KX-TS500FXB Datasheet (Panasonic) - Telephone Service Manual

KX-TS500FXB, Telephone Service Manual

When a dial key is pressed, a DTMF signal is output from Pin 25 of IC1 as an analog synthetic wave.

The signal flow to the line is as follows.

Pin 25 of IC1 → Q3 → R9 → Q1 → Tel Line.

The DTMF signal is sent to the line via the fo

ORDER NO.

KM40310272C2 Telephone Equipment KX-TS500FXB KX-TS500FXC KX-TS500FXH KX-TS500FXR KX-TS500FXW Integrated Telephone System Black Version Blue Version Gray Version Red Version White Version (for Nordic model) © 2003 Panasonic Communications Co., Ltd.

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Free Datasheet http://www.datasheet4u.net/ KX-TS500FXB / KX-TS500FXC / KX-TS500FXH / KX-TS500FXR / KX-TS500FXW CONTENTS Page 1 ABOUT LEAD FREE SOLDER (PbF

KX-TS500FXB Features

* 7.1. For Call Waiting Service Users 7.2. Temporary Tone Dialing (For Rotary or Pulse Service Users) 8 DISASSEMBLY INSTRUCTIONS 9 TROUBLE SHOOTING GUIDE 9.1. Service Hints 9.2. Pulse Dialing Problems 9.3. Problems With the Handset 9.4. Tone Dialing Problems 9.5. Problems With Ringer 9.6. How to Check