background image

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

V_BAT

TX_VCC

V_SAVE

V_SAVE

V_SAVE

RX_VCC

RX_VCC

QT_OUT

AFMOD

APC/TU

T/R

PLL_IN

CP

IF_IN

ATIS

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VCO&RF

POWER446(446.00625-446.09375MHz)

Model Name:

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Hytera Communications Co.Ltd.

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VCO&RF

POWER446(446.00625-446.09375MHz)

Model Name:

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Part Name:

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Monday, June 27, 2011

VCO&RF

POWER446(446.00625-446.09375MHz)

R103
2.2K

R103
2.2K

C443

NC

C443

NC

C507

6P

C507

6P

R500
1M

R500
1M

R106

150

R106

150

C414
1000P

C414
1000P

L100
601s

L100
601s

L406
8T

L406
8T

D500

BA277

D500

BA277

1

2

R101

3.3K

R101

3.3K

C544

12P

C544

12P

R502
100K

R502
100K

TC100

10p

TC100

10p

C652
15U/10V

C652
15U/10V

R518
270

R518
270

C422

7P

C422

7P

R438

8.2K

R438

8.2K

C136

5P

C136

5P

Q100

2SK508N

V

Q100

2SK508N

V

2

3

1

C423

10P

C423

10P

C454

1.5P

C454

1.5P

C518

5P

C518

5P

C511

0.1u

C511

0.1u

C532

4P

C532

4P

R654

100

R654

100

R404

1.5K

R404

1.5K

C142
470P

C142
470P

Q103

2SC5108

Q103

2SC5108

C439

1000P

C439

1000P

L503
18n

L503
18n

C543

10P

C543

10P

C425

3P

C425

3P

R439

150k

R439

150k

C124

5P

C124

5P

R100
560

R100
560

C501
2P

C501
2P

R108

1K

R108

1K

C520

12P

C520

12P

C121

15P

C121

15P

C261
5600P

C261
5600P

C133

2P

C133

2P

L402
601s

L402
601s

R521

1nH

R521

1nH

C453

5P

C453

5P

Q430
DTC114EE

Q430
DTC114EE

2

3

1

L511

33n

L511

33n

ANTENNA

ANTENNA

L105
3.3U

L105
3.3U

L403

1uH

L403

1uH

Q653
2SJ243

Q653
2SJ243

2

3

1

L101

3.3U

L101

3.3U

C125

1P

C125

1P

D507

HVC358B

D507

HVC358B

2

1

D505

HVC358B

D505

HVC358B

2

1

L508
5T

L508
5T

C408

1000P

C408

1000P

D401

HVU131

D401

HVU131

1

2

C134

470P

C134

470P

R436
10K

R436
10K

C406
470P

C406
470P

L454

4T

L454

4T

R503

270

R503

270

L450

4T

L450

4T

C460

NC

C460

NC

C400

0.5P

C400

0.5P

C516

4P

C516

4P

D502

BA277

D502

BA277

1

2

C126

470P

C126

470P

C513
180P

C513
180P

R422

0.39

R422

0.39

C654

470P

C654

470P

C402

470P

C402

470P

C407

15P

C407

15P

C537

0.1u

C537

0.1u

C548

100P

C548

100P

C141

6P

C141

6P

C403

470P

C403

470P

C276
NC

C276
NC

XF1
MFT38P

XF1
MFT38P

IN

1

GND

2

GND

3

Out

4

Cap

5

Cap

6

Q101

2SK508N

V

Q101

2SK508N

V

2

3

1

D430
EDZ6.8B

D430
EDZ6.8B

R507
100K

R507
100K

R273

NC

R273

NC

C549
0.1U

C549
0.1U

C545

100P

C545

100P

C539

470P

C539

470P

C111

6P

C111

6P

C528

8P

C528

8P

L110

220n

L110

220n

D102

HVC350B

D102

HVC350B

2

1

C503

6P

C503

6P

C421

12P

C421

12P

Q502

2SC5108

Q502

