Telefone Toshiba Ft- 8259

FILE NO. 2B0-9906

SERVICE MANUAL

CORDLESS TELEPHONE

FT-8259

PUBLISHED IN JAPAN, Sep., 1999

CONTENTS SAFETY PRECAUTIONS ............................................................................................................ 1 OPERATING CONTROLS ........................................................................................................... 2 ALIGNMENT PROCEDURE ........................................................................................................ 3 BLOCK DIAGRAMS ..................................................................................................................... 7 SCHEMATIC DIAGRAMS ............................................................................................................ 9 TROUBLESHOOTING HINTS ................................................................................................... 14 IC AND TRANSISTOR VOLTAGE CHART ............................................................................... 23 SEMICONDUCTOR LEAD IDENTIFICATION ........................................................................... 29 ELECTRICAL PARTS LOCATION ............................................................................................. 32 WIRING DIAGRAMS ................................................................................................................. 35 EXPLODED VIEW AND MECHANICAL PARTS LIST............................................................... 38 PARTS LIST ............................................................................................................................... 42 ASSEMBLY PARTS LIST .......................................................................................................... 58 SPECIFICATIONS ..................................................................................................................... 59

SAFETY PRECAUTIONS Before returning any models to the customer, a safety check of the entire instrument should be made. The service technician must be sure that no protective device built into the instrument by the manufacture has become defective or inadvertently degraded during servicing.

1.WARNING: Alterations of the design or circuitry of these models should not be made. Any design changes or additions such as, but not limited to, circuit modifications, auxiliary speaker jacks, switches, grounding, active or passive circuitry, etc. may alter the safety characteristics of these models and potentially create a hazardous situation for the user. Any design alterations or additions will void the manufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.

2.PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are indentified by a in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards. 1

OPERATING CONTROLS HANDSET CONTROLS AND FUNCTIONS ANTENNA

LINE 2 LED (Orange) LINE 1 LED (Green) TALK/BATT LOW LED (Red)

SPEED DIAL INDEX TALK

LINE 1 button LINE 2 button

2LINE

900MHz

TALK button

LINE1

LINE2

BATT LOW

SPEED DIAL INDEX

TALK

TONE button FLASH/RDL (Flash/Redial) button PAUSE button • While the handset is engaged in a call on an outside line, pressing the MEM and PAUSE buttons continuously prevents someone from picking up your conversation on the base unit.

LINE1

1

DEF

3

4

JKL

5

MNO

6

7

TUV

8

WX YZ

9

GHI

PQ RS

2

ABC

Dialpad (0~9, and # buttons) INTCOM button CH (Channel) button VOL/RING (Volume/Ringer volume)button

LINE2

TONE OPER

FLASH/RDL INTCOM

MEM

PAUSE

0 CH

VOL/RING

CONF

HOLD

1

2

3

4

5

6

7

8

9

0

OPEN

Battery compartment

1-PRIVACY-2

HOLD button CONF (Conference) button

MEM (Memory) button

Charging Contacts

BASE UNIT CONTROLS AND FUNCTIONS DC in 9V Jack TEL LINE 2 jack TEL LINE 1/2 jack

T-P(TONE-PULSE) Switch Line 1 ringer volume switch Line 2 ringer volume switch

MEM (Memory) button PAUSE button

900MHz 2 LINE CORDLESS TELEPHONE FT8259

One-touch dialing keys (1 to 8)

• While the base unit is engaged in a call on an outside line, pressing the MEM and PAUSE buttons continuously prevents someone from picking up your conversation on the handset.

MUTE button

TONE button FLASH/RDL (Flash/Redial) button

MEM

1

ABC

2

DEF

3

1

GHI

4

JKL

5

MNO

6

2

PQ RS

7

TUV

8

WX YZ

9

PRIVACY

ANTENNA INTCOM LED (Green) INTCOM button

PAUSE

MUTE

LINE 2 LED (Orange)

Speaker

SPEED DIAL INDEX

TONE INTCOM

LINE 1 LED (Green)

0

OPER

FLASH/RDL

CONF

LINE1

HOLD

LINE2

LINE 1 button LINE 2 button

SPEAKER

Speaker volume control HOLD button CONF (Conference) button

900MHz 2 LINE CHARGE

POWER

CHARGE LED POWER LED

SPEAKER LED (Green) SPEAKER button Microphone

2

ALIGNMENT PROCEDURE Base Unit Transmitter Section

Power Meter

RF Test Point

BASE Unit J4 DC IN 9V Jack

Connections Frequency Counter

RF Test Point

AF GEN.

