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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of PANASONIC KXT7720 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 9 (click to view)
Location of Controls
9 DIALING BUTTONS WITH BACKLIGHT (KX-T7731/36): Dialing buttons are backlit when (1) you receive a call, (2) during a conversation, or (3) when BGM is activated at your phone. TRANSFER: Used to transfer a call to another party. HOLD: Used to place a call on hold. SP-PHONE (Other than KX-T7750): Used for the handsfree operation. MONITOR (KX-T7750 only): Used for handsfree dialing. You can monitor the other party's voice handsfree. 13 NAVIGATOR KEY (KX-T7730/7731/7735/7736): Used to adjust the volume and the display contrast, or select desired items. VOLUME KEY (KX-T7720/7750): Used to adjust the volume. 14 Programmable Feature (PF) Button: Used as an One-Touch Dialing button (Button assignment is required). 15 Flexible Outside (CO) Line Button: Used to make or receive an outside call. Pressing this button seizes an idle outside line automatically. (Button assignment is required.) Also used as feature buttons. (Button assignment is required.) PAUSE: Used to insert a pause during dialing. MESSAGE: Used to leave a message waiting indication, or call back the party who left the message waiting indication. 18 Message/Ringer Lamp: The Message/ Ringer lamp informs you visually that you have a message or a call. When you receive a call, the lamp flashes depending on the ringing pattern. When the ringing pattern is set to Single (Slow flash), Double (Moderate flash), or Triple (Rapid flash) in your PBX, the lamp flashes. When the other ringing patterns are set in your PBX, the lamp may not flash. (e.g., S-Double, Call Waiting Tone1). When someone has left you a message, the lamp is lit continuously.

10 11 12

16 17

Initial Settings
Speaker volume *
While on-hook or during a conversation

Handset/Headset volume *
While using the handset or headset


Press Up or Down.

Press Up or Down.

Ringer volume/Backlight illumination

Display contrast *


Slide the lever of the RINGER Volume Selector and BACKLIGHT Illumination Selector to the desired setting. BACKLIGHT SW POSITION LCD backlight 2 HIGH 1 LOW 0 OFF

Press Left or Right.

DIALING BUTTONS backlight AUTO AUTO OFF AUTO: The backlight shines only during operation.

* The above settings may return to default settings if the telephone line cord is disconnected, or the main unit's power is interrupted.


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