2SC5108

2

3

1

L451

4T

L451

4T

R433

150K

R433

150K

C427

3P

C427

3P

C104
0.33U

C104
0.33U

C106

1000P

C106

1000P

C446 1u

C446 1u

L115
33N

L115
33N

R530

10K

R530

10K

C139
470P

C139
470P

Q501
3SK318

Q501
3SK318

3
2

4

1

R262

100K

R262

100K

R517
270

R517
270

R104
10K

R104
10K

C442

470P

C442

470P

C140

470P

C140

470P

R265

NC

R265

NC

R515

680

R515

680

TP500

TP

TP500

TP

C529

0.01u

C529

0.01u

R417
33k

R417
33k

R105

56

R105

56

C131
470P

C131
470P

C262

4.7u/10V

C262

4.7u/10V

R111

3.3K

R111

3.3K

R112
10K

R112
10K

L109

3.3U

L109

3.3U

C509
1000P

C509
1000P

C438

NC

C438

NC

D650

BAS16

D650

BAS16

1

2

R512

33k

R512

33k

C120

6P

C120

6P

D503

HVC358B

D503

HVC358B

2

1

C508
5.6P

C508
5.6P

C428

4P

C428

4P

L453
1u

L453
1u

C143
0.1u

C143
0.1u

R653

100

R653

100

R432

150K

R432

150K

R266
100K

R266
100K

L504

100nH

L504

100nH

R421

0.39

R421

0.39

R519

560k

R519

560k

TC101
10p

TC101
10p

L112
47n

L112
47n

C515
0.1u

C515
0.1u

R651
4.7K

R651
4.7K

C650

0.1U

C650

0.1U

C431

10u/16V

C431

10u/16V

D501

BA277

D501

BA277

1

2

R443

0

R443

0

L505
8.2nH

L505
8.2nH

C457

2P

C457

2P

R403

330

R403

330

Q657
2SK1824

Q657
2SK1824

2

3

1

C445 470P

C445 470P

Q650
2SC5343

Q650
2SC5343

2

3

1

L510

1u

L510

1u

C100
0.22U

C100
0.22U

R509
100K

R509
100K

R416
15K

R416
15K

L501

5T

L501

5T

C522

10P

C522

10P

L650
601s

L650
601s

R405
680

R405
680

R408

10

R408

10

R652

100K

R652

100K

R513

47k

R513

47k

C116
0.3P

C116
0.3P

C123

6P

C123

6P

C461

3p

C461

3p

-

+

+

-

U430
NJM2904

-

+

+

-

U430
NJM2904

1

3

4

2

5

7

8

6

L401

22N

L401

22N

L103
3.3U

L103
3.3U

C433
0.1U

C433
0.1U

C401
470P

C401
470P

C415

0.1U

C415

0.1U

R441

4.7K

R441

4.7K

L409

NC

L409

NC

L509

330n

L509

330n

C102
0.33U

C102
0.33U

R520

2.7k

R520

2.7k

C103

NC

C103

NC

R109
120K

R109
120K

C506

12P

C506

12P

C561
2P

C561
2P

C418

0.1U

C418

0.1U

C512

470P

C512

470P

C265
1000P

C265
1000P

R420

0.39

R420

0.39

C533

1.5P

C533

1.5P

L113

18n

L113

18n

C115

3P

C115

3P

R434

150K

R434

150K

L452

4T

L452

4T

Q500

AT-41511

Q500

AT-41511

1

2

4

3

C424

0.5P

C424

0.5P

Q400

2SC5108

Q400

2SC5108

2

3

1

C514
100P

C514
100P

R514

33k

R514

33k

L502

5T

L502

5T

C416

0.01U

C416

0.01U

C502
5.6P

C502
5.6P

R440

820k

R440

820k

R107

180K

R107

180K

VR260

68K

VR260

68K

1

3

2

C546

0.01U

C546

0.01U

C456

1.5P

C456

1.5P

C444
NC

C444
NC

C117

470P

C117

470P

R540
100

R540
100

R115

3.3K

R115

3.3K

Q652 UMC4

Q652 UMC4

D104

BB179

D104

BB179

2

1

R431

150K

R431

150K

R400

10K

R400

10K

Q104
2SC5108

Q104
2SC5108

D103

HVC350B

D103

HVC350B

2

1

C459

1P

C459

1P

C441

1u

C441

1u

C540

0.01u

C540

0.01u

C432
470P

