Read Panasonic KX-TCA175RU Service Manual online
2
KX-TCA175RU
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. For Service Technicians ---------------------------------3
2 Warning --------------------------------------------------------------3
2.1. About Lead Free Solder (PbF: Pb free) --------------3
2.1.1. Suggested PbF Solder -------------------------------3
2.2. Battery Caution ---------------------------------------------4
2.3. Discarding of P. C. Board --------------------------------4
2.3. Discarding of P. C. Board --------------------------------4
3 Specifications ------------------------------------------------------5
4 Technical Descriptions------------------------------------------6
4 Technical Descriptions------------------------------------------6
4.1. Block Diagram (Handset) --------------------------------6
4.2. Circuit Operation (Handset) -----------------------------7
4.2. Circuit Operation (Handset) -----------------------------7
4.2.1. Outline----------------------------------------------------7
4.2.2. Power Supply Circuit/Reset Circuit ---------------7
4.2.3. Charge Circuit (Include Charger)------------------8
4.2.4. Battery Low/Power Down Detector ---------------8
4.2.5. TX Audio Path------------------------------------------9
4.2.6. RX Audio Path --------------------------------------- 11
4.2.7. Ringer Circuit ----------------------------------------- 12
4.2.8. Key Click Sound Circuit---------------------------- 12
4.2.2. Power Supply Circuit/Reset Circuit ---------------7
4.2.3. Charge Circuit (Include Charger)------------------8
4.2.4. Battery Low/Power Down Detector ---------------8
4.2.5. TX Audio Path------------------------------------------9
4.2.6. RX Audio Path --------------------------------------- 11
4.2.7. Ringer Circuit ----------------------------------------- 12
4.2.8. Key Click Sound Circuit---------------------------- 12
5 Location of Controls and Components------------------ 13
5.1. Handset----------------------------------------------------- 13
6 Installation Instructions--------------------------------------- 15
6.1. Charger Connection ------------------------------------- 15
6.2. Battery ------------------------------------------------------ 15
6.2. Battery ------------------------------------------------------ 15
6.2.1. Battery Installation ---------------------------------- 15
6.2.2. Charging the Battery-------------------------------- 15
6.2.3. Battery Information---------------------------------- 16
6.2.4. Low Battery Warning ------------------------------- 16
6.2.5. Replacing the Batteries ---------------------------- 16
6.2.2. Charging the Battery-------------------------------- 15
6.2.3. Battery Information---------------------------------- 16
6.2.4. Low Battery Warning ------------------------------- 16
6.2.5. Replacing the Batteries ---------------------------- 16
7 Operating Instructions ---------------------------------------- 17
7.1. Soft Keys --------------------------------------------------- 17
7.2. Handset Setting Menu Layout ------------------------ 19
7.3. Key Lock---------------------------------------------------- 20
7.4. Selecting the Display Language---------------------- 20
7.5. DISPLAY --------------------------------------------------- 21
7.6. Function Menus------------------------------------------- 22
7.2. Handset Setting Menu Layout ------------------------ 19
7.3. Key Lock---------------------------------------------------- 20
7.4. Selecting the Display Language---------------------- 20
7.5. DISPLAY --------------------------------------------------- 21
7.6. Function Menus------------------------------------------- 22
7.6.1. Main Menu-While in Standby Mode------------- 22
7.6.2. Sub Menu-While Off-hook/During a
7.6.2. Sub Menu-While Off-hook/During a
Conversation ----------------------------------------- 22
7.7. Function Keys --------------------------------------------- 23
7.8. Flexible Keys ---------------------------------------------- 24
7.9. Caller ID ---------------------------------------------------- 25
7.8. Flexible Keys ---------------------------------------------- 24
7.9. Caller ID ---------------------------------------------------- 25
7.10. Character Mode Table ---------------------------------- 26
8 Troubleshooting Guide---------------------------------------- 27
8.1. Power Trouble (Handset) ------------------------------ 28
8.1.1. Power Does Not Go On---------------------------- 28
8.2. Battery Charge Trouble (Handset)------------------- 30
8.2.1. Charge On -------------------------------------------- 30
8.2.2. Charge Off--------------------------------------------- 31
8.2.2. Charge Off--------------------------------------------- 31
8.3. LED Trouble (Handset) --------------------------------- 32
8.3.1. Key Back-Light --------------------------------------- 32
8.3.2. Charging And Ringing LED ----------------------- 32
8.3.2. Charging And Ringing LED ----------------------- 32
8.4. Ringer Trouble (Handset) ------------------------------ 33
8.5. No Voice Transmission --------------------------------- 33
8.6. No Voice Reception-------------------------------------- 34
8.5. No Voice Transmission --------------------------------- 33
8.6. No Voice Reception-------------------------------------- 34
8.6.1. Talk Mode --------------------------------------------- 34
8.6.2. Speakerphone Mode ------------------------------- 35
