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Interference between laptop components?

Posted on 2002-05-20
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Last Modified: 2008-02-01
A friend of mine got this IPC topnote f series model 200.  It was working fine until a few weeks ago, she noticed that her cd-rom doesn't read any cd's and there's no sound coming out from speakers.  She also heard a scratchy kind of noise when the system is booting, using modem.  Basically anything she does she hears that sound.  It's like something is interfering the sound card.  Windows xp pro detects sound card and cd-rom find but they're not working at all.  Upon inserting the cd into the drive, it spins for a few secs and stops and when you go to cd-rom drive, it'll say there's no cd in it.  The sound is detected fine as well but there's no sound coming out of speakers nor earphones port.  She hasn't droped or physically damaged the laptop.  Sound card is sis 7018, and the chipset is sis 630 I think.  We have downloaded and tried the latest drivers and it didn't help.  We also tried using the cd-rom in real-dos mode, the driver loaded fine but the cd-rom wouldn't read cd's.  

I'll tell her to go back to the shop where she got it from if there's no solution for it.
Thanks
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Question by:cooljam23
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Expert Comment

by:magarity
ID: 7023164
Sounds like a replacement under the warranty issue.

Since laptops are so highly integrated, there is no swapping parts to try to find what is wrong or replacing a faulty component.  As long as the software is correctly configured, this sounds like a failure.

Be aware that the shop will almost certainly erase all information on the hard disk.  Back up everything you need to keep to another computer before taking it in or it will be lost forever.  The first thing the shop will try will be to restore the system to the basic WIndows installation from the factory to see if the problem was caused by some program you added.
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by:cooljam23
ID: 7023195
It sholdn't be the software because there's none on the OS.  Yeah that's what I thought too a hardware failure, but how come the cd-rom drive spins the cd's and is getting detected in windows? anyway I'll wait for a few more comments. thanks.
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Expert Comment

by:rid
ID: 7023319
Detecting the CD unit has nothing to do with being able to read CD:s... There may be a problem with the laser or something. The same goes for sound circuitry etc: The parts that interact with the computer may be OK, but there may be a problem with the sound circuits proper. The software would probably not ever find such errors. To me this definitely sounds like something has broken, and I think you've already got good advice from magarity. Back up your data and try to get a replacement/repair job.

Regards
/RID
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Author Comment

by:cooljam23
ID: 7023948
Ok I just got a surprise from this laptop.  It was giving out sounds today untill I tried to read some cd's.  There was no sounds again.  Any comments to this? Because i've never came across this problem before.
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by:cooljam23
ID: 8458052
No further comments, will delete this.

thanks all
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by:modulo
ID: 8463015
Dear expert(s),

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Saving this Q as a PAQ and refunding the 75 points to the questionner

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