Panasonic KX-TDA100BX Service Manual

ORDER NO. KMS0304726C3

Hybrid IP-PBX

KX-TDA100BX

(for Asia, Middle Near East, South America and Af rica)

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.

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

KX-TDA100BX

CONTENTS

Page Page

1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 3

1.1. SUGGESTED PbF SOLDER

1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS
USED

2 FOR SERVICE TECHNICIANS
3 CAUTION

3.1. NOTE

3.2. SAFETY PRECAUTIONS

3.3. INSULATION RESISTANCE TEST

3.4. BATTERY CAUTION

3.5. CAUTION

4 SPECIFICATIONS

4.1. GENERAL DESCRIPTION

4.2. CHARACTERISTICS

4.3. SYSTEM CAPACITY

5 SYSTEM OVERVIEW

5.1. SYSTEM CONFIGURATIONS

5.2. SYSTEM COMPONENTS

5.3. SYSTEM CONNECTION DIAGRAM

6 NAME AND LOCATIONS
7 DISASSEMBLY INSTRUCTIONS

7.1. DISASSEMBLY INSTRUCTION (MPR CARD)

7.2. DISASSEMBLY INSTRUCTION (BACK BOARD)

8 OUTLINE

8.1. GENERAL DESCRIPTION

8.2. SYSTEM CONTROL

8.3. BACK BOARD SIGNAL CONNECTION DIAGRAM

9 MPR CARD CIRCUIT OPERATION

9.1. MPR CARD

10 BACK BOARD CIRCUIT OPERATION
11 TROUBLESHOOTING GUIDE

10

12
13

13
14

16

16
17
20

23

23

30
31

3

4

4
5

5
5
5
5
5

6

6
6
7

8

8
9

11.1. INTRUDUCTION

11.2. TYPICAL EXAMPLE

11.3. MPR CARD

11.4. ERROR LOG

12 DIAGNOSIS

12.1. DIAGNOSIS FEATURES

12.2. DIAGNOSIS TEST

13 IC DATA

13.1. IC101

14 TER MINAL GUIDE OF ICS, TR ANSISTO RS AND DIODES
15 HOW TO REPLACE A FLAT PACKAGE IC

15.1. PREPARATION

15.2. PROCEDURE

15.3. REMOVING SOLDER FROM BETWEEN PINS

16 CABINET AND ELECTRICAL PARTS LOCATION

16.1. EXTENSION BOARDS FOR SERVICING

17 ACCESSORIES AND PACKING MATERIALS
18 REPLACEMENT PARTS LIST

18.1. CABINET AND ELECTRICAL PARTS

18.2. ACCESSORIES AND PACKING MATERIALS

18.3. MPR CARD PARTS

18.4. BACK/LED BOARD PARTS

18.5. FIXTURES AND TOOLS

19 FOR THE SCHEMATIC DIAGRAM
20 SC HEMATIC DIAGRAM

20.1. MPR CARD

20.2. BACK/LED BOARD

20.3. WAVEFORM

21 PRINTED CIRCUIT BOARD

21.1. MPR CARD

21.2. BACK/LED BOARD

31
32
33
50

55

55
59

64

64

68
69

69
69
69

70

71

72
73

73
73
74
79
80

81
82

82
87
90

92

92
94

2

1 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 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° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron with
temperature control and adjust it to 700° ± 20° F, (370° ± 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 figure, below).

KX-TDA100BX

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.

3

KX-TDA100BX

1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED

(Component View)

R251R240

J113

BATALM

LED103

LED101

SDIN

SG SG

RES

R176

R164

R148

QA103

QA101

1

11

R243

R239

R242

R241

C208

25 36
C213

R244

CN211

10

1

6

24

37

R21

(Component View)

B45

A45 B45

A45

B45

L105

L104

L106 L110 L111

1

B

CN113

RA202

13

IC205

48

9
1812

R211

1

6

C204

R318
R312

12 1

X202

C212

R550

R342
R340

9

1

R218L210

R220

1

6

R311

C203

R317

R316
R310

L112

L107

R248
C217

1

R

C202

L108
L109

CN114

C218

R247

48 1

L207

L208 R233

R232R209

FIL205

IC1

R313 R306

R307
R308
R314
R315

R309

L101
L103

L102

3

PSUP1317ZB

25

IC303

24

PbF

L204 R229

L206 R231

L205

R230

FIL204

14

R304

R301

R303
R302
R305

C201

R338

C206

R10

R10

C209
C210
R348
R345
C207

R333
R332
R337

48 1

R12

CN107

R347
R344
R343
R346
C208

CN112

R12R12

IC304

R335
R330
R331
R336

Marked PbF (PbF is marked around here)

RA308

25

24

RA309

30 2

44 23

IC302

221

1

44

IC

CN206

R307 J314

R306

129

14

17

IC311

8

16

18

IC310

9

1

IC1

Marked PbF (PbF is marked around here)

PbF

R326

R334

R323

R329

R328

R325

R327

R324

B

C205

PSUP1367Z-B

PSUP1367Z-A

RUN

LED201

LED202

ALM

D407

C408

L401

C402

14

B1

A1 B1

A1 B1

31

CN201

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.

4

KX-TDA100BX

3 CAUTION

3.1. NOTE

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

3.2. SAFETY PRECAUTIONS

1. Before servicing, unplug the power cord to prevent an electric shock.

2. When replacing parts, use only the manufacturer´s recommended components for safety.

3. Check the condition of the power cord. Replace if wear or damage is evident.

4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.

5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent
the customer from being exposed to shock hazards.

