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10.7MHz 40MHz 60dBuVemf 1kHz/3kHz MOD
5 6 1 2 4 3 1

RXRF=-33.7dBm
1

RXRF=-39.8dBm RX RF=-18.5dBm RXRF=-19.2dBm
CF401 10.7MHz
1 2 3

R428 330 R426 NC R427
1

40MHz
ANTENA C452 M1000P DUP402 NC RFRX 1 3 IN VDD GND 2 RXGND
7

CF402
1 3 4 5 2

C451 16V10 IFGND

455KHZ

R429 1.0K

Z0.1

C445

C450

K0.1

C447

1

D403 D402 NC NC

!

C443 K0.01 OUT 4 RXVCO 43
4 7 3 1 VcapRX 1

R430 C448 NC

K0.1

RXRF=-46.2dBm TXRF=-3.6dBm
1

RXRF=-40.6dBm

NC

Z0.1

1 1

C449 J68P

30.3MHz MOD 2.15kHzdev

C446 1 Z0.1

ANT
1

T402 NC

C444

0

1

1

1

1

+

1

1kHz
NDTC 29
NOISE DTC

1

1.8uH

R431

L401

NC

C442 K0.01 42 41 40 39
1st MIX

1

38 37 36
GND1 VDD1

35 34 33

32 31 30

RXAF=-16.2dBm
R401 C401 220K J120P 28 27
1 1 1 1

1

1

R425 K4700P K0.022
1 1

T401

C441

1

1

C439 J18P

C438 NC

1

1
1

IN D401
1

C440

L403 0 C457
1

C453 0 R432 Z0.1 3 4 5
1

DUP401

1

10K

2nd MIX

R402 1K
1

C403 K0.01
1

SQ

FILTER

SQ

RXAF=-19.5dBm
DTCOUT R407 10K
1 1

44 45

1st LOCAL OSILLATAR

0.33uH

L402

C456 NC

TXRF=9.2dBm
RFTX C459
1

VDD GND GND

GND

2

2 5 1

5.5V REG 25mA max

FILTER TO SQ OUT PRE AMP RX-MUTE EXPANDER

C402J120P 26 25 24
1

R403 22K 0 R406 10K
1 1

NC
1

68
1

1

C454 K0.01

+0.5dB

C455

C458 NC

46 OUT 6 R423
1 LD(RX)

+

C404 R404 J680P 1
1

6

0

47 0 R421
1

RX PD LD(TX)

14 bit programmable counter 10 bit programmable counter

1

C407 K0.1 C410 K0.1
1

R405 33K
/8 E-DET ZAP

48 49
PLL

TX PD

23 22 21

1

R424

R422

6.8K

10K

2.2K 16V10 C432 K0.01 50 51 C431 G27P 11.15MHz
1 1

C408 K0.1
1

C405 C406 NC K2200P R409 R408 15K
1 1 1

C520 K0.01

R517 47

1

1

GND

GND3

R410 22K

C435 50V2.2

+

C517 K0.01

VR501 NC
1

C433

+

Q501 DTB123
3 1

C437 K0.22

C434 NC

C436 NC

Fin TX

14 bit programmable counter

C409 K0.047
1

0

1

3

1

1

C412 K0.1 20 19 18
LINE AMP COMP ZAP PE(GND) POWER DOWN 1

C411 K0.068

2

1

1

1

52 X401 53 SIG_OUT 54
SIG OUT SG OUT LD(TX/RX)

C430 G39P
1

Q503

R516 120K

1 1 2 3

TX_POWER

C519 K0.01

1 1

C DET

VDD

PLL_CLOCK
EN

C509

J22P

1 3

OUT VDD GND 2

TXGND

R510 NC
1

TXRF=5.8dBm
TXVCO T501
7 3 4

MIC MUTE

C414 K680P

CLK

POWER DOWN VDD2

R413 33K

DUP502 NC

TX_PWR_CONT

PLL_DATA

MCU

RX DATA OUT

R515 10K

55 56

DATA

SPLATTER FILTER

ATT(0/2dB)

