HP LaserJet Enterprise M607n - No control panel sound

No control panel sound
NOTE: To open the diagnostic function, press the button on the back of the control panel.
Figure 2-44 No control panel sound
N
N
Y
Y
Control panel
has no
sound
Turn the product power off.
Remove the control panel.
Check the cables to the speaker.
Reseat the cables to the speaker.
Turn the product power on.
Can sounds be heard?
Can sounds
be heard?
Can sounds
be heard?
Replace the control panel.
Open the following menus:
Administration
Display Settings
Key Press Sound
Select the following:
On
Save
N
Do not replace the
control panel.
Open the
diagnostic function.
Perform the sound test.
ENWW Troubleshooting process 137