3.3. INSULATION RESISTANCE TEST

1. Unplug the power cord and short the two prongs of the plug with a jumper wire.

2. Turn on the power switch.

3. Measure the resistance value with ohmmeter between the jumpered AC plug and each exposed metal cabinet part, such as
screw threads, control shafts, handle brackets, etc.

Note:

Some exposed parts may be isolated from the chassis by design. These will read infinity.

4. If the measurement is outside the specified limits, there is a possibility of shock hazard. The equipment should be repaired and
rechecked before it is returned to the customer.

3.4. BATTERY CAUTION

1. Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the
manufacturer. Dispose of used batteries according to the manufacturer’s Instructions.

2. The lithium battery is a critical component (type No.CR23541). Please observe for the proper polarity and the exact location
when replacing it and soldering the replacement lithium battery in.

3.5. CAUTION

The power socket wall outlet should be located near this equipment and be easily accessible.

5

KX-TDA100BX

4 SPECIFICATIONS

4.1. GENERAL DESCRIPTION

Control Bus Original bus (16 bit, 8 MHz,10 megabytes per second)
Communication Bus H.100 bus conformity (1024 time slot)
Switching Non Blocking Distributed Time Switch
Power Input PSU-S

External Battery +36 V DC (+12 V DC x 3, battery capacity of 28 Ah or below recommended for 1 external

Maximum Power Failure Tolerance 300 ms (without using backup battery)
Memory Backup Duration 7 years
Dialling Trunk Dial Pulse (DP) 10 pps, 20 pps

Mode Conversion DP-DTMF, DTMF-DP
Ring Frequency 20 Hz/25 Hz (selectable)
Trunk Loop Limit 1600 Ω maximum
Operating

Environment
Conference Call Trunk From 10 x 3-party conference call to 4 x 8-party conference call

Music on Hold (MOH) 2 ports (Level Control: -11 dB to +11 dB in 1 dB steps)

Paging Internal Level Control: -6 dB to +3 dB in 3 dB steps

Serial Interface Port RS-232C 1 (max 115.2 kbps)

Extension Connection Cable SLT 1 pair wire (T, R)

Dimension KX-TDA100 334 mm (W) x 390 mm (H) x 270 mm (D)

Weight (when fully mounted) KX-TDA100 Under 12 kg (26.5 lb)

(KX-TDA0108)
PSU-M

(KX-TDA0104)

Extension Dial Pulse (DP) 10 pps, 20 pps

Temperature 0 °Cto40°C
Humidity 10%to 90% (non condensing)

External 2 ports (Volume Control: -15 dB to +15 dB in 1 dB steps)

USB 1

100 V AC to 130 V AC/200 V AC to 240 V AC, 1.4 A/0.8 A, 50 Hz/60 Hz

100 V AC to 130 V AC/200 V AC to 240 V AC, 2.5 A/1.4 A, 50 Hz/60 Hz

battery)

Tone (DTMF) Dialling

Tone (DTMF) Dialling

MOH1: External Music Source port
MOH2: Selectable Internal/External Music Source port

DPT 1-pair wire (D1, D2) or

2-pair wire (T, R, D1, D2)
APT 2-pair wire (T, R, D1, D2)
DSS Consoles and Add-on Key Module 1-pair wire (D1, D2)

(13 5/32 in x 15 11/32 in x 10 5/8 in)

4.2. CHARACTERISTICS

Terminal Equipment Loop Limit

Minimum Leakage Resistance 15000 Ω maximum
Maximum Number of Extension

Instruments per Line
Ring Voltage 75 Vrms at 20 Hz/25 Hz depending on the Ringing Load
Trunk Loop Limit 1600 Ω maximum
Hookswitch Flash/Recall Timing Range 24 ms to 2032 ms
BRI Cards Internal ISDN Mode Supply Voltage: 40 V

Door Opener Current Limit 24 V DC/30 V AC, 1 A maximum
Paging Terminal Impedance 600 Ω
MOH (Music on Hold) Terminal Impedance 10000 Ω

· PT: KX-T76xx series and KX-T7560/KX-T7565: 90 Ω; all other DPTs/APTs: 40 Ω

· SLT: 600 Ω including set

· Doorphone: 20 Ω

· CS: 130 Ω

1 for PT or SLT
2 by Parallel or eXtra Device Port connection of a PT and an SLT

Power Supply: 4.5 W per 1 line,10 W per 4 lines (BRI4)

4.5 W per 1 line, 20 W per 8 lines (BRI8)
Power Supply Method: Phantom Power Supply

6

4.3. SYSTEM CAPACITY

4.3.1. Maximum Trunk and Extension Cards

The following number of trunk and extension cards can be installed in the main unit (Hybrid IP-PBX) for expansion.

Card Type KX-TDA100
Trunk Card *1 4
Extension Card 4
Total 5

*1 One T1, E1, PRI30 and PRI23 card counts as 2 cards.

Note:

· For each card, a maximum number that can be installed in the main unit (Hybrid IP-PBX) is listed in "Installation Manual".

· Any card that exceeds the capacity of the main unit (Hybrid IP-PBX) will be ignored.

· When the main unit (Hybrid IP-PBX) starts up with an invalid configuration mode, some cards will be ignored.

4.3.2. Maximum Terminal Equipment

The following number of terminal equipment can be supported by the main unit (Hybrid IP-PBX).

Terminal Equipment Type KX-TDA100
Telephone *1 64
CS 16
PS 128
Voice Mail 2
Doorphone 8
Door Opener 8

KX-TDA100BX

*1 When only T76xx series and T7560, T7565 DPTs and SLTs are connected. If other DPTs or APTs are connected, the
maximum number will decrease as each of these units is counted as 4 sets of SLTs or DPTs (T76xx series and T7560, T7565).

