telephone equipment kx-tc2000nzb kx-tc2000nzw kx...

© 2003 Panasonic Communications Co., Ltd. Allrights reserved. Unauthorized copying anddistribution is a violation of law.

KX-TC2000NZBKX-TC2000NZWKX-TC2000NZFCordless PhoneBlack Version

White Version

Blue Version

(for New Zealand)

Telephone Equipment

ORDER NO. KM40308180C3

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 6

3 CAUTION 6

4 BATTERY 7

4.1. Recharge 7

4.2. Battery information 7

5 BATTERY REPLACEMENT 8

6 LOCATION OF CONTROLS 9

6.1. Base Unit 9

6.2. Handset 9

7 CONNECTION 10

8 OPERATIONS 12

8.1. Making Calls 12

8.2. Answering Calls 12

8.3. Storing Phone Numbers in Memory 13

8.4. Storing a Phone Number in the DIRECT Button 13

8.5. Dialing a Stored Number 14

8.6. Dialing the Stored Number in the DIRECT Button 14

8.7. Recall Button 15

9 DISASSEMBLY INSTRUCTIONS 16

10 TROUBLESHOOTING GUIDE 18

10.1. Check Power 19

10.2. Bell Reception 20

10.3. Check Battery Charge 21

10.4. Check Link 22

10.5. Check Handset Transmission 24

10.6. Check Handset Reception 24

11 ADJUSTMENTS (BASE UNIT) 25

11.1. Test Mode Flow Chart (Base Unit) 25

11.2. How to change the channel 26

11.3. Adjustment 26

11.4. Adjustment Standard (Base Unit) 27

12 ADJUSTMENTS (HANDSET) 28

12.1. Test Mode Flow Chart (Handset) 28

12.2. How to change the channel 29

12.3. Adjustment 29

12.4. Adjustment Standard (Handset) 30

13 RF SPECIFICATION 32

13.1. Base Unit 32

13.2. Handset 32

14 HOW TO CHECK THE HANDSET SPEAKER 32

15 FREQUENCY TABLE (MHz) 33

16 EXPLANATION OF CPU DATA COMMUNICATION 34

16.1. STAND-BY -> TALK, TALK -> STAND-BY 34

16.2. Ringing 35

16.3. Changing the Channel 36

16.4. Ports for transmitting and receiving of data 37

16.5. Waveform of DATA used for cordless transmission and

reception 37

17 BLOCK DIAGRAM (BASE UNIT) 38

CONTENTS Page Page

2

KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

18 BLOCK DIAGRAM (HANDSET) 39

19 CIRCUIT OPERATION 40

19.1. Outline 40

19.2. Power Supply Circuit 41

19.3. Reset Circuit (Base Unit) 42

19.4. Charge Circuit 43

19.5. Telephone Line Interface 43

19.6. DTMF 43

19.7. Transmitter/Receiver 44

19.8. Signal Route 46

20 CIRCUIT OPERATION (HANDSET) 47

20.1. Reset Circuit (Handset) 47

20.2. Battery Low / Power Down Detector 48

21 CPU DATA (Base Unit) 49

21.1. IC2 49

22 CPU DATA (Handset) 50

22.1. IC2 50

23 RF IC (Base Unit and Handset) 51

23.1. IC1 51

24 HOW TO REPLACE FLAT PACKAGE IC 52

24.1. Preparation 52

24.2. Procedure 52

24.3. Modification Procedure of Bridge 52

25 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)

53

26 CABINET AND ELECTRICAL PARTS LOCATION (HANDET) 54

27 ACCESSORIES AND PACKING MATERIALS 55

28 REPLACEMENT PARTS LIST 56

28.1. Base Unit 56

28.2. Handset 58

28.3. ACCESSORIES AND PACKING MATERIALS 60

29 FOR SCHEMATIC DIAGRAM 61

29.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 61

29.2. Handset (SCHEMATIC DIAGRAM (Handset)) 61

30 SCHEMATIC DIAGRAM (Base Unit) 62

30.1. Base Unit 62

30.2. RF Unit (Base Unit) 63

31 SCHEMATIC DIAGRAM (Handset) 64

31.1. Handset 64

31.2. RF Unit (Handset) 65

31.3. Memo 66

32 CIRCUIT BOARD (Base Unit) 67

32.1. Component View 67

32.2. Flow Solder Side View 68

33 CIRCUIT BOARD (Handset) 69

33.1. Component View 69

33.2. Flow Solder Side View 70

3


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 thatcontains 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 repairwork 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 withtemperature control and adjust it to 700°F ± 50° F (370°C ± 10°C). In case of using high temperature soldering iron, pleasebe 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 possibleand 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 theopposite side (See the figure below).

1.1. Suggested PbF SolderThere 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 othermaterials.

The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.

4


1.2. How to recognize that Pb Free solder is used

1.2.1. Base Unit Main PCB

IC5

JK1

PbF

Marked(Component View)

Note:

The location of the "PbF" marks is subject to change without notice.

1.2.2. Handset PCB

IC2

DP

X1

PbF

Marked(Component View)

Note:

The location of the "PbF" marks is subject to change without notice.

5


2 FOR SERVICE TECHNICIANSICs and LSIs are vulnerable to static electricity.

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

1. Cover plastic parts boxes with aluminum foil.

2. Ground the soldering irons.

3. Use a conductive mat on worktable.

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

3 CAUTIONDanger 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.

6


4 BATTERY4.1. Recharge

4.2. Battery information

7


5 BATTERY REPLACEMENT

8


6 LOCATION OF CONTROLS6.1. Base Unit

6.2. Handset

9


7 CONNECTION

• • • • USE ONLY WITH Panasonic AC ADAPTOR PQLV16AL.

• • • • The AC adaptor must remain connected at all times.

(It is normal for the adaptor to feel warm during use.)

• • • • This unit will not function during a power failure.

If you want to connect a standard telephone on the same line, use a T-adaptor.

• • • • KX-TC2000NZ is not designed to be used with rotary (pulse dialling) services.

10


For Service Hint:

11


8 OPERATIONS

8.1. Making Calls

8.2. Answering Calls

12


8.3. Storing Phone Numbers in Memory

8.4. Storing a Phone Number in the DIRECT Button

13


8.5. Dialing a Stored Number

8.6. Dialing the Stored Number in the DIRECT Button

14


8.7. Recall Button

15


9 DISASSEMBLY INSTRUCTIONS

Show in Fig. Procedure To remove. Remove.1 1 Lower Cabinet Screws (2.6 × 12)............... ........ (A) × 42 1, 2 Main P.C. Board Screw (2.6 × 6)................. ......... (B) × 1

Screw (2.6 × 12)............... ........... (C) × 1SolderMain P.C. Board.

16


Show in Fig. Procedure To remove. Remove.3 3 Rear Cabinet Battery compartment cover.4 3, 4 Screws (2.6 × 12)............... .......(D) × 25 3, 4, 5 Follow the procedure.6 3, 4, 5, 6 Main P. C. Board Screw (2.6 × 12)............... .........(E) × 1

Tape and solder.Main P. C. Board.

17


10 TROUBLESHOOTING GUIDE

Cross Reference:

Check Power (P.19)

Bell Reception (P.20)

Check Battery Charge (P.21)

Check Link (P.22)

Check Handset Transmission (P.24)

Check Handset Reception (P.24)

18


Cross Reference:

Reset Circuit (Base Unit) (P.42)

Power Supply Circuit (P.41)

Cross Reference:

Charge Circuit (P.43)

Note:

CPU: IC2

Note:

CPU: IC2

10.1. Check Power

*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.67) or CIRCUIT BOARD (Handset) (P.69)

19


Cross Reference:

Check Link (P.22)

Telephone Line Interface (P.43)

Note:

CPU: IC2

10.2. Bell Reception

Cross Reference:

Check Link (P.22)


20


Cross Reference:

Charge Circuit (P.43)

Power Supply Circuit (P.41)

Cross Reference:

Reset Circuit (Handset) (P.47)

Note:

CPU: IC2

Note:

CPU: IC2

10.3. Check Battery Charge


21


**: Refer to Adjustment (P.26) Note:

CPU: IC2

RF IC: IC1

10.4. Check Link


22


**: Refer to Adjustment (P.29). Note:

CPU: IC2

RF IC: IC1


23


10.5. Check Handset Transmission

Cross Reference:

Signal Route (P.46)

10.6. Check Handset Reception

Cross Reference:

Signal Route (P.46)

*: Each measurement points are shown in CIRCUITBOARD (Base Unit) (P.67) or CIRCUIT BOARD (Handset)(P.69)

24


Note:

**: Refer to the above table.

11 ADJUSTMENTS (BASE UNIT)If your unit have below symptoms, adjust or confirm each item using remedy column from the table.

Symptom Remedy*The base unit dose not respond to a call from handset. Make confirmation in item (A)The base unit dose not transmit or the transmit frequency is off. Make adjustments in item (B)The transmit frequency is off. Make adjustments in item (C)The transmit power output is low, and the operating distance between the base unit andthe handset is less than normal.

Make adjustments in item (D)

The reception sensitivity of base unit is low with noise. Make confirmation in item (E)The transmit level is high or low. Make confirmation in item (F)The reception level is high or low. Make confirmation in item (G)The unit does not link. Make confirmation in item (H)

*: Refer to Adjustment (P.26).

11.1. Test Mode Flow Chart (Base Unit)The operation-flow of Test mode and main check items are shown below.

25


11.2. How to change the channel

*: Refer to Flow Solder Side View (P.68).

11.3. AdjustmentAdjustment Items Test Mode Adjustment

Point*Procedure Check or

ReplaceParts

(A) RX VCOConfirmation

3ch Talk - • • • • Confirm so that the reading of the Digital Voltmeter is 2.0V ± 1.0V. IC1, L10,C26, R14

(B) TX VCOAdjustment

3ch Talk T6 • • • • Adjust T6 so that the reading of the Digital Voltmeter is 2.0V ± 0.3V. IC1, DV1,T6

(C) TX FrequencyAdjustment

3ch Talk VC1 • • • • Adjustment VC1 so that the reading of the frequency counter is30.1750MHz ± 100Hz.

