KX-TG6461RUT, KX-TGA641RUT - Panasonic Telephone Service Manual (repair manual)

Model
KX-TG6461RUT KX-TGA641RUT
Pages
96
Size
3.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tg6461rut-kx-tga641rut.pdf
Date

View Panasonic KX-TG6461RUT / KX-TGA641RUT Service Manual online

ORDER NO. KM40905916CE
Telephone Equipment
Model No.
KX-TG6461RUT
KX-TGA641RUT
Digital Cordless Answering System
T: Titanium Black Version
(for Russia)
2
KX-TG6461RUT/KX-TGA641RUT
3
KX-TG6461RUT/KX-TGA641RUT
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 4
1.1. For Service Technicians --------------------------------- 4
2 Warning -------------------------------------------------------------- 4
2.1. Battery Caution--------------------------------------------- 4
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 4
2.3. Discarding of P. C. Board-------------------------------- 5
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions 
----------------------------------------- 7
4.1. Block Diagram (Base Unit) ------------------------------ 7
4.2. Circuit Operation (Base Unit) --------------------------- 8
4.3. Block Diagram (Cordless Handset) ------------------12
4.4. Circuit Operation (Cordless Handset) ---------------13
4.5. Circuit Operation (Charger Unit) ----------------------14
4.6. Signal Route -----------------------------------------------15
5 Location of Controls and Components ------------------18
6 Installation Instructions 
---------------------------------------18
7 Operating Instructions
-----------------------------------------18
7.1. Programmable Settings ---------------------------------18
7.2. For Service Hint-------------------------------------------18
8 Service Mode -----------------------------------------------------19
8.1. Engineering Mode ----------------------------------------19
8.2. Copying Phonebook Items when Repairing -------23
8.3. How to Clear User Setting------------------------------25
9 Troubleshooting Guide ----------------------------------------26
9.1. Troubleshooting Flowchart -----------------------------26
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit) ----------------------------------------------38
9.3. Troubleshooting by Symptom (Cordless
Handset) ----------------------------------------------------42
10 Disassembly and Assembly Instructions ---------------46
10.1. Disassembly Instructions -------------------------------46
10.2. Assembly Instructions -----------------------------------50
11 Measurements and Adjustments---------------------------52
11.1. Equipment Required -------------------------------------52
11.2. The Setting Method of JIG (Base Unit) -------------52
11.3. Adjustment Standard (Base Unit)---------------------54
11.4. Adjustment Standard (Charger Unit)-----------------55
11.5. The Setting Method of JIG (Cordless
Handset) ----------------------------------------------------56
11.6. Adjustment Standard (Cordless Handset)----------58
11.7. Things to Do after Replacing IC or X'tal ------------59
11.8. RF Specification-------------------------------------------61
11.9. How to Check the Cordless Handset Speaker
or Receiver -------------------------------------------------62
11.10. Frequency Table (MHz) ---------------------------------62
12 Miscellaneous ----------------------------------------------------63
12.1. How to Replace the Flat Package IC----------------63
12.2. How to Replace the Shield Case ---------------------65
12.3. How to Replace the LLP (Leadless Leadframe
Package) IC------------------------------------------------67
12.4. Terminal Guide of the ICs, Transistors and
Diodes -------------------------------------------------------69
13 Schematic Diagram ---------------------------------------------71
13.1. For Schematic Diagram---------------------------------71
13.2. Schematic Diagram (Base Unit_Main) --------------72
13.3. Schematic Diagram (Base Unit_RF Part) ----------74
13.4. Schematic Diagram (Base Unit_Operation) -------75
13.5. Schematic Diagram (Cordless Handset) -----------76
13.6. Schematic Diagram (Charger Unit)------------------ 78
14 Printed Circuit Board ------------------------------------------ 79
14.1. Circuit Board (Base Unit_Main) ---------------------- 79
14.2. Circuit Board (Base Unit_Operation)---------------- 81
14.3. Circuit Board (Cordless Handset)-------------------- 83
14.4. Circuit Board (Charger Unit)--------------------------- 85
15 Exploded View and Replacement Parts List ----------- 86
15.1. Cabinet and Electrical Parts (Base Unit) ----------- 86
15.2. Cabinet and Electrical Parts (Cordless
Handset)---------------------------------------------------- 87
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 88
15.4. Accessories and Packing Materials ----------------- 89
15.5. Replacement Parts List--------------------------------- 91
4
KX-TG6461RUT/KX-TGA641RUT
1 Safety Precautions
1.1.
For Service Technicians
• Repair service shall be provided in accordance with repair technology information such as service manual so as to
prevent fires, injury or electric shock, which can be caused by improper repair work.
1. When repair services are provided, neither the products nor their parts or members shall be remodeled. 
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced. 
3. FASTON terminals shall be plugged straight in and unplugged straight out. 
• ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
2 Warning
2.1.
Battery Caution
1. Danger of explosion if battery is incorrectly replaced.
2. Replace only with the same or equivalent type recommended by the manufacturer.
3. Dispose of used batteries according to the manufacturer's Instructions.
2.2.
About Lead Free Solder (Pbf: Pb free)
Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that con-
tains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),
Silver (Ag), and Copper (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder.
Caution
• PbF solder has a melting point that is 50 
°F ~ 70 ° F (30 °C ~ 40 °C) higher than Pb solder. Please use a soldering iron with tem-
perature control and adjust it to 700 
°F ± 20 ° F (370 °C ± 10 °C).
• Exercise care while using higher temperature soldering irons.: 
Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.
• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100 
°F (600 °C).
• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the
opposite side (See the figure below).

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Here you can view online and download Panasonic KX-TG6461RUT / KX-TGA641RUT Service Manual in PDF. KX-TG6461RUT / KX-TGA641RUT service manual will guide through the process and help you recover, restore, fix, disassemble and repair Panasonic KX-TG6461RUT / KX-TGA641RUT Telephone. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.