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Panasonic KX-TG8421EB

Panasonic KX-TG8421EB
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© Panasonic Communications Co., Ltd. 2009.
Unauthorized copying and distribution is a viola-
tion of law.
ORDER NO. KM40901797CE
Telephone Equipment
Model No. KX-TG8421EB
KX-TG8421EM
KX-TG8421EN
KX-TG8422EB
KX-TG8422EM
KX-TG8422EN
KX-TG8423EB
KX-TG8423EM
KX-TG8423EN
KX-TG8424EB
KX-TG8424EM
KX-TG8424EN
KX-TGA840EB
KX-TGA840EM
KX-TGA840EN
Digital Cordless Answering System
B:Black Version
M:Metallic Grey Version
N:Platinum Silver Version
(for United Kingdom)

Table of Contents

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Panasonic KX-TG8421EB Specifications

General IconGeneral
Number of Handsets1
Answering MachineYes
Answering SystemDigital
Caller IDYes
Call Waiting Caller IDYes
DisplayLCD
Backlit DisplayYes
Battery Life (Talk Time)10 hours
Battery Life (Standby)120 hours
SpeakerphoneYes
IntercomYes
GAP CompatibleYes
Expandable up to6 handsets
Frequency1.9 GHz
RangeUp to 300 meters outdoors, 50 meters indoors

Summary

Safety Precautions and Warnings

For Service Technicians

Guidelines for safe and proper repair procedures to prevent hazards.

Battery Cautions and Lead-Free Solder Information

Information on battery handling and the use of lead-free solder.

Technical Descriptions

Operating Instructions

General Troubleshooting

Resolving common operational issues and problems.

Service Mode

Engineering Mode Operations

Accessing and using the engineering mode for adjustments.

Troubleshooting Guide

Troubleshooting Flowchart

Step-by-step guide to diagnose and resolve system issues.

Power Checks

Procedures to verify power supply levels in base unit and handset.

Battery Charge Checks

Steps to check battery charging functionality.

Link and RF Connectivity Checks

Diagnosing issues related to wireless link and RF signal.

Transmission, Reception, and Caller ID Checks

Procedures for checking audio transmission, reception, and Caller ID.

Symptom-Based Troubleshooting (Base Unit)

Troubleshooting common symptoms for base and charger units.

Symptom-Based Troubleshooting (Handset)

Troubleshooting common symptoms for the handset.

Disassembly and Assembly Instructions

Measurements and Adjustments

JIG Setup and PC Configuration (Base Unit)

Preparing and connecting JIG and PC for base unit adjustments.

Adjustment Standards (Base Unit)

Reference values and procedures for base unit adjustments.

JIG Setup and PC Configuration (Handset)

Preparing and connecting JIG and PC for handset adjustments.

Adjustment Standards (Handset)

Reference values and procedures for handset adjustments.

Schematic Diagrams

Exploded View and Replacement Parts List

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