KX-TGH210RUB, KX-TGH210RUW, KX-TGH212RUB, KX-TGH220RUB, KX-TGH220RUW, KX-TGH222RUB, KX-TGHA20RUB, KX-TGHA20RUW - Panasonic Telephone Service Manual (repair manual)

kx-tgh210rub, kx-tgh210ruw, kx-tgh212rub, kx-tgh220rub, kx-tgh220ruw, kx-tgh222rub, kx-tgha20rub, kx-tgha20ruw service manual
Model
KX-TGH210RUB KX-TGH210RUW KX-TGH212RUB KX-TGH220RUB KX-TGH220RUW KX-TGH222RUB KX-TGHA20RUB KX-TGHA20RUW
Pages
91
Size
6.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tgh210rub-kx-tgh210ruw-kx-tgh212rub-kx-tgh220ru.pdf
Date

Read Panasonic KX-TGH210RUB / KX-TGH210RUW / KX-TGH212RUB / KX-TGH220RUB / KX-TGH220RUW / KX-TGH222RUB / KX-TGHA20RUB / KX-TGHA20RUW Service Manual online

ORDER NO. KM41404815CE
Telephone Equipment
Model No.
KX-TGH210RUB 
KX-TGH210RUW 
KX-TGH212RUB  
KX-TGH220RUB 
KX-TGH220RUW 
KX-TGH222RUB  
KX-TGHA20RUB 
KX-TGHA20RUW
Digital Cordless Answering System
B: Black Version 
W: White Version
(for Russia)
(for Belarus)
Model No
Base Unit
Handset
Charger Unit Expandable
KX-TGH210
KX-TGH212
KX-TGH220
KX-TGH222
KX-TGHA20*
1 (TGH210)
1(TGH210)
1(TGH220)
1(TGH220)
1(TGHA20)
2(TGHA20)
1(TGHA20)
2(TGHA20)
1(TGHA20)
Up to 6
Up to 6
Up to 6
Up to 6
Configuration for each model
*KX-TGHA20 is also an optional accessory, which contains a 
handset and a charger.
1
1
1
(Charger Unit)
KX-TGHA21/20
(Handset)
KX-TGH210
(Base Unit)
KX-TGH220
(Base Unit)
2
KX-TGH210RUB/KX-TGH210RUW/KX-TGH212RUB/KX-TGH220RUB/KX-TGH220RUW/KX-TGH222RUB/KX-TGHA20RUB/KX-TGHA20RUW
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general 
public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting 
to service a product. Products powered by electricity should be serviced or repaired only by experienced professional 
technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone 
else could result in serious injury or death.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by 
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that 
these critical parts should be replaced with manufacturer's specified parts to prevent shock, fire or other hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT INFORMATION ABOUT LEAD FREE, (PbF), SOLDERING
If lead free solder was used in the manufacture of this product, the printed circuit boards will be marked PbF.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
When this mark does appear, please read and follow the special instructions described in this manual on the 
use of PbF and how it might be permissible to use Pb solder during service and repair work.
L When you note the serial number, write down all 11 digits. The serial number may be found on the bottom of the unit. 
L The illustrations in this Service Manual may vary slightly from the actual product.
