配件 & 工具
== Phone will not turn on == * The battery could be low. Try charging the battery with the phone's accompanying unit: the Panasonic KX-T4000H. * If the phone still does not turn on, then the battery could be damaged. Order a new battery from [http://shop.panasonic.com/shop/model/P-P202PA|Panasonic's website] and follow the [guide|11201] guide to remove the damaged battery from your phone. == Push 'Open' button is stuck == * If the button to open the phone is stuck, follow the [guide|11207] guide to open the back cover of the phone to gain access to the open latch. ** Note that the latch for opening the phone and extending the antenna is the same for both. == Rubber Keypad is Unresponsive == * The battery might need to be charged. Charge the battery in the unit's receiver, the Panasonic KX-T4000H. * If the phone turns on but the buttons still do not work, the motherboard could be damaged. For instructions on how to access the motherboard, look through the [guide|11410] guide. == Poor Reception == * If you are having issues with reception, try moving closer to the receiver, the Panasonic KX-T4000H. * If your reception does not improve after getting closer to the receiver, your antenna may be damaged. Follow the [guide|11207] guide to access the antenna for removal. == User cannot hear the correspondent == * If you are having issues with reception, try moving closer to the receiver, the Panasonic KX-T4000H. * The volume of the phone may be too low. Increase the volume using the volume slider on the side of the phone. * If hearing issues persist, the phone speaker could be damaged. Follow the [guide|11410] guide to access the speaker. * '''Note: The removal of the speaker will require soldering to both be destroyed for removal and reapplied once the speaker has been replaced.''' == Correspondent cannot hear the user == * If you are having issues with reception, try moving closer to the receiver, the Panasonic KX-T4000H. * The microphone of the phone could be damaged. Consult the [http://www.electronica.ro/schematics/panasonic/cordless_phone/4000.pdf|KX-T4000R Service Manual] to try and find the appropriate method to remove the microphone.