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Caution
Cautions
• The apparatus is designed to be installed and operated under controlled
conditions of ambient temperature and a relative humidity not greater than 60%.
• Avoid installing the apparatus in damp or humid environments, such as
bathrooms or swimming pools.
• 999 or 112 can be dialled on the apparatus after accessing the CO line for the
purpose of making outgoing calls to the BT emergency service.
• During dialling, this apparatus may tinkle the bells of other telephones using the
same line. This is not a fault and we advise you not to call Fault Repair Service.
• If the apparatus does not operate properly, disconnect the unit from the extension
line cord and then connect again.
• Power failure transfer
Even if the KX-T7400 series are connected to telephone line, they will not
operate during a power failure.
Others:
• If there is any trouble, unplug the extension line and connect a known working phone.
If the known working phone operates properly, have the defective phone repaired by
one of the specified Panasonic Factory Service Centres. If the known working phone
does not operate properly, check the Digital Super Hybrid System and the Internal
extension wiring.
• Keep the unit away from heating appliances and electrical noise generating devices
such as fluorescent lamps and motors.
• The unit should be kept free of dust, moisture and vibration, and should not be exposed
to direct sunlight.
• Do not use benzine, thinner, or the like, or any abrasive powder to clean the cabinet.
Wipe it with a soft cloth.
• Do not use any handset other than a Panasonic handset for model KX-T7400 series use.
*PSQX1652YA 99.3.16 6:11 PM Page 32