3
KX-TGH210RUB/KX-TGH210RUW/KX-TGH212RUB/KX-TGH220RUB/KX-TGH220RUW/KX-TGH222RUB/KX-TGHA20RUB/KX-TGHA20RUW
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. Block Diagram (Base Unit) ------------------------------ 8
4.2. Circuit Operation (Base Unit) --------------------------- 9
4.2.1. Outline --------------------------------------------------- 9
4.3. Block Diagram (Base Unit RF Part)------------------10
4.4. Circuit Operation (Base Unit) -------------------------- 11
4.4.1. BBIC (Base Band IC: IC501) --------------------- 11
4.4.2. Flash Memory (IC601)(for KX-TGH220
only) ----------------------------------------------------- 11
4.4.3. EEPROM (IC611) ------------------------------------ 11
4.4.4. Power Supply Circuit--------------------------------12
4.4.5. Telephone Line Interface---------------------------13
4.4.6. Transmitter/Receiver--------------------------------13
4.5. Block Diagram (Handset)-------------------------------14
4.6. Circuit Operation (Handset)----------------------------15
4.6.1. Outline --------------------------------------------------15
4.6.2. Power Supply Circuit/Reset Circuit--------------15
4.6.3. Charge Circuit ----------------------------------------15
4.6.4. Battery Low/Power Down Detector--------------15
4.6.5. Speakerphone ----------------------------------------15
4.7. Behavior of Electric Power Failure -------------------16
4.8. Signal Route -----------------------------------------------17
5 Location of Controls and Components ------------------19
6 Installation Instructions ---------------------------------------19
7 Operating Instructions-----------------------------------------19
7.1. For Service Hint-------------------------------------------19
8 Service Mode -----------------------------------------------------20
8.1. Engineering Mode ----------------------------------------20
8.1.1. Base Unit ----------------------------------------------20
8.1.2. Handset ------------------------------------------------22
8.2. EEPROM LAYOUT (Handset)-------------------------24
8.2.1. Scope ---------------------------------------------------24
8.2.2. Introduction --------------------------------------------24
8.2.3. EEPROM contents ----------------------------------24
8.3. How to Clear User Setting------------------------------25
8.3.1. Resetting both base unit and handset----------25
8.3.2. Resetting only handset -----------------------------25
9 Troubleshooting Guide ----------------------------------------26
9.1. Troubleshooting Flowchart -----------------------------26
9.1.1. Check Power------------------------------------------27
9.1.2. Check Battery Charge ------------------------------28
9.1.3. Check Link---------------------------------------------29
9.1.4. Check the RF part -----------------------------------32
9.1.5. Check Handset Transmission --------------------35
9.1.6. Check Handset Reception-------------------------35
9.1.7. Check Caller ID --------------------------------------35
9.1.8. Bell Reception ----------------------------------------36
9.1.9. Check TAM Operation (for KX-TGH220
only) -----------------------------------------------------36
9.1.10. Power failure mode----------------------------------37
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit)---------------------------------------------- 38
9.2.1. Check Point (Base Unit) --------------------------- 38
9.3. Troubleshooting by Symptom (Handset) ----------- 40
9.3.1. Check Point (Handset) ----------------------------- 40
10 Disassembly and Assembly Instructions--------------- 43
10.1. Disassembly Instructions------------------------------- 43
10.1.1. Base Unit ---------------------------------------------- 43
10.1.2. Handset ------------------------------------------------ 46
10.1.3. Charger Unit ------------------------------------------ 47
10.2. How to Replace the Handset LCD------------------- 48
11 Measurements and Adjustments -------------------------- 49
11.1. Equipment Required ------------------------------------ 49
11.2. The Setting Method of JIG (Base Unit) ------------- 49
11.2.1. Connections ------------------------------------------ 49
11.2.2. How to install Batch file into P.C. ---------------- 50
11.2.3. Commands-------------------------------------------- 50
11.3. Adjustment Standard (Base Unit) -------------------- 51
11.3.1. Bottom View ------------------------------------------ 51
11.4. The Setting Method of JIG (Handset)--------------- 52
11.4.1. Connections ------------------------------------------ 52