4.3.3. Power Supply Unit Selection

Main unit (Hybrid IP-PBX) needs an optional power supply unit (PSU) suitable for its configuration. Calculate the amount of
"load figures" from the type and number of equipment to be connected, and determine the type of PSU that will be required.

Load Figure Calculation

Equipment Type Load Figure

PT DPT (T76xx series and T7560, T7565) 1

Other DPT/APT/DSS Console 4

Extension Card *1 DHLC8 8

SLC8 8
SLC16 16
MSLC16 16

CS 4

ISDN Extension 2

Voice Mail 1

*1 Only the extension cards that can support SLTs count for the load figures.

PSU Capability

Each PSU supports a different amount of load figures.

PSU Type Maximum Load Figures
PSU-S 64
PSU-M *2 128

*2 Available for the KX-TDA100 and KX-TDA200.

7

KX-TDA100BX

5 SYSTEM OVERVIEW

5.1. SYSTEM CONFIGURATIONS

8

5.2. SYSTEM COMPONENTS

Model Card Name Description
Shelf KX-TDA100BX Basic Shelf
Main Central Processing

Card
MPR Option Card KX-TDA0196XJ RMT Remote Card
CO Line Cards KX-TDA0180X

Extension Cards KX-TDA0144XJ

Other Cards KX-TDA0161XJ

Power Supply Units
(PSUs)

Cell Stations (CS’s) KX-TDA0142CE 4-Channel Cell Station Unit for DECT Portable Station
Proprietary Equipment KX-A228XJ

KX-TDA0181X
KX-TDA0184XJ
KX-TDA0188XJ
KX-TDA0193XJ
KX-TDA0284XJ
KX-TDA0288XJ
KX-TDA0290CJ
KX-TDA0290X
KX-TDA0480X

KX-TDA0170XJ
KX-TDA0171XJ
KX-TDA0172XJ
KX-TDA0173XJ
KX-TDA0174XJ
KX-TDA0175XJ

KX-TDA0166XJ
KX-TDA0190XJ
KX-TDA0191XJ
KX-TDA0410XJ

KX-TDA0104XJ
KX-TDA0108XJ

KX-A229XJ
KX-A258XJ Blank Slot Cover
KX-T30865X Doorphone

MPR Main Processing Card

LCOT8

LCOT16

E&M8

E1
CID8
BRI4
BRI8

PRI30
PRI23

IP-GW4

CSIF8

DHLC8

DLC8

DLC16

SLC8

SLC16

MSLC16

DHP4

ECHO16

OPB3
MSG4

CTI-LINK

PSU-M
PSU-S

8-Port Analogue Trunk Card
16-Port Analogue Trunk Card
8-Port E &M Trunk Card
E-1 Trunk Card
8-Port Caller ID Card
4-Port BRI Card
8-Port BRI Card
PRI Card
PRI Card
4-Channel VoIP Gateway Card

8 Cell Station Interface Card
8-Port Digital Hybrid Extension Card
8-Port Digital Extension C ard
16-Port Digital Extension Card
8-Port Single Line Telephone Extension Card
16-Port Single Line Telephone Extension Card
16-Port Single Line Telephone Extension with Message Lamp Card

4-Port Doorphone Card
16-Channel Echo Canceller Card
Optional 3-Slot Base Card
4-Channel Message Card
CTI Link Card

M-Type Power Supply Unit
S-Type Power Supply Unit

S/M-type Back-up Battery Cable
L-type Back-up Battery Cable

KX-TDA100BX

Available Telephones

This main unit (Hybrid IP-PBX) supports all of the Panasonic KX-T7xxx and KX-TD7xxx series:

· Digital/Analog proprietary telephones (e.g., KX-T7625, KX-T7630, KX-T7633, KX-T7636)

· Portable stations (e.g., KX-TD7690, KX-TD7680)

· DSS consoles (e.g., KX-T7640)

This main unit (Hybrid IP-PBX) does not support the following telephones:

· KX-T308xx series Proprietary Telephones and DSS consoles

· KX-T616xx series Proprietary Telephones and DSS consoles

· KX-T1232xx series Proprietary Telephones and DSS consoles

For the equipment (e.g., Add-on Key Module, USB Module, Headset) that can be connected to a particular telephone, refer to
the telephone’s manual.

Abbreviations in this manual

Proprietary telephone: PT
Digital proprietary telephone: DPT
Analog proprietary telephone: APT
Portable station: PS
Single line telephone: SLT

Note:

· There are some optional service cards and features that are not available for certain countries/areas. Consult your
authorized Panasonic dealer for detailed instructions.

· The power supply capacity of this main unit (Hybrid IP-PBX) may differ from the values described in this manual depending
on the model number. Please consult your dealer for detailed information.

9

KX-TDA100BX

5.3. SYSTEM CONNECTION DIAGRAM

10

KX-TDA100BX

*Only 1 Server PC can be connected to the main unit (Hybrid IP-PBX). Two or more Server PCs cannot be used simultaneously.

11

KX-TDA100BX

6 NAME AND LOCATIONS

· Null slot:
Null slot is not available for any optional service card.