J1 TEL Line 1kHz 77.5mV Jack

AC Adapter

Deviation Mater

AC 120V 60Hz

Preset a) Connect the base RF unit to the base main unit. b) Connect the AC adapter to the base unit while pressing the “ ∗ ” and “ # “ keys and keep pressing it continuously for approximate 1 second. c) Release the keys when entering TEST mode with beep. d) Press “1” key to enter the TEST mode 1.

Alignment Procedure step 1 2

3

Adjustment

Remarks

RT301 (TX Power) CT1 (TX Frequency)

Connect the Power Meter to the RF test point on the Base MAIN PCB. Adjust RT301 for a -5.0dBm reading on the Power Meter. Connect the Frequency Counter to the RF test point on the Base MAIN PCB. Adjust CT1 to make sure that the frequency is 926.897468 MHz. Press the “2” key to enter the TEST Mode 2. Connect the AF Generator to the TEL Line Jack on the Base Main PCB. Make sure that the output is 1 kHz 77.5 mV from the AF Generator. Connect the Deviation Meter to the RF test point on the Base MAIN PCB. Adjust RT2 to indicate ±8 kHz Dev.

RT2 (TX Modulation)

Alignment Point Location on Base Main PCB and Base RF PCB Base Main PCB J1 TEL LINE Jack

J4 DC IN 9V Jack T S1 T/P Switch P

Base RF PCB RF Test Point

3

Receiver Section Connections BASE Unit

RF SG -

J1 TEL Line Jack

RF Test Point

+ J4 DC IN 9V Jack AC 120V 60Hz

AC Voltmeter Dummy Load (600-ohm) +

AF Terminal

DC Voltmeter

AC Adapter

Preset a) Connect the base RF unit to the base main unit. b) Connect the AC adapter to the base unit while pressing the “ ∗ ” and “ # “ keys and keep pressing it continuously for approximate 1 second. c) Release the keys when entering TEST mode with beep.

Alignment Procedure step

1

2

3

Preset to

Adjustment

Remarks

Press the “4” key to enter the TEST Mode 4. Connect the RF Signal L183 Generator to the RF test point on the Base MAIN PCB. Make sure that the SG: 1mV (Discriminator frequency is 903.002467 MHz. No modulation Voltage) Connect the DC Voltmeter to the AF test point. Adjust L183 to indicate DC 0.95 V. SG: 1mV RT1 Connect the AC Voltmeter across a 600-ohm dummy to the Telephone Line 1 kHz ±8kHz (RX AF Jack. Adjust RT1 for a 220 mV reading on the AC voltmeter. deviation Voltage) Press the “5” key to enter the TEST Mode 5. Make sure that the SG: -7.0 dBµ µV RT181 frequency of RF SG output is 903.002467 MHz. Adjust RT181 to turn to 1kHz ±8kHz (SQ Point) the point where the INTCOM LED just turns on. Deviation

Alignment Point Location on Base Main PCB and Base RF PCB Base Main PCB J1 TEL LINE Jack

J4 DC IN 9V Jack T S1 T/P Switch P

RF Test Point

AF Test Point

4

Handset Unit Transmitter Section Connection Power Meter

Frequency Counter

RF Test Point

RF Test Point

HANDSET Unit J603 Battery Connector

AF GEN.

MIC+Pin

1kHz 11mV

DC Power Supply

Deviation Mater

DC 3.8V

Preset a) Connect the handseet RF unit to the handset main unit. b) Connect DC power supply to battery connector on the handset unit. c) Turn the DC power supply On while pressing " * " and " # " keys, and keep pressing the keys continuously for approximate 1 second. d) Release keys when entering TEST mode 1 with TALK LED and LINE2 LED lighting and beep.

Alignment Procedure step 1 2

3

Adjustment

Remarks

RT501 (TX Power) CT601 (TX Frequency)

Connect the RF power Meter to the RF test point on the handset MAIN PCB. Adjust RT501 for a -6.5dBm reading on the Power Meter. Connect the Frequency Counter to the RF test point on the handset MAIN PCB. Adjust CT601 to make sure that the frequency is 903.102467 MHz. Press the “2” key to enter the TEST Mode 2. Connect the AF Generator to the MIC Connector. Make sure that the output is 1kHz 11mV from the AF Generator. Connect the Deviation Meter to the RF test point on the handset MAIN PCB. Adjust RT603 to indicate ±8 kHz Dev.

