KX-TG2511RUM, KX-TG2511RUN, KX-TG2511RUS, KX-TG2511RUT, KX-TG2512RUN, KX-TG2512RUS, KX-TG2521RUT, KX-TGA250RUM, KX-TGA250RUN, KX-TGA250RUS, KX-TGA250RUT — Panasonic Provideo Service Manual Supplement (repair manual)

Model
KX-TG2511RUM KX-TG2511RUN KX-TG2511RUS KX-TG2511RUT KX-TG2512RUN KX-TG2512RUS KX-TG2521RUT KX-TGA250RUM KX-TGA250RUN KX-TGA250RUS KX-TGA250RUT
Pages
83
Size
3.56 MB
Type
PDF
Document
Service Manual Supplement
Brand
Device
Provideo / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tg2511rum-kx-tg2511run-kx-tg2511rus-kx-tg2511ru.pdf
Date

View Panasonic KX-TG2511RUM / KX-TG2511RUN / KX-TG2511RUS / KX-TG2511RUT / KX-TG2512RUN / KX-TG2512RUS / KX-TG2521RUT / KX-TGA250RUM / KX-TGA250RUN / KX-TGA250RUS / KX-TGA250RUT Service Manual Supplement online

 ORDER NO. KM41311925SE
Telephone Equipment
Model No.
KX-TG2511RUM
KX-TG2511RUN
KX-TG2511RUS
KX-TG2511RUT
KX-TG2512RUN
KX-TG2512RUS
KX-TG2521RUT
KX-TGA250RUM
KX-TGA250RUN
KX-TGA250RUS
KX-TGA250RUT
Digital Cordless Answering System
M: Metic Grey Version
N: Platinum Silver Version
S: Silver Version
T: Titanium Black Version
(for Russia)
Please file and use this supplement manual together with the service manual for Model No.KX-
TG2511RUM/KX-TG2511RUN/KX-TG2511RUS/KX-TG2511RUT/KX-TG2512RUN/KX-TG2512RUS/KX-
TG2521RUT/KX-TGA250RUM/KX-TGA250RUN/KX-TGA250RUS/KX-TGA250RUT, Order No.KM41006115CE.
2
KX-TG2511RUM/KX-TG2511RUN//KX-TG2511RUS/KX-TG2511RUT/KX-TG2512RUN/KX-TG2512RUS/KX-TG2521RUT/KX-TGA250RUM/KX-TGA250RUN/KX-TGA250RUS/KX-TGA250RUT
TABLE OF CONTENTS
PAGE
PAGE
1 REPLACEMENT PARTS LIST ---------------------------------4
1.1. REFERENCE CHART ------------------------------------4
1.2. ORIGINAL AND NEW PARTS COMPARISON
LISTS----------------------------------------------------------4
2 Safety Precautions -----------------------------------------------5
2.1. For Service Technicians ----------------------------------5
3 Warning --------------------------------------------------------------5
3.1. Battery Caution ---------------------------------------------5
3.2. About Lead Free Solder (Pbf: Pb free) ---------------5
3.2.1. Suggested PbF Solder -------------------------------6
3.3. Discarding of P.C. Board ---------------------------------6
4 Specifications ------------------------------------------------------7
5 Technical Descriptions
------------------------------------------8
5.1. Block Diagram (Base Unit) ------------------------------8
5.2. Circuit Operation (Base Unit) ---------------------------9
5.2.1. Outline----------------------------------------------------9
5.3. Block Diagram (Base Unit RF Part) ----------------- 10
5.4. Circuit Operation (Base Unit) ------------------------- 11
5.4.1. BBIC (Base Band IC: IC501) --------------------- 11
5.4.2. Flash Memory (IC601) (for KX-TG2521
only)----------------------------------------------------- 11
5.4.3. EEPROM (IC611) ----------------------------------- 11
5.4.4. Telephone Line Interface -------------------------- 11
5.4.5. Power Supply Circuit ------------------------------- 12
5.4.6. Calling Line Identification (Caller ID) ----------- 13
5.5. Block Diagram (Handset) ------------------------------ 14
5.6. Circuit Operation (Handset) --------------------------- 15
5.6.1. Outline-------------------------------------------------- 15
5.6.2. Power Supply Circuit/Reset Circuit ------------- 15
5.6.3. Charge Circuit ---------------------------------------- 15
5.6.4. Battery Low/Power Down Detector ------------- 15
5.6.5. Speakerphone---------------------------------------- 15
5.7. Circuit Operation (Charger Unit) --------------------- 16
5.7.1. Power Supply Circuit ------------------------------- 16
5.8. Signal Route ---------------------------------------------- 17
6 Location of Controls and Components ----------------- 19
7 Installation Instructions 
-------------------------------------- 19
8 Operating Instructions
---------------------------------------- 19
8.1. For Service Hint ------------------------------------------ 19
9 Service Mode----------------------------------------------------- 20
9.1. Engineering Mode --------------------------------------- 20
9.1.1. Base Unit---------------------------------------------- 20
9.1.2. Handset ----------------------------------------------- 22
