Panasonic KX-TG7851TU Troubleshooting, General use, Programmable settings, Problem

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Useful Information

Troubleshooting

If you still have difficulties after following the instructions in this section, disconnect the base unit’s AC adaptor and turn off the handset, then reconnect the base unit’s AC adaptor and turn on the handset.

General use

Problem

The handset does not turn on even after installing charged batteries.

The unit does not work.

The handset display is blank or dark.

I cannot hear a dial tone.

Cause/solution

RPlace the handset on the base unit or charger to turn on the handset.

RMake sure the batteries are installed correctly (page 9).

RFully charge the batteries (page 10).

RCheck the connections (page 9).

RUnplug the base unit’s AC adaptor to reset the unit and turn off the handset. Reconnect the adaptor, turn on the handset and try again.

RThe handset has not been registered to the base unit. Register the handset (page 27).

RThe handset is in screen saver mode (page 13). Activate the handset display again by:

pressing MN when on a call.

pressing MeN at all other times.

RLCD in chargingis set to Offwhile on charge. Change the setting (page 22).

RThe handset is not turned on. Turn the power on (page 13).

RMake sure that you are using the supplied telephone line cord. Your old telephone line cord may have a different wiring configuration.

RThe base unit’s AC adaptor or telephone line cord is not connected. Check the connections.

RDisconnect the base unit from the telephone line and connect the line to a known working telephone. If the working telephone operates properly, contact our service personnel to have the unit repaired. If the working telephone does not operate properly, contact your service provider/telephone company.

Programmable settings

Problem

The display is in a language I cannot read.

I cannot activate the eco mode.

Cause/solution

RChange the display language (page 13).

RYou cannot set eco mode when you set the repeater mode On. If required, set the repeater mode to Off(page 28).

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Contents Digital Cordless Phone Thank you for purchasing a Panasonic productTable of Contents Accessory information Supplied accessoriesAdditional/replacement accessories Expanding your phone systemGeneral information Declaration of ConformityFor your safety Important safety instructions BatteryFor best performance Base unit location/avoiding noiseSpecifications Other informationRoutine care For business users in the European UnionRF transmission power Frequency rangeOperating conditions Setting up Battery installationConnections Base unitBattery charging During a power failureBattery level Icon Battery levelControls HandsetBase unit Display Handset display itemsHandset soft key icons Handset main menu iconsScreen saver mode Turning the power on/offInitial settings One touch eco mode Display modeProgramming the display mode beforehand Making calls Answering callsUseful features during a call Key lock Handset equalizerCall share MbN Equalizer a MoknShared phonebook MbN Phonebook a Mokn Speed dial Programmable settings Display the menu tree and direct command code tableRinger Setup Ringer Volume Night ModeStart/End Night Mode 30 sec Time Settings Set Date/Time*1Line Setup Dial Mode *1 PulseMsec # 160 msec Privacy Mode *1, *10 Repeater Mode *1Alarm Special programming#173 Off Main menu Operation Code Storing/Viewing bar call numbers #217Night mode Turning night mode on/offSetting the ring delay Changing the start and end timeSetting call restriction Changing the handset nameIncoming call barring Caller ID subscribers only Storing unwanted callersRegistering a unit Operating additional unitsRegistering a handset to the base unit Additional handsetsSetting the repeater mode Increasing the range of the base unitDect repeater Using Caller ID service Caller ID featuresCaller list Viewing the caller list and calling backErasing selected caller information Erasing all caller informationStoring caller information to the phonebook Voice mail service Intercom Handset locatorTransferring calls, conference calls Character entry Character entry modesExtended 1 character table Extended 2 character tableCyrillic character table Error messages Cause/solutionDisplay message Troubleshooting Programmable settingsProblem General useBattery recharge Making/answering calls, intercomCaller ID Liquid damageIndex TU-1/2 For your future referenceAttach your purchase receipt here