IC, X1, T6,DV1, C35,C40, VC1

(D) TX PowerAdjustment

3ch Talk T5 • • • • Adjust T5 so that the reading of the RF VTVM is more than 9dBm. IC1, Q3,Q4, Q5,

T5, DPX1(E) RX Sensitivity

Confirmation(2nd IF output)

3ch Talk T2 1. Apply 60dBuVemf output from S.S.G. (modulation frequency 1KHz, dev.0KHz).

2. Confirm that the reading of RF VTVM is the maximum value (more than20mV)

DPX1, T2,CF1, CF2

(F) Line Output LevelConfirmation

3ch Talk - 1. Apply 60dBuVemf output from S.S.G. (modulation frequency 1KHz, dev.3KHz).

2. Confirm that the reading of AF VTVM is more than 120mV (600Ω load).

IC1, Q11

(G) Line InputModulation

Confirmation

3ch Talk - 1. Input via loop simulator 1.0KHz, -20dBm (measured at T-R) signal.

2. Apply 60dBuVemf output from S.S.G. (modulation frequency 1KHz, dev.0KHz).

3. Confirm so that the reading of FM Deviation Meter is 2.8KHz ± 0.3KHz.

IC1, DV1

(H) Noise SquelchConfirmation

3ch Talk - 1. Measure the SSG output level when the noise squelch changes from Lowto High.

2. Confirm that the SSG output level is -10 ~ +5dBuVemf.

IC1, DPX1

* : The connection of adjustment equipment are as shown in Adjustment Standard (Base Unit) (P.27).

SSG Frequency: 39.875 MHz

26


11.4. Adjustment Standard (Base Unit)When connecting the Simulator and Equipments for checking, please refer to the illustration below.

IC3

IC2

IC1

R16

0

R16

1 C12

2

R12

0

ZD

3

D1

R13

1

ZD

10Z

D12

ZD11

R132

C96

C47

C53

C99

R145

R55

C62

C56 C57 C31

R49

R16

R14

C22

C6

C16

R2

C26

C7

R30

R31

R60

C44

R24

R23

C35

C109

R25 C33

C10

C18

C12R83

Q40

3

C67

C65

R153

R185

R94

R76 R63R158

R403

R405

R407R58

R409

C402

R404

C401R402

R401

R146

R89

C108

C85

C90R129

C92R119

R122

LED1

R197

R68

C10

7

1

1

1 Q40

1

Q40

2

R41

0

C13

5

R40

8

R87

R85

R81

R79

R78

C10

6

C88

R57R

97R

180

C73

R14

1

R13

4

R12

3

R11

5

R15

9

R15

7

R13

3

R12

6

R77

R75

R84

R59

R82

Q7

Q16

Q13

Q11

R62

C64

C134R6

R19R20R21

R14

3

R109

C69

R95

R104

R96 C70

R178

R177R140

C82

C84

C74 C75

R105

R179

R100

C86

R166

R117C120

R88

R32C36

R26

C40

R80

C48

R15

C59

R56

R53

R42

C49

R175C5 C14C

136

R54

R51

R15

5

R11

0

R11

2

C10

1

R15

0

R13

9

R148

R149

R183

R86

R17

0

R44

C54

C61

R50

C11

R10

C4

C28

R3

Q21

R5

R4

R74

R16

7

R40

6

R1

R15

6

R93

C25

R7

C2

C8

C9

R22

C43

C45

C37

C34

C93

C79

C12

1

C39

C12

5

R13

R8C24

R12

C23

C29 C

19

C27

R36

C52

C46

C13

3

Q14

Q17

Q3

D11

Q25

C11

0

Q4

Q5

Q6

Q20

Q2

C51 R154R40

R52R45R38

ZD5

R116

R13

0

R12

4

R138

R137

C63

R10

3

R11

4

R10

8

R90

C72

C77

R18

C58

C60C55

R198

R46

R41

D8

R33 R48

R37R35

R43

R11

1C

123

C12

4R

181

C83

Oscilloscope (H)

RF Volt Meter

T.P ( CH change at test mode)

DC12V orAC adaptor

DC Volt Meter

Confirmation of VCO voltage

TX-VCORX-VCO

(A), (B)

LoopSIMULATOR

AF OSC

AF Volt Meter (F)

TXPOWER TXGND

SSG48.86MHz

AudioAnalyzer

RF Volt Meter

FrequencyCounter

(D)

(C)

(G)

FM DeviationMeter

(E)

50Ω

Note: (A) - (H) is refered to ADJUSTMENTS (BASE UNIT) (P.25)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

27

12 ADJUSTMENTS (HANDSET)If your unit have below symptoms, adjust or confirm each item using remedy column from the table.

Symptom Remedy*The movement of Battery Low Indicator is wrong. Make confirmation in item (A)The base unit does not respond to a call from the handset. Make adjustments in item (B)The base unit does not transmit or the transmit frequency is off. Make confirmation in item (C)The transmit frequency is off. Make adjustments in item (D)The transmit power output is low, and the operating distance between the base unit andthe Handset is less than normal.

Make confirmation in item (E)

The reception sensitivity of the handset is low with noise. Make confirmation item (F)Does not link between the base unit and the handset. Make confirmation in item (G)The reception level is high or low. Make confirmation item (H)The transmit level is high or low. Make confirmation in item (I)


Unit condition:

1. Remove the antenna lead wire from P.C Board of the handset.

2. Power Supply: DC 3.9V (DC power supply)

3. Volume: HIGH (When P.C. Board of handset is in test mode, volume condition is medium. Press “LOCATOR” key once.)

4. Speaker Load: 150Ω

CH TX Frequency RX FrequencyCH3 39.875MHz 30.175MHz

12.1. Test Mode Flow Chart (Handset)

Note:

Refet to CIRCUIT BOARD (Handset) (P.69)

Signal Route (P.46)

28


12.2. How to change the channel

12.3. AdjustmentAdjustment Items Test Mode Adjustment

PointProcedure Check or

ReplaceParts

(A) Battery LowConfirmation

3ch Talk - 1. Adjust the power supply voltage to DC3.60V,and confirm so that thereading of oscillosope is High.

2. Adjust that power supply voltage to DC 3.40V, and confirm so that thereading of oscilloscope is Low.

IC1

(B) TX VCOAdjustment

3ch Talk T6 1. Adjust T6 so that the reading of the Digital Voltmeter is 1.5V ± 0.3V. IC1, X1,T6, DV1

(C) RX VCOConfirmation

3ch Talk - 1. Confirm so that the reading of the Digital Voltmeter is 0.7 ~ 3.0V. IC1, X1,L6, C24

(D) TX FrequencyAdjustment

3ch Talk VC1 • • • • Adjust VC1 so that the reading of the frequency counter is 39.8750MHz± 100Hz.

IC1,DPX1, T5

(E) TX PowerConfirmation

3ch Talk - • • • • Confirm so that the reading of the RF VTVM is more than -3.0dBm(50Ω load).

IC1,Q3,Q4,Q5, DPX1

(F) RX SensitivityConfirmation(2nd IF output)

3ch Talk T3 1. Apply 60dBuVemf output from S.S.G. (modulation frequency 1KHz, dev.0KHz).

2. Confirm that the reading of RF VTVM is the maximum value (more than15mV).

DPX1,T3,IC1,

CF1, CF2

(G) Noise SquelchConfirmation

3ch Talk - 1. Measure the SSG output level when the noise squelch changes fromLow to High. (modulation frequency 1KHz, dev.3kHz)

2. Confirm that the SSG output level is -18 ~ 0dBuVemf.

IC1, DPX1

(H) SpeakerOutput LevelConfirmation

3ch Talk - 1. Apply 60dBuVemf output from S.S.G. (modulation frequency 1KHz, dev.3KHz).

2. Confirm that the reading of AF VTVM is more than 30mV.

(distortion: less than 5%) (volume High).

IC1

(I) Mic ModulationFactorConfirmation

3ch Talk - 1. Apply a MIC signal (1KHz, 5.0mV at 600Ω load).

2. Confirmation so that the reading of FM Deviation Meter is 3.4KHz ±0.4KHz.

IC1, DV1

(J) DataModulationConfirmation

3ch Talk - • • • • Confirm for 5.0 ± 1.0KHz FM Deviation Meter reading.

(K) Battery lowConfirmation

- - 1. Apply 3.50V between BATT(+) and BATT(-).

2. Confirm that there is no flashing of RECHARGE LED.

3. Apply 3.40V between BATT(+) and BATT(-).

4. Confirm that there is flashing of RECHARGE LED.

IC1

The connections of adjustment equipment are as shown in Adjustment Standard (Handset) (P.30).

SSG Frequency: 30.175 MHz

29


12.4. Adjustment Standard (Handset)When connecting the Simulator and Equipments for checking, please refer to the illustration below.

(Component View)

IC2

T5

T3

CF

2CF1

DP

X1

T6

T1

BZ

1

X3

X2

X1

RE

C

C37

C42

C56

C51

L1

L200

L6

VC

1C

43

C29 C18

C12

C15

L3

L2

C80

R99R96

C64C71

R107R58

R19R105

R48

R22

R17

R20

C78

R46

R5

C9

C16

C1

R94

R101R14

R106

R93R11

C31

C77

R95

R63

D3 R55

R109

DV1

Q1

R3

R61

R98

C58

C39

R67R66R57

R77

R12

R70

C45R30

C46

R37

R86R85

C72C69

R71

R79

R69 R

84C

70

R73

R81

R83

R80

R72

R10

3C

79C

33

C14

R29

R10

2R

23

R11

1C

74R

82

R78

R74

C73

R87

R60R64

C84

R68

R65

R75R53R76

D1

L7

L4L5

R36

Q4

R39

Q11

C86

ZD

3

CH

G+

CH

G-

ZD

1

BAT

T1

C48

Q9

C63

R59

R11

2

R62

R56

Q12

Q8

Q3

Q7

Q2

R54

R6

R8

C30

R28

C38

C23

C76

R21

C26

C27

R10

8

R11

0C

8

C75

C34 C32

R16

R18

R42

C66

C65

C68

C67

150Ω AF Volt Meter (H)

Oscilloscope(G) Noise Squelch

(A) Battery Low

47µF

AF-Generator

+

-

Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.28)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

30

(Flow Solder Side View)