11.4.2. How to install Batch file into P.C. ---------------- 53
11.4.3. Commands-------------------------------------------- 53
11.5. Adjustment Standard (Handset) ---------------------- 54
11.5.1. Component View ------------------------------------ 54
11.6. Things to Do after Replacing IC or X'tal ------------ 55
11.6.1. How to download the data ------------------------ 55
11.7. RF Specification ------------------------------------------ 57
11.7.1. Base Unit ---------------------------------------------- 57
11.7.2. Handset ------------------------------------------------ 57
11.8. How to Check the Handset Speaker or
Receiver ---------------------------------------------------- 58
11.9. Frequency Table (MHz)--------------------------------- 58
12 Miscellaneous---------------------------------------------------- 59
12.1. How to Replace the Flat Package IC --------------- 59
12.1.1. Preparation-------------------------------------------- 59
12.1.2. How to Remove the IC ----------------------------- 59
12.1.3. How to Install the IC -------------------------------- 60
12.1.4. How to Remove a Solder Bridge ---------------- 60
12.2. How to Replace the Shield Case--------------------- 61
12.2.1. Preparation-------------------------------------------- 61
12.2.2. Caution------------------------------------------------- 61
12.2.3. How to Remove the Shield Case---------------- 61
12.2.4. How to Install the Shield Case ------------------- 62
12.3. Terminal Guide of the ICs, Transistors, Diodes
and Electrolytic Capacitors ---------------------------- 63
12.3.1. Base Unit ---------------------------------------------- 63
12.3.2. Handset ------------------------------------------------ 63
13 Schematic Diagram -------------------------------------------- 65
13.1. For Schematic Diagram -------------------------------- 65
13.1.1. Base Unit (Base Unit (Main)) --------------------- 65
13.1.2. Handset (Handset) ---------------------------------- 65
13.2. Base Unit (Main) ----------------------------------------- 66
13.2.1. KX-TGH210RU -------------------------------------- 66
13.2.2. TGH220RU ------------------------------------------- 68
13.3. Base Unit (Operation)----------------------------------- 70
13.4. Handset----------------------------------------------------- 72
14 Printed Circuit Board ------------------------------------------ 75
4
KX-TGH210RUB/KX-TGH210RUW/KX-TGH212RUB/KX-TGH220RUB/KX-TGH220RUW/KX-TGH222RUB/KX-TGHA20RUB/KX-TGHA20RUW
14.1. Base Unit (Main)------------------------------------------ 75
14.1.1. Component View ------------------------------------ 75
14.1.2. Bottom View ------------------------------------------ 76
14.2. Base Unit (Operation) ----------------------------------- 77
14.2.1. Component View  ----------------------------------- 77
14.3. Handset----------------------------------------------------- 79
14.3.1. Component View ------------------------------------ 79
14.3.2. Bottom View ------------------------------------------ 80
15 Exploded View and Replacement Parts List ----------- 81
15.1. Cabinet and Electrical Parts (Base Unit) ----------- 81
15.1.1. KX-TGH210------------------------------------------- 81
15.1.2. KX-TGH220------------------------------------------- 82
15.2. Cabinet and Electrical Parts (Handset) ------------- 83
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 84
15.4. Accessories------------------------------------------------ 85
15.5. Replacement Parts List --------------------------------- 86
15.5.1. Base Unit ---------------------------------------------- 86
15.5.2. Handset ------------------------------------------------ 89
15.5.3. Charger Unit ------------------------------------------ 90
15.5.4. Accessories and Packing Materials------------- 90
15.5.5. Screws ------------------------------------------------- 90
15.5.6. Fixtures and Tools----------------------------------- 90
Page of 91
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Here you can read online and download Panasonic KX-TGH210RUB / KX-TGH210RUW / KX-TGH212RUB / KX-TGH220RUB / KX-TGH220RUW / KX-TGH222RUB / KX-TGHA20RUB / KX-TGHA20RUW Service Manual in PDF. KX-TGH210RUB / KX-TGH210RUW / KX-TGH212RUB / KX-TGH220RUB / KX-TGH220RUW / KX-TGH222RUB / KX-TGHA20RUB / KX-TGHA20RUW service manual will guide through the process and help you recover, restore, fix, disassemble and repair Panasonic KX-TGH210RUB / KX-TGH210RUW / KX-TGH212RUB / KX-TGH220RUB / KX-TGH220RUW / KX-TGH222RUB / KX-TGHA20RUB / KX-TGHA20RUW 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.