Panasonic KX-TS580MXB User manual

© Panasonic Communications Co., Ltd. 2008. Unau-
thorized copying and distribution is a violation of law.
ORDER NO. KM40809707CE
Telephone Equipment
Model No. KX-TS580MXB
KX-TS580MXW
KX-TS580MXR
KX-TS580MXC
KX-TS580MXJ
Integrated Telephone System
Black Version
White Version
Red Version
Blue Version
Ivory Version
(for Asia, Middle Near East and other areas)

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TABLE OF CONTENTS
PAGE
1 Safety Precautions----------------------------------------------- 4
1.1. For Service Technicians --------------------------------- 4
2 Warning -------------------------------------------------------------- 4
2.1. Battery Caution--------------------------------------------- 4
2.2. About Lead Free Solder (PbF: Pb free)-------------- 4
2.3. Discarding of P.C. Board--------------------------------- 5
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
4.1. Block Diagram---------------------------------------------- 7
4.2. Circuit Operation------------------------------------------- 8
5 Location of Controls and Components ------------------12
5.1. Location of Controls--------------------------------------12
5.2. Display ------------------------------------------------------12
6 Installation Instructions ---------------------------------------13
6.1. Connections------------------------------------------------13
6.2. Connecting a Communication Device ---------------13
6.3. Battery-------------------------------------------------------14
7 Operating Instructions-----------------------------------------15
7.1. Programmable Settings ---------------------------------15
7.2. Dial Lock ----------------------------------------------------16
7.3. Call Restriction --------------------------------------------16
7.4. Troubleshooting -------------------------------------------17
8 Troubleshooting Guide ----------------------------------------19
8.1. Service Hints-----------------------------------------------19
8.2. Pulse Dialing Problems ---------------------------------19
8.3. Tone Dialing Problems (handset)---------------------20
8.4. No Ringing Sound When Ring Signal is Input ----20
9 Disassembly and Assembly Instructions ---------------21
9.1. Disassembly Instructions -------------------------------21
10 Miscellaneous ----------------------------------------------------23
10.1. IC Block diagram -----------------------------------------23
10.2. How to Replace the Flat Package IC----------------30
10.3. Terminal Guide of the ICs, Transistors and
Diodes -------------------------------------------------------32
11 Schematic Diagram ---------------------------------------------33
11.1. For Schematic Diagram---------------------------------33
11.2. Schematic Diagram (Main)-----------------------------34
11.3. Schematic Diagram (Operation) ----------------------36
12 Printed Circuit Board-------------------------------------------39
12.1. Circuit Board (Main)--------------------------------------39
12.2. Circuit Board (Operation) -------------------------------41
13 Exploded View and Replacement Parts List -----------43
13.1. Cabinet and Electrical Parts ---------------------------43
13.2. Accessories and Packing Materials------------------44
13.3. Replacement Part List-----------------------------------45

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1 Safety Precautions
1.1. For Service Technicians
•Repair service shall be provided in accordance with repair technology information such as service manual so as to pre-
vent 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.
2Warning
2.1. Battery Caution
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.
2.2. About Lead Free Solder (PbF: Pb free)
Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that con-
tains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),
Silver (Ag), and Copper (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder 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 temper-
ature 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).

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2.2.1. 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 manufacturer’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.
2.3. Discarding of P.C. Board
When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

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3 Specifications
Note:
• Design and specification are subject to change without notice.
• Specifications are subject to change without notice.
Important:
*: Some functions may not work properly without batteries, Refer to the Operating Instructions for details.

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4 Technical Descriptions
4.1. Block Diagram
D3, D5 C1
D1
PC1 R1
IC1 D4, D6
Handset Q107 Q101, Q103 D101
T
T1
SP
R
MIC
SP-Phone
IC601
SP
D302
MIC
D301
IC301 IC302
4.5V
IC851
R558, C558
Battery
IC303
IC501, Q502
LCD
KX-TS580 : BLOCK DIAGRAM
Q401, Q402, Q403
Q422
IC801
MICON
Ringer indication LED
LED1 (2AP)
JOHN SMITH
1234567890
RINGER
IC
PGAIN2
Line
ON/OFF
Handset
Receiving
Amp
EEPROM
TIPIN
Sidetone
Bridge
RESET
BATTLOW
Reset IC
Handset
Sending
Amp
Keyboard
Switch
RINGIN
Battery Low
Detector
Regulator
3.3 V
FSK / DTMF Circuit
Wakeup Circuit
WAKEUP
RING_DET
SP-Phone
Circuit
(2AP)
Call-Waiting
Circuit