RT603 (TX Modulation)

Alignment Point Location on Handset Main PCB and Handset RF PCB RF Test Point

Handset PCB

RF PCB

5

Receiver Section Connections HANDSET Unit

RF SG -

RF Test Point

+ DC Power Supply

AC Voltmeter Dummy Load (150-ohm)

SP Terminal

J603 Battery Connector

+

AF Test Point

DC Voltmeter

DC 3.8V

Preset a) Connect the handset RF unit to the handset main unit. b) Connect DC power supply to battery connector on the handset unit. c) Turn the DC power supply ON while pressing “ * ” and “ # ” keys, and keep pressing the keys continuously for approximate 1 second. d) Release keys when entering TEST mode 1 with TALK LED and LINE2 LED lighting and beep.

Alignment Procedure step

1

2

3

Preset to

Adjustment

Remarks

Press the “4” key to enter the TEST Mode 4. Connect the RF Singal Generator to the RF test point on the handset MAIN PCB. Make sure that L603 SG: 1mV (Discriminator the frequency is 926.997467 MHz. No modulation Voltage) Connect the DC Voltmeter to the AF test point. Adjust L603 to indicate DC 0.85V. Connect the RF Signal Generator to the RF test point on the handset MAIN SG: 1mV RT602 PCB. Make sure that the frequency is 926.997467 MHz. 1 kHz ±8kHz (RX AF Connect the AC Voltmeter across a 150-ohm dummy to the SP Connector. deviation Voltage) Adjust RT602 for a 150 mV reading on the AC Voltmeter. SG: -7.0 dBµ Press the “5” key to enter the TEST Mode 5. Make sure that the frequency µV RT601 1kHz ±8kHz of RF SG output is 926.997467 MHz. Adjust RT601 to turn to the point (SQ Point) Deviation where the LINE1 LED just turns on.

Alignment Point Location on Handset Main PCB and Handset RF PCB Handset PCB

AF Test Point

RF Test Point

RF PCB

6

BLOCK DIAGRAMS Base Unit

7

Handset

8

SCHEMATIC DIAGRAMS Base Unit, Main

9

10

Base Unit, Key

11

Handset

12

13

TROUBLESHOOTING HINTS 1. The bell does not ring. When the INTCOM key of the base is pressed, does the ringer on the handset ring?

NG

See 2. The bell does not ring & page does not ring.

NG

Check IC5 (Line1) or IC13 (Line2) and TEL network circuit.

OK

When the TEL SG is joined with the base to make bell signal, is there pulse wave at pin 4 of IC5 (Line1) or IC13 (Line2) ? OK

I s t h e r e p u l s e wave a t NG pin 38 (Line1) or pin 39 (Line2) of IC14?

Check R58, C45 and R59.

OK

Check IC14 and its peripheral circuit.

14

2. The bell does not ring & page does not ring. Can the base and handset be connected?

NG

See 3. The base and handset cannot be connected.

NG

When the key of the handset is NG pressed, can the pulse output at pin 58 of IC603 be seen?

OK

Press handset DIAL key while in TALK MODE. Can key touch sound be heard from the ringer?

Check IC603.

OK

OK

At the Q605 collector, can the NG pulse wave be seen? OK

Check RINGER Y601.

When the INTCOM key of the base is pressed, does pin 29 of IC14 change from low to high?

NG Check key rubber.

OK

Check IC14 and its peripheral circuit.

15

Check R688, R627 and D604.

3. The base and handset cannot be connected. Check whether the base NG is able to set in the test mode 1.

Check IC14 and its peripheral circuit.

OK Check the TX POWER NG and the TX FREQUENCY on the base unit.

Check base RF unit.

OK Set the base in the test NG mode 3, check whether deviation of the TX data is app. 8 kHz Dev.

Check whether there is a NG 250 Hz data waveform at “MOD” of RF unit.

Check RT2, R69, R70, R71, R72, R115, C56 and C84.

OK

OK Check base RF unit.

Set the base in the test NG mode 8, 903.002467 MHz (250 Hz ±8 kHz Dev.) 1mV output signal from RF jack is applied. Can the INTCOM LED be lighted?

Check whether there is a NG 250 Hz data waveform at pin 9 of IC181.

OK

Check whether there is a NG 250 Hz data waveform at the Q3 collector.

