2

SPECIFICATIONS

GENERAL

Frequency Range 245.0000~245.9875

Working Temperate －10℃~＋55℃

Power Supply Requirement DC 7.2V

Current Consumption ≤1.6A(transmit 4W)

Sensitivity Adjust 2~20mV

Antenna impedance 50Ω

TRANSMITTER

Frequency Stability ±5ppm

Output Power 3W(High),1W(Low)

Max Frequency Deviation ≤±2. 5KHz Intermodulation Response Rejection 70dB

Audio Distortion ≤10%

Adjacent Channel Power ≤-65dB

Occupied Bandwidth ≤16KHz

RECEIVER

RF Sensitivity : ≤0.2μV

Audio Frequency Response 300-3000Hz Audio Output ≥0.5W

Audio Distortion ≤10%

All stated specifications are subject to change without notice or obligation.

JB7

3

CIRCUIT DESCRIPTION1. Frequency configurationThe receiver utilizes double conversion. The first IF is 38.85MHz and the second IF is450kHz. The first local oscillator signal is supplied from the PLL circuit. The PLL circuit inthe transmitter generates the ecessary frequencies. Fig. 1 shows the frequencies.

2. ReceiverThe freauency configuration of the receiver is shown in Fig.2.1) Front - end RF amplifierAn incoming signal from the antenna is applied to an RF amplifier (T226) after passingthrough a transmit/receive switch circuit (D154 ,D211,D212) and a 3-pole LCfilter(L214,C215).After the signal is amplified (T226), the signal is filtered by a band passfilter (a 3-pole LC filter) (L230,C230,L235,L235) to eliminate unwanted signals beforeit is passed to the first mixer. The voltage of these diodes are controlled by to trackthe MPU(U811) center frequency of the band pass filter. (See Fig. 2)

JB7

4

2) First MixerThe signal from the RF amplifier is heterodyned with the first local oscillator signal fromthe PLL frequency synthesizer circuit at the first mixer (T248) to create a 38.85MHz firstintermediate frequency (1st IF) signal. The first IF signal is then fed through crystal filters(FL254,FL255) to further remove spurious signals.3) IF amplifierThe first IF signal is amplified by T255, and then enters U261 (FM processing IC). Thesignal is heterodyned again with a second local oscillator signal within U261 to create a450kHz second IF signal. The second IF signal is then fed through a 450kHz ceramic filter(FL263) to further eliminate unwanted signals before it is amplified and FM detected inFL240.4) AF amplifierThe recovered AF signal obtained from U261 goes to the microprocessor(U811). Theprocessed AF signal passes through an AF volume control and is amplified to a sufficientlevel to drive a loud speaker by an AF power amplifier (U481).5) SquelchPart of the AF signal from the IC enters the FM IC again,and the noise component isamplified and rectified by a filter and an amplifier to produce a DC voltage correspondingto the noise level. The DC signal from the FM IC goes to the analog port of themicroprocessor (U811). U811 determines whether to output sounds from the speaker bychecking whether the input voltage is higher or lower than the preset value.To outputsounds from the speaker, U811 sends a high signal to the AF Power Iines and turns U481on through T471,T472.6) Receive signalingQT/DQTThe output signal from FM IC (U261) enters the microprocessor(U811) .U811 determineswhether the QT or DQT matches the preset value, and controls the AF Power and thespeaker output sounds according to the squelch results3. PLL frequency synthesizerThe PLL circuit generates the first local oscillator signal for reception and the RF signal fortransmission.1) PLLThe frequency step of the PLL circuit is 5 and 6.25kHz and so on. A 19.2MHz referenceoscillator signal is divided at U311 by a fixed counter to produce the 5 or 6.25kHzreference frequency. The voltage controlled oscillator (VCO) output signal is bufferamplified by T340, then divided in U311 by a programmable counter . The divided signal iscompared in phase with the 5 or 6.25kHz reference signal in the phase comparator inU311. The output signal from the phase comparator is filtrered through a low-pass filterand passed to the VCO to control the oscillator frequency.2) VCOThe operating frequency is generated by T340 in transmit mode and T341 in receivemode. The oscillator frequency is controlled by applying the VCO control voltage, obtainedfrom the phase comparator, to the varactor diodes (D330 and D331 in transmit mode andD340 and D341 in receive mode). The TC/RC pin is set low in receive mode causingT345off, and turn T337 on . The TC/RC pin is set hight in transmit mode causing T337 off,andT192,T191 on.