LED Type Color Usage and Status Definition

RUN Indicator LED1

(Power/RUN)

ALARM Indicator LED2

(Alarm)

Slot Type MPR Card CO Line Cards

Free Slots 1 to 5 No Yes Yes
Option Card Slot No No Yes
MPR Card Slot Yes No No

Green Display of Power Supply & RUN Status

OFF: Power OFF (inc. in normal resetting)
ON: Power ON & RUN (On-Line)
Flash (60/min.): Power ON & In starting
Flash (120/min.): Power ON & In resetting before system clear

Red Display of ALARM

OFF: Normal
ON: Alarm (CPU stop, Alarm for each card)
Flash: Alarm (MPR file error in restarting)

Extension Cards

OPB3 Card

CTL-LINK Card

12

7 DISASSEMBLY INSTRUCTIONS

7.1. DISASSEMBLY INSTRUCTION (MPR CARD)

1. Remove the Lib by sliding it in the direction of arrow 1.

2. This will be removed if the user attached a Pad Lock as shown in a
Fig.1.

3. Loosen the Screw.

4. Front Cover is removed in the direction of arrow 2.

KX-TDA100BX

5. Loosen the two Screws.

6. Remove the MPR Card.

13

KX-TDA100BX

7.2. DISASSEMBLY INSTRUCTION (BACK BOARD)

1. Remove four Screws (A).

2. Remove the Left Side Cover and the Right Side Cover.

3. Remove the Hook. Remove the Top Cover.

4. Remove nine Screws (B).

5. Remove the Back Cover.

14

6. Remove the RS-232C Connector and LED Connector from Back
Board 1.

7. Remove eight Screws (C).

8. Remove Back Board 1.

9. Remove the LED Connector from Back Board 2.

10. Remove the Screw (C).

11. Remove Back Board 2.

KX-TDA100BX

15

KX-TDA100BX

8 OUTLINE

8.1. GENERAL DESCRIPTION

The control system of the main unit is composed of the main central processing card (MPR card) controlling the entire system
and exchanging voice data, the circuit control section (LPR/LC) controlling various telephone lines and the power supply section
(POWER).

MPR card, LPR/LC and POWER are connected each other through the System BUS (ADDRESS BUS, DATA BUS and
CONTROL BUS). MPR card and LPR/LC are under I/O control (I/O Read/Write) by MPR card.

MPR card controls LPR which have a microprocessor by the lnter-Microprocessor Communication System supported by ASIC.
Those are, MPR card and LPR exchange controlling messages through bi-directional buffer and CPU controls LPR so that it
can manage multiple telephone lines. Since LC does not have a microprocessor, it is completely controlled through ASIC from
MPR card.

I/O address for LPR access is fixed for each free slot. CPU discriminates the sort of LPR through the inter-processor
communication system.

POWER detects the voltage drop of the AC input and the DC output and transfers it to MPR card.

8.1.1. MPR Card

This card is the main control section of main unit. It controls all the cards mounted on the free slots, and communication of RS­232C ports.

There are two LED (BATT ALARM, SD ACCESS), one SD card slot, one push switch, one slide switch, one USB port, two MOH
jacks, and two EPG jacks in the front of MPR card. BATT ALARM LED light red if the output of the lithium battery in MPR card
is set to about 2.8V or less. During access to SD card, it green-blinks or SD ACCESS LED light and blink. Enclosed SD card
is used for SD card slot on a main part, putting in. The main program is stored in SD card. It connects with PC and a USB port
is used for a maintenance or a system setup. The external sound source for BGM or suspension sound is connected to a MOH
jack. A speaker with amplifier is connected to external paging at an EPG jack. Light Emitting Diode (RUN indicator,
ALARMindicator) arranged at the main part upper part is directly controlled from MPR card, and shows the state of a system
of operation.

This control circuit executes the control signals for the exchange process, and this card is composed of the following
(A) 32bit CPU (32bit data bus)
(B) SDRAMs, SRAMs
(C) Flash memorys
(D) Lithium Battery for back-up of clock IC and Static RAMs

8.1.2. Back Board

BB (back board) is the mother board of the basic shelf. This board connects each card/unit (POWER, MPR card, and optional
service cards) together. This board has one RS-232C connector.

8.1.3. Power Supply Unit

This unit is switching regulator power supply and supplies DC voltages to MPR card, and optional card (free slot). PSU (power
supply unit) has four outputs (40V, 30V, 15VPT, 15V). 15V output is supplied only in MPR card and option card. Other outputs
are mainly used as an object for the electric supply to a terminal. Refer to each S/M for the details of PSU.

16

8.2. SYSTEM CONTROL

8.2.1. System Control Block Diagram

KX-TDA100BX

17

KX-TDA100BX

8.2.2. Voice (TDM Highway) Bus Block Diagram

18

8.2.3. Voice Bus Logical Assignment

In the line card, the CT_D line number, which is output in accordance with the inserted slot, and the time slot are assigned by
software.

For the detail of output slot for each card (optional service card), refer to the service manual of the card (optional service card).

KX-TDA100BX

8.2.4. Back Board Signaling

Back board waveform of TDM bus for voice

19

KX-TDA100BX

8.3. BACK BOARD SIGNAL CONNECTION DIAGRAM

8.3.1. CT Bus System Connection Diagram

20

8.3.2. EC Bus System Connection Diagram

KX-TDA100BX

21

KX-TDA100BX

8.3.3. System Control and Analog Signal Connection Diagram

8.3.4. Power Supply System Connection Diagram

22

9 MPR CARD CIRCUIT OPERATION

9.1. MPR CARD

9.1.1. Outline

1) Function

· System Control

· Circuit Switching (includes gain adjustment function)

· Conference Call (3 people x 8 ~ 8 people x 3)

· MOH

· PAGING

· Clock

2) Configuration

· Power Supply: DC/DC Converter

· CPU: HITACHI SH7709S (133MHz)

· ASIC: Our own products

· ROM: 4Mbit x 1 (for boot programs)

· SDRAM: 64Mbit x 2 (for work area)

· SRAM: 4Mbit x 2 (for user data backup)

