Lenovo H4 Series User Guide V1.0
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... 23 If the problem persists, consult with Lenovo Service. 4.2 Troubleshooting Audio Problems Problem: No sound from headphones. Adjust the volume, bass, or treble controls to the computer's side-panel headphone connector. Sound from the computer. 3. Check for devices located...connected to eliminate distortion. • Reinstall the audio driver. • Disconnect headphones from the computer such as refrigerators, electric fans, electric dryers, UPSs, regulators, fluorescent lamps or other computers that the sound is securely inserted into the headphone connector. •...
... 23 If the problem persists, consult with Lenovo Service. 4.2 Troubleshooting Audio Problems Problem: No sound from headphones. Adjust the volume, bass, or treble controls to the computer's side-panel headphone connector. Sound from the computer. 3. Check for devices located...connected to eliminate distortion. • Reinstall the audio driver. • Disconnect headphones from the computer such as refrigerators, electric fans, electric dryers, UPSs, regulators, fluorescent lamps or other computers that the sound is securely inserted into the headphone connector. •...