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4.2. Circuit Operation
4.2.1. Bell Detector Circuit
When the bell signal is input between T/R, the signal are outputted at the speaker via the following path:
T / R →R1 / C1 →D1 / LED1(2AP) →IC1 (pin1) →IC1 (pin8) →PC1 →C5 →SW1 →T1 →Speaker
4.2.2. Line Interface
In talk status, SW101 become ON and Q103 base changes to high level, causing Q103, Q101 to turn on and resulting in a line
loop. The loop current flows from D101(+) →Q101 →Q107 →R119 →D103 in that order. A pulse signal that repeated
switches between high and low logic is output from pin 73 of the CPU. This switches the line loop on and off, generating the dial
pulse signal.
4.2.3. Telephone Line Interface
4.2.3.1. Circuit operation
•On hook
Q101 is OFF, on-hook condition where DC loop is disconnected and voice signal flow is cut.
•Off hook
Q101 is ON*, providing an off-hook condition (active DC current flow through the circuit) and the following is the signal flow:
T →POS101 →L101 →D101(+) →Q101 →Q107 →R119 →D103 →D101(-) →L102 →R
* Handset mode : SW101 ON after handset off-hook
* SP-Phone mode : IC801 (pin 70) output high logic after pressing SP-Phone button.
•The receiving signal flows:
LINE →Q101 →C109 →C401 →R401 →Q401 →Q402 →Q403 →SP (handset)
•The transmission signal flows
MIC (handset) →Q422 →R433 →C432 →Q107 →Q101 →LINE
4.2.3.2. Tone Detect
This circuit is used to sense the status of the line (busy tone or dial tone) during Auto Redial.
4.2.3.2.1. Circuit operation
D101 →Q101 →C201 →R201 →R205 →Pin 5 of IC201 →Pin 1 of IC201 →D202 →R208 →Q201 →Pin 87 of IC801.
When the subscriber hangs-up, check the intermittent tone. If cycle tone is detected, the collector of Q201 goes to a low logic.

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4.2.3.3. Speakerphone Circuit
4.2.3.3.1. Function
The circuit controls the automatic switching of the transmitted and received signals, to and from the telephone line, when the
unit is used in the hands -free mode.
4.2.3.3.2. Circuit Operation
The speakerphone can only provide a one-way communication path.
In other words, it can either transmit an outgoing signal or receive an incoming signal at a given time, but cannot do both simul-
taneously. Therefore, a switching circuit is necessary to control the flow of the outgoing and incoming signals.
This switching circuit is contained in IC601 and consists of a Voice Detector, TX Attenuator, RX Attenuator, Comparator and
Attenuator Control. The circuit analyzes whether the TX(transmit) or the RX(receive) signal is louder, and then it processed the
signals such that the louder signal is given precedence.
The Voice Detector provides a DC input to the Attenuator Control corresponding to the TX signal.
The Comparator receives a TX and a RX signal, and supplies a DC input to the Attenuator Control corresponding to the RX sig-
nal.
The Attenuator Control provides a control signal to the TX and the RX attenuator to switch the appropriate signals on and off.
The Attenuator Control also detects the level of the volume control to automatically adjust for changing ambient conditions.
1. Transmission signal path:
The input signal from the microphone is sent through the circuit via the following path:MIC →Pin 9 of IC601 →Pin 10 of
IC601 →Pin 3 of IC601 →Pin 4 of IC601 →R601 →C602 →Q107 →Tel line.
2. Reception signal path:
Signals receive from the telephone line are outputted at the speaker via the following path:Tel line →Q107 →C401 →Q401
→R600 →C603 →Pin 27 of IC601 →Pin 26 of IC601 →Pin 19 of IC601 →Pin 15 of IC601 →Speaker.
3. Transmission/Reception switching
The comparison result between TX and RX outputs as a DC level of Pin 25 of IC601.TX level is high ...... Pin 25 = Pin 21 -
6mV RX level is high ...... Pin 25 = Pin 21 - 150mVComparator output is connected to the attenuator control inside of IC601.
4. Voice detector
The output of the mic amp (Pin 10 of IC601) is supplied to Pin 13 of IC601 as a control signal for the voice detector.
5. Attenuator control
The attenuator control detects the setting of the volume control through Pin 24 of IC601 to automatically adjust for changing
ambient conditions.
4.2.3.4. Initializing Circuit
4.2.3.4.1. Function
This circuit is used to initialize the CPU when the batteries are installed.

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4.2.3.4.2. Circuit operation
When the batteries are inserted into the unit, then the voltage is regulated by IC302 and power is supplied to the CPU. The unit
starts operating soon after the voltage goes beyond point A in the voltage diagram.

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4.2.4. Caller ID Detect Circuit
4.2.4.1. Function (FSK signal)
The caller ID is a chargeable ID which the user of a telephone circuit obtains by entering a contract with the telephone company
to utilize a caller ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been
entered for the circuit being used.
The Caller-ID data from exchange is supplied to the telephone using the method of FSK and displayed on LCD of the unit.
•FSK (Frequency Shift Keying) format
4.2.4.2. Circuit operation
Caller ID
Caller ID signal is sent through the circuit via the following path:
LINE →C501/C502 →C551/C552 →R551/R552 →R553/R554 →IC801 (pin 92, 93)

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5 Location of Controls and
Components
5.1. Location of Controls
5.2. Display
Cross Reference:
Battery Installation and Replacement (P.14)

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6 Installation Instructions
6.1. Connections
6.2. Connecting a Communication Device

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6.3. Battery
6.3.1. Battery Installation and Replacement

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7 Operating Instructions
7.1. Programmable Settings

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7.2. Dial Lock
7.3. Call Restriction

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7.4. Troubleshooting

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Cross Reference:
Call Restriction (P.16)
Dial Lock (P.16)

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8 Troubleshooting Guide
Make sure batteries are installed for proper operation before troubleshooting.
8.1. Service Hints
8.2. Pulse Dialing Problems

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8.3. Tone Dialing Problems (handset)
8.4. No Ringing Sound When Ring Signal is Input