LIMITTER MIC AMP

16 15
GND2

C413 K2200P

1

1

3

2

SIG_OUT

C426 K8200P

J82P

R511 12K

J47P
1

1

3 2 1

47K C427

C429

VDD

OSC OSC DRIVE GND F out

2 1 1 5 1

0

1

1

6 5 4

TXAF=-29.0dBm 1kHz
R503 C503 47K K0.1

R419 10K

IN

4

Q502

7

4

3

C424

1 1

PLL_EN

C428 NC

C515 2 C516 K0.01
1

C518 K0.01

C522 Z0.1

R508 220

1

4 6

GND R512 100 NC VDD IN 5
1

TXRF=2.8dBm
1 1

VD501

1

C508 K0.01

3
1

VDD GND

NC

IC303 NC

1

C505 J680P

C513 K0.01

C511 K0.01

R507 390

C510 NC

C504 K0.022

+

1

1

R506 3.3K

1

1

C502 K0.1

C521

1

1

1

1

1 2

A0 A1 A2 GND

VDD WP SCL SDA

8 R332 7 6 R333 5 Q303 NC
2 1 3 1 1

1

R502 680K

1

R505 47K

1

R414 2.2K

T502 PQLA7A9-M

NC

1

1kHz

3

1

OUT

C506 J22P

1

1 1 1

C418 NC

VOL402 20K

DUP501

2

3 T-C

R420

C514 K0.01

C507 J39P
1

1

2

TXAF=-25.8dBm

R417 6.8K

C419 K0.015

R416 33K

1 1

1

TXRF=8.5dBm 30.3MHz

TXRF=-4.2dBm

C501 NC
1

LCD301
R317 NC
1

NC 3 4

1

NC C327
1

R501 470K

1

2

3

4

5

6

7

8

9

10

11 12

1

CLE1

ALE1

WP1

WE1

IO03

IO02

IO01

IO00

TX DATA RA303 500Hz/1kHz 100K 5V
1 8

1

R337
PLL_CLOCK PLL_DATA

NC
TX_POWER

PLL_EN

CLE

ALE

FGND

R334 100K

IO3

IO2

IO1

IO0

WP

WE

R342 100K

1

TX_PWR_CONT

LA9 4S102 R340 4.7K

LEVEL_CONT

IC304

LINE_SZ

4S102

LA10 4S102

RESET

RELAY

1

1

23 VDD

GND

I/O 4

I/O 5

I/O 6

I/O 7

44 VDD

R/B

8

LA8

8

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

RE

CE

8

1

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

CAS

1 1 1

FVDD C329
1 1

Z0.1

1
CE1

2 COM2 SEG3

3 SEG4

4 SEG5

5 SEG6

6 SEG7

7 SEG8

8 SEG9

9 SEG10

10 11 12 SEG11 SEG12 VDD

13 14 GND TX-POWER-CONT

15 16 17 NO-USE NO-USE USE-CONT

18 19 20 NO-USE CHARGE (LINE-DC-DTC)

21 22 23 PLL-EN PLL-DATA PLL-CLOCK

24 25 26 SIG-OUT TX-POWER NO-USE

27 28 29 GND LINE-DTC1 LEVEL-CONT

30 LINE-DTC2

L305 0

C328 Z0.1

RE

R335 100K

IO4

IO5

IO6

IO7

1

3

CE

1

IO04

IO05

IO06

IO07

RE1

100 Q302 DTC143
RESET
2

99 98 97 UGND UTX

32 33 34 35 36 37 38 39 40 41 42 43

1

LINE SIEZER TX-DATA UART-TX WE RE VDD GND I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7

