Thunderbolt (Tb) - HP ZBook Power G10 Maintenance And Service Manual

Table 6-44 Issues, possible causes, and fixes (continued)
Items
No sound from headphones
No sound from external speakers

Thunderbolt (TB)

Use this information to troubleshoot Thunderbolt issues.
118 Chapter 6 Troubleshooting guide
Procedures
Troubleshooting steps
1. Remove any device connected to the audio jack to enable the internal speaker.
2. Close all open programs.
3. Adjust volume by pressing
amber (mute).
- or -
Adjust Windows volume control by selecting the speaker icon on the Windows
taskbar. Be sure that the sound is not muted.
4. Verify that the sound card is detected in Windows Device Manager.
5. Reinstall the latest audio driver.
6. Test audio device using the HP PC Hardware Diagnostics (UEFI) tool
Component Tests > Audio).
7. Test with a verified working operating system. If issue is resolved, restore full
operating system.
8. Test with verified working external speakers or headset.
9. Reseat internal speaker connections.
10. Test with verified working internal speakers.
11. Replace internal speakers.
1. Adjust volume by pressing
amber (mute). Or adjust Windows volume control by selecting the speaker icon on
the Windows taskbar. Be sure that the sound it not muted.
2. Check headphone cable connection.
3. Test with a verified working audio board.
4. Replace audio board and verify the change.
1. Verify that external speakers are turned on.
2. Disconnect headphones from headphone jack.
3. Adjust volume by pressing
amber (mute).
- or -
Adjust Windows volume control by selecting the speaker icon on the Windows
taskbar. Be sure that the sound is not muted.
4. Check for possible interference devices nearby that might affect the audio (cell
phone or portable communications handset).
fn + f6 or f7. Be sure that volume button light is not
fn + f6 or f7. Be sure that volume button light is not
fn + f6 or f7. Be sure that volume button light is not
(f2 >