Panasonic KX-TDE100 installation manual Problem Probable Cause Solution

			5.1 Troubleshooting
PROBLEM		PROBABLE CAUSE	SOLUTION
	•	Network malfunction	• Make sure that all network devices in
			use are switched on.
			• Make sure that the IP-PT/SIP
			Extension is not blocked by the firewall
			or other network devices.
Extensions (except IP-PT/SIP	•	Extension card malfunction	• Replace the corresponding card.
Extension) do not operate.
	•	Poor connection between	• Take the extension and plug it into the
		the PBX and the extension	same extension port using a short
			telephone cord. If the extension works,
			then the connection between the PBX
			and the extension must be repaired.
	• A telephone with an A-A1		• Make sure that a 2-wire cord is used.
		relay is connected.	• Make sure that the A-A1 relay switch of
			the telephone is in "OUT" or "OFF"
			position.
	•	Extension malfunction	• Take the extension and plug it into
			another extension port that is working.
			If the extension does not work, replace
			the extension.
	• Wrong type of PSU		• Replace the PSU with the appropriate
			type.
The PBX does not operate			• Press the Reset Button (refer to "5.1.4
properly.			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.
Noise on external paging.	•	Induced noise on the wire	• Use a shielded cable as the connection
		between the PBX and the	wire between the PBX and amplifier. A
		amplifier.	short shielded cable is recommended.
Distorted external music.	•	Excessive input level from	• Decrease the output level of the
		external music source.	external music source by using the
			volume control on the music source.
Alternate Calling—Ring/Voice	•	Voice-calling mode and	• Switch the calling mode to ring-calling.
and Live Call Screening (LCS)		Hands-free mode with LCS	• Set the LCS mode to "Private".
do not function as set when using		are not available with
a Wireless Phone (KX-T7880/		Wireless Phones.
KX-T7885/KX-TD7894/KX-
TD7895).
The ALARM indicator on the	•	A major system error	• See the error log using the KX-TDE
front of the shelf turns on red.		occurs in the PBX.	Maintenance Console (refer to "5.1.5
			Troubleshooting by Error Log").

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