PA-GND SPP SPN VDDPA CDL-OUT L-OUT A-VDD LINE-IN LGS

L307
1

STOP
1 2

AUTO_PROG
2 1

HOLD_RNG
2 1 2

SP
1

KEYIN5

KIN5

WE1 RE1

R327 220
1

96 UGND1 UTX1 95 94 93 C325
1

1

L309
1

1

R326 220
IO00 IO01 IO02 IO03

SKIP
2 1 1

3
2 1

6
2 1

9
2 1

#
2

VOL_UP
1 2

KEYIN4

KIN4

92 91 90 89 88 87 86 85 84 83

Z0.1

IC301

J100P

C331

1

DC-IN CID-IN CID-IP CID-O MGS MIN A-GND HM-IN HM-GS VREF GND-PLL VDD-PLL RESET X-OUT VRTC GND

GREC
2 1 2

2
1 2

5
1 2

8
1 2

0
1

VOL_DOWN KEYIN3
2 1

KIN3 IO04

R311 47K 44 45 46 47 48 49 50
1 1

IO05 IO06

ERASE
2 1 1

1
2 1

4
2 1

7
2

TONE
1 2

LOCATOR KEYIN2
1 2

KIN2

IO07 WP1

CLE(FLASH2)

ALE(FLASH2)

1

1

UART-RX

BELL-IN

STB5

STB4

STB3

STB2

STB1

STB0

GND

VDD

GCHECK
2 1

2

1

KIN1

J100P

C334

1

L324
1

80 79 78

77 76 75

74 73 72

71 70 69

68 67

66 65 64

63 62 61

60 59 58

57 56 55
1

54 53 52 C322 Z0.1

X-IN

ANSWER KEYIN1

LED304

81

FLASH2

SP-LED

R325 1.2K

RX-DATA

CID-LED

82

CE(FLASH2)

INUSE-LED

WP ANS-LED KEY-IN5 KEY-IN4 KEY-IN3 KEY-IN2 KEY-IN1 KEY-IN0

POWER-DOWN

51

0
1

C324

Z0.1

NC

2

1

2

1

2

1

2

1

R321 1.0K

R320

KIN0

C323 K1000P

RPT

RD_P

FLASH

1

NEW_MSG KEYIN0

LA4 4S102

LA3 4S102

C321 J10P

1

R324 680

R323 680

RA301 220 8

L322

CLE1

STB00

STB01

STB02

STB03

STB04

STB05

L321

ALE1

CE1

R316 0

1

1

1

1

1

LA2 4S102

J100P

J100P

J100P

J100P

J100P

J100P

R322 680

C320 J10P

1

1

1

1

1

1

1

1

1

1

STB0

STB1

STB2

STB3

STB4

STB5

RST

1

1

C319 Z0.1

C318 Z0.1

R315 1.0M X301 4.096MHz

J100P

1

C335

1

C341

C340

C339

C338

C337

C336

STB04

STB05

STB03

STB02

STB01

STB00

KIN5

KIN4

KIN3

KIN2

KIN1

KIN0

LED303

LED302

LED301

RESET

(1)

URX1 URX

1

1

1

(2)

8

8

8

1

1

1

(3) (4)

1

(5)(6)(7)(8)(9) (10)(11)(12)(13)(14)(15)(16)(17)(18)

L308

J100P

C333

1

J100P

C332

1

J100P

C330

1

(19)(20)

COM1 RLY

31 L306

(21)(22)

C326

L325

L326

Z0.1

L304 2KA213

1

1

1

(23) (24)(25)

1

R339 4.7K

R341 4.7K

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

LINE_DTE1

LINE_DTE2

SIG_OUT

1

1

1

ALE

I/O 3

I/O 2

I/O 1

I/O 0

CLE

GND

GND

R343

120K

WP

WE

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

1

NC

(26)

1

R418

1

6

5

6

2.2K R509
1

R504 22K

C421 Z0.1

C420 16V47

IC501
2 T-E

C425 K0.1

1

C422 Z0.1

C423

1

1

J68P

K0.1

TXRF=-27.1dBm C512

RX_DATA

1

1

R415 NC

C417 K0.1

(27) (28)