9.2. EEPROM LAYOUT (Handset)------------------------ 24
9.2.1. Scope -------------------------------------------------- 24
9.2.2. Introduction ------------------------------------------- 24
9.2.3. EEPROM contents --------------------------------- 24
9.3. Copying Phonebook Items when Repairing ------ 25
9.4. How to Clear User Setting----------------------------- 27
9.4.1. Resetting both base unit and handset --------- 27
9.4.2. Resetting only handset ---------------------------- 27
10 Troubleshooting Guide --------------------------------------- 28
10.1. Troubleshooting Flowchart ---------------------------- 28
10.1.1. Check Power ----------------------------------------- 29
10.1.2. Check Battery Charge ----------------------------- 30
10.1.3. Check Link -------------------------------------------- 31
10.1.4. Check the RF part ---------------------------------- 34
10.1.5. Check Handset Transmission-------------------- 37
10.1.6. Check Handset Reception------------------------ 37
10.1.7. Check Caller ID-------------------------------------- 37
10.1.8. Bell Reception --------------------------------------- 38
10.1.9. Check TAM Operation (for KX-TG2521
only) ---------------------------------------------------- 38
10.2. Troubleshooting by Symptom (Base Unit and
Charger Unit) --------------------------------------------- 39
10.2.1. Check Point (Base Unit)--------------------------- 39
10.2.2. Check Point (Charger Unit)----------------------- 40
10.3. Troubleshooting by Symptom (Handset) ---------- 41
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.
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KX-TG2511RUM/KX-TG2511RUN//KX-TG2511RUS/KX-TG2511RUT/KX-TG2512RUN/KX-TG2512RUS/KX-TG2521RUT/KX-TGA250RUM/KX-TGA250RUN/KX-TGA250RUS/KX-TGA250RUT
10.3.1. Check Point (Handset) -----------------------------41
10.3.2. Troubleshooting for Speakerphone--------------44
11 Disassembly and Assembly Instructions ---------------45
11.1. Disassembly Instructions -------------------------------45
11.1.1. Base Unit ----------------------------------------------45
11.1.2. Handset ------------------------------------------------46
11.1.3. Charger Unit ------------------------------------------47
11.2. How to Replace the Handset LCD -------------------48
12 Measurements and Adjustments---------------------------49
12.1. Equipment Required -------------------------------------49
12.2. The Setting Method of JIG (Base Unit) -------------49
12.2.1. Connections -------------------------------------------49
12.2.2. How to install Batch file into P.C.-----------------50
12.2.3. Commands --------------------------------------------50
12.3. Adjustment Standard (Base Unit)---------------------51
12.3.1. Bottom View-------------------------------------------51
12.4. Adjustment Standard (Charger Unit)-----------------52
12.4.1. Bottom View-------------------------------------------52
12.5. The Setting Method of JIG (Handset) ---------------53
12.5.1. Connections -------------------------------------------53
12.5.2. How to install Batch file into P.C.-----------------54
12.5.3. Commands --------------------------------------------54
12.6. Adjustment Standard (Handset) ----------------------55
12.6.1. Component View-------------------------------------55
12.7. Things to Do after Replacing IC or X'tal ------------56
12.7.1. How to download the data -------------------------56
12.8. RF Specification-------------------------------------------58
12.8.1. Base Unit ----------------------------------------------58
12.8.2. Handset ------------------------------------------------58
12.9. How to Check the Handset Speaker or
Receiver ----------------------------------------------------59
12.10. Frequency Table (MHz) ---------------------------------59
13 Miscellaneous ----------------------------------------------------60
13.1. How to Replace the Flat Package IC ----------------60
13.1.1. Preparation --------------------------------------------60
13.1.2. How to Remove the IC -----------------------------60
13.1.3. How to Install the IC---------------------------------61
13.1.4. How to Remove a Solder Bridge-----------------61
13.2. How to Replace the Shield Case ---------------------62
13.2.1. Preparation --------------------------------------------62