IC1

21 4

5

3 6 9 #

PAU

SE

CH

MIC

1

78

LOU

DP

RO

G

RE

DIA

LR

ING

ER

0

FLA

SH

TALK

R2

R11

3

R13

C28

R25

R34

R35

C47

C85

C22

C5

R1

C24

C52

Q6Q5

C59

C53

C54

C17

C20

0

C3

R97R

43

R47

C4

R10

C2

C6C88

C44C41

C61R50

R44R40

R49R45

R41

C40R24 R51

C57

R38

C36C35

R26

C49

C89C203

C202C201

R200

Q200

C10C55

C50C60

C62R52

R201

C13

C21

R9

C7

DIR

TA

UTO

LED

6

LED

3

K11

LED

4

LED

1

LED

5

LED

2

TXPOWERTXGND

50Ω

FM DeviationMeter

AudioAnalyzer

FrequencyCounter

RF Millivolt Meter

(I), (J)

(D)

(E)

SSG43.820MHz

DC Volt Meter(B)

TX VCO

RF Volt Meter

(F)

DC Power Supply

DC Volt Meter(C)

RX VCO

Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.28)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

31

13 RF SPECIFICATION13.1. Base Unit

Item Value Refer to -.* RemarksTX Frequency 30.175MHz ± 100Hz ADJUSTMENTS (BASE UNIT) (C) at CH3TX Power more than 1mW ADJUSTMENTS (BASE UNIT) (D) at CH3Line Modulation factor 2.5 kHz~3.1 kHz ADJUSTMENTS (BASE UNIT) (G)Data Modulation factor 4.5 kHz~7.5 kHz —Line Output level more than 120mV —


13.2. HandsetItem Value Refer to -.** Remarks

TX Frequency 39.875 MHz ± 0.1kHz ADJUSTMENTS (HANDSET) (D) at CH3TX Power more than 1mW ADJUSTMENTS (HANDSET) (E) at CH3 (Antenna

soldering point 50ΩLoad)

Data Modulation factor 5.0 kHz~6.0 kHz ADJUSTMENTS (HANDSET) (J) at CH3MIC Modulation factor 2.9 kHz/dev~3.8 kHz/dev ADJUSTMENTS (HANDSET) (I) at CH3 (MIC terminal

2.4mV Input)SP Output level more than 30mV —

**: Refer to Adjustment (P.29).

14 HOW TO CHECK THE HANDSET SPEAKER 1. Prepare the digital voltmeter, and set the selector knob to ohm meter.

2. Put the probes at the speaker terminals as shown below.

32


15 FREQUENCY TABLE (MHz)BASE UNIT PORTABLE UNIT

Channel Transmit Frequency Receive Frequency Transmit Frequency Receive Frequency1 30.0750 39.7750 39.7750 30.07502 30.1250 39.8250 39.8250 30.12503 30.1750 39.8750 39.8750 30.17504 30.2250 39.9250 39.9250 30.22505 30.2750 39.9750 39.9750 30.27506 30.1000 39.8000 39.8000 30.10007 30.1500 39.8500 39.8500 30.15008 30.2000 39.9000 39.9000 30.20009 30.2500 39.9500 39.9500 30.2500

10 30.3000 40.0000 40.0000 30.3000

33


16 EXPLANATION OF CPU DATA COMMUNICATION16.1. STAND-BY -> TALK, TALK -> STAND-BY

*: The channel is changed if the noise interferes with the conversation.

34


16.2. Ringing

35


16.3. Changing the Channel

36


Handset:

transmitting (TX) ... 36 Pin

receiving (RX) ... 4 Pin

Base Unit:

transmitting (TX) ... 17 Pin

receiving (RX) ... 10 Pin

16.4. Ports for transmitting and receiving of data

16.5. Waveform of DATA used for cordless transmission and receptionThe DATA which is transmitted from the Handset to the Base Unit is combination of DATA 0, DATA 1, PSEUD.

The DATA which is transmitted from the Base Unit to the Handset is combination of DATA 0, DATA 1, PSEUD.

16.5.1. Handset

16.5.2. Base Unit

• • • • For example (one of part of data)

37


17 BLOCK DIAGRAM (BASE UNIT)

RX VCOL10, C26DUPLEXER

DPX1

MIX 1/2RF AMPQ1, T2

RX LOOP

X1

VC1

X2

DC 12V

TX LOOP

DC 5V

RF ICIC1

TELEPHONE LINEINTERFACE

CPUIC2

RF-DATA-CLK-STB

VTX RF-DATA-CLK-STB

RX DATA

TX DATA

POWERCONTROL

Q2

5VREGULATOR

Q18, Q19

RF AMPQ3,Q4, T5

TX VCOQ5, T6, DV1

PLL OSC

RF FILTERCF1, CF2

10.7MHz 450kHzANTENNA

LEDQ21, LED1

RESETDTCQ401

CHARGEDTC

Q7

EXP17

14

TELLINEAMP

Q11, IC3

TEL LINE

POWER SUPPLYRESET CHARGE

CHARGETERMINAL

CHARGECONTROL

Q14, Q17Q24, Q25

AC DOWNDTC

Q402,Q403

DC IN12V 150mA

(AC Adaptor)

COM

DC 5V

CONTROL LINE

AUDIO SIGNAL

TELLINESWT7

DIODEBRIDGE

D2, D3,D4, D5

H/S

KX-TC2000NZB/W/F BLOCK DIAGRAM (BASE UNIT)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

38

18 BLOCK DIAGRAM (HANDSET)

RX VCOL6, C24DUPLEXER

DPX1

MIX 1/2RF AMPQ1, T3

X1

X3

TX LOOP

DC 3.9V

RF ICIC1

CPUIC2

RF-DATA-CLK-STB

VTX RF-DATA-CLK-STB

RX DATA

TX DATA

POWERCONTROL

Q4

RF AMPQ5, T5Q200

TX VCOQ6, T6, DV1

PLL OSC

RF FILTERCF1, CF2

ANTENNA

LEDQ8, LED 1-4

RESETQ11

DIODEBRIDGE

D1

CHARGEDTC

IC2 PING37

BUZZERQ7, BZ1

Q12KEY BOARD

EXP SPEAKERREC1

MICMC1

CHARGETERMINAL

DIODEBRIDGE

Q9

COM

DC 3.9V

CONTROL LINE

AUDIO SIGNAL

Base

RX LOOP

VC1

BATTERY3.9V

KX-TC2000NZB/W/F BLOCK DIAGRAM (HANDSET)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

39

19 CIRCUIT OPERATION19.1. Outline

Base unit consists of the following ICs as shown in BLOCK DIAGRAM.

• • • • CPU:IC2

− − − − Controlling the whole system

− − − − Forming/analyzing all data signals (ACK, CMD signal etc.*)

− − − − All interfaces (ex: LED, KEY, SP, Mic, LCD, Detector Circuit (Charge/ Power Down)

*Refer to EXPLANATION OF CPU DATA COMMUNICATION (P.34).

• • • • RF IC:IC1

− − − − PLL Oscillator

− − − − Detection

− − − − Compress/ Expander

− − − − first/ second mixer

− − − − Amplifier for transmission and reception

• • • • Additionally,

− − − − Power Supply Circuit

− − − − Reset Circuit

− − − − Charge Circuit

− − − − Telephone Line Interface Circuit

Handset consist of the following ICs as shown in BLOCK DIAGRAM.

• • • • CPU: IC2

− − − − All data signals (forming/analyzing ACK or CMD signal*)

− − − − All interfaces (ex; LED, Key, Buzzer, Detector Circuit, Charge, Battery Low)

− − − − RAM for keeping the data (CH Number, ID Code, etc.)

• • • • RF IC:IC1

− − − − PLL Oscillator

− − − − Detector

− − − − Compress/Expander

− − − − first, second mixer

− − − − Amplifier for transmission and reception

*Refer to EXPLANATION OF CPU DATA COMMUNICATION (P.34).

40


19.2. Power Supply CircuitThe power supply to the CPU (Digital, Analog) and RF IC from AC Adaptor (+12V) is shown in the diagram below.

The base unit power supply is DC12V. The handset´s power is supplied from 3.6V battery (Nickel-Cadmium battery) which is

installed in the handset.

Power supply for transmitter is turned on by a press of "Talk" key on the handset. During the stand-by mode, the unit stops

transmitting but receives the signal.

Also during on-hook condition (the handset is placed on the base unit), backup power for memory of the last dialed number is

supplied through the battery. The memory of this unit is not backed up by the current from

the telephone line.

The base unit DC power supply is regulated by Q18, the CPU power is regulated by Q19. The Q401, Q403 detects AC Adaptorpower failure and maintains the unit security code.

Fig. 1

41


19.3. Reset Circuit (Base Unit)After power supply from AC adaptor, the below circuit is for making reset signal. Refer to the below waveform.

Fig. 2

Fig. 3

42


19.4. Charge CircuitCircuit Operation:

When charging the handset on the base unit, the charge current is as follows;

DC (JK2) → L8 → D6 → Q14 → Q24 → L7 → CHG+(Base) → [CHG+(Handset) → L4 → Q9 → BATT(1)....Battery....BATT(2)→ L5 →

CHG-(Handset)] → CHG-(Base) → L5,

In this way, the CPU on both unit detects the fact that the battery is charged.

The charge current is controlled by switching Q24, Q25 of Base Unit. The battery is charged in normal mode for 15 hours andthen in trickle mode.

19.5. Telephone Line InterfaceFunction:

• • • • Bell signal detection

• • • • ON/OFF hook and pulse dial circuit

• • • • Side tone circuit

Bell signal detection and OFF HOOK circuit:

In the idle mode, Q103 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T)

and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows:

JK1 (3): T → L6 → R184 → R144 → IC3D (12,13 → 14) → C97 → R148 → Q20 → IC2 (24) [BELL ]

JK1 (2): R → L4 → R183 → R152 →↑

When the CPU (DSP) detects a ring signal and press the TALK Key on the handset. Q6 turns on and then RY1 turns on,

thus providing an off-hook condition (active DC current flow through the circuit) and the following signal flow is for the loop

current.

T → R160 → L4 → D2 → RY1 → R107 → T7 → R116 → D5 → L6 → R161 → R [OFF HOOK]

ON HOOK Circuit:

Q6 is open, RY1 disconnected as to cut the DC loop current and to cut the voice signal. The unit is consequently in an on-hook

condition.

Side Tone Circuit:

Basically this circuit prevents the TX signal from feeding back to RX signal.

