Chapter 6: Troubleshooting
6-5
6.3
The keypad tone does not sound, or the sound is too loud or too quiet
Probable Cause
Solution
The set volume for the keypad tone is
inappropriate.
・
Set the volume again.
・
If the volume is still inappropriate after
resetting, adjust the volume: select
[Function Menu] – [Parameters] –
[Buzzer].
The device is malfunctioning if the volume still cannot be adjusted after trying the
above solutions.
Return the device to your local service center.
6.4
The system does not respond to key entries
Probable Cause
Solution
Program runaways
Keys are malfunctioning
(1) Reset the device.
(2) Assess if the device is malfunctioning.
See “6.10: Program runaway”.
(3) Download the application program.
Sheet key unit service life
If the above procedures do not solve the
problem, the malfunction may be due to the
sheet key service life. Purchase and replace
with a new sheet key unit.
The device is malfunctioning if the system still does not respond after trying the above
solutions.
Return the device to your local service center.
Summary of Contents for SA-4320
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