JB7

5

JB7 3) UNLOCK DETECTORIf a pulse signal appears at the LD pin of U311, an unlock condition occurs, and the DCvoltage obtained from D309, and C311 causes the voltage applied to the PLL-LD pin ofthe microprocessor to go low. When the microprocessor detects this condition, thetransmitter is disabled, ignoring the push-totalk switch input signal. ( See Fig.3)

4. Transmitter1)Microphone AmplifierThe signal from the microphone passes through U511.The signal passes through the Audioprocessor(U511) for the maximum deviation adjustment,and goes to the VCO modulationinput.2)Drive and Final AmplifierThe signal from the T/R switch(D154 and D155) is amplified by the pre-drive(T112.T120)and drive amplifier(T133) to 50mW.The output of the drive amplifier is amplified by theRF power amplifier(T145) to3.0W(1W when the power is low).the RF power amplifierconsists of two MOS FET stages.The output of the RF power amplifier consists of twoMOS FET stages.The output of the RF power amplifier is then passed through the harmonicfilter (LPF) and antenna switch (D154,D155)and applied to the antenna terminal.5. Power supplyThere are four 5V power supplies for the microprocessor: 5M,5C,5R,and 5T,5M formicroprocessor is always output while the power is on.5M for microprocessor is alwaysoutput while the power is on.5M is always output,but turns off when the power is turned offto prevent malfunction of the microprocessor.5C is a common 5V and is output when SAVE is not set to OFF.5R is 5V for reception and output during reception.5T is 5V for transmission and output during transmission.6.Control CircuitThe control circuit consists of a microprocessor (U811) and its peripheral circuits.itcontrols the TX-RX unit.U811 mainly performs the following:(1) Switching between transmission and reception by the PTT signal input.(2) Reading system,group,frequency,and program data from the memory circuit.(3) Sending frequency program data to the PLL.(4) Controlling squelch on/off by the DC voltage from the squelch circuit.(5) Controlling the audio mute circuit by the decode data input.(6) Transmitting tone and encode data.

6

1)Memory CircuitMemory circuit consists of the CPU (U811) and an EEPROM(U831).An EEPROM has acapacity of 32K bits that contains the transceiver control program for the CPU and datasuch as Transceiver channels and operation features2)Low Battery WarningThe battery voltage is checked using by the microprocessor.(1) The red LED blinks when the battery voltage falls below 6.2V.(2) A Warning tone generates when the red LED blinking. ( See Fig.4)

JB7

7

ADJUSTMENT

Required Test Equipment

The following items are required to adjust radio parameters:

1. Regulated power supply

Supply voltage: 5-14V DC

Current: 3A or more

2. Digital multimeter

Voltage range: FS = Approx. 20V

Current: 10A or more

Input resistance: High impedance

3. Oscilloscope

Measurable frequency: Audio frequency

4. Audio dummy load

Impedance: 8 ohm

Dissipation: 1W or more

Jack: 3.5mm

5. SSG

Output frequency: 200MHz or more

Output level: -20dBu/0.1uV -120dBu/1V

Modulation: FM

6. Spectrum Analyzer

Measuring range: Up to 2GHz or more

7. Power meter

Measurable frequency: Up to 200MHz

Impedance: 50, unbalanced

Measuring range: 0.1W -10W

8. Audio volmeter

Measurable frequency: Up to 100KHz

Sensitivity: 1mV to 10V

9. Audio generator

Output frequency: 67Hz to 10KHz

JB7

8

Output impedance: 600, unbalanced

10.Distortion meter/SINAD meter

Measurable frequency: 1kHz

Input level: Up to 40dB

Distortion: 1% - 100%

11.Frequency counter

Measurable frequency: Up to 200MHz

Measurable stability: Approx. +/-0.1ppm

12.Linear detector

Measurable frequency: Up to 200MHz

Characteristics: Flat

CN: 60dB or more

Note

Standard modulation: 1kHz +/-2.5kHz/DEV

Reference sensitivity: 12dB SINAD

Specified audio output leve: 200mW at 8

JB7

Name/Footprint Comment QuantityDesignators

1206 Chip Resistors

Res(1206) 0R R901 1

Res(0603) 4K7 R337 R340 2

Res(0402) 0R R483 R493 2

R131 R141 R177 R180 R222 R224

0402 Chip Capacitors

0603 Chip Resistors

R131 R141 R177 R180 R222 R224

R232 R250 R251 R273 R330 R331

R492 R517 R824 R842 R845

R227 R248 R338 R344 R370 R374

R400 R401 R403 R814

R112 R172 R174 R176 R179 R242

R301 R304 R342 R414 R418 R453

17

10

100KRes(0402)