IC401

1

2

3

4

5

6

7

8

9

10

11 12 13

14

RXAF=-11.6dBm

1

1

1

1

+

1

1

VOL401 20K

17

R411 33K
1

LINE_OUT

C416 K0.1

1 1

1

(29)

RXAF=-14.4dBm

2

R433 NC

R412 6.8K

C415 K0.11

1kHz TALK LOAF=-0.6dBm SP-P LOAF=-24.8dBm TALK LOAF=-23.3dBm
1

TALK LOAF=-15.8dBm SP-P LOAF=-40.3dBm
1 1

TALK LOAF=-0.6dBm SP-P LOAF=-24.8dBm TALK LIAF=-23.3dBm
C108 NC R114
1

TALK LOAF=-0.9dBm SP-P LOAF=-25.3dBm TALK LIAF=-23.3dBm
C103 500V680P
1

+

0 R112
1

TALK LOAF=-1.0dBm SP-P LOAF=-25.5dBm
L101 33uH
1

1

3

Q107 NC

Q103
1

PO101 TIP 0
1

CN1 TIP RING DC + DC -

C110 K0.1

R121

C102 D102 D101 R101

1.5K

R129 0

R102 NC

NC

NC
1 1

SA101

R106

R125
1 1 1

R115
1

R105 NC

100K

1KHz -25dBm DC48V Loop simulator 60mA

2

1

2

1

K0.047 R128

C107 K4700P

C115

R127

1.2K

D104 M18V

NC

R122

R120 39K

R107

680

R116 1/4W 10

J100P C114 16V10
+

NC NC

AC-IN 4

NC

1

R113 NC
1

Q105 NC

1

1

C112

4.7K

NC

1

NC
1 1 1

NC

3

D103 +
AC-IN 3

Q106 NC

1

1

1

RING
1

1

1

0 C109 K0.01

25V10uF R123

Q110
1 1

10K

22K C111
+

R109

D108

R108 100K

R103

4.7K

Q108
1

1

1

1

1

1

1

3 2

C104 500V680P
1

NC

R124

Q104
1

1

C101 NC L102
1 1

NC

R119

R117

100K

R130 180 R126 1/2W 68

C113 K0.01
1

C106

1

1

Q102 NC D107
1

1

C105 NC
1

33uH

SA102

R118

1

D109 M3.3V C116 5.6K C134 16V10uF R131 2.2K C117 K0.022
+
1 1

4.7K

RELAY 120K DC_IN

R111 NC
1

Q101 NC

NC

R110
1

R132 10K

BELL_IN
3 1 1

R136

LINE_SZ
1 1

47K

NC

1

1

R137 0

2

2

D105 C120 K0.47 R135 4.7K
3

R133
1

C118
1

2

C121 K0.033

1 1

100K

K0.15

NC

C129

VOL101 NC

1

1

Q111

3

1

R134
1

C119
1

(29)

LINE_DTE1

RX DATA 300Hz/400Hz 5V

R153 NC R150
1

R148
1

100K R146 NC
1

K0.15

C126 K0.22

3 2

+ -

1

IC101:A 8

3

NC

NC 6 TIP_IN TIP_OUT RING_IN

R144 3.3K

1

1

(27) (28)

NC

1

1

Q109 NC

R151 NC

4

2

IC101:B

+

1

1

5

R147 NC

RING_OUT

1

C130

R152 NC

C128

(26)

C133

1

R142

390

LINE_DTE2

R161 NC
1

NC

1

NC

R149 NC

+

R156 NC R158
1

1

R143 1.0M

3

Q112
2

IC102:A 8
1

D106 C125 Z1.0
2

3

+ -

3

NC

1

1

1

R141 22K

R140 6.8K
1 1

2

R159 NC 4 2 IC102:B
1

6

R154 NC
1

R145 2.2K C127 K0.1

NC

Q113 NC

+

1

5

R155 NC

1

1

3

1

1

C132

R160 NC

C131

C135 NC

R164 NC

R162

1

1

1

NC

1 3 1 1 2

1

NC

R157 NC

1

+

C124 NC

SET SPEC(10CH / 40mA) ITEM TX-VCO RX-VCO TX-POWER LINE-MOD DATA-MOD LINE-OUT NOISE-SQ RADIATIONPOWER RX-SENSITIVITY CONSUMPUTION DC IMP RETURN LOSS SP SP OUT SP LINE OUT MIC IN - SP OUT MIC IN - LINE OUT DTMF DUAL DC 8V 8V REG201
2 OUT GND 3 IN 1 1