C432
470P

D101

HVC350B

D101

HVC350B

2

1

C510

20P

C510

20P

R430

150K

R430

150K

Q401
2SC4988

Q401
2SC4988

3

2

1

R260

100K

R260

100K

R511

56k

R511

56k

R437
1M

R437
1M

R504

12k

R504

12k

C135
10p

C135
10p

C412

270P

C412

270P

C451

3P

C451

3P

R510
47

R510
47

C409

0.1U

C409

0.1U

C114

4P

C114

4P

R412
4.7k

R412
4.7k

C110

9P

C110

9P

C127

0.1U

C127

0.1U

C417

470P

C417

470P

C434

2.2u/10V

C434

2.2u/10V

C653

1000P

C653

1000P

C436
470P

C436
470P

C538

470p

C538

470p

C101

4.7U/16V

C101

4.7U/16V

C536

470P

C536

470P

Q403

RD07

Q403

RD07

C526

6P

C526

6P

R411

56k

R411

56k

C429

27P

C429

27P

R406
10

R406
10

R407
330

R407
330

D504

HVC358B

D504

HVC358B

2

1

C542

0.01U

C542

0.01U

R113

3.3K

R113

3.3K

L404

221SG

L404

221SG

C426

0.5P

C426

0.5P

C263

NC

C263

NC

L408

82nH

L408

82nH

L530

22nH

L530

22nH

C541

10p

C541

10p

C519
6P

C519
6P

R410
47

R410
47

C105

1000P

C105

1000P

L500

4T

L500

4T

R401
22

R401
22

C521

2.7P

C521

2.7P

L114
22n

L114
22n

R102
1K

R102
1K

C420

NC

C420

NC

L513

NC

L513

NC

C410
470P

C410
470P

C440

1u

C440

1u

C112
0.5P

C112
0.5P

C437
470P

C437
470P

R114

330

R114

330

C113

5P

C113

5P

L405

10N

L405

10N

Q431

DTA114YE

Q431

DTA114YE

L111
39N

L111
39N

R505
8.2k

R505
8.2k

L104
23N

L104
23N

L102

3.3U

L102

3.3U

C455

3P

C455

3P

C462
3p

C462
3p

R267

47k

R267

47k

C266

100P

C266

100P

C651
1000P

C651
1000P

R419

150

R419

150

Q102
2SC5108

Q102
2SC5108

R415

47

R415

47

D100

HVC350B

D100

HVC350B

2

1

C118

0.1U

C118

0.1U

C505

3P

C505

3P

R516

270

R516

270

C535

2P

C535

2P

R413
0

R413
0

C405

6P

C405

6P

Q402
RD01

Q402
RD01

C264
1U/16V

C264
1U/16V

C534

NC

C534

NC

R435

150K

R435

150K

C450

100P

C450

100P

C458

1000p

C458

1000p

R442

4.7K

R442

4.7K

C530

470P

C530

470P

R116

10

R116

10

R110

1K

R110

1K

L512

27nH

L512

27nH

C132

10P

C132

10P

R501
100K

R501
100K

R263

3.3K

R263

3.3K

C452

1P

C452

1P

L407

600s

L407

600s

C547

0.01U

C547

0.01U

C500
3P

C500
3P

C435
10P

C435
10P

C130

6P

C130

6P

C411

39P

C411

39P

L107

27N

L107

27N

R274

NC

R274

NC

L506

5T

L506

5T

R275
NC

R275
NC

R261

10k

R261

10k

C277

0.01u

C277

0.01u

L400

22N

L400

22N

R264

82K

R264

82K

C122

5P

C122

5P

C531
6P

C531
6P

R650

1K

R650

1K

C419

0.01U

C419

0.01U

D400

BA277

D400

BA277

1

2

R506
1.8k

R506
1.8k

C430
470P

C430
470P

C527
1000p

C527
1000p

L108
3.3U

L108
3.3U

C560
3P

C560
3P

C517

NC

C517

NC

C138

5P

C138

5P

L106
3.3U

L106
3.3U

C655

0.1U

C655

0.1U

TP100

TP

TP100

TP

R409
1K

R409
1K

D508
HSM88

D508
HSM88

C107
100P

C107
100P

C404

470P

C404

470P

R402

47K

R402

47K

C137

3P

C137

3P

Содержание POWER446

Страница 1: ...POWER446 ...

