10 years and first problem to repair. When you turn on and select DVD or any other selection a very loud cracking noise comes through right speaker only. So loud (with volume tuned off too) that I fear speaker will blow! Any ideas?

Replace the speakers or let it be repaired by some one.their may be rust near the speaker coils.just giv it a try.

Click start right click on computer select properties then device manager scroll to sound and video game controllers if you see a yellow question/exclamation mark or a red X the driver will need to update drivers Click start right click on computer select properties then device manager scroll to sound and video if you right click on sound and video then on high definition audio device select update driver software Click start control panel hardware and sound manage audio devices right click on your speaker select configure speakers. Right click on the speaker icon in the bottom taskbar you will see an array of options select playback devices make sure it has a green tick and the correct speakers are selected be updated. If you computer came with a motherboard disk the drivers could be on it although once speakers are connected widows 7 should automatically update the drivers Click start control panel hardware and sound manage audio devices playback you might have to set a default go for via high definition audio then right click on speaker You might have to configure them then select properties you will see tabs general level in this tab make sure your settings are loud enough also enhancements and advanced from the drop down list in the advanced tab select dvd quality or another then apply

click start right click on computer select properties then device manager scroll to sound and video game controllers if you see a yellow question/exclamation mark or a red X the driver will need to

click start control panel hardware and sound manage audio devices right click on your speaker select configure speakers

right click on the speaker icon in the bottom taskbar you will see an array of options select playback devices make sure it has a green tick and the correct speakers are selected

be updated if you computer came with a motherboard disk the drivers could be on it although once speakers are connected widows 7 should automatically update the drivers

click start control panel hardware and sound manage audio devices playback you might have to set a default go for via high definition audio then right click on speaker

you might have to configure them then select properties you will see tabs general level in this tab make sure your settings are loud enough also enhancements and advanced from the drop down
list in the advanced tab select dvd quality or another then apply

hope it helps

try replacing the input cord between the speakers and the computer. the scratching noise normaly comes from a faulty connector. if that doesnt work you may have dirt or dust in contact with the speakers cones or there is an amplifier issue

control panel sounds and audio,volume,advanced,speakers select appropriate speakers or audio you will find 3 drop down lists make sure you have selected the right speakers or control panel,administrive tools,computer management,device manager,sound,could be a yellow question mark? right click to re-install drivers if you have tried this you might try

control panel,administrive tools,computer management,device manager,sound,right click select properties to either troubleshoot,uninstall,rollback driver

hope this helps

i have exact same problem i think its got something to do with volume controller on front right speaker damn shame as the sound was awesome

Select Start > (right click) My Computer > Manage
In the Management window select > Device Manager
Next to Sound, Video and Game Controllers click the + sign
A yellow triangle will signify a problem so if one is present, right-click that device and select Properties
You can then choose to update the driver
For more details check Dell Xps 420 Manual.
Dell Xps 420 Manual

I had the same problem on my ACER 5810 - Here is how I fixed it...

Right click the speaker icon in the bottom right -> Select Playback Devices (in Win7)

Highlight the speakers and press Properties

Choose the Levels tab - and max out this slider

Then choose the Enhancements tab and select AND apply the Loudness Eq setting...

This is now as loud as you will get (should see about 20% increase overall)

Word!

If I remember correctly there was a problem with the DSP board that required a chip replacement to resolve this problem. I replaced many of these in the past. The IC involved is a surface mounted IC that is not the easiest to replace. This is not a home repair. I'll double check my notes on this, but once replaced, you should not have the problem again. The problem was an incompatability of the initial manufacturer's IC with the design (or something like that). The IC runs about $25-$40. I'll post additional details when I get the notes.

Dan

The on-screen menu appears only when the selected source is DVD or VCD on the DVD/VCD/CD player and the disc is in the slot and NOT PLAYING. On the remote control ONLY: 1. Press CHOICE (it should work now) LANGUAGE menu appears. 2 Press Cursor to move to the menu you want? which is AUDIO Selected item changes its color to green. THEN: 1. Display EXPERT SPEAKER SETTING menu. 2. Press Cursor to select ?TEST TONE,? then press ENTER. ?TEST TONE? changes its color to green and test tone comes out of in the following sequence?left front speaker, center speaker, right front speaker, right rear speaker, and left rear speaker. ? Test tone is output only when the tray loaded with a DVD is selected, but not playing. 3. Press Cursor to move to ?C.SPK? LEVEL? or ?R.SPK?LEVEL,? then press ENTER. 4. Press Cursor to adjust the output level, then press ENTER. ? You can adjust the output level from ??6 dB? to ?+6 dB.? 5. Repeat steps 3 and 4 to adjust the other speaker output level. 6. Press Cursor to select ?TEST TONE,? then press ENTER. Test tone stops. 7. When finished, press Cursor to move to ?EXIT,? then press ENTER. EXPERT SPEAKER SETTING menu disappears. I hope this helps you, please let us know. Best regards, nightdiver