· SD card I/F (for operating programs) x 1

· USB I/F (for PC programming) x 1

· MOH: External sound input x 2

· PAGING: External output x 2

· Expanded memory connector x 1

· Modem card connector x 1

3) Operation Rating

· Power Input : +15V

· Power Output : +15V (for MOH)

+3.3V (for I/O)
+3.3VBB (back board signal line pull-up)
+3.3VB (for SRAM backup)
+1.8V (for CPU core)
+1.9VB (for clocking backup)
±9.4V (for RS-232C driver/receiver)
+5VRMT unused (for remote card)
+5V (for RS-232C driver/receiver)

KX-TDA100BX

23

KX-TDA100BX

9.1.2. Description of Each Part

LED (BATALM): Lights when the lithium battery voltage drops below 2.8V.
LED (SD ACCES): Lights on when the SD card is being accessed.
SD card slot: Mounts the system program SD card.
Reset Switch: Press to reset the system.
System Initialize Switch:
On default startup, set the switch to the "SYSTEM INITIALIZE" position before turning the power ON. Return the switch to the

"NORMAL" position when the main power switch starts to flash. On normal startup, turn the power ON with this switch in the
"NORMAL" position.

USB connector: B-type connector. Used for PC programming.
MOH 1, 2: External music on hold input.
PAGING 1, 2: External PAGING output. Connect to a device with a built-in amplifier.

24

9.1.3. Block Diagram

IC403

+1.8V

+3.3V

+9V +5V

-9V

+15V

Series Reg.

SDRAM

Total:16 MB

IC413 IC402

64Mbit*2

SW Reg.

Series Reg.

SW Reg.

(32bit bus)(16bit bus)(16bit bus)

90pin DIN

+15V

ASIC

CKE

CLK
nCAS
nRAS
RD/nWR
nCS_3
ADD2-15
D[31:0]

D0-D15

DQMLU,DQMLL
DQMUU,DQMUL

GND

DATA

+3.3V

IC102

ADD

A1-A23

EC_CLK

+3.3V_BB

(for B.B.)

Current

Limitter

EC_CLK

nCS

nCS_5

EC_nRST

EC_AD[15:0]

EC_nRST

EC_AD[15:0]

nWR

nRD

nWR

nRD

EC_CBE[1:0]

EC_nPAR

EC_nFRAME

EC_nTRDY

EC_bus

EC_nPAR

EC_nTRDY

EC_CBE[1:0]

EC_nFRAME

nBS

nBS

TCXO

16.384MHz

EC_nSTOP

EC_nPERR

EC_nCDET

Termination

EC_nSTOP

EC_nCDET

EC_nPERR

X103

EC_nINT

(EC_IDSEL)

EC_nINT

nBREQ

nBACK

nBREQ

nBACK

nIRQ

nIRQ

+3.3V

HALT, Mu/nA,MOH_SEL,

PIO[7:4]

MELODY_SEL

CT_NETREF

CT_D[7:0]

CT_FRAME

CT_C8

H100_bus

CT_D[7:0]

CT_FRAME

CT_NETREF

LDHW0,LUHW0

nF0,HW_CLK

SDI,SDO,CTS,RTS

Mu/nA

TXD1, RS1, ER1

+9V,-9V

DRV

IC120

CT_C8

CH_SEL[2:0]

DCALM

RXD1, CS1, DR1

TXD2

RXD2

+5V

RCV

IC121

CODEC

(+3.3V)

CH_SEL0

ACALM

POWTYPE[1:0]

to CPU(Input Port)

KX-TDA100BX

RINGER

nBATT

nLOS

nHALT

from ASIC

from ASIC(Output Port)

AGC

RING_SIN

RING_SYNC

Paging1

MOH1

LEDALM

from CPU(Output Port) LEDRUN

KX-TDA100 MPR CARD BLOCK DIAGRAM

FLASH

IC303

Total:512KB

SRAM

Total:1MB

IC301, IC302 IC305, IC306

MEC Card

(Future option)

(Expansion Memory)

IC205

(MN5773)

SD Card Interface

SD Card

4Mbit

4Mbit*2

USB Interface

OSC

X202

20MHz

IC204

(ML60852A)

USB

CN209

Conn.

nCS_0

nRD
RD/nWR
ADD1-23

LD[15:0]

+3.3VB

nRD
RD/nWR
nCS_4
ADD1-19

LD[15:0]

+3.3VB

CKE
CKIO
nCAS
nRAS
RD/nWR
nCS_2 etc.
ADD[25:0]
LD[15:0]
D[31:0]

nRD

DQMLU,DQMLL

nCS_SDB
ADD0-7

LD[15:0]

X201

OSC

12MHz

DQMLU,DQMLL
DQMUU,DQMUL

LD[15:0]

DATA BUS

ADD BUS

CNT BUS

Dbus

+3.3V

+3.3VB

Buffer

LED101

IC404

Regulator

(+1.8V)

RTC

V

for

SDB, USB

Flash,SRAM,

CS Generation

A[25:0]

nWR, nRD

D[31:0]

IC123, IC124

+3.3V

SD-ACCESS

BATT ALARM

LED103

Battery

(+3.0V)

nCS0,3,4

nRASs, nCASs,etc

+1.8V

DC_ALM,nIRQ_USB, nIRQ_SDB

Interrupu

Bus Arbiter

nDREQ0,1

nDACK0,1

to Reset IC

Reset

(Manual Reset SW)

SW101

RTC

V

Controller

DMAC

+3.3V

32.768kHz

X102

RTC

GAIN0,GAIN1

nPRS_RMT

OSC

X101

16.384MHz

CLK

Modulation

to CPU

SW

Initialize

TxD,RxD,CTS,RTS(UART i/f)

UHW,DHW,CLK(4.096MHz)

DTR,DSR

30pin Connection

RMT card

(Option)

CoreCLK=131.072MHz

Local

Reset

IC107

IC103

CPU

IC101

SH7709S

SW103

IC406 IC405

CODEC

(+3.3V)

CH_SEL1

+3.3V

Melody

CH_SEL2

IC

IC410

MELODY_SEL

(Software)

7pin Conn.

