Panasonic KX-A140RUC, KX-A140RUF, KX-TCD400RUF, KX-A140RUB, KX-TCD400RUC Service Manual

ORDER NO. KM40306103C3

Service Manual

[

lHlAFTi

Telephone Equipment

KX-TCD 400R UB
KX-TCD 400 RUC
KX-TCD 400RU F
KX-A 14 0R UB
KX-A 14 0R UC
KX-A 14 0R UF

Digital Cordless Phone

Black Version
Dark Blue Version
Light Purple Version

(for Russia)

SPECIFICATION

Standard: DECT= (Digital Enhanced Cordless

Telecommunications)

Number of channels: 120 Duplex Channels
Frequency range: 1.88 GHz to 1.9 GHz
Duplex procedure:

TDMA (Time Division Multiple Access)
Channel spacing: 1728 kHz
Bit rate spacing:

1152 kbit/s

Modulation:

GFSK (Gaussian Frequency

Shift Keying)
RF Transmission
Power:

approx. 250 mW
Voice coding:

ADPCM 32 kbit/s
Operation range:

Up to 300 m outdoors,

Up to 50 m indoors
Analog telephone
connection: Telephone Line

Power source:

AC Adaptor (220 V - 240 V AC, 50 Hz)

Power consumption,
Base Unit:

Battery life, Handset
(if batteries are
fully charged):

Operating conditions:
Dimensions, Base Unit

(D x W x L):
Dimensions, Handset

(D x W x L):
Weight, Base Unit:

Weight, Handset:
Connection jack:

Standby: 2.5 W
Maximum: 6.8W

Stand-by: Up to 120 hours (Ni-MH)
Talk: Up to 10 hours (Ni-MH)

5 - 40 °C, 20 - 80 % relative air humidity (dry)

58 mm x 128 mm x 105 mm

143 mm x 48 mm x 32 mm

about 170 g
about 120 g
RJ11 to RJ11 plug

Specifications are subject to change.
The illustrations used in this manual may differ slightly from the original device.

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.

Panasonic

© 2003 Panasonic Communications Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

A 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.

When you note the serial number, write down all 11 digits. The serial number may be found on the bottom of the unit.

CONTENTS

Page

1 ABOUT LEAD FREE SOLDER (PbF: Pb free)

...........

...............

4

1.1. Suggested PbF Solder

............................................................

4

1.2. How to recognize that Pb Free solder is used.....................5

2 FOR SERVICE TECHNICIANS...................................................7

3 CAUTION...................................................................................7

4 BATTERY..................................................................................8

4.1. Battery Installation....................................................................8

4.2. Battery Charge..........................................................................8

4.3. Battery Life................................................................................9

4.4. Replacing the Batteries —

......-.........................-...................

9

5 LOCATION OF CONTROLS.....................................................10

5.1. Base Unit.................................................................................10

5.2. Handset....................................................................................10

6 SETTINGS................................................................................11

6.1. Connection...............................................................................11

6.2. Symbols Used in This Service Manual

................................

11

6.3. PIN Code.................................................................................12

6.4. Reset........................................................................................14

6.5. Key Lock..................................................................................15

6.6. Recall Feature.........................................................................15

6.7. Dialling Pause for PBX line/long distance service users ■ 15

6.8. Call BAR On/Off (Call Prohibition On/Off)

..........................

16

6.9. Selecting the Display Language

...........................................16

6.10. Select Dialling Mode (Tone/Pulse).......................................16

6.11. Select Flash Timing................................................................17

6.12. Automatic Route Selection....................................................17

6.13. Summary of Programmable Functions................................19

7 DISPLAY..................................................................................19

7.1. Handset Display......................................................................19

7.2. Before Requesting Help (Troubleshooting)

........................

20

8 OPERATIONS..........................................................................21

8.1. Power On/Off...........................................................................21

8.2. Making a Call...........................................................................21

8.3. Answering a Call.....................................................................21

8.4. Setting the Clock/Date

...........................................................

21

8.5. Phonebook

.............................................................................. 22

9 DISASSEMBLY INSTRUCTIONS.............................................25

9.1. Base Unit.................................................................................25

9.2. Handset...................................................................................26

10 ASSEMBLY INSTRUCTIONS

........................................

