Panasonic KX-TGH262B, Service Manual

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KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20
TABLE OF CONTENTS
PAGE PAGE
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. US-DECT Description ------------------------------------ 8
4.1.1. TDD Frame Format ---------------------------------- 8
4.1.2. TDMA system------------------------------------------ 8
4.1.3. Signal Flowchart in the Radio Parts-------------- 9
4.2. Block Diagram (Base Unit_Main)---------------------10
4.3. Tel Interface Circuit--------------------------------------- 11
4.4. Block Diagram (Base Unit_RF Part) -----------------12
4.5. Circuit Operation (Base Unit) --------------------------13
4.5.1. BBIC (Base Band IC: IC501) ---------------------13
4.5.2. Flash Memory (IC502)------------------------------13
4.5.3. Flash Memory (IC601)------------------------------13
4.5.4. EEPROM (IC611) ------------------------------------13
4.5.5. Bluetooth Unit (IC721) ------------------------------13
4.5.6. Power Supply Circuit/Reset Circuit--------------14
4.5.7. Telephone Line Interface---------------------------16
4.5.8. Parallel Connection Detect Circuit/Auto
Disconnect Circuit -----------------------------------17
4.5.9. Calling Line Identification (Caller ID)/Call
Waiting Caller ID -------------------------------------18
4.6. Block Diagram (Handset)-------------------------------20
4.7. Block Diagram (Handset_RF Part)-------------------21
4.8. Circuit Operation (Handset)----------------------------22
4.8.1. Outline --------------------------------------------------22
4.8.2. Power Supply Circuit/Reset Circuit--------------22
4.8.3. Charge Circuit ----------------------------------------23
4.8.4. Battery Low/Power Down Detector--------------23
4.8.5. Speakerphone ----------------------------------------23
4.9. Behavior of Electric Power Failure -------------------24
4.10. Circuit Operation (Charger Unit) ----------------------24
5 Location of Controls and Components ------------------ 25
6 Installation Instructions --------------------------------------- 25
7 Operating Instructions ----------------------------------------- 25
8 Test Mode ---------------------------------------------------------- 26
8.1. Engineering Mode ----------------------------------------26
8.1.1. Base Unit ----------------------------------------------26
8.1.2. Handset ------------------------------------------------28
9 Service Mode ----------------------------------------------------- 30
9.1. How to Clear User Setting (Handset Only)---------30
10 Troubleshooting Guide ---------------------------------------- 31
10.1. Troubleshooting Flowchart -----------------------------31
10.1.1. Check Power------------------------------------------32
10.1.2. Check Record ----------------------------------------33
10.1.3. Check Playback -------------------------------------36
10.1.4. Check Battery Charge ------------------------------36
10.1.5. Check Link---------------------------------------------37
10.1.6. Check the RF part -----------------------------------39
10.1.7. Registering a Handset to the Base Unit--------43
10.1.8. Deregistering a Handset ---------------------------43
10.1.9. Check Handset Transmission --------------------44
10.1.10. Check Handset Reception ------------------------ 44
10.1.11. Check Caller ID ------------------------------------- 44
10.1.12. Check BT Communication ------------------------ 45
11 Disassembly and Assembly Instructions --------------- 47
11.1. Disassembly Instructions------------------------------- 47
11.1.1. Base Unit ---------------------------------------------- 47
11.1.2. Handset ------------------------------------------------ 49
11.1.3. Charger Unit ------------------------------------------ 50
11.2. How to Replace the Handset LCD------------------- 51
12 Measurements and Adjustments -------------------------- 52
12.1. Equipment Required ------------------------------------ 52
12.2. The Setting Method of JIG----------------------------- 52
12.2.1. Connections (Base Unit) -------------------------- 52
12.2.2. Connections (Handset) ---------------------------- 53
12.2.3. How to install Batch file into P.C. ---------------- 54
12.2.4. Commands-------------------------------------------- 55
12.3. Adjustment Standard (Base Unit) -------------------- 56
12.3.1. Bottom View ------------------------------------------ 56
12.4. Adjustment Standard (Handset) ---------------------- 57
12.4.1. Component View ------------------------------------ 57
12.5. Things to Do after Replacing IC or X'tal ------------ 58
12.5.1. How to download the data ------------------------ 58
12.6. Frequency Table------------------------------------------ 60
12.7. Bluetooth Frequency Table ---------------------------- 61
13 Miscellaneous ---------------------------------------------------- 62
13.1. How to Replace the LLP (Leadless Leadframe
Package) IC ----------------------------------------------- 62
13.1.1. Preparation-------------------------------------------- 62
13.1.2. Caution------------------------------------------------- 62
13.1.3. How to Remove the IC ----------------------------- 62
13.1.4. How to Install the IC -------------------------------- 63
13.2. How to Replace the Flat Package IC --------------- 64
13.2.1. Preparation-------------------------------------------- 64
13.2.2. How to Remove the IC ----------------------------- 64
13.2.3. How to Install the IC -------------------------------- 65
13.2.4. How to Remove a Solder Bridge ---------------- 65
13.3. Terminal Guide of the ICs, Transistors and
Diodes ------------------------------------------------------ 66
13.3.1. Base Unit ---------------------------------------------- 66
13.3.2. Handset ------------------------------------------------ 66
14 Schematic Diagram -------------------------------------------- 67
14.1. For Schematic Diagram -------------------------------- 67
14.1.1. Base Unit (Schematic Diagram (Base
Unit_Main)) ------------------------------------------- 67
14.1.2. Handset (Schematic Diagram
(Handset_Main))------------------------------------- 67
14.2. Schematic Diagram (Base Unit_Main)-------------- 68
14.2.1. KX-TGH260------------------------------------------- 68
14.3. Schematic Diagram (BT module) -------------------- 70
14.4. Schematic Diagram (Base Unit_Operation) ------- 72
14.4.1. KX-TGH260------------------------------------------- 72
14.5. Schematic Diagram (Handset_Main) --------------- 74
15 Printed Circuit Board ------------------------------------------ 77
15.1. Circuit Board (Base Unit_Main) ---------------------- 77
15.1.1. Component View ------------------------------------ 77
15.1.2. Bottom View ------------------------------------------ 78
15.2. Circuit Board (Base Unit_Operation)---------------- 79
15.2.1. KX-TGH260------------------------------------------- 79