Страница 2: ...rols 3 Software Specifications 4 Circuit Description 7 CPU Pins 15 Parts List 1 19 Tuning Description 34 Troubleshooting Flow Chart 42 Disassembly and Assembly 45 Exploded View 47 Parts List 2 48 Packing Guide 50 PCB View 51 Level Diagram 53 Block Diagram 54 Schematic Diagram 55 Specifications 58 ...

Страница 3: ...to its computer programs The purchase of this product shall not be deemed to grant either directly or by implication any rights to the purchaser regarding the Company s computer programs Any of the Company s computer programs may not be copied modified distributed decompiled or reverse engineered in any manner without the prior written consent of the Company Disclaimer The Company endeavors to ach...

Страница 4: ...POWER446 Service Manual 2 Product Overview Intended User This manual is intended for use by qualified technicians only ...

Страница 5: ... Part Name No Part Name 1 PTT Key 2 SK1 programmable 3 SK2 programmable 4 Speaker 5 Microphone 6 Antenna 7 LED Indicator 8 Channel Selector Knob 9 Radio On Off Volume Control Knob 10 Battery Latch 11 Accessory Jack 12 Accessory Jack Cover 13 Belt Clip 14 Battery 15 Screw Belt Clip 16 Charging Piece ...

Страница 6: ...ta version and serial No and etc 2 Factory Clone Mode Firstly make sure that the SELF pin of MCU on the source radio is grounded correctly and then connect two radios using a clone cable Power on the source radio while holding down SK2 and it will enter Factory Clone Mode after 2 seconds The target radio can be directly turned on to enter the User Mode The data transferred involves all data in EEP...

Страница 7: ...between TX tuning items and RX tuning items Rotate the Channel Selector knob to CH16 and long press PTT key to switch between TX group and RX group The LED glows red in TX group The LED glows green in RX group 3 To switch between tuning items within TX group RX group This operation is done through the Channel Selector knob TX group CH1 to CH14 respectively represent TX Preset Power TX Low Power TX...

Страница 8: ...several special items TX group CH9 to CH14 stand for VOX Level 1 VOX Level 2 VOX Level 3 VOX Level 4 VOX Level 5 and TX Low Voltage Threshold respectively These tuning items are related to AD sampling Press SK1 or SK2 after entering the above items to activate AD sampling including calculation once Rotate the Channel Selector knob to save the current AD sampling value RX group CH1 to CH7 stand for...

Страница 9: ... 0 KHz or 12 5 KHz reference frequencies via a fixed counter The signal from the VCO enters U202 after processed by the buffer Q102 and amplifier Q103 and then it is applied to the variable frequency divider in PLL for division After division the signal is compared with the reference frequency at a phase detector PD in PLL The signal from the PD passes through a low pass filter and then is applied...

Страница 10: ...iers Q400 and Q401 in sequence Then the amplified RF signal goes to Q402 which pre amplifies power of the input signal to drive the final stage power amplifier Q403 The input RF signal is then further amplified by Q403 and goes to the LC low pass filter LPF through the TX RX switching diode D401 Finally it is transmitted from the antenna after high order harmonics are removed by LPF 3 RX Amplifier...

Страница 11: ...al to provide the first IF signal for frequency discrimination by the demodulator chip The mixer Q501 employs a dual gate MOSFET 3SK318 for better noise control and square law performance as well as high isolation degree between the local oscillator signal and the RX signal In addition the mixer has a certain gain adjustable via offset so as to assure sufficient sensitivity After residual spurious...

