Panasonic KX-TDE100 Installation Manual page 153

PROBLEM
Extensions (except IP-PT/
SIP Extension) do not
operate.
The PBX does not operate
properly.
Noise on external paging.
Distorted external music.
Alternate Calling—Ring/
Voice and Live Call
Screening (LCS) do not
function as set when using a
Wireless Phone (KX-T7880/
KX-T7885/KX-TD7894/
KX-TD7895).
The ALARM indicator on the
front of the shelf turns on
red.
Document Version 2010-08
PROBABLE CAUSE
•
Extension card
malfunction
•
Poor connection
between the PBX and
the extension
•
A telephone with an
A-A1 relay is
connected.
•
Extension malfunction
•
Wrong type of PSU
•
IPCMEC card
malfunction
•
Induced noise on the
wire between the PBX
and the amplifier.
•
Excessive input level
from external music
source.
•
Voice-calling mode and
Hands-free mode with
LCS are not available
with Wireless Phones.
•
A major system error
occurs in the PBX.
SOLUTION
•
Replace the corresponding card.
•
Take the extension and plug it into the
same extension port using a short
telephone cord. If the extension works,
then the connection between the PBX and
the extension must be repaired.
•
Make sure that a 2-wire cord is used.
•
Make sure that the A-A1 relay switch of
the telephone is in "OUT" or "OFF"
position.
•
Take the extension and plug it into
another extension port that is working. If
the extension does not work, replace the
extension.
•
Replace the PSU with the appropriate
type.
•
Press the Reset Button (refer to
"5.1.4 Using the Reset Button").
•
Turn off the power switch, and then turn it
back on.
•
Turn off the power switch, and then
unplug the PBX. After 5 minutes, plug the
PBX back in, and turn the power switch
back on.
•
See the error log using the Maintenance
Console (refer to "5.1.5 Troubleshooting
by Error Log"). If the error no. 41 is
displayed, replace the IPCMEC card.
•
Use a shielded cable as the connection
wire between the PBX and amplifier. A
short shielded cable is recommended.
•
Decrease the output level of the external
music source by using the volume control
on the music source.
•
Switch the calling mode to ring-calling.
•
Set the LCS mode to "Private".
•
See the error log using the Maintenance
Console (refer to "5.1.5 Troubleshooting
by Error Log").
5.1.1 Installation
Installation Manual 153