do any of your CF-30's emit a soft hiss or white noise from the speaker as soon as you turn the unit on? (before the OS loads, even)

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 Post subject: Re: Boooo, hisssss
PostPosted: Mon Oct 26, 2015 2:15 pm 
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Sounds like the inverter for the lcd is failing...
I should have several here..
what mk?

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 Post subject: Re: Boooo, hisssss
PostPosted: Mon Oct 26, 2015 2:18 pm 
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LCD inverter for sure! I've seen it! :) No big deal!

But we do need your full model number!!! :)

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 Post subject: Re: Boooo, hisssss
PostPosted: Mon Oct 26, 2015 3:51 pm 
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It's a mark 3 KQPRQAM.
The noise is barely noticeable, though.

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 Post subject: Re: Boooo, hisssss
PostPosted: Mon Oct 26, 2015 4:45 pm 
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Does it stop making noise when you close the lid?

Thanks!

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~Rob - Rugged Depot ~ Cell: (630)/300-8877~

~Fully rugged Toughbook user since April 18th 2005~
~New 3/16/18 - CF-54F0001KM Win10, Intel Core i5 6300U 2.4GHz, 240GB SSD, 12GB, Verizon 4G LTE, Intel 8260 WiFi a/b/g/n/ac, Bluetooth~
~For the wife (New 1/25/18): CF-54F0962KM/i5/128GB SSD/8GB/Win 10~
~Others: CF-52MLBBQ2M (Home Workstation)
~New 11/13/14 Donations thanks to everyone at Toughbooktalk: IBM xSeries 3650/2 x Xeon X5560 2.8GHz/16GB RAM/8 x 600GB 10KRPM SAS RAID 5/3.71TB Space/Win 2008 R2/3000VA + 1250VA Battery Backup~
~AT&T 1GB Fiber 1GB/1GB business static line~
~Gamber & Johnson Diamond Partner~

http://www.toughbooktalk.com
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http://www.giganethosting.com


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 Post subject: Re: Boooo, hisssss
PostPosted: Tue Oct 27, 2015 7:19 am 
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I see where you're going with this. No, when my LCD powers down or when I close the lid, the noise continues.

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 Post subject: Re: Boooo, hisssss
PostPosted: Tue Oct 27, 2015 7:32 am 
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My Toughbooks don't boo or hiss..They do whisper in my ear that they are lonely. They keep insisting that I get them more friends.

AC or battery power or both?
Try removing the battery
Try unplugging the speaker.

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 Post subject: Re: Boooo, hisssss
PostPosted: Tue Oct 27, 2015 9:14 am 
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Hehe, maybe the solution is to get more toughbooks then.

Regardless of power or presence of batteries, it hisses. It's too minor of a problem for me to go through the trouble of disconnecting the speaker, though. You really have to put your ear to it, or only hear it when it's dead silent in the room. So far it doesn't bother me but I do wonder about the power drain.

About the lid closing, it's fair to note that I configured it to not sleep but just blank the screen.

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CF-19 MK2 TOUCHSCREEN || CF-19 MK2 DIGITIZER || CF-30 MK3 "Jeff Edition" || CF-19 MK4


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 Post subject: Re: Boooo, hisssss
PostPosted: Tue Oct 27, 2015 9:36 am 
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Try plugging in a earphone...
SSD ? HDD spin?

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 Post subject: Re: Boooo, hisssss
PostPosted: Sat Dec 12, 2015 11:46 am 
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Hey guys, been away for a while. Following up on this issue, plugging in headphones does not stop the sound coming from the speaker. Anyway, it's a minor issue.

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CF-19 MK2 TOUCHSCREEN || CF-19 MK2 DIGITIZER || CF-30 MK3 "Jeff Edition" || CF-19 MK4


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