Check IC181, Q181 and NG their peripheral circuit. OK

OK

Check RT1, Q3 and their peripheral circuit.

OK Check whether there is a NG 250 Hz data waveform at pin 54 of IC14. OK Check IC14 and its peripheral circuit.

Check whether the NG handset is able to set in the test mode 1.

Check IC603 and its peripheral circuit.

OK Check the TX POWER NG and the TX FREQUENCY on the handset unit.

Check handset RF unit.

OK A

16

Check R261, IC4 and their peripheral circuit.

Check base RF unit.

A

Set the handset in the NG test mode 3, check whether deviation of the TX data is app. 8 kHz Dev.

Check whether there is a NG 250 Hz data waveform at “MOD” of RF unit.

Check RT603, R619, R632, R634, R635, R636 and C610.

OK Check handset RF unit.

OK Set the handset in the NG test mode 6, 926.997467 MHz (250 Hz ±8 kHz Dev.) 1mV output signal from RF jack is applied. Check whether the bell ring.

Check whether the 250 NG Hz data waveform from pin 9 of IC606 is fed.

OK

Check whether there is a NG 250 Hz data waveform at the Q601 collector.

Place the handset on the base to charge about 5 seconds, then connect again.

Check IC606, Q612 and NG their peripheral circuit. OK

OK

Check RT602, Q601 and their peripheral circuit.

OK Check whether there is a NG 250 Hz data waveform at pin 55 of IC603. OK Check IC603 and its peripheral circuit.

17

Check R696, R600, R621, R624, Q602, IC607 and their peripheral circuit.

Check handset RF unit.

4. Cannot make a phone call (pulse). Can the base and handset be connected?

NG

See 3. The base and handset cannot be connected.

OK While in TALK MODE, press NG dial key of the handset. Check whether square waveform from pin 89 (Line1) or pin 90 (Line2) of IC14 is fed.

Check IC5.

OK Check Q4, RL1, R58 (Line1) or Q12, RL2, R126 (Line2) and their peripheral circuits.

5. Cannot make a phone call (tone). Can the base and handset be connected?

NG

See 3. The base and handset be cannot be connected.

OK While in TALK MODE, press dial key of the handset. Can tone waveform from Pin 14 of IC11 is fed?

NG

Check IC5 and IC14.

OK Can tone signal be heard from the handset speaker? OK

NG

Check IC4, IC2, IC3, Q2 (Line1) or IC8, IC9, Q10 (Line2) and their peripheral circuits.

Check the base TEL-line circuit and RELAY control circuit.

18

6. Voice cannot be transmitted to other party (outgoing call). Can the base and handset be connected?

NG

See 3. The base and handset cannot be connected.

NG

Check Q608 and its peripheral circuit.

NG

Check IC607 and its peripheral circuit.

NG

Check RT403 and its peripheral circuit.

OK The 1 kHz, 11mV sine wavefor m i s a p p l i e d t o MC601 + side, can the 1 kHz sine waveform from pin 24 of IC607 be fed? OK Check whether there is the 1 kHz sine wavefor m at pin 20 of IC607. OK Check whether there is the 1 kHz sine wavefor m at MOD terminal. OK TX output signal from the handset is detected by the liner detector, can the 1 kHz sine waveform be fed?

NG

Check handset RF unit.

OK Check whether there is the 1 kHz sine waveform at pin 9 of IC181 on the base unit.

NG

Check IC181, Q181 and their peripheral circuit. OK

OK Check whether there is the 1 kHz sine waveform at pin 3 of IC4.

NG

Check RT1, Q3 and their peripheral circuits.

NG

Check IC4 and its peripheral circuit.

NG

Check IC2, IC3, Q2 (Line1) or IC6, IC9, Q10 (Line2) and its peripheral circuit.

NG

Check T1, RL1 (Line1) or T2, RL2 (Line2) and their peripheral circuits.

OK Check whether there is the 1 kHz sine wavefor m at pin 6 of IC4. OK Check whether there is the 1 kHz sine waveform at the Q2 (Line1) or Q10 (Line2) collector. OK Check whether the 1 kHz sine wavefor m from TEL-line output is fed. OK Check MC601 of handset.

19

NG

Check base RF unit.

7. The voice of the caller cannot be heard (incoming call). Can the base and handset be connected?

NG

See 3. The base and handset cannot be connected.