27

10.1. Warning When Constructing the Base Unit.........................27

Page

11 TROUBLESHOOTING GUIDE

.......

.........................................28

11.1. Check Power..........................................................................29

11.2. Check Battery Charge.......................................................... 30

11.3. Check Link..............................................................................31

11.4. Check Handset Transmission..............................................33

11.5. Check Handset Reception................................................... 33

11.6. Bell Reception.........................................................................34

12 CHECK PROCEDURE (BASE UNIT)........................................35

12.1. Preparation..............................................................................35

12.2. PC Setting............................................................................... 35

13 CHECK PROCEDURE (HANDSET)..........................................36

13.1. Preparation..............................................................................36

13.2. PC Setting............................................................................... 36

14 ADJUSTMENTS (BASE UNIT).................................................37

14.1. Adjustment...............................................................................37

14.2. Adjustment Standard (Base Unit).........................................40

15 ADJUSTMENTS (HANDSET)...................................................42

15.1. Adjustment...............................................................................42

15.2. Adjustment Standard (Handset)...........................................45

16 RF SPECIFICATION.................................................................46

16.1. Base Unit.................................................................................46

16.2. Handset....................................................................................46

17 HOW TO CHECK THE HANDSET SPEAKER

..........................

46

18 FREQUENCY TABLE (MHz)

....................................................

47

19 BLOCK DIAGRAM (BASE UNIT)

.............................................

48

20 CIRCUIT OPERATION (BASE UNIT)........................................49

20.1. Outline......................................................................................49

20.2. Power Supply Circuit..............................................................50

20.3. Telephone Line Interface

.......................................................51

20.4. Transmitter/Receiver...............................................................51

20.5. Pulse Dialing............................................................................51

21 BLOCK DIAGRAM (HANDSET)................................................52

22 CIRCUIT OPERATION (HANDSET)..........................................53

22.1. Outline......................................................................................53

22.2. Power Supply Circuit/Reset Circuit......................................53

22.3. Charge Circuit.........................................................................53

22.4. Battery Low/Power Down Detector......................................53

23 SIGNAL ROUTE.......................................................................54

24 CPU DATA (BASE UNIT).........................................................55

24.1. IC2 (BBIC)................................................................................55

25 CPU DATA (HANDSET)........................................................... 57

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KX-TCD400RUВ / KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF

25.1. IC1 (BBIC)...............................................................................57

26 EEPROM LAYOUT (BASE UNIT).............................................59

26.1. Scope.......................................................................................59

26.2. Introduction.............................................................................59

26.3. EEPROM Layout....................................................................59

27 EEPROM LAYOUT (HANDSET)

...............................................61

27.1. Scope.......................................................................................61

27.2. Introduction..............................................................................61

27.3. EEPROM contents.................................................................61

28 HOW TO REPLACE FLAT PACKAGE IC

................................

64

28.1. Preparation

............................................................................. 64

28.2. Procedure................................................................................64

28.3. Modification Procedure of Bridge

........................................

64

29 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)

................................................................................................65

30 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) 66

31 ACCESSORIES AND PACKING MATERIALS..........................67

32 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES

68

32.1. Base Unit

................................................................................. 68

32.2. Handset....................................................................................68

33 REPLACEMENT PARTS LIST..................................................69

33.1. Base Unit................................................................................. 69

33.2. Handset....................................................................................70

33.3. Accessories and Packing Materials......................................71

33.4. Fixtures and Tools...................................................................71

33.5. Memo........................................................................................72

34 SCHEMATIC DIAGRAM (BASE UNIT)......................................73

35 SCHEMATIC DIAGRAM (HANDSET)........................................75

36 CIRCUIT BOARD (BASE UNIT)................................................77

36.1. Component View.....................................................................77

36.2. Flow Solder Side View...........................................................78

37 CIRCUIT BOARD (HANDSET)..................................................79

37.1. Component View.....................................................................79

37.2. Flow Solder Side View...........................................................80

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUВ I KX-A140RUC I KX-A140RUF

1 ABOUT LE AD FREE SOLDER (PbF : P b 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 although, with some precautions, standard Pb solder can also be used.