As for this unit, TX signal feed back from Q11 is canceled by the cancellor circuit of AGC.

19.6. DTMFThe DTMF signal is generated by five outputs of IC2 (CPU) and output to telephone line through the filter of IC3A which is alowpass filter as shown below.

The combination of five outputs “1”, “0” makes 32 (=2 5) level signals and makes smooth waveform after filter like a DTMFgenerator.

43


19.7. Transmitter/ReceiverBase Unit and Handset are mainly consists of RF(Radio Frequency) IC and CPU.

Base Unit and Handset transmit/receive voice signal and data signal through the antenna on carrier frequency.

Signal Pass :

*Refer to CDL TX/RX in Signal Route (P.46).

19.7.1. Base to Handset

Circuit Operation:

The voice signal input from the TEL LINE interface goes to RF IC as shown in

BLOCK DIAGRAM (BASE UNIT) (P.38).

In the talk mode (off-hook) condition, the telephone line voice signal passes through D2, D3, D4, D5, RY1 (Relay), R107 andT7.

The other party´s voice signal is coupled with T7 and amplified by Q11 and led to IC3-B (OP Amplifier device).

And the signal goes through the compressor of RF IC, it is output to transmitter circuit.

The signal of the data sent to the handset is applied in the anode of the variable capacitor diode (VARICAP : DV1).

The capacitor of VARICAP is changing in accordance with the voice signal from telephone line interface or TX DATA signal from

CPU. Therefore, the carrier frequency which is generated by TXVCO will be changing, and Frequency modulated RF

signal is generated and amplified by RF AMP(Q3, Q4, T5). It pass through the Duplexer DPX1 and radiated from Antenna.

The signal is transmitted from the base unit and received by the handset antenna and amplified by RF amplifier (Q1) through

DPX1 as shown in BLOCK DIAGRAM (HANDSET) (P.39). And then it is converted to 10.7 MHz and 455 KHz Intermediatefrequency by RF IC and related components.

The demodulated audio signal is output from RF IC (DET OUT) and passed through "Expander" process to reduce noise, then

voice signal amplified by "Receiver amplifier" is output to receiver (REC1).

The receiver loudness is adjustable using "LOUD" key on the handset. Q2 and Q3 control the volume. When CPU (VOL1)

becomes low, the volume becomes "MID", while CPU (VOL1, 2) become low, the volume becomes "HIGH".

TX data (to Handset)

CPU (VTX) becomes low to turn on the transmission power transistor Q2, and CPU (TX-data) sends data signal. It is

FM-modulated by TXVCO and driven by RF AMP, then transmitted to the handset.

44


19.7.2. Handset to Base

Circuit Operation:

The voice signal from the handset user is picked up by the microphone (MC1), voice signal passes through "Compressor"

process to reduce noise as shown in BLOCK DIAGRAM (HANDSET) (P.39). And the voice is FM-modulated by

VARICAP (DV1).

The carrier frequency is generated by TX VCO. The transmitter power transistor Q4 is turned on/off by CPU (VTX).

The carrier signal is amplified by RF AMP and sent to the handset duplexer and antenna.

The signal of 39MHz band (39.775~40.000MHz) which is input from ANT is filtered at DPX1 as shown in

BLOCK DIAGRAM (BASE UNIT) (P.38), then it is input to RF IC.

The signal input to RF IC is converted through Mixer inside of RF IC, RF filter (CF1, CF2) and Expander.

The signal is transmitted from the handset and received by the base unit antenna and amplified by RF amplifier Q1, then

it is converted to10.7 MHz and 450 KHz Intermediate by RF IC. The demodulated audio signal is output from RF IC

(DET OUT) and passed through "Expander" process to reduce noise, then voice signal is led to LINE AMP. The signal is

passed through TELEPHONE INTERFACE and Tel-line.

RX data (from Handset):

The data signal from handset (ex: Talk, ACK, COM) is also included in 39 MHz band same as the voice data. After second if

filter, the data signal is made square shape by data limiting AMP of the RF IC. RX data is output to CPU (RX Data).

19.7.3. RF signal operation/control and PLL operation (RF UNIT)

Base unit radio frequency signal received by antenna passes through duplexer (DPX1).

RF signal is amplified by RF AMP. RF signal received from RF IC is mixed with RX local frequency at Mixer to generate

10.7 MHz wide band IF. The reference frequency is generated by X1 11.150 MHz crystal. VC1 is the reference frequency

for adjustment. The 10.7 MHz is mixed with reference and 450KHz narrow band IF is generated. The demodulation audio signal

is adjusted to the maximum at T1. RF IC is controlled by CPU (RF_STB, DATA, CLK). The RX local frequency is generated

by RXVCO.

45


19.8. Signal RouteEach signal route is as follows.

46


20 CIRCUIT OPERATION (HANDSET)20.1. Reset Circuit (Handset)

The power of handset is supplied by battery.

Whenever the battery is recharged or inserted, the impulse at CHG+ becomes Reset signal through Q11, and sent to CPU.

Fig. 4

Fig. 5

47


20.2. Battery Low / Power Down DetectorCircuit Operation:

“Battery Low” and “Power Down” are detected by RF IC which check the voltage from battery. Shortly, every detected blocksare inside of RF IC. The detected voltage is as follows;

• • • • Battery Low

Battery voltage : V(Batt) < 3.457V

The CPU detects this level and “Recharge battery” LED starts flashing.

• • • • Power Down

Battery voltage : V(Batt) < 3.0V

The output of RF IC (P-DOWN) becomes low level, then CPU stops working to keep the data (CH number, ID Code, etc.)

Fig. 6

48


21 CPU DATA (Base Unit)21.1. IC2

49


22 CPU DATA (Handset)22.1. IC2

50


23 RF IC (Base Unit and Handset)23.1. IC1

51


24 HOW TO REPLACE FLATPACKAGE IC

24.1. Preparation • • • • SOLDER

Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR-19RMA

• • • • Soldering iron

Recommended power consumption will be between 30 Wto 40 W.

Temperature of Copper Rod 662 ± 50°F (350 ± 10°C)

(An expert may handle between 60 W to 80 W iron, butbeginner might damage foil by overheating.)

• • • • Flux

HI115 Specific gravity 0.863.

(Original flux will be replaced daily.)

24.2. Procedure 1. Temporary fix FLAT PACKAGE IC by soldering on two

marked 2 pins.

*Most important matter is accurate settingof IC to the corresponding soldering foil.

2. Apply flux for all pins of FLAT PACKAGE IC.

3. Solder employing specified solder to direction of arrow, assliding the soldering iron.

24.3. Modification Procedure ofBridge

1. Re-solder slightly on bridged portion.

2. Remove remained solder along pins employing solderingiron as shown in below figure.

52


25 CABINET AND ELECTRICAL PARTS LOCATION (BASEUNIT)

53


26 CABINET AND ELECTRICAL PARTS LOCATION(HANDET)

54


27 ACCESSORIES AND PACKING MATERIALS

55


28 REPLACEMENT PARTSLIST

Note:

1. RTL (Retention Time Limited)

The marking (RTL) indicates that the Retention Time islimited for this item.

After the discontinuation of this assembly in production, theitem will continue to be available for a specific period oftime. The retention period of availability depends on thetype of assembly and the laws governing parts and productretention.

At the end of this period, the assembly will no longer beavailable.

2. Important safety notice

Components identified by the mark indicates specialcharacteristics important for safety. When replacing any ofthese components, only use specified manufacture´s parts.

3. The S mark indicates service standard parts and may differfrom production parts.

4. RESISTORS & CAPACITORS

Unless otherwise specified;

All resistors are in ohms (Ω) K=1000Ω, M=1000kΩ

All capacitors are in MICRO FARADS (µF) P=µµF

*Type & Wattage of Resistor

28.1. Base Unit

28.1.1. CABINET AND ELECTRICALPARTS

Ref.No.

Part No. Part Name & Description Remarks

1 PQJT10180Z CHARGE TERMINAL

2 PQHR10998Z LED LENS

3 PQGT16253Z NAME PLATE (for KX-TC2000NZB)

3 PQGT16257Z NAME PLATE (for KX-TC2000NZF)

3 PQGT16255Z NAME PLATE (for KX-TC2000NZW)

4 PQQT22294Z CHARGE LABEL

5 PQBC10389Z1 LOCATOR BUTTON (for KX-TC2000NZB)

Ref.No.


5 PQBC10389Y2 LOCATOR BUTTON (for KX-TC2000NZF)

5 PQBC10389Z3 LOCATOR BUTTON (for KX-TC2000NZW)

6 PQKE10335Z1 HOOK LEVER (for KX-TC2000NZB)

6 PQKE10335Z2 HOOK LEVER (for KX-TC2000NZF)

6 PQKE10335Z5 HOOK LEVER (for KX-TC2000NZW)

7 PQKF10597Z1 LOWER CABINET (for KX-TC2000NZB/F)

7 PQKF10597Z3 LOWER CABINET (for KX-TC2000NZW)

8 PQKM10607X1 UPPER CABINET (for KX-TC2000NZB)

8 PQKM10607W3 UPPER CABINET (for KX-TC2000NZF)

8 PQKM10607X4 UPPER CABINET (for KX-TC2000NZW)

9 PQSA10105Y ANTENNA

10 PQKL10056Z1 WALL MOUNT ADAPTOR (for KX-TC2000NZB/F)

10 PQKL10056Z3 WALL MOUNT ADAPTOR (for KX-TC2000NZW)

11 LCBT9300013 FOOT RUBBER

28.1.2. MAIN P.C.BOARD PARTSRef.No.


PCB1 PQWPC2000ALH MAIN P.C.BOARD ASS´Y (RTL)

(ICS)

IC1 SA133122409 IC

IC2 SA138740A11 IC

IC3 SA1S0032402 IC

IC5 AB1L0081715 IC

(TRANSISTORS)

Q1 BB230024104 TRANSISTOR(SI)

Q2 SB0I0390601 TRANSISTOR(SI)

Q3 SB1D0390401 TRANSISTOR(SI)









Q18 BB1M0390401 TRANSISTOR(SI)









(DIODES)

D1 SC1GM414809 DIODE(SI)

D2 BC2W0400401 DIODE(SI)




D7 VA02700A401 DIODE(SI)



DV1 BC6K0025101 DIODE(SI)

ZD1 BC050474801 DIODE(SI)

ZD2 BC050474801 DIODE(SI)

ZD3 SC4555C4V71 DIODE(SI)

ZD4 BC4579C8V21 DIODE(SI)




ZD10 SC4555C1506 DIODE(SI)

ZD11 SV110201203 DIODE(SI)

ZD12 SC4555C1506 DIODE(SI)

56


Ref.No.