Res(0402) 100R

R301 R304 R342 R414 R418 R453

R471 R476 R481 R514 R516 R518

R520 R522 R711 R830 R848 R913

R925

Res(0402) 10R R125 R277 R411 R484 4

Res(0402) 120K R371 1

Res(0402) 150K R221 R249 R252 R284 R831 R833 6

2510KRes(0402)

Res(0402) 150K R221 R249 R252 R284 R831 R833 6

Res(0402) 150R R332 R341 R384 R482 4

Res(0402) 15K R410 R460 R822 3

Res(0402) 180K R266 1

R105 R205 R272 R302 R309 R346

R360 R375 R485 R826 R827

Res(0402) 1K2 R267 R404 2

1K 11Res(0402)

Res(0402) 1K2 R267 R404 2

Res(0402) 1K5 R275 1

Res(0402) 1M R494 1

Res(0402) 220K R223 R843 2

Res(0402) 22K R305 R325 R419 3

Res(0402) 22R R113 1

Res(0402) 270R R154 1Res(0402) 270R R154 1

R300 R323 R324 R402 R472 R911

R912

Res(0402) 2K7 R257 1

Res(0402) 330K R361 R417 2

Res(0402) 33K R385 R841 R846 3

Res(0402) 39K R413 1

Res(0402) 2K2 7

Res(0402) 39K R413 1

Res(0402) 3K3 R111 R175 R269 R373 R378 5

Res(0402) 470R R247 R255 2

R106 R133 R142 R303 R452 R515

R828 R829 R832 R924

Res(0402) 47R R132 R143 R225 R253 R377 5

Res(0402) 1047K

R282 R283 R285 R308 R351 R491

R519 R815 R855 R857 R858

Res(0402) 560R R320 R321 R853 R854 4

4K7Res(0402) 11

Res(0402) 560R R320 R321 R853 R854 4

Res(0402) 56K R268 R412 2

Res(0402) 5K1 R847 1

Res(0402) 5K6 R376 1

Res(0402) 680K R256 1

Res(0402) 680R R114 R416 2

Res(0402) 6K8 R322 1Res(0402) 6K8 R322 1

Res(0402) 820R R427 1

Res(0402) 82K R163 R178 R823 3

Res-Pac(1206) 1K PR301 PR727 2

Res-Pac(1206) 47K PR72 1

1208 Chip Resistor Packs

1208 Chip Variable Resistors

Var-Res(1208) 100K RV180 RV453 2

Var-Res(1208) 50K RV38 1

Cap(0402) 0P5 C171 C173 C332 C337 C345 5

Cap(0402) 0R C218 1

1208 Chip Variable Resistors

0402 Chip Capacitors

Cap(0402) 0R C218 1

C278 C301 C306 C308 C309 C310

C366 C381 C401 C482 C492 C722

C723 C724 C725

C133 C137 C142 C172 C174 C175

C179 C251 C305 C326 C347 C353

C354 C371 C375 C402 C831 C902

15

Cap(0402) 102P 18

Cap(0402) 100P

C354 C371 C375 C402 C831 C902

C106 C134 C145 C178 C201 C206

C207 C248 C252 C277 C303 C304

C338 C339 C351 C451 C472 C473

C475 C711 C822 C830 C841 C845

C903 C908 C910

C101 C107 C177 C253 C257 C263

27103PCap(0402)