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). In case of using high temperature soldering iron, please
be careful not to heat too long.

• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100°F (600°C).

• If you must use Pb solder on a PCB manufactured using PbF solder, remove as much of the original PbF solder as possible
and be sure that any remaining is melted prior to applying the Pb solder.

• 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).

1.1. Suggested PbF Solder

There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper
(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufac
turer’s specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.

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|kX-TCD400RUB I KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF

1.2.

1.2.1.

Note:

How to recognize that Pb Free solder is used

Base Unit PCB

Marked

____

П

(Component View)

Marked

(Flow Solder Side View)

The locations of the “PbF“ mark are subject to change without notice.

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|kX-TCD400RUB I KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF

1.2.2. Handset PC B

Marked

Marked

(Flow Solder Side View)

Note:

The locations of the “PbF“ mark are subject to change without notice.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

2 FOR SERVICE TECHNICIANS

ICs and LSIs are vulnerable to static electricity.

When repairing, the following precautions will help prevent recurring malfunctions.

1. Cover the plastic parts boxes with aluminum foil.

2. Ground the soldering irons.

3. Use a conductive mat on the worktable.

4. Do not touch IC or LSI pins with bare fingers.

3 CAU TIO N

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommendenced by the
manufacturer.

Dispose of used batteries according to the manufacture’s Instructions.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

4 BATTERY

4.1. Battery Installation

Please ensure the batteries are inserted as shown. © part should be inserted first.
Close the cover as indicated by the arrow.

• When you replace the batteries, © part should be removed first.

4.2. Battery Charge

At the time of shipment, the batteries are not charged. To charge, place the handset on the base unit.
Please charge the batteries for about 7 hours before initial use. During charging, the battery icon is as shown below.

The handset which power is off will be turned on automatically when it is placed on the base unit.
In normal use, the handset and the base unit should be powered on at all times.
Note for Service:
The battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully

charged.
In that case, by recharging the battery as mentioned above, you will get a correct indication of the battery strength.

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KX-TCD400RUB / KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF

4.3. Battery Life

• Battery life is dependent on use and conditions but in general when using fully charged Ni-MH batteries (700 mAh):
Talk time: 10hrs approx.
Standby time: 120hrs approx.

• When using Ni-Cd batteries (250 mAh):
Talk time: 4hrs approx.
Standby time: 40hrs approx.
(Times indicated are for peak performance)

• The batteries reach peak performance after several full charge/discharge cycles.

• The batteries cannot be overcharged unless they are repeatedly removed and replaced.

• If battery life is shortened then please check that battery and charge terminals are clean.

• For maximum battery life, it is recommended that the handset is not recharged until battery icon flashes ^ г .

4.4. Replacing the Batteries

If the H ■: icon flashes after a few telephone calls even when the handset batteries have been fully charged, 2 batteries must

be replaced.
Charge new batteries fo r approximately 7 hours before initial use.
(The telephone line cord must not be connected to the telephone socket at this time).
When replacing the batteries, ensure that the correct battery type is selected.

• To exit the operation, press (f) any time.

•When Ni-Cd batteies are fitted with the "battery type" setting in "ni-mh", i il icon will disappear and stop charging
even if the handset is on the cradle.

• Do not use non-rechargeable batteries. If non-rechargeable batteries are fitted and start charging, it may cause the leakage
of the battery electrolyte.

Please use only Panasonic P03P(Ni-MH) or P03H(Ni-Cd) batteries.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUВ I KX-A140RUC I KX-A140RUF

5

5.1.

5.2.

LOCA TIO N OF CONTROLS

Base Unit

Handset

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

6 SETTINGS

6.1. Connection

Plug in the AC adaptor and the telephone line cord in order 1, 2, 3, 4.

Fasten the AC adaptor
cord to prevent it from
being disconnected.

The AC adaptor must remain connected at all times (It is normal for the adaptor to feel warm during use).

• Never install telephone wiring during a lightning storm.

