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Troubleshooting; Installation - Panasonic KX-TAW848 Installation Manual

Advanced hybrid & wireless pbx.
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4.1 Troubleshooting

4.1
Troubleshooting
4.1.1

Installation

PROBLEM
Extension does 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 cabinet turns on red.
112
Installation Manual
PROBABLE CAUSE
Bad extension card.
Bad connection between the
PBX and telephone.
A telephone with an A-A1 relay
is connected.
Bad telephone.
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
Exchange the card for a known working
one.
Take the telephone and plug it into the
same extension port using a short
telephone cord. If the telephone works,
then the connection between the PBX
and the telephone must be repaired.
Use a 2-wire cord.
Set the A-A1 relay switch of the
telephone to the "OUT" or "OFF"
position.
Take the telephone and plug it into
another extension port that is working.
If the telephone does not work, replace
the telephone.
Press the Reset Button (refer to "4.1.4
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.
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 KX-TAW848
Maintenance Console (refer to "4.1.5
Troubleshooting by Error Log").

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