(Debug Interface)

(for RS232C port)

SIO(SCI0)

SIO with FIFO(SCI2)

SIO with FIFO(SCI1)

MOH-SEL

(Software)

(Checker Pad only)

JTAG Interface

PCMCIA Interface

DTR,RTS,LEDs,REG,BELTIME

AGC

+15V/GND

P-I/O Ports

IC409 IC408

DSRs,DTRs, RTS, CTS,

nINIT, DIPSWs

AC_ALM,DC_ALM,nBATALM

Paging2

MOH2

POWTYPE[1:0],nBATT

MPR Card

25

KX-TDA100BX

9.1.4. Circuit Description

9.1.4.1. Outline of Block Description

· CPU block
Operates the main unit control. Also operates various controls, generation of select signal, DMA control and serial port control.

This contains the built-in clock function.

· ASIC block
Provides the communication between each optional service card, call control (TSW function), conference call, tone generation

and gain control function.

· Memory block
This is a work area used for the main unit control program storage, the system boot program storage, or the user configuration

data storage.

· USB block
Provides the USB I/F function. Connects to the PC to be used for PC programming or system data load/store.

· SD card block
Provides the SD card I/F function and loads the main unit program and the system data from the SD card containing the main

unit control program.

· MOH/PAGING block
Provides the external music on hold input x 2, and the external paging output x 2 port. Also this provides the external music on

hold input 1 system and exclusively the internal music on hold output.

· Power block
Consists of DC/DC converter circuit and various regulators.

9.1.4.2. Detail of Block Description

· CPU block
Configuration: IC101 (CPU), IC107 (reset IC), IC103 (spread clock IC), X101 (CPU source clock), X102 (clocking clock) etc.
Function: (IC101)
Generates the select signal in accordance with the memory map and operates read/write of data between each peripheral.
Controls the DMA transfer between USB I/F or built-in serial controller and memory.
Operates input/output control of each I/O signal in accordance with the program.
Contains the built-in clock function (battery backup) with the source clock X102 (32.768 kHz).
(IC107)
Monitoring the power voltage, it generates a reset signal when the voltage drops under the constant value (2.9Vtyp) or when

the reset switch is pressed down.
(IC103)
To reduce unnecessary radiation, it generates the clock with the constant blurring mainly X101 clock output (16.384 MHz).

Description of the Signal on MPR

Signal Name Functions

+15VIN +15V DC

+15V For Circuit +15V DC MOH

+9.4V For Driver IC +9.4V DC RS-232C

+5V For Driver IC +5V DC RS-232C

+5VRMT Reserve

3.3V_BB +3.3V DC

+3.3VB +3.3V DC

+3.3V +3.3V DC

1.9VB +1.9V DC

1.8V For Core +1.8V DC CPU (IC100)
A[0]-A[25] Address bus
nAC_ALM AC alarm signal: Indicates AC voltage cutoff. (L: Alarm condition)

nBACK Bus Acknowledge: Indicates Bus Acknowledge.
nBATT Indicates whether external battery is connected or not. L: Connected

For pull-up of back board signal line

Battery backup
For SRAM (IC301, IC302) backup

Battery backup
For clock function of CPU (IC100)

26

KX-TDA100BX

Signal Name Functions

nBAT_ALM Battery Alarm Signal: Indicates the declined voltage of lithium battery. (L: Alarm condition)

nBREQ Bus Request: Bus request signal

nBS Bus Cycle Start: Bus cycle start signal

nCASL Lower Byte Address C olumn Address Strobe: CAS signal for SDRAM

nCASU Upper Byte Address Column Address Strobe: CAS signal for SDRAM
CH_SEL[0] Synchronous Signal for CODEC (For MOH#1/Page#1)
CH_SEL[1] Synchronous Signal for CODEC (For MOH#2/Page#2)
CH_SEL[2] Synchronous Signal for C ODEC (For RMT)

CKE Clock Enable: CKE signal for SDRAM

CKIO Clock I/O Terminal: For bus clock of SDRAM (IC305, IC306) and ASIC (IC101) CPU (IC100) outputs the clock of four

times frequency as Source clock (16.384MHz).
nCS0 Chip Select 0: Chip select signal for flash memory
nCS2 Chip Select 2: Chip select signal for the expanded SDRAM (Future Option, Reserve at present.)
nCS3 Chip Select 3: Chip select signal for SDRAM
nCS4 Chip Select 4: Chip select signal for SRAM
nCS5 Chip Select 5: Chip select signal for ASIC
nCS6 Chip Select 6: Chip select signal for USB I/F and SD card I/F

nCS_FLASH0 Chip Select for Flash memory 0: CS signal for IC303
nCS_FLASH1 Chip Select for Flash memory 1: CS signal for IC304 (reserve)

nCS_SDB0 Chip Select for Sd card I/F

nCS_SDB1 Reserve
nCS_SRAM0 Chip Select for SRAM 0: CS signal for IC301
nCS_SRAM1 Chip Select for SRAM 1: CS signal for IC302

nCS_USB Chip Select for USB I/F

nCTS2 Clear To Send from RS-232C connector

CTS_RMT Clear to Send: Flow signal for modem

CT_C8 Clock 8.192MHz clock outputted from PLL master
CT_D[0] -[7] CT Data Bus: Two-way serial data bus to which the drive from any card is possible in the system.
CT_FRAME Frame Signal: 8KHz frame signal outputted from the master

CT_NETREF Backup Synchronous Signal (MAX 2MHz) 8KHz signal output from slave etc.