Страница 12: ...k control power is generated when the TX current changes 5 Audio and Signaling Processing Circuit The baseband processor AN29160 is highly integrated and has multiple functions such as VOX Level Detect Output SQ Level Detect Output RX TX Audio Process Convert Audio Amplify etc In addition it can be used for both transmission and reception 1 TX Audio Signaling Process D104 Q100 2SK508NV TX VCO cpu ...

Страница 13: ...naling and voice components Therefore audio is processed as follows a RX audio processing One flow of audio signal from U200 goes back to U200 after passing through the RC low pass filter and de emphasis circuit This flow of audio signal is amplified at U200 and restored after frequencies below 300Hz are removed The restored audio signal is adjusted by the potentiometer and then applied to the aud...

Страница 14: ...omposed of MCU EEPROM reset IC keys and knobs etc This section has the following functions 1 Signal Control To control Battery Save Mode To control narrow band To control TX RX switch To control APC TUNE output voltage To control power supply of transmitter and audio amplifier To control SQL Off detection 2 Signal Detect To detect startup of external PTT MONI and VOX To detect PLL Unlock To detect...

Страница 15: ... be controlled alternately In addition to meet requirements of battery save mode MCU needs to output a pulse signal SAVE control signal with fixed duty ratio If the SAVE control signal is at high level Q610 is turned on and provides the 5V voltage V_SAVE for the operating circuit PLL and RX circuit If the SAVE control signal is a pulse signal the radio will enter Battery Save Mode During transmiss...

Страница 16: ...d into the accessory jack Q201 is cut off and MIC_EN switches from low level to high level Meantime Q202 and R204 form a loop circuit with the external earpiece Q202 is conductive and EXT PTT switches from low level to high level In this case the VOX earpiece is determined by MCU and the VOX function is enabled When the VOX level 5 selectable levels gets to the preset value transmission is initiat...

Страница 17: ...n resistor valid at high level 6 PE0 INT10 B_KEY I SK2 input pin connected with external pull up resistor valid at low level 7 P83 ENC3 I 8 P82 ENC2 I 9 P81 ENC1 I 10 P80 ENC0 I Channel Selector knob input pin connected with external pull up resistor 11 P71 TI0 T R O For TX RX switch control High RX Low TX 12 P70 TO0 Reserve O Reserved 13 MOD Programming I During programming this pin is used to co...

Страница 18: ... O 24 P02 INT02 Reserve O 25 P03 INT03 Reserve O Reserved 26 P04 INT04 PLLEN2 O PLL enable pin 27 P05 INT05 PLLDATA2 O PLL data pin 28 P06 INT06 PLLCLK2 O PLL clock pin 29 P07 INT07 UL2 I For detection of PLL circuit TB31202 H locked L unlocked connected with external pull up resistor 30 P10 UI0 RXD I UART RX pin During programming this pin is connected to UI 31 P11 UO0 TXD O UART TX pin During pr...

Страница 19: ...G11 PLLDATA O PLL data pin 46 P62 TO10 PLLEN O PLL enable pin 47 P63 TO11 Reserve O Reserved 48 P64 EC1 Reserve O Reserved 49 P65 SCK Reserve O Reserved 50 P66 SOT Reserve O Reserved 51 P67 SIN Self I Test pin used for Factory Clone Mode connected with pull up resistor 52 P43 AN11 SPCNT O Power control pin for main audio valid at high level 53 P42 AN10 PCONT O Power control pin for AN29160AA 54 P4...

Страница 20: ...POWER446 Service Manual 18 61 P32 AN02 Reserve O Reserved 62 P31 AN01 Reserve I AD VOX detection input pin 63 P30 AN00 Reserve Reserved 64 AVss GND For grounding ...

Страница 21: ...1 R202 B1D 20 3001051010040 Chip resistor 100Ω F 1 16W RoHS 1 R540 T2G 21 3001051010040 Chip resistor 100Ω F 1 16W RoHS 1 R653 T4G 22 3001051010040 Chip resistor 100Ω F 1 16W RoHS 1 R654 T4G 23 3001051010040 Chip resistor 100Ω F 1 16W RoHS 1 R660 B5J 24 3001051010040 Chip resistor 100Ω F 1 16W RoHS 1 R697 B4J 25 3001051010040 Chip resistor 100Ω F 1 16W RoHS 1 R698 B4J 26 3001051020000 Chip resisto...

