Panasonic KX-TG4221N

© Panasonic System Networks Co., Ltd. 2013
Unauthorized copying and distribution is a violation
of law.
ORDER NO. KM41301650CE
F13
Telephone Equipment
Model No. KX-TG4221N
KX-TG4222N
KX-TG4223N
KX-TG313SK
KX-TG4224N
KX-TG4225N
KX-TGA421N
Digital Cordless Answering System
N: Champagne Gold Version
(for U.S.A.)
(Handset)
KX-TGA421N KX-TG4221N
(Base Unit)
Caller ID Compatible
(Charger Unit)
Model No
Base Unit Handset Charger Unit Expandable
KX-TG4221
1 (TG4221) 1 (TGA421) Up to 6
KX-TG4222
1 (TG4221) 2 (TGA421) 1 Up to 6
KX-TG4223
1 (TG4221) 3 (TGA421) 2 Up to 6
KX-TG313SK
1 (TG4221) 3 (TGA421) 2 Up to 6
KX-TG4224
1 (TG4221) 4 (TGA421) 3 Up to 6
KX-TG4225
1 (TG4221) 5 (TGA421) 4 Up to 6
Configuration for each model
Information for optional accessories
You can expand your phone system by registering optional
handsets (KX-TGA421) to a single
base unit.
Optional handsets and the supplied handset are different model
so that some functions may not be available.
Refer to each Operating Instruction for details.

Panasonic KX-TG4221N Specifications

General

Brand	Panasonic
Model	KX-TG4221N
Category	Answering Machine
Language	English

Summary

1 Safety Precautions

1.1. For Service Technicians

2 Warning

2.1. Battery Caution

Caution regarding the risk of explosion if the battery is replaced incorrectly.

3 Specifications

4 Technical Descriptions

4.2. Block Diagram (Base UnitMain)

Block diagram illustrating the main components and connections of the base unit.

4.4. Circuit Operation (Base Unit)

Detailed explanation of the circuit operations within the base unit.

4.5. Block Diagram (Handset)

Block diagram illustrating the main components and connections of the handset.

4.7. Circuit Operation (Handset)

Detailed explanation of the circuit operations within the handset.

7 Operating Instructions

8 Test Mode

8.1. Engineering Mode

10 Troubleshooting Guide

10.1. Troubleshooting Flowchart

A flowchart to diagnose and resolve common issues with the telephone system.

11 Disassembly and Assembly Instructions

11.1. Disassembly Instructions

Step-by-step instructions for disassembling the base unit and handset.

11.2. How to Replace the Handset LCD

14 Schematic Diagram

14.1. For Schematic Diagram

15 Printed Circuit Board

15.1. Circuit Board (Base UnitMain)

Component view of the main printed circuit board for the base unit.

15.3. Circuit Board (HandsetMain)

16 Exploded View and Replacement Parts List

16.1. Cabinet and Electrical Parts (Base Unit)

16.2. Cabinet and Electrical Parts (Handset)

16.5. Replacement Parts List