Table Of Contents - Panasonic KX-TGE240B Service Manual

TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 5
1.1. For Service Technicians --------------------------------- 5
2 Warning -------------------------------------------------------------- 5
2.1. Battery Caution--------------------------------------------- 5
2.2. About Lead Free Solder (PbF: Pb free)-------------- 5
2.2.1. Suggested PbF Solder ------------------------------ 6
2.3. Discarding of P. C. Board-------------------------------- 6
3 Specifications ----------------------------------------------------- 7
4 Technical Descriptions ----------------------------------------- 8
4.1. Circuit Configuration
Series Phones---------------------------------------------- 8
4.2. US-DECT Description ------------------------------------ 9
4.2.1. TDD Frame Format ---------------------------------- 9
4.2.2. TDMA system------------------------------------------ 9
4.2.3. Signal Flowchart in the Radio Parts-------------10
4.3. Block Diagram (Base Unit_Main)--------------------- 11
4.4. Tel Interface Circuit---------------------------------------12
4.5. Block Diagram (Base Unit_RF Part) -----------------13
4.6. Circuit Operation (Base Unit) --------------------------14
4.6.1. BBIC (Base Band IC: IC501) ---------------------14
4.6.2. Flash Memory (IC502)------------------------------14
4.6.3. Flash Memory (IC601)------------------------------14
4.6.4. EEPROM (IC611) ------------------------------------14
4.6.5. Bluetooth Unit (IC721) (for KX-TGE26x/
27x only) -----------------------------------------------14
4.6.6. Power Supply Circuit/Reset Circuit--------------15
4.6.7. Telephone Line Interface---------------------------17
4.6.8. Parallel Connection Detect Circuit/Auto
Disconnect Circuit -----------------------------------18
4.6.9. Calling Line Identification (Caller ID)/Call
Waiting Caller ID -------------------------------------19
4.7. Block Diagram (Handset)-------------------------------21
4.8. Block Diagram (Handset_RF Part)-------------------22
4.9. Circuit Operation (Handset)----------------------------23
4.9.1. Outline --------------------------------------------------23
4.9.2. Power Supply Circuit/Reset Circuit--------------23
4.9.3. Charge Circuit ----------------------------------------24
4.9.4. Battery Low/Power Down Detector--------------24
4.9.5. Speakerphone ----------------------------------------24
4.10. Behavior of Electric Power Failure -------------------25
4.11. Circuit Operation (Charger Unit) ----------------------25
5 Location of Controls and Components ------------------26
6 Installation Instructions ---------------------------------------26
7 Operating Instructions-----------------------------------------26
8 Test Mode ----------------------------------------------------------27
8.1. Engineering Mode ----------------------------------------27
8.1.1. Base Unit ----------------------------------------------27
8.1.2. Handset ------------------------------------------------29
9 Service Mode -----------------------------------------------------31
9.1. How to Clear User Setting (Handset Only)---------31
10 Troubleshooting Guide ----------------------------------------32
10.1. Troubleshooting Flowchart -----------------------------32
10.1.1. Check Power------------------------------------------33
10.1.2. Check Record ----------------------------------------34
10.1.3. Check Playback -------------------------------------37
10.1.4. Check Battery Charge ------------------------------37
10.1.5. Check Link---------------------------------------------38
10.1.6. Check the RF part -----------------------------------40
KX-TGE240/242/243/244/245/260/262/263/264/270/272/273/274/275/TG454/TG465/TGEA20/TGA20
PAGE
of TGE24x/26x/27x
10.1.7. Registering a Handset to the Base Unit ------- 44
10.1.8. Deregistering a Handset--------------------------- 44
10.1.9. Check Handset Transmission -------------------- 45
10.1.10. Check Handset Reception ------------------------ 45
10.1.11. Check Caller ID ------------------------------------- 45
10.1.12. Check BT Communication ------------------------ 46
11 Disassembly and Assembly Instructions--------------- 48
11.1. Disassembly Instructions------------------------------- 48
11.1.1. Base Unit ---------------------------------------------- 48
11.1.2. Handset ------------------------------------------------ 52
11.1.3. Charger Unit ------------------------------------------ 53
11.2. How to Replace the Handset LCD------------------- 54
12 Measurements and Adjustments -------------------------- 55
12.1. Equipment Required ------------------------------------ 55
12.2. The Setting Method of JIG----------------------------- 55
12.2.1. Connections (Base Unit) -------------------------- 55
12.2.2. Connections (Handset) ---------------------------- 56
12.2.3. How to install Batch file into P.C. ---------------- 57
12.2.4. Commands-------------------------------------------- 58
12.3. Adjustment Standard (Base Unit) -------------------- 59
12.3.1. Bottom View ------------------------------------------ 59
12.4. Adjustment Standard (Handset) ---------------------- 60
12.4.1. Component View ------------------------------------ 60
12.5. Things to Do after Replacing X'tal ------------------- 61
12.5.1. How to download the data ------------------------ 61
12.6. Frequency Table------------------------------------------ 63
12.7. Bluetooth Frequency Table ---------------------------- 64
13 Miscellaneous---------------------------------------------------- 65
13.1. How to Replace the LLP (Leadless Leadframe
Package) IC ----------------------------------------------- 65
13.1.1. Preparation-------------------------------------------- 65
13.1.2. Caution------------------------------------------------- 65
13.1.3. How to Remove the IC ----------------------------- 65
13.1.4. How to Install the IC -------------------------------- 66
13.2. How to Replace the Flat Package IC --------------- 67
13.2.1. Preparation-------------------------------------------- 67
13.2.2. How to Remove the IC ----------------------------- 67
13.2.3. How to Install the IC -------------------------------- 68
13.2.4. How to Remove a Solder Bridge ---------------- 68
13.3. Terminal Guide of the ICs, Transistors and
Diodes ------------------------------------------------------ 69
13.3.1. Base Unit ---------------------------------------------- 69
13.3.2. Handset ------------------------------------------------ 69
14 Schematic Diagram -------------------------------------------- 71
14.1. For Schematic Diagram -------------------------------- 71
14.1.1. Base Unit (Schematic Diagram (Base
Unit_Main)) ------------------------------------------- 71
14.1.2. Handset
(Handset_Main))------------------------------------- 71
14.2. Schematic Diagram (Base Unit_Main)-------------- 72
14.2.1. KX-TGE240 ------------------------------------------- 72
14.2.2. KX-TGE260 ------------------------------------------- 74
14.2.3. KX-TGE270 ------------------------------------------- 76
14.3. Schematic Diagram (BT module) (for KX-
TGE260/270 only) --------------------------------------- 78
14.4. Schematic Diagram (Base Unit_Operation) ------- 80
14.4.1. KX-TGE240/270 ------------------------------------- 80
14.4.2. KX-TGE260 ------------------------------------------- 81
3
(Schematic Diagram
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