C_CS[0] Chip Select For RMT
D[0] -D[31] Data Bus
nDACK0-1 DMA Acknowledge: For USB I/F

DCD2 Data Carrier Detect

DCLK_RMT Codec Clock (8MHz): For RMT

nDC_ALM DC ALARM:DC alarm signal; Indicates the declined DC voltage. (L: Alarm condition)

DIN_RMT Codec Data Input: For RMT

DOUT_RMT Codec Data Output: For RMT

DQMLL (nWE0)

Data Input/Output Mask (Write Enable): DQM signal for SDRAM and WE signal for each memory IC and ASIC
DQMLU (nWE1)
DQMUL (nWE2)

DQMUU (nWE3)

nDREQ0-1 DMA Request: For USB I/F

DSR2 Data Set Ready from RS-232C connector

DSR_RMT Data Set Ready from RS-232C connector

DTR2 Data Terminal Ready to RS-232C connector

EC_AD[0] -[15] Address of EC Synchronous Bus, Data Bus (4MHz)

EC_nCBE[1]-[0] EC Bus Command/Byte Enable: The initiator drives as bus command in the address phase and as byte enable in the

data phase.

EC_nCDET EC Line Card Detection Signal Asynchronous interrupting signal

EC_CLK Clock of EC Synchronous Bus (8MHz) All EC bus signals except nRESET/EC_INT operates in sync with this signal.

EC_nFRAME EC Cycle Frame Signal: Indicates the drive by initiator and the execution of ECI bus cycle.

EC_nINT EC Interrupting Signal: Be asserted when slave interrupt occurs.
EC_PAR Parity Bit of EC Synchronous Bus: Drive by applying even parity to AD[15:0] and CBE[1:0]. (4MHz)

EC_nPERR EC Parity Error: Flag indicating error status b y parity flag

EC_nRST EC Reset Input: System reset input signal
EC_nSTOP EC Bus Stop Signal: Be asserted when target requests transaction halt to initiator.
EC_nTRDY EC Target Ready Signal: Indicates the drive by target and the possible data transfer.

nFAN_ALM Fan Alarm: It goes Low at the error of the L Power Supply’s FAN. It goes High when the FAN is normal and, Power

Supply S and M, which does not carry the FAN, are used.

FSEL0 Signal which switches the Flash Memory address of the MEX card. FSEL0 is set by hard jumper. L: The number of

Flash Memory chips on the MPR is 1pc. H: The number is 2pcs.

GAIN0-1 Gain: Gain adjustment signal for the RMT card (Reserve)

HALT Alerts the occurrence of the declined DC voltage to line card. H: Active L: Normal
nINIT System Initialization Switch Input: L: At system initialization, H: At normal start-up

nIRQ_ASIC Interrupt Request f rom ASIC: Indicates ASIC requests interrupt.

nIRQ_SDB Interrupt Request from SD card I/F: Indicates SD card I/F requests interrupt.
nIRQ_USB Interrupt Request from USB I/F: Indicates USB I/F requests interrupt.

27

KX-TDA100BX

Signal Name Functions

LA[1] -[16] Address bus

nLB Lower Byte Select: Indicates Lower byte select signal of SRAM

LD[0] -[15] Data Bus

LDHW[1] -[0] Down Highway: Data output terminal connected to codec etc. as down data signal of local highway

nLEDALM Alarm display L: On
nLEDRUN RUN display L: On

nLOS Loss of synchronous signal: Reserve at present

LHWCLK[0] Highway Clock Signal (8MHz): Bit clock of local highway and selectable among 2.048 / 4.096 / 8.192MHz.
LUHW[1] -[0] Up Highway: Data input terminal connected to codec etc. as up data signal of local highway.
MASTER/nS Master/slave identification signal when SIC card (Future Option) as intersystem connection card is mounted. MPR

MD0-2 Mode Control Terminal: Clock operation mode of CPU is set.MD2: L, MD1: L, MD0: H Fixed

MELODYSEL Melody IC Tune Name Select L: Ju te veux H: Minuet

MEX_MODE[0] -[3] Information Bit to know the memory mounting capacity etc. of MEX card. Reserve at present.

MOHSEL Switching Signal between internal hold sound source and external hold sound H: Internal L: External

Mu/nA Switching Signal of Sound Compression Law H: Mu-Law, L: A-Law

M/nS TDA100, TDA200 Identification Signal set on the back board. The MPR inputs this signal and detects which the MPR

POWTYPE[0] -[1]

inputs this signal and detects which the MPR will be. H: Master L: Slave

will be. H: TDA200, L: TDA100

nPRS_MEX Press MEX: Information of MEX Card Attachment L: Attached, H: Not attached

nPRS_RMT Press RMT: Information of RMT Card Attachment L: Attached, H: Not attached

nPRS_SDB Press SD card: Information of SD Card Attachment L: Attached, H: Not attached

nRAS3L Lower Byte Address Row Address Strobe: RAS signal for SDRAM

nRAS3U Upper Byte Address Row Address Strobe: RAS signal for SDRAM

nRD Read: USB I/F, SD card I/F, ASIC, SRAM, Read signal for flash memory

RD/nWR Read/nWrite: Read/Write signal for SDRAM

nRESOUT Reset Out: Reset from CPU (IC101) to each card

nRESET Reset: Power-on reset signal

nRESETM Manual Reset: Manual reset request signal for CPU

RINGER Ringer Signal: Outputs square-wave of 16Hz/20Hz/25Hz as source signal of ringer

