My brand new Acer Aspire 4738Z speakers making some short of noise when i touch the the mouse and/or i am unable to connect the mike & speaker (headphone) to talk through Skype. it makes noise and i am unable to hear the other person voice and also i hear my own voice. please help. Thanks. George

SOURCE: Scratchy Sound, Major Problem

Try the speakers on another PC with good working sound. This will indicate either a speaker problem or a sound card issue.

If speakers work ok on 2nd pc, then you have a sound card issue on your pc. If speakers are still scratchy on 2nd pc.. check the metal connector end, make sure it is clean and shiny. If there is any rust or other oxidation, clean it off with a very fine grade of sand paper

SOURCE: Pairing HT820 with Blackberry Pearl

trying to connect to blackberry pearl 8100 to motorola HT810

SOURCE: my computer speakers are making this weird noise

the First thing to test are the speakers form a different source. I believe that if you hook them up to another computer or an mp3 player you will find that the problem goes away and they work fine. (I know this by the info you gave me. THe fact that you get a large hum from the card when it is plugged in means that the output on the card has a short in it and is crossing the connections somewhere.

Solution is to have the card replaced or test it with another set of speakers just to be sure it isn't the cable.

SOURCE: i am unable to hear sound when i make call or receive call in normal mode.

Hi everyone, after spending sometime scouring the internet to no avail in order to fix this problem it suddenly occurred to me that the little holes in the earpiece may have become blocked from sitting around in my pocket. I have carefully cleaned all three of them with a pin and Hey Presto I can hear fine again without going on loudspeaker. Rgds Bill

SOURCE: jenson 4chnl amp pushing 4 6x9 jenson speakers,

Turn on thump can vary from a slight pop to a mind shattering, teeth rattling BOOM! This thump is caused by the audio circuitry stabilizing when power is applied. Most amplifiers and source units have muting circuitry that lasts a couple of seconds to allow these fluctuations to subside before passing a signal. However, if the amplifier un-mutes before the source unit or any other accessory, you better watch out. Here are some things to try if you have turn on thump.

1. Verify that the amp has a good audio ground reference. In order for the amps to function properly, the audio ground must be referenced to chassis ground at the source unit. If it is not, the amplifier could oscillate. To check for a good ground reference, take a volt-ohm meter (VOM) and measure the resistance between the chassis of the radio and the shield of the RCA line level outputs of the radio. This reading should indicate a direct short. If this is not the case, grounding the shield of the RCA line level outputs to the chassis of the radio will probably be necessary.
2. Don't install the system so the amplifiers can be switched on when the source unit is turned off.
3. If you still have thump, add a turn on delay module in line with the remote turn on wire to the amp.