Troubleshooting; Installation - Panasonic KX-TAW848 Installation Manual

4.1 Troubleshooting

4.1 Troubleshooting
4.1.1

Installation

PROBLEM
Extension does not operate.
Improper operation.
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.
116 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").
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").