6.2. Symbols Used in This Service Manual

Symbol Meaning

©

To search the desired item, press UP or DOWN.

G

To select the desired item, press RIGHT.

OO

To search and then to select the desired item, press UP or DOWN then
RIGHT.

©

To move the cursor to the right or to the left, press RIGHT or LEFT.

♦

To go to the next step.

ii П

The words in " " indicate the words in display.

11

6.3. PIN Code

6.3.1. B ase Unit

|kX-TCD400RUB / KX-TCD400RUC / KX-TGD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF|

1 CD 2

Press Search/Select

MENU. "SETTING BS".

ф "INPUT CODE"

3 C §) 4 * Cu rrent 4-d igit Base U nit PIN

5 N ew 4 -dig it Base U nit PIN 6 New 4-dig it Base U nit PIN again to ve rify

Ch anging Base U nit PIN
The factory preset is 0000. Once you have programmed the base unit PIN, you cannot

confirm it. We recommend you write down the base unit PIN. If you forget it,
please consult your nearest Panasonic Service Centre.

• To exit the operation, press <§ any time.

For Service Hint:
* : If the current 4-digit PIN is forgotten, press Э Е © ® © and you will be able to enter new PIN.

6.3.2. Handset

1

d D 2

©G з ©G

Press MENU.

Search/Select Search/Select

"SETTING HS". "OTHER OPT".

4

©G

Search/Select

5 C urrent 4 -digit Handset PIN

"HSPIN CHANGE"

6

New 4 -dig it Handset PIN 7 New 4-digit Handse t PIN again to ve rify

Ch anging H andset PIN
The factory preset is 0000. Once you have programmed the handset PIN, you cannot

confirm it. We recommend you write down the handset PIN. If you forget it,
please consult your nearest Panasonic Service Centre.

• To exit the operation, press <$ any time.

For Service Hint:
* : If the current 4-digit PIN is forgotten, press ® d)© ® © and you will be able to enter new PIN.

12

|kX-TCD400RUB I KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF

6.3.3. Reset Base Unit PIN to Default (0000) -When There is NO Handset Registered-

6.3.3.1. Symptom

There is no way to reset base PIN when there is no handset registered to the base.

6.3.3.2. Thinkable Situation

• Customer may ask to reset base PIN because they forget it.

• Customer may bring only a base unit for repair and there is no handset registered to the base (Need to register another handset
to the base to confirm if the unit works properly after repair).

• When original handset has broken and customer purchased a new one, if customer forget base PIN, customer cannot register
the new handset and may ask to reset the PIN.

6.3.3.3. Remedy

<Preparation>

Refer to JIGs and PC (P.35).

<Connection>

1. Solder a pin or lead wire to GND, SDA, and SCLK on base PCB.

2. Plug in AC adaptor to the base.

3. Turn on the power to the JIG (9V).

4. Then connect the cable to each pins using clip.

As for the connection between JIG and PCB, see below photos.

Clip

<PC setting and how to reset base PIN to default (0000)>

1. Refer to PC Setting (P.35).

2. Next, execute <initbspin.bat> by typing "initbspin". The PC display will be shown as below.

Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

C:¥ >cd dect

*

C: ¥ DECT>SET RTX_COM = 1

C: ¥ DECT>DOSKEY

C:¥ DECT>initbspin
C:¥ DECT>call wreeprom.bat 00 25 00

C:¥ DECT>call wreeprom.bat 00 26 00

C: ¥ DECT>_

U

|'a|

_______________________________________j 2j

3. After that, turn off DC power supply (9V) to the jig, unplug AC adaptor, and remove pins on PCB.
Then close the cabinet. The base pin returns to the default (0000) and you can register a handset to the base using the base

PIN (0000).

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|kX-TCD400RUB / KX-TCD400RUC / KX-TGD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF|

6.4. Reset

6.4.1. Base Unit

• To exit the operation, press <§ any time.

• *1: The factory preset is 0000.

