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No sound power surge on phone line fried internal modem which I have replaced with an USB modem; however, I also lost all sound

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  • dave_matthes Nov 15, 2008

    The computer is a Compaq Presario 2500 series laptop. I never saw any sound card in the specs and assumed sound was linked to modem* which was an integrated v. 90; so, to answer your queston, it was built in
    *This seemed to be borne out as the sound and the modem "disappeared at the same time


  • dave_matthes Nov 15, 2008

    Thanks for the manual link. The section showing replacement of the speakers indicates that it is not a user replaceable part for the Presario 2500. (I assume that your referring to the speakers shorting out that they are blown/ruined and need replacement). I found the replacement part (# 319479-001) on ebay for $1.00+shipping. The HP chat person also said that is was not a user replaceable part. It looks as though I could take the keyboard cover off, then the speaker strip, disconnect the wires and put it all back together with a screwdriver. Am I missing something?....like maybe I have to take the speaker replacement part off from the bottom of the machine and thus have to tear it all apart. (Which may be the case, because I don't see any screws on top of the speaker strip holding it down from that side; possibly, since speaker strip appears to include the front of the keyboard cover hinges, the strip just pops our??
    Thanks again, you've been very helpful so far. BTW, HP wanted $298 to fix it!


  • dave_matthes Nov 15, 2008

    Checking for corrupted drivers was the 1st thing I did; they weren't, but I downloaded and installed updated drivers anyway, to no avail. The original default audio was "modem #4 line playback" which may indicate that the modem would have to be replaced to get audio back. Since the modem is on the motherboard, I think I'll stop my tinkering here so I don't wind up with a 5# anchor. You've been a tremendous help Slick54 in getting me to this point though and I appreciate your time.

    I've hooked up a USB sound card (M-Audio Transit) which is working well (with external speakers) but is just more "stuff" hanging off the laptop and not much good for on the road use.


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Hi Dave,

I read the manual on the speaker replacement and I thought it was a user replaceable part. It even said that all you had to do was remove the parts you mentioned and then unplug the wire connector. I just looked at it again, Figure 2-8 shows that it is a user replaceable part so you should be ok to do it. I thought I also saw a spot that shows modem replacement so you may be ablle to replace that too. However, before you do all this, did you make sure that the audio configuration is still set. Go into device manager and make sure the driver for the audio does not have an exclamation point, maybe the driver is corrupted and needs to be reinstalled. Also, go into control panel, sounds and make sure the default audio onboard audio card is selected too. Let me know how it works out.

Hi Dave, Here is a link to the service manual. When you lost the modem you have have had the speaker systerm short out too. Good news is you can replace them if this is the case. In any case the service manual has diagrams so you can see exactly how it's put toghether. Compaq also allows the user to do certain part replacements without an authorized tech, this will tell you what you can do. http://www.elhvb.com/mobokive/edwin/laptops/Compaq/Compaq%20Pavilion/HP%20Pavilion%20ze5200%20Notebook%20PC.pdf Hope this helps.

Need to know if it has a built in sound card or a pci sound card. Also, brand of sound card too.

Posted on Nov 15, 2008

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