C101 C107 C177 C253 C257 C263

C264 C265 C272 C273 C274 C276

C311 C327 C331 C349 C384 C413

C416 C474 C476 C491 C493 C494

C821 C824 C840 C843 C857 C858

Cap(0402) 105P C847 1

C163 C211 C244 C246 C268 C336Cap(0402) 10P 7

Cap(0402) 30104P

C163 C211 C244 C246 C268 C336

C361

Cap(0402) 15P C155 C157 C343 C373 4

Cap(0402) 1P C158 C229 C234 3

Cap(0402) 20P C111 1

C266 C267 C284 C417 C484 C485

C849

Cap(0402) 10P 7

Cap(0402) 220P 7

Cap(0402) 22P C159 C825 C826 3

Cap(0402) 27P C275 1

Cap(0402) 2P C214 C335 C364 3Cap(0402) 2P C214 C335 C364 3

Cap(0402) 30P C363 C365 2

Cap(0402) 332P C846 1

Cap(0402) 333P C844 1

Cap(0402) 33P C330 C340 2

Cap(0402) 392P C842 1

Cap(0402) 39P C125 C161 L136 3Cap(0402) 39P C125 C161 L136 3

Cap(0402) 3P C160 C235 2

C105 C114 C126 C135 C144 C153

C154 C156 C205 C220 C223 C224

C225 C227 C240 C242 C250 C260

C269 C302 C346 C352 C362 C909

Cap(0402) 472P C283 C415 C481 3

470P 24Cap(0402)