Base Unit Initial Settings

Function Initial Setting Remarks (selectable options)

Flash Timing 700 msec All Handsets/Specific Handset No.
Pause Timing 3 seconds 3 seconds/5 seconds

4-Digit Base Unit PIN 0000

-

Dialling Mode Pulse Tone/Pulse
ARS Setting OFF ON/OFF
Carrier Code All Clear

-

Area Code All Clear

-

Relation of Area Code All Area Code to Carrier Code 1 1 to 5

6.4.2. Handset

You can reset all of the handset settings to their initial settings.

1 (1 ) 2

© G

3 ^3^3 ^ 4 -dig it Handset PIN*1

Press MENU.

Search/Select

Search/Select

"SETTING HS" . "RESET HS".

5 © G

Search/Select

"YES" ОГ "NO".

To exit the operation, press <§ any time.
*1: The factory preset is 0000.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

Handset Initial Settings

Function Initial Setting Remarks (selectable options)

Time Alarm Mode OFF OFF/ON
Alarm Time Clear OFF/Once/Daily

Handset Ringer Volume 6

-
Handset External Ringer Pattern 1 20 patterns
Handset Alarm Tone Pattern 1 20 patterns
Key Tone ON ON/OFF
Range Warning Alarm OFF OFF/ON
Battery Low Alarm ON ON/OFF

Talk Mode Display Length of the Call Talk Time/Phone No.

Display Language English 10 languages
Call BAR OFF OFF/ON
Direct Call Mode OFF OFF/ON
Direct Call Number Clear Up to 24 digits

4-Digit Handset PIN 0000

-

Auto Talk OFF OFF/ON

Redial Memory All Clear

-
Handset Receiver Volume Medium Low/Medium/High

6.5. Key Lock

You can lock the handset dialling buttons. Only incoming calls are accepted while the key lock is on. The key lock is cancelled
if the handset is turned off.

When the key lock is on, emergency calls cannot be made until key lock is cancelled.

Key Lock On Key Lock Off

• II is displayed (Refer to Handset Display (P.19)) and all dialling buttons are locked.

6.6. Recall Feature

RECALL is used to access special telephone services. Contact your Network provider for details. If your unit is connected to
a PBX, pressing RECALL allows you to access some features of your host PBX such as transferring an extension call.

6.7. Dialling Pause for PBX line/long distance service users

A dialling pause is used when a pause in the dialling of the phone number is necessary using a PBX or accessing a long
distance service.

For example, when 9 (line access number) is dialled followed by a pause to access an outside line through a PBX:

1 C D 2 (C * ) 3 Phone Number 4 ( ^ )

Press REDIAL.*1 Press TALK.

• Entering a pause prevents misdialling when you redial or dial a stored number.

• Pressing REDIAL once creates one pause. To extend the pause requirement time, press REDIAL accordingly.

*1 P is displayed (Refer to Handset Display (P. 19)) on the LCD.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

6.8. Call BAR On/Off (Call Prohibition On/Off)

You cannot make any dialling if call BAR is on.

To exit the operation, press <§) any time.
*1: The factory preset is 0000.
*2: If

"O N " is selected, -]•• is displayed (Refer to Handset Display (P.19)).

6.9. Selecting the Display Language

• To exit the operation, press <§ any time.

• *1 You can select one of 10 languages. If you set a language you cannot read, reset the handset to its initial settings.

Press MENU ^ DOWN ^ RIGHT ^ UP ^ RIGHT ^ 4-digit Handset PIN ^ UP ^ OK
All handset setting will be reset to their initial settings, however, the Phonebook data will be saved.

6.10. Select Dialling Mode (Tone/Pulse)

You can change the dialling mode to tone or pulse depending upon your network service. If you have a touch tone service,
select tone. If you have rotary or pulse service, select pulse.

У С Щ ) 2 С ж З С З ^ "INPUT CODE" 3 Q )

Press Search/Select

MENU. "SETTING BS".

Г С D |Tone|

4 4-digit Base Unit PIN*1 5 C D 6

OR 7 ( Щ )

Pulse Press OK.

• To exit the operation, press (§ any time.

• *1: The factory preset is 0000.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

6.11. Select Flash Timing

You can change the duration of the flash timing depending on the requirements of your network provider or PBX.

Press
MENU.