(LED)

LED1 SC5E0192115 LED

(COILS)

L1 PQLQZK3R3J COIL

L3 PQLQZM120J COIL

L4 PQLQZK120J COIL

L5 PQLQZK120J COIL

L6 PQLQZK120J COIL

L7 PQLQZK120J COIL

L10 PQLQZK1R2J COIL

L11 PQLQZM120J COIL

DPX1 BDFL0083004 COIL

(JACKS)

JK1 DC72P120018 JACK

JK2 DC71P120023 JACK

(CERAMIC FILTERS)

CF1 BDFA107MA07 CERAMIC FILTER

CF2 BDFJ0450E08 CERAMIC FILTER

(CRYSTAL OSCILLATORS)

X1 BD1H1115002 CRYSTAL OSCILLATOR


(TRANSFORMERS)

T1 CLIP1200053 TRANSFORMER




T7 DG0P1200035 TRANSFORMER

(VARISTOR)

ZNR1 VA107D271K1 VARISTOR

(RESISTORS)

R1 ERJ3GEYJ470 47

R2 ERJ3GEYJ331 330

R3 ERJ3GEYJ153 15K

R4 ERJ3GEYJ822 8.2K

R5 ERJ3GEYJ103 10K

R6 ERJ3GEYJ103 10K

R7 ERJ3GEYJ334 330K

R8 ERJ3GEYJ103 10K

R10 ERJ3GEYJ393 39K

R12 ERJ3GEYJ101 100

R13 ERJ3GEYJ623 62K

R14 ERJ3GEYJ103 10K

R15 ERJ3GEYJ562 5.6K

R16 ERJ3GEYJ153 15K


R19 ERJ3GEYJ563 56K

R20 ERJ3GEYJ184 180K

R21 ERJ3GEYJ273 27K



R24 ERJ3GEYJ103 10K

R25 ERJ3GEYJ683 68K



R31 ERJ3GEYJ473 47K

R32 ERJ3GEYJ105 1M

R33 ERJ3GEY0R00 0

R35 ERJ3GEYJ101 100


R37 ERJ3GEYJ101 100


R40 ERJ3GEYJ223 22K

R41 ERJ3GEYJ473 47K

R42 ERJ3GEYJ103 10K

R43 ERJ3GEYJ103 10K




R48 ERJ3GEYJ223 22K

R49 ERJ3GEYJ753 75K



Ref.No.


R53 ERJ3GEYJ153 15K

R54 ERJ3GEYJ153 15K

R55 ERJ3GEYJ681 680



R58 ERJ3GEYJ221 220


R60 ERJ3GEYJ223 22K


R64 ERDS2TJ103 10K


R74 ERJ3GEY0R00 0

R75 ERJ3GEYJ103 10K

R77 ERJ3GEYJ203 20K

R78 ERJ3GEYJ393 39K

R79 ERJ3GEYJ823 82K



R82 ERJ3GEYJ103 10K

R83 ERJ3GEYJ103 10K

R84 ERJ3GEYJ103 10K

R85 ERJ3GEYJ103 10K

R86 ERJ3GEYJ473 47K


R88 ERJ3GEYJ103 10K

R89 ERJ3GEYJ103 10K





R97 ERJ3GEYJ102 1K





R106 ERDS2TJ220 22

R107 ERJ3GEYJ241 240





R112 ERJ3GEYJ102 1K

R113 CQ52033RT27 33



R116 ERJ3GEY0R00 0

R118 ERDS1TJ121 120


R120 ERJ3GEY0R00 0







R133 ERJ3GEYJ390 39


R142 ERDS2TJ220 22


R144 ERDS2TJ106 10M

R145 ERJ3GEYJ102 1K





R152 ERDS2TJ106 10M

R153 ERJ3GEYJ105 1M

R154 ERJ3GEYJ470 47

R155 ERJ3GEYJ470 47

R156 ERJ3GEYJ470 47


R160 ERJ6GEY0R00 0

R161 ERJ6GEY0R00 0

57


Ref.No.


R166 ERJ3GEYJ470 47


R170 ERJ3GEYJ102 1K

R172 ERDS2TJ223 22K

R173 ERDS2TJ102 1K

R174 ERDS2TJ102 1K



R183 ERJ6GEYJ106 10M

R184 ERDS2TJ106 10M


R195 ERDS2TJ472 4.7K


R198 ERJ3GEY0R00 0




R401 ERJ3GEYJ102 1K










(CAPACITORS)

C1 ECEA1AKA470 47

C2 ECUV1E104ZFV 0.1 S

C4 ECUV1H103KBV 0.01




C9 ECUV1H471JCV 470P S


C11 ECUV1H473MDV 0.047 S


C15 ECEA1HKA2R2 2.2

C16 ECUV1H270JCV 27P

C17 ECEA1CKA100 10



C20 ECEA1HKA2R2 2.2



C24 ECUV1E223ZFV 0.022

C25 ECUV1H472KBV 0.0047

C26 ECUV1H070CCV 7P


C28 ECUV1C104KBV 0.1


C30 ECEA1HKA2R2 2.2


C32 ECEA1HKA2R2 2.2






C38 ECEA1HKS010 1 S



C42 ECEA1HKA2R2 2.2


C44 ECUV1A105ZFV 1

C45 ECUV1H682KBV 0.0068



C48 ECUV1H223KBV 0.022 S


C50 ECEA1CKA220 22


Ref.No.




C54 ECUV1H020CCV 2P


C56 ECUV1H050CCV 5P


C58 ECUV1H682KBV 0.0068








C66 ECEA0JKA102 1000


C69 ECUV1H271KBV 270P






C76 CATZ681KC68 680P


C78 ECEA1AKA471 470


C80 CATZ681KC68 680P





C93 ECUV1H562KBV 0.0056

C94 ECEA1AKA101 100

C95 ECEA1EKA471 470


C97 ECEA1HKA4R7 4.7

C98 ECEA1CKA220 22


C101 ECUV1H562KBV 0.0056

C102 ECEA1EKA221 220

C103 ECEA1AKA470 47

C104 ECUV1E104ZFV 0.1

C105 ECEA1AKA101 100

C106 ECUV1A105ZFV 1



C109 ECUV1H682KBV 0.0068

C110 ERJ3GEYJ102 1K

C122 ECUV1A154KBV 0.15

C123 ECUV1A474KBV 0.47


C125 ECUV1H100DCV 10P S



C136 ECUV1H020CCV 2P



(OTHERS)

RY1 DCR000105H7 RELAY

SW1 DETP1200017 SWITCH

VC1 CR01020RRT8 TRIMMER CAPACITOR

28.2. Handset

28.2.1. CABINET AND ELECTRICALPARTS

Ref.No.


101 PQJT10182Z CHERGE TERMINAL

102 PQGT16254Z NAME PLATE (for KX-TC2000NZB)

102 PQGT16258Z NAME PLATE (for KX-TC2000NZF)

58


Ref.No.


102 PQGT16256Z NAME PLATE (for KX-TC2000NZW)

103 PQKF10535Z1 REAR CABINET (for KX-TC2000NZB)

103 PQKF10535Z2 REAR CABINET (for KX-TC2000NZF)

103 PQKF10535Z5 REAR CABINET (for KX-TC2000NZW)

104 PQKK10124Z1 BATTERY COVER (for KX-TC2000NZB)

104 PQKK10124Z2 BATTERY COVER (for KX-TC2000NZF)

104 PQKK10124Z5 BATTERY COVER (for KX-TC2000NZW)

105 PQKM10510T1 FRONT CABINET (for KX-TC2000NZB)

105 PQKM10510T2 FRONT CABINET (for KX-TC2000NZF)

105 PQKM10510T5 FRONT CABINET (for KX-TC2000NZW)

106 PQSA10130Z ANTENNA (for KX-TC2000NZB/F)

106 PQSA10130Y ANTENNA (for KX-TC2000NZW)

107 PQSX10191Z KEYBOARD SWITCH (for KX-TC2000NZB/F)

107 PQSX10191V KEYBOARD SWITCH (for KX-TC2000NZW)

108 PQXA36ASVC BATTERY

109 FH1T1200011 CUSHION, URETHANE FORM

110 CG2P1200021 SPEAKER

111 FE4T1200019 SPEAKER NET

112 FH2T1200012 BUZZER SHEET

113 PQHR10896Z LIGHT PIPE

28.2.2. MAIN P.C.BOARD PARTSRef.No.


PCB100 PQWPC2000ALR MAIN P.C.BOARD (RTL)

(ICS)

IC1 SA133122409 IC

IC2 SA138780A05 IC

(TRANSISTORS)












(DIODES)



DV1 BC6K0025101 DIODE(SI)

ZD1 BC4579C1005 DIODE(SI)


(LEDS)







(COILS)

L1 PQLQZKR68J COIL

L2 PQLQZM120J COIL

L3 PQLQZM120J COIL

L4 PQLQZK120J COIL

L5 PQLQZK120J COIL

L6 PQLQZK1R8J COIL

L7 SH590121N75 COIL

L200 PQLQZM1R2J COIL

DPX1 BDFL0083012 COIL

Ref.No.