Cap(0402) 472P C283 C415 C481 3

Cap(0402) 473P C280 C282 C414 C483 4

Cap(0402) 47P C360 1

Cap(0402) 4P C215 1

Cap(0402) 56P C150 1

Cap(0402) 5P C342 C344 C342 C344 2

Cap(0402) 680P C848 1Cap(0402) 680P C848 1

Cap(0402) 6P C162 C228 C230 C245 C372 5

Cap(0402) 7P C118 C329 C333 C378 4

Cap(0402) 8P C255 1

Cap(0603) 223P C462 1

Cap(0603) 2T C149 1

Cap(0805) 105P C471 C901 2Cap(0805) 105P C471 C901 2

C285 E201 E277 E325 E326 E352

E471 E482 E711 E908 E910

Cap(0805) 1uF E144 1

Cap(0805) 2.2uF E452 1

Cap(0805) 2P C334 1

Cap(0805) 3P C341 1

Cap(0805) 10uF 11

Cap(0805) 3P C341 1

Cap(0805) 4.7uF E179 E301 E327 E401 E460 E514 6

Pol-Cap(6032) 100uF E483 1

Pol-Cap(3216) 0.1uF E321 E324 2

Pol-Cap(3216) 1uF E322 1

Polarizedcapacitors

Ind(1009) 1uH L254 1

Ind(0805) 100nH* L332 1

Ind(0805) 150nH L340 1

Ind(0805) 220nH L154 1

Ind(0603) 100nH L324 L371 2

Inductance

Ind(0603) 2.2uH L336 C136 2

Ind(0603) 33nH L114 1

Ind(0603) 39P L136 1Ind(0603) 39P L136 1

Ind(0603) 47nH L245 L372 2

Ind(0603) 560nH L362 L364 2

Ind(0603) 82nH L375 1

Ind(0603) 6.8uH L330 1

Ind(0603) 47nH L214 L230 L235 3

Ind(0603) 47nH L225 1Ind(0603) 47nH L225 1

Ind(0805) 101T L901 1

Ind(0603) 101T L325 L353 L481 L840 4

Ind(0603) 301T L821 1

Coil-Ind 4T L158 L160 L162 3

Coil-Ind 6T L135 L211 L212 3

Coil-Ind 8T L145 1Coil-Ind 8T L145 1

Diode(USM) 1SS372 D493 1

Diode(USM) 3J D171 D173 2

Diode(USC) UD D154 1

Diode(SMA) 1SR154- D902 1

Diode(ESM) DAN222 D427 1

Diode

Diode(ESM) DAN222 D427 1

Diode(ESC) HSC277 D111 D211 D212 D241 4

Diode(ESC) MA2S11 D351 1

Diode(ESC) PMSD4148 D309 1

Diode(ESC) C376 D330 D331 D340 D341 4

SwitchingDiode

Diode(ESC) C376 4

Diode(ESC) H376 D333 1

LED(0603) GREEN D854 1

LED(0603) LED D813 D814 D815 D816 D817 D818 6

LED(0603) RED D853 1

Light Emitting Diode

Transistors

Tra(TSQ) 3SK318 T226 T248 2

Tra(USV) UMC4 T345 1

Tra(USM) 2SC4226 T112 T341 T361 3

Tra(USM) 2SC4226 T371 T377 2

Tra(USM) MRF497 T425 1

Tra(TSM) 2SB624 T106 T302 T471 T822 4

Transistors

Tra(TSM) 2SB624 T106 T302 T471 T822 4

Tra(ESM) 2SC4617 T845 1

Tra(ESM) 2SC4617(S T351 1

Tra(ESM) 2SC4649 T255 1

Tra(ESM) DTA114EE T178 T206 T272 T855 4

Tra(ESM) DTC114EE T105 T472 T814 T853 T854 5

FET(TSM) K52 T340 1

FET(ESM) 2SJ243 T337 1

FET(5N1A) RQA009 T145 1

Integrated Circuits

IC(SSOP16) TA31136F U261 1

IC(SSOP16) TB31202 U311 1

IC(SSOP10) TA7368 U481 1

IC(SSOP8) NJM2904V U511 1

IC(SOT89) 5A U909 1

IC(SOP8) 24C32 U831 1

Integrated Circuits

IC(SOP8) 24C32 U831 1

IC(QFP44) TMP87P805 U811 1

IC(LQFP48) HT1621B U711 1

Filters 38.85MHz FL254 FL255 2

Filters 450G FL26 1

CrystalFilters

Oscillator 32.768KHz CR82 1

Oscillator C24 CR27 1

TCXO 19.2MHZ CR38 1

CeramicOscillator

CrystalOscillator

TCXO

TCXO 19.2MHZ CR38 1

LCD GD-4481 LCD7 1

ANT ANT ANT1 1

BATTERY BATTERY BATT 1

Knob RD91 VR41 1

Orthers

Knob RD91 VR41 1

Knob RD81-T02 SW82 1

SP-JACK 2.5mm JK48 1

SP SP SP40 1

MIC-JACK 3.5mm JK40 1

MIC MIC MIC4 1