2 ^ "INPUT CODE" 3 CD

Search/Select

"SETTING BS".

4 4'di gi t 5 CD 6 CD 7

4 Base Unit PIN*1 '

8

Press OK

f CD 100msec ^

OR ________

Q ) l700msec|

OR

^ C D 200msec j

• To exit the operation, press <§) any time.

• *1: The factory preset is 0000.

For Service Hint: Refer to Flash Time setting (P.60)

6.12. Automatic Route Selection

Automatic Route Selection is a feature which selects the least expensive carrier (network) service available, when making long
distance calls. When area code(s) have been related to carrier codes, you will need only dial the area code, the lower costing
carrier (network) will automatically be dialled. Please contact your telephone company regarding the carrier telephone charges.

6.12.1. Storing the Carrier Code(s)

Firstly you must subscribe to a second carrier (network) service. You can subscribe to a limit of 5 carrier services. Then store
the code as follows:

• To exit the operation, press <§ any time.

• *1: The factory preset is 0000.

6.12.2. Storing the Area Code(s)

Store the area code(s) for which the chosen carrier (network) service charge rates are lower than the original carrier (network)
service. Up to 25 area codes can be stored.

■ To exit the operation, press <§) any time.

■ *1: The factory preset is 0000.

■ *2 If you need more area code storing, repeat the steps from 6.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

6.12.3. Relate the Area Code(s) to the Carrier Code(s)

After storing carrier code(s) and area code(s), you must relate the stored area code(s) to your chosen lower costing carrier
code. It is only necessary to relate area codes to carrier codes if more than one carrier code has been stored. If only one carrier
code has been stored, any area codes you store (up to 25) will automatically be dialled with that carrier code.

■ To exit the operation, press <§) any time.

■ *1: The factory preset is 0000.

■ *2 If you need more relating area codes to carrier codes, repeat the steps from 5.

6.12.4. Automatic Route Selection On/Off

1 (H D 2

+ "INPUT CODE" 3 О

Press MENU. Search/Select

"SETTING BS"

( Q ) on >

4 4 -d igit 5 C D 6

OR

7 (Щ )

Base Unit PIN*1

[ a > off J

Press OK.

■ To exit the operation, press <§) any time.

■ *1: The factory preset is 0000.

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KX-TCD400RUB / KX-TCD400RUC / KX-TCD400RUF / KX-A140RUB / KX-A140RUC / KX-A140RUF

6.13. Summary of Programmable Functions

You can select and execute the following functions by pressing direct command as follows without programming.
These operations need to be done with the Handset near the base unit.
Press dD . Press S or S until the arrow points to "Setting Base", then press 0 .

"input Command" is displayed.*1

<Direct command>

C D ф 4-digit Base Unit PIN ♦ C D Select Dialling Mode (Tone/Pulse)
C D ♦ 4-digit Base Unit PIN ф C D

Select Flash Timing

C D ♦ 4-digit Base Unit PIN ♦ C D Pause Tinning

C D

Changing Base Unit PIN

C D

Cancelling a Handset

C D Ф 4-digit Base Unit PIN ф C D

Automaic Route Selection

C D

Reset Base Unit Settings

C D

Setting the Clock

C D C D

Setting the Date

*1 If any key is not pressed over 60 seconds, the display will return to "Setting Base”.
*2 Refer to PIN Code (P. 12) for more details.

7 DISPLAY

7.1. Handset Display

Icon Displays Icon

Displays

T

Within range of a base unit

Call Bar ON

Out of range/No registration
No power on base unit

t

I

Direct Call ON

•»)

Using the handset

\l

l\

Key Lock ON

0 7 *

Making or answering calls

■ f

Ringer Volume OFF

00

Phonebook Mode

p

Dialling Pause

In Setting Mode

C L Battery strength is low

Battery strength is high

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

7.2. Before Requesting Help (Troubleshooting)

If you experience any problems with the normal use of your apparatus, you should unplug it from the telephone outlet and
connect a known working telephone in its place.

If the known working telephone still has problems, then please contact the customer service department of your Network
provider.