1

CONDITION

DATA

R165 NC

C136 NC

Q114 NC R163

1

1

NC

-20dBm / 1KHz 3KHzdev / 1KHz , 60dB 3m 3m TALK 20mA 600 -40dBm / 1KHz -50dBm / 1KHz -40dBm / 1KHz -20dBm / 1KHz

1

R139 100K

1 1 1

1

(23) (24)(25)

C137 K0.015 C123 K680P C122 K680P

L301 2KA213
1

DC5V(DIGITAL1) 6.3V1000 C301
+

D205
1

1kHz

R138 100K

(21)(22)

DC5V(DIGITAL2) C302 Z0.1
1

5V S5688G

Q201 1/4W 270

DC12V
1

D204

D203

R201

C205 16V10

1

+

C204

R209 100K

6.3V220

16V100

R206

H6.2V

C214

C207

D202

(19)(20)

R202

330K

C206

NC

+

1

+

SP3 SP1 SP4

1

1.8K

SP-P AF=-9.0dBm SPEAKER

1

1

1

1

R208 NC REG_GND

D302 H5.1V

D301 H5.1V

1

C303 NC

SP2

PWR_DOWN

1

1

56K

C203

TALK LOAF=-0.2dBm SP-P LOAF=-24.9dBm

1

2

1

+

L202 10uH 1 PWR_GND

(5)(6)(7)(8)(9) (10)(11)(12)(13)(14)(15)(16)(17)(18)

1

1

R203

1

DC5V(ANALOG) 6.3V100 C305
+

D303

C307 J220P R301 150K

C306 Z0.1

L311

100K

1

L203 10uH
1

CH3 CHG1
1

1

1

1

1

1

1

C213 K0.01

TALK LIAF=-11.9dBm
R303 68K

L313 L314
1

Q202
1 3 2

R205 10K
1

L204 10uH
1

CH4 CHG2 D207 M18V D206 M18V
1

R304 1.0K

D304

C304 NC

1

NC

NC

NC

C212 Z1.0

R204 1/4W 39

C210

D209

6.3V100

1

1

SP-P AF=-36.7dBm
1 1

C310

R312 470K L316
1 1 1 1 1

R305 3.3K

C308K680P
+

D208

C309 J330P

1

1

1

MIC1 MIC D305 M6.2V P_GND JP301 NC
1

R308 1

C311 J330P C315 Z1.0
1

560

C314 K0.01

R309 3.9K R313 10K

C312 K0.22

C313 K0.1

R307 0
1

1

1

1

3

Z1.0

C316

Q301
2 1

MIC2 R306 1.0K

1kHz -40dBm

1

LEVEL_CONT

R3451

R3141

+

-

47K

NC

(3) (4)

1

D307 NC
1

R344
1 CD

0
VDD

3

2

D309
1

D308
1 4 OUT GND 1

K0.22

R346 1

R338 1

100K C343

C342

(2)

0 C317 6.3V100

1

1

NC

IC302

PWR_DOWN

(1)

BELL_IN

Z0.1

+

NC

D306

R336 1

KX-TC1230ALW: SCHEMATIC DIAGRAM (BASE UNIT)

1

1

1

C209

1kHz

R310 560K

1

1

1

1

1

1

C211 Z1.0

NC

1

C208 NC

L312

DC_IN

1

3

R207

D201 M30V

Z1.0

NC

Q203

C202 Z1.0

1

TXAF=-12.7dBm

2 3

C201 K1000P

Q204

D210 H6.2V

L201 10uH

1

1