APC

NJM2904V

AMPAMPAMP

2SC3357 2SK3078 RQA009

BATT BATT

AMP

Mixer

BPFBPFBPF

LPF LPF

3SK318

3SK318

5R

BPF

38.85MHz

Double Frequency

BPF

AMP AMP

AMP

AMP

AGC

FM IF Detector

TX-VCO

AMP

2SC3357

AMP

2SC3357

LPF

RX-VCO

TX/RX Power

LPF

2-Tone LPF

F M V

1 2 3

4 5 6

7 8 9 *

0

#

MPUTA31136F

PLL FrequencyTB31202FN

LC

D

KeyB

oard

DCS Balence

FM Radio

CL6010

Detector

32.768KHz 32.768KHz

DCS/CTCSS

DCS/CTCSSFiler

BATT5M

5T

5R

5R

5C

5C

5M

5C

5M

Conter

5C5C 5T

5M

5R

5T

IF AMP2SC4649

CK/DATD/STB

TXCO19.2MHz

5R

450K

38.4MHz

A B

1

2

3

4

5

C D E F G

A B C D E F G

R371120K

OSC

in1

Dec

6FI

L ou

t7

IF o

ut11

IF in

5

MIX

in16

AF o

ut9

RSS

I12

QU

AD10

MIX

out

3

OSC

out

2

FIL

in8

N-d

et13

N-re

c14

Vcc

4

GN

D15

U261TA31136F

C260470P

C267

220P

C265104P

R266180K

R2671K2

R26856K C266

220P

C277103P C276

104P

CR275C24

C27527P

R2751K5

T272DTA114EE

T2SC

E91010uF

C910103P

C909

470P

E90810uF

C908103P

5R

C304103P

5SC

R2721K

5RC/5TC

E27710uF

C26

410

4PC

263

104P

5Ro

BATT5M+ in

Gndout

U9095A

5Ro

C261NC

C262NC

C278100P R273

100K

C273104P

MOD

R3091K

R3084K7

C308100P

C327104P

C384104P

C311104P

C310100P

C305102P

C309100P

E32610uF

C326102P

XOUT 3

VC15C4

GND 2

CR38019.2MHZ

D309PMSD4148

R384150R

R38533K

R30522K

R30410K

E3274.7uF

E3014.7uF

R3002K2

R30110K

PR3011K

L324100nH

5C

RV38450K

C306

100P

Fin1

1

CK

6D

ATA

7

Xin

11

LD5

Fin2

16

BO9

SW12

Xout

10

CP1

3

VCC

2

STB

8

GN

D13

CP2

14G

ND

4

VCC

15

U31

1TB

3120

2

L325

101T

R323

2K2

R321

560RR3242K2

R320

560RR3226K8

E3240.1uF

E3221uF

E3210.1uF

R32522K

D330C376

D331C376

C33033P

C3320P5

R330100K

R331100K

R46015K

D333H376

E4604.7uF

C3337P

C33610P

C3352P

R332150R

C3370P5

C328NC

C3297P

D340C376

D341C376

C34033P

C3413P

C3425P

R3404K7 C343

15P

C3445P

R341150R

R34210K

C3450P5

5M

R71110K

C711103P

E71110uF

A01A12

GND4 DA 5CK 6A23 WP 7Vcc 8

U83124C32

C828NC

C829NC

C830103P

PR72847K

PR7271K

C725100P

C722100P

C723100P

C724100P

R8261K

R8271K

321

SW826ARD81-T02

R83010K

R82847K

R82947K

INT CAE EXITB CA

5M

5M

C26810P

C269470P R269

3K3

R2824K7

R2834K7

C282473P

C283472P

VR411ARD91

R41110R

R518

10K

R517

100KR5194K7

R521NC

R52010K

R523NC

R522

10K

C521223P

C523223P

R27710R

R279NC

R461

NC

C461

NC

5SC5RC/5TC

RX-W/N

AD

123

AD

224

AD

325

OS

CI

26O

SC

O27

Vss

28P

D1

29P

D2

30P

D3

31R

eset

32V

dd33

PA0 34PA1 35PA2 36PA3 37PA4 38PA5 39PA6 40PA7 41PB0 42PB1 43PB2 44PC

01

PC

12

PC

23

PC

34

PC

45

PC

56

PC

67

PC

78

PB3

9PB

410

PB5

11

AVdd12RXO13RXI14TXI15TXO16Tone17LC18AVss19D/A20

ARX22 PD021

U811TMP87P805BU

C821104P

L821301T

C82622P

C82522P

T8222SB624

C822103PT845

2SC4617

R846

33K

R84810K

R845

100K

R8475K1

C846

332P

C845103P

C849220P

C847

105P

C848680P

R843220K

C843104P

C842392P

C844333P

