Panasonic KX-TG3721BXN Manuals

Manuals and User Guides for Panasonic KX-TG3721BXN. We have 1 Panasonic KX-TG3721BXN manual available for free PDF download: Service Manual

Panasonic KX-TG3721BXN Service Manual

Panasonic KX-TG3721BXN Service Manual (96 pages)

2.4 GHz Digital Cordless Answering System

Brand: Panasonic | Category: Telephone | Size: 3.72 MB

Table of Contents

Table of Contents
3
Safety Precautions
4
For Service Technicians
4
Warning
4
Battery Caution
4
About Lead Free Solder (Pbf: Pb Free)
4
Discarding of P. C. Board
5
Specifications
6
Technical Descriptions
7
FHSS Description
7
Block Diagram (Base Unit_Main)
9
Tel Interface Circuit
10
Block Diagram (Base Unit_Rf Part)
11
Circuit Operation (Base Unit)
12
Block Diagram (Handset)
18
Block Diagram (Handset_Rf Part)
19
Circuit Operation (Handset)
20
Behavior of Electric Power Failure
22
Circuit Operation (Charger Unit)
22
Signal Route
23
Location of Controls and Components
25
Installation Instructions
25
Operating Instructions
25
Test Mode
26
Engineering Mode
26
Copying Phonebook Items When Repairing
30
Service Mode
32
How to Clear User Setting
32
Troubleshooting Guide
33
Troubleshooting Flowchart
33
Disassembly and Assembly Instructions
44
Disassembly Instructions
44
How to Replace the Base Unit LCD
48
How to Replace the Handset LCD
50
Measurements and Adjustments
51
Equipment Required
51
The Setting Method of JIG
51
Adjustment of Base Unit
55
Adjustment of Handset
56
Adjustment Standard (Base Unit)
59
Adjustment Standard (Charger Unit)
60
Adjustment Standard (Handset)
61
Things to Do after Replacing IC or X'tal
62
How to Check the Handset Receiver
64
Frequency Table (Mhz)
65
Miscellaneous
66
How to Replace the LLP
66
Package
66
How to Replace the Flat Package
68
How to Replace the Shield Case
70
Terminal Guide of the Ics, Transistors and Diodes
72
Schematic Diagram
73
For Schematic Diagram
73
Schematic Diagram (Base Unit_Main)
74
Schematic Diagram (Base Unit_Rf)
76
Schematic Diagram (Base Unit_Operation)
77
Schematic Diagram (Handset_Main)
78
Schematic Diagram (Charger Unit)
80
Printed Circuit Board
81
Circuit Board (Base Unit_Main)
81
Circuit Board (Base Unit_Operation)
83
Circuit Board (Handset_Main)
85
Circuit Board (Charger Unit)
87
Exploded View and Replacement Parts List
88
Cabinet and Electrical Parts (Base Unit)
88
Cabinet and Electrical Parts (Handset)
89
Cabinet and Electrical Parts (Charger Unit)
90
Accessories
91
Replacement Parts List
92

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