(CERAMIC FILTERS)

CF1 BDFA107MA07 CERAMIC FILTER

CF2 BDFJ0455E00 CERAMIC FILTER

(TRANSFORMERS)





(CRYSTAL OSCILLATORS)


X2 BD8Z3276800 CRYSTAL OSCILLATOR


(RESISTORS)

R1 ERJ3GEYJ331 330

R2 ERJ3GEYJ153 15K

R3 ERJ3GEYJ682 6.8K

R5 ERJ3GEYJ103 10K

R6 ERJ3GEYJ103 10K

R8 ERJ3GEYJ224 220K

R9 ERJ3GEYJ823 82K

R10 ERJ3GEYJ331 330



R13 ERJ3GEYJ123 12K

R14 ERJ3GEYJ153 15K

R16 ERJ3GEYJ103 10K

R17 ERJ3GEYJ103 10K

R18 ERJ3GEYJ103 10K


R21 ERJ3GEYJ683 68K

R23 ERJ3GEYJ683 68K


R25 ERJ3GEYJ683 68K

R26 ERJ3GEYJ103 10K



R30 ERJ3GEY0R00 0


R35 ERJ3GEYJ473 47K

R36 ERJ3GEYJ202 2K

R37 ERJ3GEYJ102 1K

R38 ERJ3GEY0R00 0


R40 ERJ3GEYJ101 100

R41 ERJ3GEYJ563 56K

R42 ERJ3GEYJ223 22K


R44 ERJ3GEYJ393 39K




R48 ERJ3GEYJ223 22K

R49 ERJ3GEYJ473 47K




R53 ERJ3GEYJ820 82


R55 ERJ3GEYJ221 220


R57 ERJ3GEYJ102 1K

R58 ERJ3GEYJ102 1K



R61 ERJ3GEYJ331 330


R63 ERJ3GEYJ103 10K

R64 ERJ3GEYJ103 10K

R65 ERJ3GEYJ331 330



R68 ERJ3GEYJ103 10K


59


Ref.No.



R73 ERJ3GEYJ105 1M




R77 ERJ3GEYJ103 10K


R79 ERJ3GEYJ105 1M

R80 ERJ3GEYJ105 1M

R82 ERJ3GEY0R00 0

R83 ERJ3GEY0R00 0

R84 ERJ3GEYJ105 1M

R85 ERJ3GEYJ102 1K



R93 ERJ3GEYJ103 10K


R95 ERJ3GEYJ393 39K

R96 ERJ3GEY0R00 0


R98 ERJ3GEYJ475 4.7M


R101 ERJ3GEY0R00 0

R102 ECUV1H683ZFV 0.068



R106 ERJ3GEYJ820 82


R108 ERJ3GEYJ102 1K

R109 ERJ3GEYJ102 1K

R110 ERJ3GEYJ102 1K

R111 ERJ3GEYJ102 1K

R112 ERJ3GEYJ102 1K


R201 ERJ3GEYJ330 33

(CAPACITORS)

C1 ECEA1AKA470 47


C4 ECUV1H270JCV 27P






C12 ECEA1HKA2R2 2.2



C15 ECEA1CKA100 10



C18 ECEA1HKA2R2 2.2







C28 ECUV1H682KBV 0.0068

C29 ECEA1HKA2R2 2.2








C37 ECEA1HKS010 1 S





C42 ECEA1AKA470 47

C43 ECEA1HKA2R2 2.2

Ref.No.


C44 ECUV1H105ZFV 1



C47 ECUV1H682KBV 0.0068

C48 ECEA1AKA470 47



C51 ECEA1CKA100 10





C56 ECUV1H050CCV 5P







C63 ECEA1AKA101 100

















C85 ECUV1H105ZFV 1






(OTHERS)

E101 CK15HC12G10 BUZZER

E102 CGAP1200019 MICROPHONE

E103 PQJT10183Z CHARGE CONTACT S

VC1 CR01020RRT8 TRIMMER CAPACITOR

BATT1 DCB002X1164 CONNECTOR

28.3. ACCESSORIES AND PACKINGMATERIALS

Ref.No.


A1 PQJA87S TEL CORD

A2 PQLV16ALZ AC ADAPTOR

A3 PQQX13660Z INSTRUCTION BOOK

P1 PQPP10104Z PROTECTION COVER (for BASEUNIT)

P2 PQPP10105Z PROTECTION COVER (forHANDSET)

P3 PQPK14094Z GIFT BOX

P4 PQPD10579Z CUSHION, AC ADAPTOR

60


29 FOR SCHEMATIC DIAGRAM

29.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.

2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.

Important Safety Notice:Components identified by mark have special characteristics important for safety. When replacingany of these components, use only the manufacturer´s specified parts.

29.2. Handset (SCHEMATIC DIAGRAM (Handset)) 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.

2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.

61


30 SCHEMATIC DIAGRAM (Base Unit)30.1. Base Unit

RX

TX+5V

+5V

0V

0V

+12V

0V

+12V

0V

0V

+12V

+12V

+5V

13V to 5VWhile charging

1Vp-p8MHz

IC3D

IC3A

IC2

IC3C

IC3B

ADAPTOR 120V AC 12VDC 200mA

CHG D

TX D

VCC

HOOK

OSCO

OSCI

CHG LD

DTMF1

DTMF2

DTMF3

DTMF4

PAGE

RXDATA

CLOCK

DATA

POW F

TEST

DTMF0

P MUTE

RESET

COUT1

AGC CIRCUIT

AGC

CIRCUIT

PULSE

DAIL

LIMITED

CURRENT

STROBE

CNDET

VTX

bit1bit0bit2Country

01 0New Zealand

CHARGE--From H/S --------------

To H/S ----------

TP

TP

TP

TP

TP

TP

TP

TP

CHARGE+

TP

TP

TP

R406

100K

R405100K

R195

4.7K 1/4w

Q25

C135103C0603

ZD95V6

D\362

C136103C0603

+C102220UF/25VEC10/5

R201

82K

R1531MR0603

R2021.3K

R407

4.7K

C122154C0603

Q401

D8

D10B

Q403

R16647

R0603

R197

22KR0603

R402

100K

R409

820K

C120NA

C0603

R203

360KR0603

D11

C124

224C0603

C121NAC0603

ZD4

8V2

R41010K

Q402

C401

104

ZD12

15V/0.5WZD7.5

C104104C0603

Q24

ZD1015V/0.5WZD7.5

C64104

C0603+

C661000uF/6.3V

EC10/5

R57220KR0603

R6410K 1/4WR10

R88 10KR0603

C63103C0603

X2

7.952 MHzXTAL\10

C67

22PC0603

L1112UH

LED1

19-21VGC/TR8 GREEN

CHARGELED

L412uHL5

C76680P 500VCC6\5

D1D\362

JK1

LINE JACK 4CLINE\JK1

1234

RY1VB500 OHM

RY1

T76 1

2

4 3

5

C77100PC0603

C96103C0603

ZD8ZD7.5

R1451KR0603

+

-

12

1314

411

Q6

JK2JACK DC

ZNR1270V

ZNR\7K

Q20

L312uHL6/5

R89 10KR0603

R83 10KR0603

R84 10KR0603

R59100KR0603

R58220R0603

R8647KR0603

R105

5.6KR0603

C75223C0603

L6

12uHL5

C80680P 500VCC6\5

R1200

R0603

R144

10M R10

R107240 2W

R740RR0603

C6522PC0603

Q7

L712uHL7.5

L512uHL7.5

L8D6

JUMPERL10

L9JUMPERL7.5

R401

1KR100

2K2R0603

+

C95470UF\25V

EC10\5

+

C94100UF\10VEC8\2.5

R118120 1/2W

R10

C99103C0603

R10622 1/4WR5.08

R14222 1/4WR10 Q18

R18056KR0603

R1084K7

R0603

R11422K

R0603

R109330KR0603

+

C78470UF/10V

EC10/5

Q21

R403

100K

C402

224

ZD34V7

D\362

ZD54V7D\362

R111470

R0603

R16710KR0603

C83NAC0603

R11556KR0603

R87 4.7KR0603

Q11

R13339R

R0603

D4047.5V

R408

10K

R122

360RR0603

C85224 X7R

C0603

R126200R

C90474 16v X7R

R404100K

+

C403

NA

C92

104C0603

R1415K1R0603

R129

6.2KR0603

R12312K

R143

510KR0603

R148

10KR0603

R1491K8R0603

D72700VMPC28/28

R11982K

R0603

+ C97

4U7/50VEC5\5

R150

510KR0603

C101

562C0603

Q19

+

C9822uF\16VEC5\2.5

R6022KR0603

R14615KR0603

D2

D10B

R184

10M R10

D4

D10B

D3

D10B

R128NAR10

R127NAR10

R139NAR0603

R157

NAR0603

R117NA

R0603

Q16NA

C88

NAC0603

Q13

R177NAR10

R134

NAR0603

C84

NAC0603 Q12

NA

R172

22KR10

R140NAR0603

C123

474C0603

Q15NA

R130NA

R0603

R124NA

R0603

R138NAR0603

R181330R0603

C86NA

C0603

R159100KR0603

R137NAR0603

R158NAR0603

R1600R0805

R1610R0805

R1160

R0603

C1081040603

R82 10KR0603

R93NAR0603

R76NA

R0603

R971KR0603

C107104

R1121KR0603

R94100KR0603

R11333/1WR12.5

C93562

C0603

C106105C0603

R78 39K R0603R77 20K R0603R75 10K R0603

+

-

3

21

411

R81 160K R0603R79 82K R0603

C69270PC0603

R1044K7R0603

R90

270KR0603

R96330KR0603

C70223C0603

C72223C0603

R10322KR0603

R953K9R0603

C73104

C0603

C74104C0603

+

C105100UF/10VEC5/2.5

ZD222V/1WZD7.5

C82104

C0603

R179NAR0603

R178NAR10

C79104

C0603

123

56789

11121314

2827262524232221201918171615

4

10

XOUTXIN

TEST

P66P65P64P63P62

P60P77P76VSS

VDDRSTP10P11P12P13P14P15P16P17P72P73P74P75

P67

P61

ZD122V/1WZD7.5

SW1PAGESW2P

R68100KR0603

IC5

Q10

R63NAR0603

D5

D10B

+

C91NAEC5\5

R110100KR0603

R62100KR0603

+

-

10

98

411

+ -

5 67

411

R185100KR0603

R131

100KR0603

R15210M

R10

R132

2K2R0603 Q14

Q17

R85 10KR0603

R80 2K2 R0603

R183

10M 0805VCPU

RING DET

VREG

AGC1

VREGVB

AGC2

VREG

VREG

RF-DATA

RX DATA

TX DATA

EXPO

COMP

VCPU

RINGDET

PMUTE

CR-DET

VREG

CHAG-CNTL

CHAG-CNTL

VTX

RF-STB

A

JK1 PIN2

RF-CLKPMUTE

AGC2AGC1

VB

KX-TC2000NZB/NZW/NZF SCHEMATIC DIAGRAM (Base Unit)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

62

30.2. RF Unit (Base Unit)

RX

TX

KX-TC2000NZB/NZW/NZF SCHEMATIC DIAGRAM (Base Unit)

4.4V455kHz10.695MHz

2.1V

4.8V

0V

0V

IC1

VREF

IST Mix IN

VCC2

VCO CONT

VCO1

VCO2

C-RECT

RX CP

TX CP

PLL GND

TX IN

VCC3 LO1 LO2 S-OUT CLK DATA STB FL-OUT

FL-IN

COMP

OUT C-NF

AF

OUT

REF

IN

AF-IN

REF

OUT

EXP OUT

REC IN

RO1

RO2

BAT. ALM

RSSI

DATA O/P

DATA I/P

FIL-INF OUTDET.

