Panasonic KX-TG5621BXS Cordless Phone Manuals

Manuals and User Guides for Panasonic KX-TG5621BXS Cordless Phone. We have 1 Panasonic KX-TG5621BXS Cordless Phone manual available for free PDF download: Service Manual

Panasonic KX-TG5621BXS Service Manual

Panasonic KX-TG5621BXS Service Manual (104 pages)

5.8 GHz Digital Cordless Phone

Brand: Panasonic | Category: Cordless Telephone | Size: 2.62 MB

Table of Contents

Table of Contents
2
ABOUT LEAD FREE SOLDER (Pbf: Pb Free)
4
Suggested Pbf Solder
4
How to Recognize that Pb Free Solder Is Used
5
For Service Technicians
5
Caution
5
Operating Instructions
6
Battery
6
Location of Controls
7
Displays
8
Settings
10
Troubleshooting
14
Disassembly Instructions
16
Base Unit
16
Handset
17
How to Replace the Handset Lcd
18
Troubleshooting Guide
19
Check Power
20
Check Battery Charge
21
Check Link
22
Check the RF Part
23
Check Handset Transmission
29
Check Handset Reception
29
Check Caller ID
29
Adjustment and Test Mode
30
Test Mode Flow Chart for Base Unit
30
Test Mode Flow Chart for Handset
34
X501 (Base Unit), X201 (Handset) Check
38
Adjust Battery Low Detector Voltage (Handset)
38
Base Unit Reference Drawing
39
Handset Reference Drawing
40
Frequency Table
41
How to Clear User Setting (Handset Only)
43
Description
44
Frequency
44
FHSS (Frequency Hopping Spread Spectrum)
44
Signal Flowchart in the Whole System
46
Explanation of Link Data Communication
47
Calling
47
To Terminate Communication
47
Ringing
47
Circuit Operation (Base Unit_Main)
49
DSP (Digital Speech/Signal Processing: IC501)
49
Eeprom: (Ic611)
49
Power Supply Circuit
50
Reset Circuit
52
Telephone Line Interface
53
Parallel Connection Detect Circuit
54
Calling Line Identification (Caller ID)
55
Circuit Operation (Rf Part)
58
Power Supply Circuit
59
Ghz Mod/Demod Circuit
60
Ghz Converter Circuit
61
Ghz PA (Power Amplifier), 5.8Ghz LNA (Low Noise Amplifier) and Antenna Switch Circuit
62
Block Diagram (Handset)
63
Circuit Operation (Handset)
64
Construction
64
Power Supply Circuit
65
Charge Circuit
66
Ringer and Handset SP-Phone
66
Sending Signal
67
Reception Signal
67
Signal Route
68
Cpu Data (Base Unit)
69
Ic501
69
Cpu Data (Handset)
70
Ic201
70
Explanation of IC Terminals (Rf Part)
71
Ic701
71
Ic801
72
Ic851
73
How to Replace the Flat Package IC
74
Preparation
74
How to Remove the IC
74
How to Install the IC
75
How to Remove a Solder Bridge
75
HOW to REPLACE the LLP (Leadless Leadframe Package)
76
Preparation
76
Caution
76
How to Remove the IC
76
How to Install the IC
77
How to Remove a Solder Bridge
77
Cabinet and Electrical Parts (Base Unit)
78
Cabinet and Electrical Parts (Handset)
79
Accessories and Packing Materials
80
TERMINAL GUIDE of the Ics, TRANSISTORS and DIODES
81
Base Unit
81
Handset
81

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