Dell OptiPlex GX400 - Manual (Page 41)

¡ Ensure that the speaker cable is firmly connected to the computer.
¡ Test the electrical outlet. Verify that the speakers are connected to a working electrical outlet.
¡ Ensure that the speakers are turned on.
l If using a sound card, ensure that external audio devices are connected to the sound card's connectors and not to the microphone, line- out/speaker, or
line-in connectors on the system back panel (see
"Back- Panel Connectors and Indicators ").
l Ensure that audio is not muted in the operating system (OS) settings. See the OS documentation for more information.
l Adjust the volume control on the speakers, if it is provided.
l Adjust the volume control in the audio software. For more information, see the documentation for either your OS or your audio software.
l If you are trying to listen to an audio CD, try different CDs.
l Reinstall the audio driver for your operating system.
l Check for interference: electrical appliances on the same circuit or operating in close proximity to the computer can cause interference.
If the problem still exists after you complete the basic checks, fill out the Diagnostics Checklist as you perform the following steps:
1. Turn off nearby fans, lights, lamps, or other electrical devices.
Are the external speakers functioning properly?
Yes. One or more of those electrical devices was causing interference. The problem is resolved.
No. Go to step 2 .
2. Enter system setup and make sure that Sound under the Integrated Devices option is set to On. Then exit system setup properly to save the
information, and reboot the system.
Is the device working properly?
Yes. The problem is resolved.
No. Go to step 3 .
3. Run the Misc. PCI Devices tests in the Dell Diagnostics .
Did the tests complete successfully?
Yes. The controller is working properly. Go to the next question.
Do you have a set of headphones?
Yes. Go to step 4 .
No. Contact Dell for technical assistance.
4. Connect the headphones to the line-out/speaker jack.
Can you hear sound through the headphones?
Yes. The speakers are defective. The problem is resolved.
No. Contact Dell for technical assistance.
Printer Problems
Basic Checks:
l Disconnect the cable from the computer and check the cable connector for bent or broken pins. Check for damaged or frayed cables.
l If the cable is not damaged, ensure that it is firmly connected to the computer.
l Test the electrical outlet. Verify that the printer is connected to a working electrical outlet.
l Ensure that the printer is turned on.
l Check for interference: electrical appliances on the same circuit or operating in close proximity to the computer can cause interference.
If the problem still exists after you complete the basic checks, fill out the Diagnostics Checklist as you perform the following steps:
1. Perform the procedure in " Serial or Parallel Device Problems ."
Is the device working properly?
Yes. The problem is resolved.
No. Go to step 2 .
2. Run the printer's self-test.
Does the self-test complete successfully?
Yes. Go to step 3 .