User Manuals: Panasonic KX-TGF344B Cordless Phone

Manuals and User Guides for Panasonic KX-TGF344B Cordless Phone. We have 1 Panasonic KX-TGF344B Cordless Phone manual available for free PDF download: Service Manual

Panasonic KX-TGF344B Service Manual

Panasonic KX-TGF344B Service Manual (114 pages)

Brand: Panasonic | Category: Telephone | Size: 9.33 MB

Table of Contents

Table of Contents
3
Safety Precautions

5
- For Service Technicians
  5
Warning

5
- Battery Caution
  5
- About Lead Free Solder (Pbf: Pb Free)
  5
  - Suggested Pbf Solder
    6
  - Discarding of P. C. Board
    6
Specifications

7
Technical Descriptions

8
- Circuit Configuration
  8
  - Series Phones
    8
  - DECT Description
    9
    
    TDD Frame Format
    9
    
    TDMA System
    9
    
    Signal Flowchart in the Radio Parts
    10
  - Block Diagram (Base Unit_Main)
    11
  - Tel Interface Circuit
    12
  - Block Diagram (Base Unit_Rf Part)
    13
  - Circuit Operation (Base Unit)
    14
    
    BBIC (Base Band IC: IC501)
    14
    
    Flash Memory (IC502)
    14
    
    Flash Memory (IC601)
    14
    
    Bluetooth Unit (IC721)
    14
    
    Power Supply Circuit/Reset Circuit
    15
    
    Telephone Line Interface
    17
    
    Parallel Connection Detect Circuit/Auto Disconnect Circuit
    18
    
    Calling Line Identification (Caller ID)/Call Waiting Caller
    19
  - Block Diagram (Handset)
    21
  - Block Diagram (Handset_Rf Part)
    22
  - Circuit Operation (Handset)
    23
    
    Outline
    23
    
    Power Supply Circuit/Reset Circuit
    23
    
    Charge Circuit
    24
    
    Battery Low/Power down Detector
    24
    
    Speakerphone
    24
- Behavior of Electric Power Failure
  25
- Circuit Operation (Charger Unit)
  25
- Signal Route
  26
Location of Controls and Components

28
Installation Instructions

28
Operating Instructions

28
Test Mode

29
- Engineering Mode
  29
  - Base Unit
    29
  - Handset
    31
Service Mode

33
- How to Clear User Setting (Handset Only)
  33
Troubleshooting Guide

34
- Troubleshooting Flowchart
  34
  - Check Power
    35
  - Check Record
    36
  - Check Playback
    39
  - Check Battery Charge
    39
  - Check Link
    40
  - Check the RF Part
    42
  - Registering a Handset to the Base Unit
    46
  - Deregistering a Handset
    46
  - Check Handset Transmission
    47
- Check Handset Reception
  47
- Check Caller ID
  47
- Check BT Communication
  48
Disassembly and Assembly Instructions

50
- Disassembly Instructions
  50
  - Base Unit
    50
  - Handset
    54
  - Charger Unit
    55
- How to Replace the Base Unit LCD
  56
- How to Replace the Handset LCD
  58
Measurements and Adjustments

59
- Equipment Required
  59
- The Setting Method of JIG
  59
  - Connections (Base Unit)
    59
  - Connections (Handset)
    60
  - How to Install Batch File into P.C
    61
  - Commands
    62
- Adjustment Standard (Base Unit)
  63
  - Bottom View
    63
- Adjustment Standard (Handset)
  64
  - Component View
    64
- Things to Do after Replacing IC or X'tal
  65
  - How to Download the Data
    65
- Frequency Table
  70
- Bluetooth Frequency Table
  71
Miscellaneous

72
- How to Replace the LLP (Leadless Leadframe Package) IC
  72
  - Preparation
    72
  - Caution
    72
  - How to Remove the IC
    72
  - How to Install the IC
    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
- Terminal Guide of the Ics, Transistors and Diodes
  76
  - Base Unit
    76
  - Handset
    76
Schematic Diagram

77
Printed Circuit Board

87
- Circuit Board (Base Unit_Main)
  87
  - Component View
    87
- Bottom View
  88
- Circuit Board (Base Unit_Operation)
  89
- Circuit Board (Base Unit_Led)
  89
- Circuit Board (Handset_Main)
  91
  - Component View
    91
  - Bottom View
    92
- Circuit Board (Handset_Bbic Module)
  93
  - Component View
    93
Exploded View and Replacement Parts List

94
- Cabinet and Electrical Parts (Base Unit)
  94
- Cabinet and Electrical Parts (Handset)
  95
- Cabinet and Electrical Parts (Charger Unit)
  96
- Accessories and Packing Materials
  97
  - Kx-Tgf340B
    97
  - Kx-Tgf342B
    98
  - Kx-Tgf343B
    99
  - Kx-Tgf344B
    100
  - Kx-Tgf345B
    101
  - Kx-Tgf372S
    102
  - Kx-Tgf373S
    103
  - Kx-Tgf374S
    104
  - Kx-Tgf375S
    105
- Kx-Tg585Sk
  105
- Kx-Tgfa30B
  106
- Kx-Tgfa30S
  106
- Kx-Tgfa30M
  107
- Replacement Parts List
  108
  - Base Unit
    108
  - Handset
    111
  - Charger Unit
    112
  - Accessories and Packing Materials
    113
  - Screws
    114
  - Fixtures and Tools
    114

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