13.2.2. Caution -------------------------------------------------62
13.2.3. How to Remove the Shield Case ----------------62
13.2.4. How to Install the Shield Case -------------------63
14 Schematic Diagram ---------------------------------------------64
14.1. For Schematic Diagram---------------------------------64
14.1.1. Base Unit (Base Unit (Main)) ---------------------64
14.1.2. Handset (Handset) ----------------------------------64
14.1.3. Charger Unit (Charger Unit)-----------------------64
14.2. Base Unit (Main) ------------------------------------------65
14.3. Handset -----------------------------------------------------67
14.4. Charger Unit -----------------------------------------------69
15 Printed Circuit Board-------------------------------------------70
15.1. Base Unit (Main) ------------------------------------------70
15.1.1. Component View-------------------------------------70
15.1.2. Bottom View-------------------------------------------71
15.2. Handset -----------------------------------------------------72
15.2.1. Component View-------------------------------------72
15.2.2. Bottom View-------------------------------------------73
15.3. Charger Unit -----------------------------------------------74
15.3.1. Component View-------------------------------------74
15.3.2. Bottom View-------------------------------------------74
16 Exploded View and Replacement Parts List ----------- 75
16.1. Cabinet and Electrical Parts (Base Unit) ----------- 75
16.2. Cabinet and Electrical Parts (Handset)------------- 76
16.3. Cabinet and Electrical Parts (Charger Unit) ------- 77
16.4. Accessories------------------------------------------------ 78
16.5. Replacement Part List ---------------------------------- 79
16.5.1.
 Base Unit ---------------------------------------------- 79 
16.5.2.
  Handset------------------------------------------------ 81 
16.5.3.
 Charger Unit ------------------------------------------ 83 
16.5.4.
  Accessories------------------------------------------- 83 
16.5.5.
 Screws ------------------------------------------------- 83 
16.5.6.
 Fixtures and Tools  ---------------------------------- 83
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KX-TG2511RUM/KX-TG2511RUN//KX-TG2511RUS/KX-TG2511RUT/KX-TG2512RUN/KX-TG2512RUS/KX-TG2521RUT/KX-TGA250RUM/KX-TGA250RUN/KX-TGA250RUS/KX-TGA250RUT
1 REPLACEMENT PARTS LIST
1.1.
REFERENCE CHART
1.2.
ORIGINAL AND NEW PARTS COMPARISON LISTS
Change of the Suffix Code
Serial No.Label tells you the suffix code as follows.
Reason for Change
*The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS 
COMPARISON LISTS.
1. Improve performance
2. Change of material or dimension
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other
Suffix Code
Reasons of change
C to D
To change Main board in base unit and handset board.
5
KX-TG2511RUM/KX-TG2511RUN//KX-TG2511RUS/KX-TG2511RUT/KX-TG2512RUN/KX-TG2512RUS/KX-TG2521RUT/KX-TGA250RUM/KX-TGA250RUN/KX-TGA250RUS/KX-TGA250RUT
2 Safety Precautions
2.1.
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.
3 Warning
3.1.
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 manufacture’s Instructions.
3.2.
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
contains 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 
temperature 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).
Component
Component 
pin
solder
Remove all of the
excess solder
(Slice View)

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Here you can view online or download Panasonic KX-TG2511RUM / KX-TG2511RUN / KX-TG2511RUS / KX-TG2511RUT / KX-TG2512RUN / KX-TG2512RUS / KX-TG2521RUT / KX-TGA250RUM / KX-TGA250RUN / KX-TGA250RUS / KX-TGA250RUT Service Manual Supplement in pdf. This Service Manual Supplement can help you recover, restore, fix, disassemble and repair Panasonic KX-TG2511RUM / KX-TG2511RUN / KX-TG2511RUS / KX-TG2511RUT / KX-TG2512RUN / KX-TG2512RUS / KX-TG2521RUT / KX-TGA250RUM / KX-TGA250RUN / KX-TGA250RUS / KX-TGA250RUT Provideo. Information contained in Panasonic KX-TG2511RUM / KX-TG2511RUN / KX-TG2511RUS / KX-TG2511RUT / KX-TG2512RUN / KX-TG2512RUS / KX-TG2521RUT / KX-TGA250RUM / KX-TGA250RUN / KX-TGA250RUS / KX-TGA250RUT service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).