OUT

QUADIF

OUT

GND2DECIF

IN

VCC12ND

MIX

OUT

N-REC2ND

MIX

IN

E-REC

IST

MIX

OUT

IFT\7

RX DATA

GND

CR-DET

RF-DATA

VTX

TX DATA

RF-STB

COMP

EXPO

VERG

RF-CLK

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

R1956KR0603

R32

1MR0603

R20180KR0603

C23103

C0603

R12100R0603

C109

6800PC0603

+ C5022U/16VEC5/5

R156

47R0603

C136

2PC0603

R182K2R0603

R15547R0603

R15447

R0603

+ C10347UF/10VEC5/5

C47103C0603

C2104C0603

Q1

R2

330R0603

R510KR0603

R48K2R0603

R2410K

R0603C43104

C0603

L13.3UHL10

R5415KR0603

C36100P

C0603

VC120P

C4027P

C0603

R810K

R0603

C28104C0603

C52223

C0603

C29104C0603

R26150KR0603

ZD11

15V/0.5WZD7.5

R1362K

R0603

R513K6R0603

R44100K

R0603

R49

75KR0603

C34470PC0603

R1731KR10

R1701K

R0603

R1741KR10

C12103C0603

T11431IFT\7

13

R50

8K2R0603

DPX10830DUP\5P

342 51

AN

TG

RX

GT

X

RX

TX

R315K

R0603C6104C0603

R2127KR0603

C33100P

C0603

T51436IFT\74

5

3

2

1

R147R0603

C45682C0603

T61961IFT\7

+

C41NAEC5/2.5

C5312P

C0603

Q3

R4310KR0603

DV1VCD2

C61104C0603

R3147KR0603

R38100KR0603

R36220KR0603

R30100KR0603

X111.15MHZXTAL\10A

C542P

C0603

C44105C0603

C37150P

C0603

R25

68KR0603

C24223C0603

R52NAR0603

L101.2uHL5

+

C147UF/10VEC5/2.5

C3518P

C0603

C11473

C0603

C8104C0603

CF2450KFILTER\2

1 5

2 3 4

+

C381U/16V

EC5/5

C7102C0603

CF1 10.7MHZFILTER\11 3

2

R14

R060310K

C267PC0603

C1627P

C0603

R23100KR0603

+

C152U2/50VEC5/5

+ C302U2/50VEC5/2.5

C18473

C0603

C133NAC0603

+

C1710U/16VEC5/2.5

C19102

C0603

R15

R06035K6

C31103C0603

T21437

4

6

3

2

1

+C20

2U2/50VEC5/2.5

R1615KR0603

C27103C0603

C55103C0603

R224K7

R0603

+

C422U2 50VEC5/5

R41

R060347K

R462K2R0603

R330R0603

C39103C0603

39

40

41

42

24

22

23

21

43

44

45

46

47

48

1 2 3 4 5 6 7 8 9 10 11 12 13 14

20

19

18

17

16

15

2526272829303132333435363738

Q5

Q2

C6027P

C0603

R45470KR0603

C254700PC0603

C48

223C0603

C5739P

C0603

C6239P

C0603

C5939PC0603

R562K2

R0603

R37

100R0603

R4822KR0603

C58682C0603

R4022KR0603

C51103C0603

C10

470PC0603

C9470PC0603

R10

39KR0603

R7330KR0603

R610KR0603

+

C322U2/50VEC5/5

C12510P

R175NAR0603

R1980R0603

C4103C0603

C22103C0603

ANT1ANTENNAPAD3

R5315KR0603

R4210KR0603

R35100R0603

C5NAC0603

C46102C0603

C14NAC0603

C565P

C0603

R55680R0603

Q4

C49103C0603

C1101KC0603

CH+

A

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

63

31 SCHEMATIC DIAGRAM (Handset)31.1. Handset

IC2

TALK

RECHG

CHARGE DET

RX DATA

RESET

TALK LED

LOW LED

BACKLED

BUZ CNTL

ALERT

RX PWR

DATA

CLOCK

COL0

ROW1

ROW2

ROW3

ROW4

COL1

COL2

COL3

TX DATA

ROW5

ROW0

TEST

XIN

XOUT

VDD

CR-DET

bit1bit1bit1Ccountry

10 0New Zealand

ROW0

ROW5

ROW3

ROW2ROW1

ROW4

ROW5

ROW4

ROW3

ROW2

ROW1

ROW0

CHG+

CHG-

VBAT

TP

TP TP

TP

TP TP TP

R1111K0603

R104NAR0603

L7 120 OHM COIL SMD 0805

Q12

X33.992 MHZXTAL\10

+ C63100uF/10VEC5\2.5MINI

R64 10K R0603

C68NAC0603

C67NAC0603

R561K2R0603

R54100KR0603

R74 100K R0603

R841M

R0603

C71

33PC0603

R78 100K R0603

R68 10K R0603R70 2K2 R0603

R75 100K R0603

R60 2K2 R0603

R62 2K2 R0603

R66 2K2 R0603

R57 1K R0603

R59 2K2 R0603

R55220R0603

BZ1BZBZ12

12

C74473C0603

R87100KR0603

R86100KR0603

R851KR0603

C69104

C0603

C72104C0603

D1

D\362

ZD35V6 0.5WD\362

R65 330

R0603

R76 100K R0603

R63 10K R0603

R67 2K2 R0603

R61 330

R0603

R72NAR0603

R801MR0603

R58 1K R0603

C70

33PC0603

LED5 GREENLED\SQ

R830

R0603

R711MR0603

LED6 REDLEC\SQ

R79NAR0603

R73NAR0603

R811MR0603

Q7

BATT13V6/300mACNT2P\2.5

12

C73104C0603

Q11

R77 10K R0603

LED1GREENLED\SQ

LED2GREENLED\SQ

LED3GREENLED\SQ

LED4GREENLED\SQ

L5

12uHL7.5

Q9

32313029

27262524

1234567891011

28

33

1213141516171819202122

23

34 35 36 37 38 39 40 41 42 43 44

P13P12P11P10

P50P67P66P65

P73P72P71P70P07P06P05P04P03P02P01

P51

P14

P00

TE

ST

RE

SE

TX

INX

OU

TV

SS

NC

P60

P61

P62

P63

P64

P15

P16

P17

P20

XT

INX

TO

UT

VD

DP

77P

76P

75P

74

K6 PAUSE1 2

K9 01 2

K12 81 2

K18 21 2

K2 FLASH1 2

K15 51 2

K7 CH1 2

K10 #1 2

K13 91 2

K16 61 2

K19 31 2

K4 REDIAL

KP\RO\4.5C

1 2K1 RINGER1 2

K22 DIRT1 2

K21 AUTO1 2

K20 TALK1 2

K3 LOUD1 2

K5 PROG1 2

K8 *1 2

K11 71 2

K14 41 2

K17 11 2

X232.768KHzXTAL\2R

C6515PC0603

C6615PC0603

L312uH

L5

C64103C0603

L4

12uHL7.5

L212uHL7.5

R820R

R0603

R5382R0603

Q8

R69 2K2 R0603

R105

10K R0603

R112 1KR0603 D3

ZD110V 0.5W

ZD7.5

C86

104C0603

C84104C0603

RX DATA

RF-CLKRF-DATA

RSSI

VOL1

VOL2TX DATA

VTX

RF-STB

(LOW BATT)IC1#21

3.9V0V

0V

0V

3.9V

3.9V

0V

3.9V to 0VWhile charging

0V to 5V While charging

2Vp-p

4MHz

3.5Vp-p

32.768kHz

KX-TC2000NZB/NZW/NZF SCHEMATIC DIAGRAM (Handset)

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

64

31.2. RF Unit (Handset)

RX

TX

KX-TC2000NZB/NZW/NZF SCHEMATIC DIAGRAM (RF Unit (Handset))

IC1

VREF

IST Mix IN

VCC2

VCO CONT

VCO1

VCO2

C-RECT

RX CP

TX CP

PLL GND

TX IN

VCC3 LO1 LO2 S-OUT DATA STB FL-OUT

FL-IN

COMP

OUT C-NF

AF

OUT

REF

IN

AF-IN

REF

OUT

EXP OUT

REC IN

RO1

RO2

BAT. ALM

RSSI

DATA O/P

DATA I/P

FIL-INF OUTDET.