OK The 1 kHz, 77.5mV sine waveform is applied to TELline of the base, can the 1 kHz sine waveform from the Q2 (Line1) or Q10 (Line2) collector be fed?

NG

Check the base TEL-line circuit and REPLAY control circuit.

OK Check whether there is the 1 kHz sine wavefor m at pin 24 of IC4.

NG

Check IC7 and IC3, IC6 (Line1) or IC9, IC6 (Line2) and its peripheral circuit.

NG

Check IC4 and its peripheral circuit.

NG

Check RT2 and its peripheral circuit.

OK Check whether there is the 1 kHz sine wavefor m at pin 20 of IC4. OK Check whether there is the 1 kHz sine wavefor m at “MOD” RF unit. OK TX output signal from the base is detected by the liner detector, can the 1 kHz sine waveform be fed?

NG

Check base RF unit.

OK Check whether there is the 1 kHz sine waveform at pin 9 of IC606 on the handset unit.

NG

Check IC606, Q612 and their peripheral circuit. OK

OK Check whether there is the 1 kHz sine waveform at pin 3 of IC607.

NG

Check RT602, Q601 and their peripheral circuits.

NG

Check IC607 and its peripheral circuit.

NG

Check Q603, Q614 and its peripheral circuit.

OK Check whether there is the 1 kHz sine waveform at the pin 18 of IC607. OK Check whether there is the 1 kHz sine waveform at pin 1, 2 of SP801. OK Check SP801 and W801, W802.

20

NG

Check handset RF unit.

8. Trouble with intercom mode. 8-1. The voice from the Base unit cannot be heard on the Handset. Check whether there is an NG audio waveform on pin 4 of IC17.

Check MC1 and IC17.

OK

Check pin 8 of IC15.

8-2. The voice from the Handset cannot be heard on the Base unit. Check whether there is an audio waveform on pin 4 of IC15.

NG

Check IC15.

OK Check whether there is an audio waveform on pin 15 of IC17.

NG

Check IC7, IC8, IC17 and their peripheral circuits.

OK Check FC451, W451, W452 and SP451.

21

9. Trouble with speakerphone mode. 9-1. The voice of the caller cannot be heard (INCOMING CALL). Check whether there is an NG audio waveform on pin 11 of IC8 (Line1) or pin1 of IC15 (Line2).

Check IC8 (Line1) or IC15 (Line2).

OK Check whether there is an NG audio waveform on pin 1 of IC7.

Check IC7.

OK Check whether there is an NG audio waveform on pin 15 of IC17.

Check IC7, IC8, IC17 and their peripheral circuits.

OK Check FC451, W451, W452 and SP451.

9-2. Voice cannot be transmitted to the calling party (OUTGOING CALL). Check whether there is an audio waveform on pin 4 of IC17.

NG

Check MC1 and IC17.

OK Check whether there is an audio waveform on pin 2 of IC2 (Line1) or pin 3 of IC8 (Line2).

NG

Check IC2 (Line1) or IC8 (Line2).

NG

Check IC3 (Line1) or IC9 (Line2).

OK Check whether there is an audio waveform on pin 7 of IC3 (Line1) or pin 1 of IC9 (Line2). OK Check Q2, T1, RL1and Q4 (Line1) or Q10, T2, RL2 and Q12 (Line2).

22

IC AND TRANSISTOR VOLTAGE CHART Base Unit Ref. No. PIN 1 2 3 4 5 6 IC2 7 8 9 10 11 12 13 14 1 2 3 IC3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 IC4 10 11 12 13 14 15 16 17 18 19 20 21

Unit[V] STBY 2.4 0.0 0.0 5.0 0.0 0.0 0.0 5.0 0.0 2.0 0.0 0.0 0.0 5.0 2.0 2.0 2.0 0.0 2.0 2.0 2.0 5.0 2.7 2.7 2.5 0.7 2.5 2.5 2.7 4.9 0.0 0.2-4.9 0.0 2.5 5.0 2.5 2.5 0.0 0.0 0.0 1.6 2.5 0.7

TALK 2.4 0.0 2.4 2.5 5.0 0.0 0.0 5.0 0.0 2.0 0.0 0.0 0.0 5.0 2.0 2.0 2.0 0.0 2.0 2.0 2.0 5.0 2.7 2.7 2.5 0.7 2.5 2.5 2.7 4.9 0.0 0.2-4.9 0.0 2.5 5.0 2.5 2.5 5.0 5.0 4.8 1.6 2.5 0.7