R842100K

R84133K

C841103P

C491104P

C284220P

C492100P

R492100K

R491

4K7

R284150K

L840101T

C840104P

RX

5M

R82215K

R82382K

R824100K

C824104P

E514

4.7uF

R516

10KR51547K

C515223P

R514

10K

D4931SS372

R493

0RC493104P

R4941M

C494104P

D813LED

D814LED

T814DTC114EE

R8154K7

R814100R

C831102P

R832

47K

R833

150KR831150K

BATT-Del

R9112K2

R9122K2

C301100P

R3601K

R361330KC360

47P

C36110P

C36330P

C362470P

C3642P

C36530P

C366100P

L364560nH

C382NC

C380NC

D815LED

D816LED

D817LED

D818LED

AFMICRadio CLKRadio Data

AF POWER

BATTAPC-H/LTUNESQL DEL

AF POWER

BATTAPC-H/LTUNESQL DEL

AFMIC

1

2

3

4

5

6

JP901JP6

C281NC

T279NC

C381100P

R4041K2

R92510K

R92447K

E32510uF

T3412SC4226

T3612SC4226

PTT

MONI

LAMP

Radio OutRadio OutRX

PTT PTT

C349104P

C331104P

1

R91310K

MIC MUTE

5M+5M

5M+ 5M+

5M+

BA

TTB

ATT

BATT

5M+

5M

LAM

P LAM

P

5M

RO

M-D

ATA

ROM-DATABATT-Del2-Tone

MIC

MU

TE

MIC MUTE

AFMIC

RX

PTTMIC MUTE MIC MUTE

Rad

io C

LK

Rad

io D

ata

PTT

RX

RX

TUN

E

5M

5M

SQ

L D

EL

RO

M-D

ATA

BAT

T-D

elA

PC-H

/LA

F P

OW

ER

DQT

DQ

T

5M

5MP

TT

PTT

RX

RX

MIC

MIC

MU

TE

RX

MIC

MIC

MIC

MU

TE

T3512SC4617(S) L353

101TC353102P

E35210uF

C352470P

D351MA2S11

R3514K7

C351103P

R338100R

R344100R

T345UMC4

R346

1K

C339103P

C354102P

C346470P

C347102P

L340150nH

5R

5C5C5C

5C

C280473P

C28510uF

PTT

RX

MIC

MIC

MU

TE

VO

XV

OX

2-To

ne

PB0PB1

MIC MUTE

PB0PB1

PB

0P

B1

PB

0P

B1

HT1621-CS

HT1621-CS

HT1621-C

S

LAMP

PB0PB1

Radio CLKRadio Data

Rad

io O

utBATT

R281NC

5M+5M

D853RED

D854GREEN

T853DTC114EE

T854DTC114EE

R854560R

R8554K7

R853560R

C857104P

T855DTA114EE

R857

4K7

C858104P

R858

4K7

5M+

5M

5C

5M

RO

M-D

ATA

GREEN

GREENGREEN

RE

D/T

XD

RE

D/TX

D

RED/TXD

RE

D/T

XD

RED/TXD

GR

EE

N

PI1PI2PI3PI4PO1PO2PO3PO4

PI2

PI1

PI2

PI1

PI2

PI1

PI2

PI1

PO

4

PO4

(MONI)

(MO

NI)

(Cal

l)

(Call)

(MO

NI)

(Cal

l)(M

ON

I)(C

all)

AFin

AFi

n

VO

X2-

Tone

AFin

AFi

n

5M 5M+

HT1621-CSPI1PI2PI3PI4PO1PO2PO3PO4

VOX-Del

Beep

Radio

5M

5R

5R

5R

CS CS

RD RD

WR WR

DATA DA

VSS VSS

OSCO OSO

OSCI OSI

VLCD VLCD

VDD

VDD

IRQ

IRQ

BZBZ

BZ/B

Z

S32

S32

S01S01 S02S02 S03S03 S04S04 S05S05 S06S06 S07S07 S08S08 S09S09 S10S10 S11S11 S12S12 S13S13 S14S14 S15S15 S16S16 S17

S17

S18

S18

S19

S19

S20

S20

S21

S21

S22

S22

S23

S23

S24

S24

S25

S25

S26

S26

S27

S27

S28

S28

S29

S29

S30

S30

S31

S31

C01

C01

C02

C02

C03

C03

C04

C04

U711HT1621B

PO3PO4

HT1621-C

SP

O3

PO

4

BATT

BATT

5M

5M 5M

5M+

5M

C274104P

C462223P

FL263450G

L362560nH

RED/TXD

RED/TXD

T3372SJ243

PTT

/RX

D

T461NC

R2854K7

#987

4 5 6 0

*321

L3306.8uH L332

100nH*

C3342P

T340K52

L335120nH

L3362.2uH

C338103P

R3374K7

S01S02S03S04S05S06S07S08S09S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S25S26S27S28S29S30S31S32C01C02C03C04