If it operates correctly, then the problem is likely to be a fault in your apparatus.
In this case, contact your supplier for advice. Your Network provider may charge you if they attend a service call that is not due

to apparatus supplied by them.

Turn the power OFF then ON (Handset) / Disconnect then connect the AC adaptor (Base Unit).

Problem Possible cause Solution

NO LCD display in handset. • Handset not turned on. • Turn on power.

->(Refer to Power On/Off.)

Handset will not turn on. • Batteries not inserted.

• Batteries not charged.

• Insert the 2 rechargeable batteries supplied .

• Place handset in base and connect AC adaptor to base
and AC outlet (full charge period 7 hrs).

Batteries charge icon not
counting up.

• Dirty charge contact.

• Base not powered up.

• Clean charge / battery contact and retry charge.

. Connect AC adaptor to base unit and AC outlet.

T icon flashes.

• Handset out of range of base.

• No power into base unit.

• Move handset closer to base.

• Connect AC adaptor to base unit and AC outlet.

Handset busy tone heard
when (%) is pressed.

• Handset out of range of base. • Move handset closer to base.

No dial tone. • Telephone line not

connected.

• Insert telephone cord to network.

• Turn power OFF then ON.

Cannot dial out. • Call BAR set.

• Particular dialled number is
restricted.

• Key lock mode ON.

• Turn feature off.

->(Refer to Call BAR On/Off.)

• Turn key lock OFF.

->(Refer to Key Lock.)

Handset will not ring.

• Ringer switched off. • Set ringer to one of 6 volume levels.

Last number redial does not
work.

• Number exceeded 24 digits. • Redial manually.

н ■: icon flashes. • Battery low. • Recharge batteries.

H ■: icon is disapeared. • Wrong battery type selected. • Set the correct battery type

Cross Reference:

Power On/Off (P.21)
Call BAR On/Off (Call Prohibition On/Off) (P.16)
Key Lock (P.15)

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

8 OPERATIONS

8.1. Power On/Off

Pow er on Pow er o ff

(£)

Press for more than

! (£)

Press for more than

1 second. *1 2 seconds. *2

*1 When (f) button is released, the display changes to the standby mode.
*2 The display goes blank.

8.2. Making a Call

Pre -dialling Pos t-dialling

1 Phone N um ber *1 2 & j » 2 Phone N um ber

Press TALK.

Press TALK.

*1 If you need correction, press CLEAR. Digit is cleared to the left, then enter numbers.

8.3. Answering a Call

• Each ringer will start ringing with lower volume then gradually increase the volume when receiving a call.

*1 You can also answer a call by pressing any dialling button, HOLD, # , or -X-.

8.4. Setting the Clock/Date

After a mains power failure the clock needs to be reset. Ensure that ^ icon is not flashing.

• To exit the operation, press <$ any time.

*1 For example, to set 7:15, enter 0715.
*2 For example, to set the 16th of February, 2003, enter 160203.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

8.5. Phonebook

You can store up to 20 caller information in the phonebook.

8.5.1. Storing a Caller Information

3 Phone Number 4

1 (D 2

Press MENU. Select Enter phone number. Press OK.

"ne w p h o n e " . (max. 24 characters) *1

Nam e

6

Enter name. Press OK.*2
(max. 9 characters)*1

• To exit the operation, press <§) any time.

*1 If you need correction, press RIGHT or LEFT to move cursor then clear a character by pressing CLEAR, and/or enter
characters. Characters are cleared or added to the left of the flashing character. To enter characters, see Character Selection
below.

*2 To continue storing another caller information, repeat the steps from 3.

Character Selection

Keys

Number of times key is pressed

Keys

Number of times key is pressed

1 2

3

4

5 6

7

8

1 2

3

4

5

G>

#

[ ]

*

■

-

/

l

C D

M N 0 6

C D

A в

С

2

C D

p

Q

R

s

7

o>

D E F 3

C D

T U V 8

Q>

G

H I 4

C D

w

X

Y Z

9

C D

J

К L

5

C D

Blank

0

Character Table

A ВСD E F

G

H I

J

К L M N

0

p

Q

RST

и

V w X Y

fl

U

11

г

L

il

il

t

F

LI

il

T

i

I

U

(/

h

I

L

M

IIMИ

11

и

i1

11

U

Г

T
1

II

U

1/

II

II

w

1/

/ 1

1/

I

Z

1

2

3 4

5

6 7

8

9

*

0

#

-

1

[ ]

J

7

i

I

I

H

:7

4

i)

b

11

I

fl

9

i/

/”

11
LI

•• •*

1

1

гL1

J

1

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

Editing a Caller Information

1 ® 2

Press Search/Select Select"EDiT".