Unit[V]

NOTE

Ref. No. PIN 22 IC4 23 24 1 IC5 2 3 4 1 2 3 4 5 6 IC6 7 8 9 10 11 12 13 14 1 2 3 IC7 4 5 6 7 8 1 2 3 4 5 6 IC8 7 8 9 10 11 12 13 14

GND

VCC

GND

VCC

OPEN

OPEN GND PULSE GND VCC OPEN

OPEN OPEN

23

STBY 2.5 2.5 2.5 1.0 1.0 0.0 4.9 2.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 2.0 0.0 5.0 0.0 0.0 5.0 2.0 2.0 2.0 0.0 2.0 2.0 2.0 5.0 0.0 5.0 0.0 2.4 0.0 0.0 0.0 0.0 2.3 2.0 0.0 0.0 0.0 5.0

TALK 2.5 2.5 2.5 0.6 0.6 0.0 4.9 2.0 1.9 0.0 2.0 0.0 0.0 0.0 0.0 2.0 0.0 5.0 0.0 5.0 5.0 2.0 2.0 2.0 0.0 2.0 2.0 2.0 5.0 0.0 5.0 0.0 2.4 0.0 0.0 0.0 0.0 2.3 2.0 0.0 0.0 0.0 5.0

NOTE

GND

GND

VCC

GND

VCC

GND

VCC

Unit[V] Ref. No. PIN 1 2 3 IC9 4 5 6 7 8 1 IC10 2 3 1 2 3 4 5 6 IC11 7 8 9 10 11 12 13 14 1 2 3 IC12 4 5 6 7 8 1 IC13 2 3 4 1 2 3 IC14 4 5 6 7

STBY 2.0 2.0 2.0 0.0 2.0 2.0 2.0 5.0 5.0 5.0 0.0 5.0 0.0 5.0 5.0 0.0 5.0 4.5 0.0 0.0 0.0 0.0 0.0 0.0 5.0 2.5 2.5 2.2 0.0 2.2 2.5 2.5 5.0 1.0 1.0 0.0 4.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0

TALK 2.0 2.0 2.0 0.0 2.0 2.0 2.0 5.0 5.0 5.0 0.0 5.0 0.0 5.0 5.0 0.0 5.0 4.5 0.0 0.0 0.0 0.0 0.0 0.0 5.0 2.5 1.3 1.1 0.0 2.2 2.5 2.5 5.0 1.0 1.0 0.0 4.9 0.0 0.0 0.0 5.0 0.0 0.0 0.0

Unit[V]

NOTE

Ref. No. PIN 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 IC14 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

GND

VCC VCC GND VCC VCC VCC GND

OPEN

GND

GND

VCC

GND

GND

24

STBY 0.0 0.0 0.0 0.0 0.0 0.0 0.0-3.0 3.0-0.0 3.0-0.0 0.0-3.0 0.0 0.0 1.0 5.0 5.0 0.0 0.0 4.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0

TALK 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 3.0 0.0 0.0 0.0 1.0 5.0 5.0 0.0 0.0 4.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0

NOTE OPEN OPEN OPEN OPEN OPEN OPEN PULSE / -PULSE / -PULSE / -PULSE / -GND

OPEN OPEN

GND

GND

Unit[V] Ref. No. PIN 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 IC14 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95

STBY 0.0 4.8 0.1-4.9 0.0 0.0 5.0 5.0 0.0 5.0 5.0 5.0 5.0 5.0 5.0 2.2Vp-p 1Vp-p 0.0 4.1Vp-p 0.0 0.0 0.0 0.2 0.2 0.2 5.0 5.0 5.0 5.0 5.0 5.0 2.5 2.5 2.5 2.5 2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

TALK 0.0 0.0 0.1-4.9 5.0 5.0 5.0 5.0 0.0 5.0 5.0 5.0 5.0 5.0 5.0 2.2Vp-p 1Vp-p 0.0 4.1Vp-p 0.0 0.0 0.0 0.2 0.2 0.2 5.0 5.0 5.0 5.0 5.0 5.0 2.5 2.5 2.5 2.5 2.5 0.0 0.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0

Unit[V]

NOTE SQ PULSE

OPEN

VCC VCC VCC SINE WAVE SINE WAVE GND OPEN(SIN) OPEN OPEN OPEN

AVCC VREF

GND GND

25

Ref. No. PIN 96 97 IC14 98 99 100 1 2 3 4 5 6 IC15 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 IC17 13 14 15 16 17 18 19 20 21 22 23 24 25