8.6.2. Speakerphone Mode ------------------------------- 35
8.7. Password Trouble---------------------------------------- 35
8.7.1. User Password is forgotten.---------------------- 35
8.7.2. System Lock Password is forgotten. ----------- 35
8.7.2. System Lock Password is forgotten. ----------- 35
9 Service Fixture & Tools--------------------------------------- 36
10 Disassembly and Assembly Instructions -------------- 37
10.1. Handset ---------------------------------------------------- 37
10.2. Charger Unit ---------------------------------------------- 37
10.2. Charger Unit ---------------------------------------------- 37
11 Measurements and Adjustments -------------------------- 38
11.1. Check Procedure (Handset) -------------------------- 38
11.1.1. Preparation ------------------------------------------- 38
11.1.2. PC Setting -------------------------------------------- 38
11.1.3. Download Manual----------------------------------- 39
11.1.2. PC Setting -------------------------------------------- 38
11.1.3. Download Manual----------------------------------- 39
11.2. Adjustments (Handset and Charger Unit) --------- 44
11.2.1. Adjustment (Handset)------------------------------ 44
11.2.2. Adjustment Standard (Handset)----------------- 46
11.2.3. Adjustment (Charger Unit)------------------------ 48
11.2.4. Adjustment Standard (Charger Unit) ----------- 48
11.2.2. Adjustment Standard (Handset)----------------- 46
11.2.3. Adjustment (Charger Unit)------------------------ 48
11.2.4. Adjustment Standard (Charger Unit) ----------- 48
11.3. RF Specification (Handset)---------------------------- 48
11.4. How to Check the Handset Speaker---------------- 49
11.5. How to Check the Handset Receiver --------------- 49
11.6. Frequency Table (MHz) -------------------------------- 50
11.4. How to Check the Handset Speaker---------------- 49
11.5. How to Check the Handset Receiver --------------- 49
11.6. Frequency Table (MHz) -------------------------------- 50
12 Miscellaneous --------------------------------------------------- 51
12.1. How To Replace a Flat Package IC----------------- 51
12.1.1. Preparation ------------------------------------------- 51
12.1.2. Removal Procedure -------------------------------- 51
12.1.3. Procedure--------------------------------------------- 51
12.1.4. Removing Solder From Between Pins--------- 51
12.1.2. Removal Procedure -------------------------------- 51
12.1.3. Procedure--------------------------------------------- 51
12.1.4. Removing Solder From Between Pins--------- 51
12.2. Terminal Guide of the ICs Transistors and
Diodes ------------------------------------------------------ 52
12.2.1. Handset ----------------------------------------------- 52
12.2.2. Charger Unit------------------------------------------ 52
12.2.2. Charger Unit------------------------------------------ 52
12.3. Memo ------------------------------------------------------- 53
13 Schematic Diagram -------------------------------------------- 54
13.1. Handset ---------------------------------------------------- 54
13.2. Handset (RF Unit) --------------------------------------- 56
13.3. Charger Unit ---------------------------------------------- 57
13.2. Handset (RF Unit) --------------------------------------- 56
13.3. Charger Unit ---------------------------------------------- 57
14 Printed Circuit Board------------------------------------------ 58
14.1. Handset ---------------------------------------------------- 58
14.1.1. Component View------------------------------------ 58
14.1.2. Flow Solder Side View----------------------------- 59
14.1.2. Flow Solder Side View----------------------------- 59
14.2. Charger Unit ---------------------------------------------- 60
14.2.1. Component View------------------------------------ 60
14.2.2. Flow Solder Side View----------------------------- 60
14.2.2. Flow Solder Side View----------------------------- 60
15 Appendix Information of Schematic Diagram -------- 60
16 Exploded View and Replacement Parts List----------- 61
16 Exploded View and Replacement Parts List----------- 61
16.1. CPU Data (Handset) ------------------------------------ 61
16.1.1. IC3 (BBIC) -------------------------------------------- 61
16.2. Cabinet and electrical Parts Location--------------- 63
16.2.1. Handset ----------------------------------------------- 63
16.2.2. Charger Unit------------------------------------------ 64
16.2.3. Accessories and Packing Materials ------------ 65
16.2.2. Charger Unit------------------------------------------ 64
16.2.3. Accessories and Packing Materials ------------ 65
16.3. Replacement Parts List -------------------------------- 66
16.3.1. Cabinet and Electrical Parts (Handset)-------- 66
16.3.2. Cabinet and Electrical Parts (Charger unit) -- 66
16.3.3. Accessories and Packing Materials ------------ 66
16.3.4. Handset Board Parts------------------------------- 67
16.3.5. Charger unit Board Parts ------------------------- 69
16.3.6. Fixtures and Tools ---------------------------------- 69
16.3.2. Cabinet and Electrical Parts (Charger unit) -- 66
16.3.3. Accessories and Packing Materials ------------ 66
16.3.4. Handset Board Parts------------------------------- 67
16.3.5. Charger unit Board Parts ------------------------- 69
16.3.6. Fixtures and Tools ---------------------------------- 69
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