PHONEBOOK.*1 ^sire d item.

<Phone Number>

4 The 1st digit of the

desired phone
number blinks.

5 © 6 ©

Move cursor. Press CLEAR.*2

<Name>

8 © 9 ©

Move cursor. Press CLEAR.*2

AND/ Number 7 (1=Г)

OR

Edit the phone Press OK.
number.*3

AND/ Name W ( Ш )

OR

Edit the name.*4 Press OK.

Clearing a C aller Information

1 ©

©G

©G

^ ©G

Press

Search/Select Search/Select Search/Select

PHONEBOOK.*1 desired item.

"CLEAR".

"YES ".*5

Dialling with the Phonebook

1 ©

2 Q

3 § )

Press

Search

Press TALK.

PHONEBOOK.

‘1 desired item.

• To exit the operation, press <§) any time.
*1 If there is no item stored in the phonebook, the display shows "no item " .
*2 Digits are cleared to the left of the flashing digit.
*3 Digits are added to the left of the flashing digit. If you need to clear or add more than one digit, repeat the steps from 5.
*4 Characters are added to the left of the flashing character. If you need to clear or add more than one character, repeat the

steps from 8.
*5 To continue clearing another caller information, repeat the steps from 2.

8.5.2. Storing the Phone Number into the Phonebook When Pre-dialling

7 Phone Number *1 2

5 <S>

({§D 3 ( Щ) 4 Nam e

Press OK to Press OK twice. Enter name,
store the number.

Press OK.

• To exit the operation, press <§) any time.
*1 If you need correction, press CLEAR. Digit is cleared to the left, then enter numbers.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

8.5.3. Storing the Number from the Redial List into the Phonebook

1

@>

* ©G

2 ©G з (B)

Press REDIAL.*1

Search/Select

Search/Select Press OK.

the desired dialled

"SAVE TEL NO".*2

number.

f If you need to store a name, enter the name and press OK.

OR

4

V Press OK.

• To exit the operation, press <§ any time.

*1 If there is no item stored in the redial/caller list, the display shows "no item" .
*2 If you need correction, press RIGHT or LEFT to move cursor then clear a character by pressing CLEAR, and/or enter digits.

Digits are cleared or added to the left of the flashing digit.

8.5.4. Hot Key (: Speed Dial)

You can assign the dialling buttons 1 through 9 as hot keys. You can choose 9 phone numbers from the phonebook.

Registering a Phone Number as a Hot Key

1 O

2 ©G

з O O

4 © G

Press

Search/Select Search/Select Search/Select

PHONEBOOK.*1

desired item. "HOT KEY REG". desired dialling button

number.*2

5 © G

Search/Select

"YES".

Dialling with Hot Key

7 Press and hold the dialling button registered as a hot key. 2 ( ^ )

Press TALK.

Clearing the Hot Key Registration

у Press and hold the dialling

button registered as

a hot key.

з ©

Press RIGHT. Select "clear"4Search/Select

"YES " .*3

• To exit the operation, press <§) any time.
*1 If there is no item stored in the phonebook, the display shows "no item" .
*2 The number is flashing if the dialling button is already assigned as a hot key.
*3 Phonebook registration will be remained even hot key registration is cleared.

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KX-TCD400RUB I KX-TCD400RUC I KX-TCD400RUF I KX-A140RUB I KX-A140RUC I KX-A140RUF

9 DISASSEMBLY INSTRUCTIONS

9.1. Base Unit

Shown in Fig.- To Remove Remove

1 Lower Cabinet

Screws (2.6 x 12)

.........

(A) x 2

2 Main P.C. Board Main P.C. Board

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