FB617

LCD711

GD-4481

CR825

32.768KHZ

G H I J K L M

1

2

3

4

5

G H I J K L M

ANT111ANT

L158

4T

L160

4T

L162

4T

C156

470PC161

10PC16310P

C162

6P

C15922P

C15715P

C160

3P

C158

1PC153

470P

C15515P

D154UD

C142102P

C146NC

C137

102P

C1362.2nH

C1492T

C15056P

T1332SK3078

T145RQA009

C135470P

C133102P

C126

470P

C144470P

C373

15P

C145103P

C114470P

C111

20P

C125

39PC118

7P

T120NCT112

2SC4226D111

HSC277

C3787P

C372

6P

C377NC

R14247K R141

100K

R14347R

R13347K

R131100K

R13247R

R125

10R

R122NC

C122NC

C120NC

R120NC

R118NC

R114680R

R112

10K

R3783K3

R37747R

R3733K3

R371120K

R154270R

C154470P

R11322R

R1113K3

R370100R

L2116T

C21110P

D211HSC277

D212HSC277C212

NC

C2142PC218

0R

R221150K

T2263SK318

C223470P

C2291P

C225470P

C224470P

R224100K

R22547R

R223220K

R227100R

C2341P

C248103P

R248100R

R251100K

R247

470R

R250100K

T2483SK318

C24610P

C253104P

C252103P

C201103P

R255

470R

R256

680K

R25347R

R2572K7

T2552SC4649O

SC in

1M

IX in

16O

SC o

utG

ND

U261TA31136F

C2558P

FL25438.85MHz

FL25538.85MHz

C257104P

C260470P

T272DTA114EE

C179102P

E1794.7uF

T3772SC4226

L37247nH

T3712SC4226

C375102PC371

102PL371

100nH

L37582nH

R3751K

R3765K6

R374100R

C272104P

T1062SB624

R10647K

R105

1K

C106103P

C105470P

C206103P C107

104P

C205470P

R2051K

C207103P

C242470P

R242

10K

BATT

L2541uH

5R

D241HSC277

C24410P

L24547nH

C302470P

R3021K

C304103P

5M

5T

5C 5M 5M

5T

5R

5R

5C

R272K

5T

C101104P

C102NC

L11433nH

L122NC

L136

39P

L1356T

C147NC

L154220nH

5RC/5TCC

5T

E20110uF

5M

L1458T

E1441uF

C143NC

C303103P

5T

5T

5R

C178103P

5RC261NC

C262NC

C220

470P

R222100K

C250470P

R249150K

R252150K

C240

470P

T3022SB624

R30347K

5M

C134103P

R16382K

C1710P5

D1713J

R17210K

C172102P

C175102P

C152NCC173

0P5D1733J

R17410K

C174102P

R177100K

C177104P

R17610K

R1753K3

R17882K

T178DTA114EE

L212

6T

C2286P

C251102P

C227470P

R121NC

R119

NC

Strip line Strip line

C2456P

R254NC

5R

5R T105DTC114EE

L22547nH

R273100K

C216NC

D216NC

C2154P

L21447nH

R216NC

C231NC

D231NC

C2306P

L23047nH

R231NC

C236NC

D236NC

C2353P

L23547nH

R236NC

RV180100K

R17910K

R180100K

nc1Vcc2nc3Vin4Ripple5 NF 6Phase 7PreG 8PwG 9Pout 10

U481TA7368

2

54

1

JK4812.5mm

R482150R

R483

0RR48410R

R4722K2

R47110K

C484220PC483

473P

C482100P

C474104P

C475103P

E47110uF

E483

100uF

E48210uF

T4712SB624

T472DTC114EE

R481

10KC481472P

C473103P

C476104P

R47610K

L481101T

C451103P

R45247K

R45310K

BATT

C471105P

C472103P

RV453100K

AF POWER

AF

E452

2.2uF

SP401SP

MOD

SP

C337P5

1R

C3450P5

L291NC

C298NC

C292NC

C290NC

C299NC

C289NC

R289NC

C291NC

R295NC

C296NC

C295NC

BATT901BATTERY

C901105PC902

102PC903103P

R901

0RD902

1SR154-400

BATT+

MIC401MICC402

102P

MICMIC

RFI

N1

GN

D2

DPL

L_LP

F3

GN

D4

OS

C2

5O

SC

16

SDIO7

SCLK8

GPIO29

GPIO310

RST11

VDD12

VBA

T13

GN

D14

REF

P15

REF

N16

GN

D17

RO

UT

18

LOUT 19DPLL_VDD 20

VCO_LP 21VCO_LN 22

GND 23APLL_LPF 24

U290NC

C297NC

C293NC

C294NC

C413

104P

C414

473PR41015K

C415

472P

R416680R

C416104P

C417

220P

R417

330K

R41810K

R419

22K

R425

NCC425NC

T425MRF497

D425NC

E425NC

C288NC

T286NC

R288NC

R286NC

R287NC

C286NC

L288NCC279

NC

AF

AF

PO

WE

R

AFMICRadio CLKRadio Data

AF POWER

BA

TT

BATTAPC-H/LTUNE

AFMICRadio CLKRadio Data

AF POWER

BATTAPC-H/LTUNE

32

54

1 JK402

3.5mm

R400100R

5C

R401100R

R4022K2

E4014.7uF

C401100P

R403

100R

C287NC

R485

1K C485220P

41C4226

Radio OutRadio Out

PTT PTT PTTA

PC

-H/L

TUN

E

Rad

io O

utR

adio

Dat

aR

adio

CLK

BA

TTA

PC

-H/L

Rad

io D

ata

Rad

io C

LK

Radio Out

AFMICRadio CLKRadio Data

AF POWER

BATTAPC-H/LTUNE

Radio Out

PTT

5

D427DAN222

R427820R

MIC MUTE MIC MUTE

MIC

MU

TE

MIC

BAT

T

R344100R

C346470P

5C

RED/TXD

5M

5M5C5C 5C 5C 5C

5C

C274104P

76

5

U511BNJM2904V

2

31

84

U511ANJM2904V

5T

5T

RED/TXD RED/TXD

RED/TXD

R232

100KC210NC

C213NC

C221NC

L279

NC

T206DTA114EE

R41256K

R41339K

R41410K

L901

101T

C920

NC

D155NC

CR290NC