STBY 0.0 0.0 5.0 0.0 0.0 0.0 2.0 5.0 0.0 0.0 0.0 0.0 0.0 2.4 5.0 0.0 0.0 0.0 5.0 2.2 0.0 1.5 2.4 3.0 2.8 3.0 2.8 3.0 2.8 2.5 2.7 3.0 0.0 3.2 7.5 1.5 0.0 0.0 5.5 3.0 0.0 0.0 2.7 5.4

TALK 0.0 0.0 5.0 0.0 0.0 0.0 2.0 5.0 0.0 0.0 0.0 0.0 0.0 2.4 5.0 0.0 0.0 0.0 5.0 2.2 2.2 1.5 2.4 3.0 2.8 3.0 2.8 3.0 2.8 2.5 2.7 3.0 0.0 3.2 7.5 1.3 0.0 0.0 5.5 2.9 0.0 0.0-3.8 2.7 5.4

NOTE

VCC OPEN OPEN

GND

VCC

GND VCC GND

GND /

Unit[V] Ref. No. PIN 26 IC17 27 28 1 2 IC18 3 4 5 1 2 3 4 5 6 7 IC181 8 9 10 11 12 13 14 15 16 E Q2 C B E Q3 C B E Q4 C B E Q5 C B E Q6 C B E Q7 C B

STBY 2.4 1.6 2.2 5.7 0.0 1.3 3.0 5.7 1Vp-p 0.5Vp-p 4.4 5.0 4.5 4.5 4.5 5.0 2.0 0.7 0.7 0.7 4.8 0.0 0.0 5.0 0.8 3.4 1.5 0.7 2.7 1.3 0.0 9.0 0.0 0.0 2.5 0.0 0.0 2.5 0.0 3.0 0.0 3.0

TALK 2.3 1.5 2.2 5.7 0.0 1.3 3.0 5.7 1Vp-p 0.5Vp-p 4.4 5.0 4.5 4.5 4.5 5.0 2.0 0.7 0.7 0.7 4.8 0.0 0.0 5.0 0.8 3.4 1.5 0.7 2.7 1.3 0.0 0.0 0.7 0.0 0.0 0.7 0.0 0.0 0.7 3.0 2.9 2.3

Unit[V]

NOTE

Ref. No. PIN E Q10 C B E Q11 C B E Q12 C B E Q13 C B E Q14 C B E Q15 C B E Q16 C B E Q23 C B E Q24 C B E Q25 C B E Q26 C B E Q181 C B

VCC GND

VCC SINE WAVE SINE WAVE VCC

SQ OPEN GND

GND

GND

GND

26

STBY 0.8 3.4 1.5 0.0 5.0 0.0 0.0 9.0 0.0 0.0 2.5 0.0 0.0 2.5 0.0 7.5 9.0 8.1 6.4 8.1 5.7 0.0 0.0 0.7 0.0 4.9 0.0 0.0 2.7 0.0 0.0 0.0 0.8 0.2 2.8 1.0

TALK 0.8 3.3 1.5 0.0 5.0 0.0 0.0 9.0 0.0 0.0 2.4 0.0 0.0 2.4 0.0 7.5 9.0 8.1 6.4 7.7 5.7 0.0 0.0 0.7 0.0 4.9 0.0 0.0 2.7 0.0 0.0 0.0 0.7 0.1 2.7 0.8

NOTE

GND

Handset Ref. No. PIN 1 2 IC602 3 4 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 IC603 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Unit[V] STBY 0.0-3.8 0.0 0.0-1.3 0.0-3.0 3.8 3.8 3.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.8 0.0 0.0 3.8 3.8 3.8 1.3-3.8 0.0 3.8 0.0 0.0 0.2-2.6 3.8-0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0-3.6 0.0-3.8 0.0-1.6 0.0 0.0-3.8 0.0 0.0 3.8 0.0

TALK 3.8 0.0 1.3 3.0 3.8 3.8 3.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.8 0.0 0.0 3.8 3.8 3.8 3.8 0.0 3.8 0.0 0.0 2.4Vp-p 3.8Vp-p 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.8 1.6 0.0 3.8 0.0 0.0 3.8 0.0

Unit[V]