OUT

QUADIF

OUT

GND2DECIF

IN

VCC12ND

MIX

OUT

N-REC2ND

MIX

IN

E-REC

IST

MIX

OUTIFT\7

VR8

RX DATA

GND

CLK

VOL1

VOL2

VB

RSSI

IC2-22

RF-STB

RF-DATA

RF-CLK

VTX

TXDATA

ADDCircuit

TP

TP

TP

TP

TP

VBAT

TP

TP

TP

TP

TP

TP

TP

TP

TP

R99

4K7R0603

R2168KR0603

C60

27PC0603

C80103C0603

C79103C0603

C78103C0603

REC1SD153SIP2

R97

R0603150K

C22103C0603

R10330R0603

R1081KR0603

R1091KR0603

R1101K

R0603

MC1

FN5546MIC

+

C5110U/16VEC5/2.5

R362KR0603

C88104C0603

L200

1.2UH

C20033PC0603

R200

R060347K

Q200

C20168PC0603C203

CAPC0603

C202120pC0603

R201

R060333R

R1072K2R0603

R102683R0603

C85105C0603

Q1

C2104C0603

C50103C0603

R510KR0603

R1330R0603

C52103C0603

R36K8R0603L1

0.68uHL5

R150

R0603

C44105

C0603

R2610K

R0603

C38100PC0603

VC120P

C4127P

C0603

C32 104C0603

R6 10K

R0603

R18

10KR0603

R20NA

Q3NA

Q2

C27104

C0603

C53223

C0603

R29

3.3KR0603

C28

6800PC0603

R49

47KR0603

R45100K

R0603

R512K7R0603

C23102C0603

R1312KR0603

C30104C0603

R1610KR0603

R982K

R0603

R50

8K2R0603

T11431IFT\7

13

C35680PC0603

C427PC0603

C9103C0603

R215K

R0603

DPX10830DUP\25P

342 51

AN

TG

RX

GT

X

RX

TX

R10682R0603

T51856IFT\74

5

3

2

1C5104C0603

C34100PC0603

R194K7R0603

R8220KR0603

C10NAC0603

Q5C5422P

C0603

+

C4247U/10VEC5/2.5

T6 1960

IFT\7

C476800PC0603

C61104C0603

DV1

VCD2

R4439KR0603

R35 47KR0603

R39220KR0603R41

56KR0603

X110.245MHZXTAL\10A

C565P

C0603

R34220KR0603

C39150P

C0603

C46103C0603

R28

100KR0603

C21

223C0603

+

C147UF/10VEC5/2.5

L61.8uHL2.5

C3618P

C0603

C8473

C0603

C7104C0603

+

C371U/16VEC5/2.5

CF2455EFILTER\2

1 5

2 3 4

C6102

C0603

R2568KR0603

C1327P

C0603

+

C122U2/50VEC5/2.5

C2422PC0603

CF1 10.7MHZFILTER\11

2

3

+ C292.2U/50VEC5/2.5

C16473

C0603

+

C1510U/16VEC5/2.5

C17102

C0603

C26103C0603

R1415KR0603

T31440

4

6

3

2

1

R11

R06035K6

+

C182.2U/50VEC5/2.5

R1710KR0603

R380

R0603

R47

2K2R0603

R43

R0603100K

C55103C0603

R1010

R0603

R244K7R0603

+

C432U2/50V

EC5/2.5

C40103C0603

Q4

Q6

39

40

41

42

24

22

23

21

43

44

45

46

47

48

1 2 3 4 5 6 7 8 9 10 11 12 13 14

20

19

18

17

16

15

2526272829303132333435363738

C57 15P

C0603

C49223

C0603

R46430KR0603

R40100

R0603

R522.2KR0603

C6239PC0603

C5939PC0603

C14103C0603

R4222KR0603

C58103C0603

R4822K

R0603

R22NA

R910R0603

C77470PC0603

C76470PC0603

C75103C0603

R9310K

R0603

R95 39K

R0603

R94330KR0603

R960

R0603

R12220KR0603

C31103C0603

R103390KR0603

C89

?C0603

ANT1ANTENNAPAD3

R113NC

R0603

R984M7R0603

R371KR0603

R30

0R0603

C45

683 X7RC0603

+C48

47U/10VEC5/2.5

C33104C0603

R2368KR0603

455kHz3.9V 0V

10.695MHz

2.1V

RX

3.9V

3.1V(In Talk Mode)

TX 0V

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

65

31.3. Memo

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

66

32 CIRCUIT BOARD (Base Unit)32.1. Component View

IC5

DC

1

D7 L7

L5C

H-

CH

+

R11

8

R19

5

GN

D3

GN

D7

R14

2

R10

6 R17

3

R17

4L1

1

ZD

4

ZD

1Z

D2

ZD8

L8L1

L9

D3

D5

D4

D2

C76

C80L4 L6

ZN

R1

D6

AN

T

JK1

R10

7

R113

T7

RY

1

C78

DV

1V

C1

Q12

Q10

C91

C97

C10

2

C32

C15

C40

3

T1

CF

2

X1

C41

C38

C50

C94

C98Q

24

C95

C10

3

T2

Q1

T6

T5

GND

2 C1

X2

D404

J116

Q19

Q18

J156L10

R152

R128

R127

R144

J157

J149

J139

J111

J181

J15

J1

J124

J172

J102

J171

J106

R18

4

J87

C10

5

J173

J164

J145

J109

J178

J175 G

ND

4J1

76

J136

J177

J163

J170

J162

J112 J1

22J1

40

J126

C10

4R

172

R64

G7

C10

4

J168

J160

J134

J174

CF1

J117

J113

J153J95

J155

J166

L3J115

J73

J159

C66

C30

C17

C42

DP

X1

C20

SW

1

Q15

KX-TC2000NZB/NZW/NZF CIRCUIT BOARD (Component View (Base Unit))

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

67

32.2. Flow Solder Side View

IC3

IC2

IC1

R16

0

R16

1 C12

2

R12

0

ZD

3

D1

R13

1

ZD

10Z

D12

ZD11

R132

C96

C47

C53

C99

R145

R55

C62

C56 C57 C31

R49

R16

R14

C22

C6

C16

R2

C26

C7

R30

R31

R60

C44

R24

R23

C35

C109

R25 C33

C10

C18

C12R83

Q40

3

C67

C65

R153

R185

R94

R76 R63R158

R403

R405

R407R58

R409

C402

R404

C401R402

R401

R146

R89

C108

C85

C90R129

C92R119

R122

LED1

R197

R68

C10

7

1

1

1 Q40

1

Q40

2

R41

0

C13

5

R40

8

R87

R85

R81

R79

R78

C10

6

C88

R57R

97R

180

C73

R14

1

R13

4

R12

3

R11

5

R15

9

R15

7

R13

3

R12

6

R77

R75

R84

R59

R82

Q7

Q16

Q13

Q11

R62

C64

C134R6

R19R20R21

R14

3

R109

C69

R95

R104

R96 C70

R178

R177R140

C82

C84

C74 C75

R105

R179

R100

C86

R166

R117C120

R88

R32C36

R26

C40

R80

C48

R15

C59

R56

R53

R42

C49

R175C5 C14C

136

R54

R51

R15

5

R11

0

R11

2

C10

1

R15

0

R13

9

R148

R149

R183

R86

R17

0

R44

C54

C61

R50

C11

R10

C4

C28

R3

Q21

R5

R4

R74

R16

7

R40

6

R1

R15

6

R93

C25

R7

C2

C8

C9

R22

C43

C45

C37

C34

C93

C79

C12

1

C39

C12

5

R13

R8C24

R12

C23

C29 C

19

C27

R36

C52

C46

C13

3

Q14

Q17

Q3

D11

Q25

C11

0

Q4

Q5

Q6

Q20

Q2

C51 R154R40

R52R45R38

ZD5

R116

R13

0

R12

4

R138

R137

C63

R10

3

R11

4

R10

8

R90

C72

C77

R18

C58

C60C55

R198

R46

R41

D8

R33 R48

R37R35

R43

R11

1C

123

C12

4R

181

C83

RING DET(CPU: 24)

XOUT(CPU: 1)

VDD (CPU: 28)

RST(CPU: 27)

RX DATA(CPU: 10)

RX DATA(RF IC: 23)

CHG DET(CPU: 18)

TX DATA(CPU: 17)

CHG LD(CPU: 26)

DET OUT(RF IC: 27)

TX-VCO2nd Mix(RF IC: 36)

IF IN(RF IC: 32)RX-VCO

+12V

RINGTIP

GND

TXPOWER TXGNDTX DATA (DV1)

KX-TC2000NZB/NZW/NZF CIRCUIT BOARD (Flow Solder Side View (Base Unit))

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

68

33 CIRCUIT BOARD (Handset)33.1. Component View

IC2

T5

T3

CF

2CF1

DP

X1

T6

T1

BZ

1

X3

X2

X1

RE

C

C37

C42

C56

C51

L1

L200

L6

VC

1C

43

C29 C18

C12

C15

L3

L2

C80

R99R96

C64C71

R107R58

R19R105

R48

R22

R17

R20

C78

R46

R5

C9

C16

C1

R94

R101R14

R106

R93R11

C31

C77

R95

R63

D3 R55

R109

DV1

Q1

R3

R61

R98

C58

C39

R67R66R57

R77

R12

R70

C45R30

C46

R37

R86R85

C72C69

R71

R79

R69 R

84C

70

R73

R81

R83

R80

R72

R10

3C

79C

33

C14

R29

R10

2R

23

R11

1C

74R

82

R78

R74

C73

R87

R60R64

C84

R68

R65

R75R53R76

D1

L7

L4L5

R36

Q4

R39

Q11

C86

ZD

3

CH

G+

CH

G-

ZD

1

BAT

T1

C48

Q9

C63

R59

R11

2

R62

R56

Q12

Q8

Q3

Q7

Q2

R54

R6

R8

C30

R28

C38

C23

C76

R21

C26

C27

R10

8

R11

0C

8

C75

C34 C32

R16

R18

R42

C66

C65

C68

C67

RSSIBattery Low

VDD (CPU: 40) CHG DET(CPU: 37)TX DATA

(CPU: 36)

TX DATA (DV1)

KX-TC2000NZB/NZW/NZF CIRCUIT BOARD (Component View (Handset))

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

69

33.2. Flow Solder Side View

IC1

21 4

5

3 6 9 #

PAU

SE

CH

MIC

1

78

LOU

DP

RO

G

RE

DIA

LR

ING

ER

0

FLA

SH

TALK

R2

R11

3

R13

C28

R25

R34

R35

C47

C85

C22

C5

R1

C24

C52

Q6Q5

C59

C53

C54

C17

C20

0

C3

R97R

43

R47

C4

R10

C2

C6C88

C44

C41

C61R50

R44R40

R49R45

R41

C40R24

R51

C57

R38

C36C35

R26

C49

C89C203

C202C201

R200

Q200

C10C55

C50C60

C62R52

R201

C13

C21

R9

C7

DIR

TA

UTO

LED

6

LED

3

K11

LED

4

LED

1

LED

5

LED

2

TXPOWER 2nd Mix(RF IC: 36)

TXGND

TX VCO RX VCO IF IN(RF IC: 32)

V Bat(RF IC: 33)

KX-TC2000NZB/NZW/NZF CIRCUIT BOARD (Flow Solder Side View (Handset))

KX

-TC

2000N

ZB

/K

X-T

C2000N

ZW

/K

X-T

C200

0NZ

F

70

71


GKXTC2000NZBKXTC2000NZWKXTC2000NZF

telephone equipment kx-tc2000nzb kx-tc2000nzw kx...

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