Samsung DCS-408i - Troubleshooting Common Problems; Problem Identification and Solutions

Samsung
DCS-408 & 408i Keyphone System Installation Manual
– 32 –
Problems may arise while you are using the DCS-408/DCS-408i digital keyphone system. In
rare cases this may be the result of a serious fault in the system. More commonly, problems
can be resolved quickly and easily by following the troubleshooting tips described in this ap-
pendix.
If the problem persists after you have taken the steps described here, contact your dealer for
advice and refer servicing to qualified service personnel.
NOTE: If you are not familiar with using the system, Samsung recommends that you contact your
dealer and refer servicing to qualified service personnel even if the problem and suggested actions
are listed here.
Common Problems
Condition Suspected cause Actions
1
DCS-408/DCS-408i
digital keyphone system
is not powered ON.
- Fault in power cable connec-
tion
- Fault in the power supply unit
- Check power cable connection.
- Check the fuses
(check the AC input and the
DC output)
- Check whether the red LED under the front
cover is flashing.
2
Nothing is displayed on
LCD of keyset.
- Fault in DCS-408/408i digital
keyphone system connection
- Check if the modular jack has been re-
moved.
- Check if the connecting cables are short-
circuiting.
3
Keyset does not oper-
ate.
- Fault in the keyset
- Fault in data communication
- Replace the keyset with another one and
check whether the new one operates.
- Check the ports to determine whether volt-
age output is normal.
4
Keyset volume control
does not operate.
- Fault in keyset
- Replace the keyset with another one and
check whether the new one operates.
5
Keyset ringer does not
operate.
- Fault in keyset
- Fault in the SLI ports when
using an analogue telephone
- Replace the keyset with another one and
check whether the new one operates.
- Check ring output if the problem occurs with
another analogue telephone.
6 Tone is not heard.
- Fault in the keyset
- Fault in line connection
- Replace the keyset with another one and
check whether the new one operates cor-
rectly.