NOTE PULSE / -GND PULSE / -PULSE / -VCC

OPEN

OPEN VCC GND GND

PULSE / -GND GND GND PULSE / SINE WAVE PULSE / SINE WAVE

GND OPEN OPEN OPEN OPEN OPEN OPEN PULSE / -PULSE / -PULSE / -OPEN PULSE /

27

Ref. No. PIN 40 41 42 43 44 45 46 47 48 49 50 IC603 51 52 53 54 55 56 57 58 59 60 61 62 63 64 1 IC604 2 3 1 IC605 2 3 1 2 3 4 5 6 IC606 7 8 9 10 11 12 13

STBY 0.0 3.8-0.0 0.0-3.8 3.8 0.0 0.0-2.5 0.0 0.0 0.0 0.0 0.0 3.8 3.8 3.8 0.0 3.8-0.0 3.8 0.0 3.8 0.0 0.0-1.2 0.0 0.0-3.0 0.0-3.0 3.8 3.8 3.8 0.0 3.8 3.8 0.0 0.0-3.0 0.0-2.6 0.0-2.6 0.0-3.0 0.0-2.6 0.0-2.6 0.0-2.6 0.0-3.0 0.0-1.0 0.0-0.6 0.0-0.6 0.0-0.6 0.0-3.0

TALK 0.0 3.8 3.8 3.8 0.0 0.0 0.0 0.0 0.0 0.0 3.8 3.8 0.0 0.0 3.8 0.0-3.8 3.8 3.8 3.8 0.0 1.2 0.0 3.0 3.0 3.8 3.8 3.8 0.0 3.8 3.8 0.0 1Vp-p 0.6Vp-p 2.6 3.0 2.7 2.7 2.7 3.0 1.0 0.7 0.7 0.7 0.0

NOTE PULSE / -SQ

PULSE / --

GND

PULSE VCC

PULSE / -PULSE / -PULSE / --

VCC GND VCC GND PULSE / SINE WAVE PULSE / SINE WAVE

PULSE / -VCC PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / --

Unit[V] Ref. No. PIN 14 IC606 15 16 1 2 3 4 5 6 7 8 9 10 11 IC607 12 13 14 15 16 17 18 19 20 21 22 23 24 E Q601 C B E Q602 C B E Q603 C B E Q604 C B E Q605 C B

STBY 0.0 0.0 0.0-3.0 0.0-1.7 0.0-1.7 0.0-1.5 0.3-0.8 0.0-1.5 0.0-1.5 0.0-1.7 0.0-3.8 0.0 0.0-1.0 0.0 0.0-1.6 0.0-3.0 0.0-1.6 0.0-1.6 0.0 0.0 0.0-1.6 0.0-1.6 0.0-1.6 0.3-0.9 0.2-1.5 0.2-1.6 0.2-1.6 0.0 0.0 0.0-0.7 0.0 3.8-0.0 0.0-0.6 0.0 3.8 0.0 0.0 3.8-0.0 0.0-0.6 3.8 0.0 3.8

TALK 0.0 0.0 3.0 1.7 1.7 1.7 0.6 1.5 1.5 1.7 3.8 0.0 0.7 0.0 1.6 3.0 1.6 1.6 3.8 3.8 1.6 1.6 1.6 0.7 1.6 1.6 1.6 0.2 1.7 0.8 0.0 3.8-0.0 0.0-0.6 0.7 2.0 1.5 0.0 3.8 0.0 3.8 0.0 3.8

Unit[V]

NOTE

Ref. No. PIN E Q606 C B E Q608 C B E Q610 C B E Q611 C B E Q612 C B E Q613 C B E Q614 C B E Q615 C B

GND PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -GND PULSE / -GND PULSE / -VCC PULSE / -PULSE / --

PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / -PULSE / --

PULSE / -GND PULSE / -PULSE / --

GND PULSE / -PULSE / --

28

STBY 0.0 0.0 3.8 0.0 0.0 0.0 0.0 3.8 0.0 0.0 3.8 0.0 0.0 0.0-2.2 0.0-0.7 0.0-3.0 0.0 0.0-2.4 0.0 3.8 0.0 0.0 0.0 0.0-0.7

TALK 0.0 0.0 3.8 0.4 1.9 1.0 0.0 3.8 0.0 0.0 3.8 0.0 0.0 2.2 0.7 3.0 3.0 2.3 0.7 2.0 1.5 0.0 0.0 0.0

NOTE

GND

GND

PULSE / -PULSE / -PULSE / -PULSE / --

GND PULSE / --