RING_SYNC Trigger Signal of Ringer Signal generation timing to each internal line card

nRTS2 Request To Send to RS-232C connector

RTS_RMT Request to Send: Flow signal for modem

RXD2 Receive Data from RS-232C connector

RXD_RMT Serial Data Output Terminal: ASIC

SDCD SD Card Detect Input

SDCLK SD Card Clock Out

SDCMD SD Command

SDDAT0-3 SD Card Data

SDWP SD Card Write Protect Input

SHW_CLK Intersystem Highway Clock Signal (4MHz) Bit clock of intersystem highway and selectable between

SHW_FH Intersystem Highway Synchronous Signal (8KHz) 8KHz frame synchronous signal of intersystem highway

TXD2 Transmit Data to RS-232C connector

TXD_RMT Serial Data Input Terminal: Data receiving terminal from RMT to UART in the ASIC

nUB Upper Byte Select: SRAM

USB_D+ USB Data +

USB_D- USB Data -

VBUS Bit indicating power source is supplied to USB bus [Host (PC etc.) is connected.] H: Host connected L: Host not

VREF Reference Voltage for MOH Circuit Intermediate potential of +15V

nWAIT Wait: Hardware wait request signal for bus timing between CPU and ASIC

WDTCLR Reserve

nWE Write Enable: W E signal of SRAM

256KHz/512KHz/1.024MHz/2.048MHz/4.096MHz.

connected

· ASIC block
Configuration: IC102 (ASIC), IC111, X103 and so on.
Function: (IC102)

28

Functions as the bus master of EC bus (synchronous bus with 16 bit width, transmission rate max.10Mbps). Communicates
with ASIC mounted to each option card via EC bus and controls the option card.

Controls CT bus (HW clock 8.192MHz, 8 highway, 128 timeslot) for TSW function.
(A detailed description of TSW will be added later.)
Controls the conference call for 3 people x ~8 parties ~ 8 people x ~3 parties.
Generates single and DTMF tone in any highway and timeslot.
Provides the digital gain control function by data conversion.
Provides some I/O ports for CODEC channel pulse generation, modem encoding rule setting and music on hold switching

and is controlled by CPU.

· Memory block
Configuration: IC301, IC302 (SRAM), IC303 (FlashROM), IC305, IC306 (SDRAM), IC309, IC310, IC311 (logic IC) and so

on.
Function: (IC301, IC302)
Saves the user configuration data (such as key assign data per PT).
This memory is battery backup.
(IC303)
Saves (some of) the system boot program and the system data.
(IC305, IC306)
The main program is loaded from the SD card on the system start-up.
Used as the program area and the CPU work area after start-up.
Makes a direct bus connection to CPU due to high-speed action (bus clock 66MHz).
(IC309, IC310, IC311)
Generates each memory select signal from the memory area select signal and upper address. Generates the write signal

and upper/lower byte select signal.

· USB block
Configuration: IC204 (USB I/F), X201 (source clock: 12.000MHz), CN209 (USB connector) etc.
Function: Connects to the USB host system (mainly PC) via CN209 (B type connector) as a USB device and makes data

transfer by max.11Mbps. DMA function of CPU is utilized to transfer the data.

· SD card block
Configuration: IC205 (SD card I/F), IC209, X202(20MHz), CN211 (SD card connector) and so on.
Function: Loads the main program and the system data from the SD card connected to CN211 by 10Mbps. Restores the

system data periodically.

· MOH/PAGING block
Configuration: IC405, IC406 (CODEC), IC408, IC409 (OP Amp), IC410 (Melody IC), Q407~Q410 (transistor), JK401~JK404

(pin jack) etc.
Function: The external music on hold 1 is input from JK404 and is A/D converted in IC405 via AGC (Auto Gain Control)

circuit, which consists of IC408, Q407, Q409 and other CR, and then is connected to the call line HW. Likewise the external
music on hold 2 is input from JK403 and is made A/D conversion in IC406 via AGC (Auto Gain Control) circuit, which
consists of IC409, Q408, Q410 and other CR, and then is connected to the call line HW. The external music on hold 2 and
IC410 is exclusively connected to IC406 input (by software control).

The various tones & DTMF tone and the voice data generated in IC102 (ASIC) are made D/A conversion in IC405 and
IC406. They are output via JK402, JK401 respectively.

· Power Supply block
Configuration: IC402 (DC/DC converter), IC403 (1.8V regulator), IC404 (1.9V regulator), IC411 (OP Amp), IC413 (negative

power regulator), Q403, Q404, Q405, Q411, Q412 (transistor), L401, C408, C453, C454, D406~D409, BAT401, IP401,
IP402 (circuit protection device) and so on.

Function:
+15V input is made step-down to +3.3V by DC/DC converter circuit that consists of IC402, L401, Q412 and C408, and is

supplied to each IC power. Also, it monitors +3.3V output voltage and turns ON Q411 to block +15V input when over voltage
is supplied.

+15V input is dropped to +9.4V by Q403 and is supplied to RS232C driver with the inverted voltage (about 9.1V) generated
in IC413, C453 and C454.

+3.3V generated in DC/DC converter is converted to 1.8V in the back board or IC403 and Q405 via Q404 and supplied to
IC101 core power, and also is converted to 1.9V in IC404 via the back-flow prevention diode D407 and supplied to IC101

KX-TDA100BX

29