Panasonic KX-TC1205RUS, KX-TC1205RUW, KX-TC1205RUB, KX-TC1205RUF manual Schematic Diagram Handset

Page 62

27 SCHEMATIC DIAGRAM (Handset)

27.1.

Handset

+

L2

12uH

R53

C63

C64

C65

L4

R54

R55

82

100uF/10V

103

100K

39

R0603

EC4\2.5

C0603

15P

R0603

R0603

MINI

C0603

Q7

STO-23

C66

X2

C67

C68

C84

LED1

LED4

NA

NA

102

GREEN

GREEN

15P

32.768KHz

C0603

C0603

C0603

TP

LED\SQ

LED\SQ

C0603

XTAL\2R

R56

3.5Vp-p

2K2

1

LED2

LED3

R0603

GREEN

GREEN

ALERT

2

32.768kHz

R57

3K3

R0603

LED\SQ

LED\SQ

BZ1

BUZ CNTL

R58

47

R0603

BZ

R112

1K

R0603

CHARGE DET

BZ12

VOL1

TX DATA

TX DATA

D2

Q8

VDD

ROW5

R59

2K2 R0603

ROW5

VOL2

D\362

SOT-23

ROW4

R60

2K2 R0603

ROW4

D3

TALK

34 35

36

37 38

39 40

41

42 43

44R105

10K R0603

RF-STB

D\362

R61

330

LED5

GREEN

R0603

P14 P15P16P17P20XTIN

XTOUT VDD P77 P76

P75P74 P73

LED\SQ

ROW3

R62

2K2 R0603

ROW3

33

1

DATA

R63

10K R0603

RF-DATA

RECHG

32

2

CLOCK

R64

10K R0603

R65

330

ROW2

R66

2K2 R0603

ROW2

31

P13

P72

3

RX PWR

RF-CLK

R0603

LED6

RED

ROW1

R67

2K2 R0603

ROW1

30

P12

P71

4

RX DATA R68

10K R0603

VTX

LEC\SQ

ROW0

R69

2K2 R0603

ROW0

29

P11

P70

5

BACKLED

R70

2K2 R0603

RX DATA

P10

3.9V P07

28

6

TALK LED

0V to 5V

27

P51

IC2

P06

7

LOW LED

R71

R72

R73

26

P50

QFP-44P

P05

8

COL3

R74

100K

R0603

NA

1M

NA

While charging

25

P67

P04

9

COL2

R75

100K

R0603

R0603

R0603

R0603

24

P66

P03

10 COL1

R76

100K

R0603

RSSI

R77

10K R0603

CR-DET

23

P65

VSS XOUT XIN RESET

P02

11 COL0

R78

100K

R0603

P64

P01

62

0V0V

P63 P62 P61 P60 NC

TEST P00

22 21

20

19 18

17 16

15

14 13

12

2Vp-p

XOUT XIN RESET TEST

R79

R80

R81

3.9V

R91(LOW BATT)

4MHz

K1

RINGER

K2

FLASH

K3

LOUD

K4

REDIAL

R82

0

1

2

1

2

1

2

1

2

1M

NA

1M

R83

X3

R0603

R0603

R0603

KP\RO\4.5C

0

4.0 MHZR0603

K5

PROG

K6

PAUSE

K7

CH

R0603

XTAL\10

1

2

1

2

1

2

0V

ROW5

K8

*

K9

0

K10

#

R84

1

2

1

2

1

2

1M

TP

C69

R0603

ROW4

CHG+

104

K11

7

K12

8

K13

9

C70

C71

L4

C0603

1

2

1

2

1

2

H12u

D1

R85

33P

33P

L7.5

1K

R86

R104

ROW3

D\362

R0603

100K

NA

L3

C0603

C0603

K14

4

K15

5

K16

6

C72

R87

R0603

R0603

12uH

1

2

1

2

1

2

104

100K

L4

C0603

R0603

ROW2

TP

TP

K17

1

K18

2

K19

3

3.9V to 0V

1

2

1

2

1

2

ROW1

C86

While charging

K20

TALK

K21

AUTO

K22

DIRT

104

C73

1

2

1

2

1

2

C0603

ZD3

Q9

ROW0

ZD1

5V6 0.5W

104

SOT-23

C0603

ZD7.5

10V 0.5W

Q11

R111

D\362

SOT-23

1K

L7 120 OHM COIL SMD

R0805

R0603

C74

VBAT

473

C0603

TP

TP

TP

CHG-

L5

12uH

L7.5

2 1

0V BATT1

3.9V

KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (Handset)

3V6/300mA

CNT2P\2.5

KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF

Image 62

Contents KX-TC1205RUB KX-TC1205RUW KX-TC1205RUS KX-TC1205RUF Contents Accessories and Packing Materials Battery Recharge Battery informationBattery Replacement Location of Controls Base Unit HandsetConnection KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Adding Another Phone Operations Making Calls Answering CallsKX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Flash Button Disassembly Instructions Show in Fig To remove RemoveRear Cabinet Battery compartment cover Troubleshooting Guide Check Power Bell Reception Check Battery Charge Check Link CPU IC2 RF IC IC1Refer to Adjustment P.27 Check Handset Transmission Check Handset ReceptionAdjustments Base Unit Test Mode Flow Chart Base UnitHow to change the channel AdjustmentAdjustment Standard Base Unit IC3Adjustments Handset Test Mode Flow Chart HandsetHow to change the channel Adjustment IC1Adjustment Standard Handset Component ViewFlow Solder Side View Base Unit RF SpecificationHOW to Check the Handset Speaker Frequency Table MHz Explanation of CPU Data Communication STAND-BY TALK, Talk STAND-BYRinging Changing the Channel Ports for transmitting and receiving of data Block Diagram Base Unit IC1Block Diagram Handset IC1Circuit Operation OutlinePower Supply Circuit Reset Circuit Base Unit Charge Circuit Telephone Line InterfaceTransmitter/Receiver Base to HandsetHandset to Base Signal Route Reset Circuit Handset Circuit Operation HandsetBattery Low / Power Down Detector 18.1. IC2 19.1. IC2 Modification Procedure of Bridge HOW to Replace Flat Package ICProcedure PreparationCabinet and Electrical Parts Location Base Unit Cabinet and Electrical Parts Location Handet Accessories and Packing Materials Replacement Parts List Cabinet and Electrical PartsDiodesi ZNR1 ERJ3GEYJ514 PQXA36ASVC Battery ERJ3GEYJ202 Accessories and Packing Materials Handset Schematic Diagram Handset For Schematic DiagramBase Unit Schematic Diagram Base Unit Schematic Diagram Base Unit 26.1 Base Unit26.2 RF Unit Base Unit FILTER\2Schematic Diagram Handset 27.1 HandsetRF Unit Handset 450kHzKX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Circuit Board Base Unit IC1 IC4 IC2 IC3 Circuit Board Handset RX VCO TX VCO KXTC1205RUB