PROBLEM eExtension does not operate.When using thespeakerphone mode,nothing is heard.The unit does not ring.During a powerinterruption,extensions connected tojack number 1,2,9, 10, 17and 18 do not operate.PROBABLE CAUSEThe Power failure switch ofthe KX-Tl23230,KX-T61631, KX-T61630 orKX-T30830 is set to ON.The HANDSET/HEADSETselector of the KX-Tl23230,KX-T61631, KX-T61630 orKX-T30830 is set to the“HEADSET” position.l Ringer Volume Selector isset to “OFF”.l The CO numbers are notprogrammed.oThe Power failure switchof the KX-Tl23230,KX-T61631, KX-T61630 orKX-T30830 is set to OFF.l The dialing mode (tone orpulse) is improper..KX-Tl23220,KX-Tl23250,KX-T61620, KX-T616.50,KX-T30820 or KX-T30850is connected.If the system is not operating properly, use the ResetButton.l Before using the Reset Button, try the systemfeature again which does not work several timesto confirm there definitely is a problem.l Pressing the Reset button will cause thefollowings.1. Camp-on to be cleared.2. Last number redial to be cleared.3. Saved number redial to be cleared.4. Calls on hold are terminated.5. Calls on exclusive hold are terminated.6. Calls in progress are terminated.7. Call park to be cleared.8. Message Waiting to be cleared.Data that are stored in memory other than abovementioned will not be cleared by use of the ResetButton.POSSIBLE SOLUTIONSet the Power failure switch to OFF.When the headset is not used, set the HANDSET/HEADSET selector to the “HANDSET” position.@Set to “HIGH” or “LOW”.l See “CO Line Ringing Selection” on page 4-58.l Set the Power failure switch to ON.l Set the Tone/Pulse switch to the other position.l Disconnect KX-Tl23220, KX-Tl23250,KX-T61620, KX-T61650, KX-T30820 orKX-T30850 and connect the KX-T123230,KX-T61631, KX-T61630, KX-T30830 or astandard telephone.NoteIf the system does not operate properly, push theReset Button.If there still is no difference, switch the power offand on again after 5 minutes. If the system still doesnot work, switch the power off.The following extensions will be directly connectedto each of the central office lines (C.O.).Extension connected to jack number01 . . . CO 1Extension connected to jack number02 . . . . CO 2Extension connected to jack number09 . . . . . . CO 5Extension connected to jack number10 . . . . . . CO 6Extension connected to jack number17 . . CO 9Extension connected to jack number18 . . . . . . CO1 0If the automobile type battery is connected to thesystem, disconnect it.6-3