Страница 22: ...696 B3J 63 3001051040000 Chip resistor 100KΩ F 1 16W RoHS 1 R208 B1F 64 3001051040000 Chip resistor 100KΩ F 1 16W RoHS 1 R260 B4I 65 3001051040000 Chip resistor 100KΩ F 1 16W RoHS 1 R262 B4H 66 3001051040000 Chip resistor 100KΩ F 1 16W RoHS 1 R266 T4H 67 3001051040000 Chip resistor 100KΩ F 1 16W RoHS 1 R311 T2I 68 3001051040000 Chip resistor 100KΩ F 1 16W RoHS 1 R501 T3D 69 3001051040000 Chip resi...

Страница 23: ...R224 T2K 107 3001051830000 Chip resistor 18KΩ J 1 16W RoHS 1 R233 T4K 108 3001051830000 Chip resistor 18KΩ J 1 16W RoHS 1 R239 T4K 109 3001051840000 Chip resistor 180KΩ J 1 16W RoHS 1 R107 T4G 110 3001051840000 Chip resistor 180KΩ J 1 16W RoHS 1 R238 T4K 111 3001051840000 Chip resistor 180KΩ J 1 16W RoHS 1 R316 T3I 112 3001051850000 Chip resistor 1 8MΩ J 1 16W RoHS 1 R228 T3K 113 3001052200010 Chi...

Страница 24: ...oHS 1 R203 B1F 151 3001054720000 Chip resistor 4 7KΩ J 1 16W RoHS 1 R231 T3K 152 3001054720000 Chip resistor 4 7KΩ J 1 16W RoHS 1 R412 T5F 153 3001054720000 Chip resistor 4 7KΩ J 1 16W RoHS 1 R441 B4J 154 3001054720000 Chip resistor 4 7KΩ J 1 16W RoHS 1 R442 B4J 155 3001054720000 Chip resistor 4 7KΩ J 1 16W RoHS 1 R651 T5G 156 3001054720000 Chip resistor 4 7KΩ J 1 16W RoHS 1 R699 B4J 157 300105472...

Страница 25: ...r 820KΩ F 1 16W RoHS 1 R440 B4D 195 3001058240000 Chip resistor 820KΩ F 1 16W RoHS 1 R705 T3K 196 3001058240000 Chip resistor 820KΩ F 1 16W RoHS 1 R706 T3K 197 3001061510000 Chip resistor 150Ω J 1 10W RoHS 1 R419 B5C 198 3001070000000 Chip resistor 0Ω J 1 8W RoHS 1 L202 B2D 199 3001070000000 Chip resistor 0Ω J 1 8W RoHS 1 R413 T5E 200 3005051020010 Integrated resistor 1K J 1 16W RoHS 1 RN1 T4J 201...

Страница 26: ...1051000020 Chip capacitor 10PF J 50V RoHS 1 C541 T2G 240 3101051000020 Chip capacitor 10PF J 50V RoHS 1 C543 CT2F 241 3101051010030 Chip capacitor 100PF J 50V RoHS 1 C107 T5I 242 3101051010030 Chip capacitor 100PF J 50V RoHS 1 C201 T1F 243 3101051010030 Chip capacitor 100PF J 50V RoHS 1 C206 T3K 244 3101051010030 Chip capacitor 100PF J 50V RoHS 1 C266 B4H 245 3101051010030 Chip capacitor 100PF J 5...

Страница 27: ...oHS 1 C685 B5J 283 3101051020010 Chip capacitor 1000PF K 50V RoHS 1 C686 B2I 284 3101051020010 Chip capacitor 1000PF K 50V RoHS 1 C689 B4I 285 3101051030020 Chip capacitor 0 01UF K 25V RoHS 1 C237 T3K 286 3101051030020 Chip capacitor 0 01UF K 25V RoHS 1 C259 B2E 287 3101051030020 Chip capacitor 0 01UF K 25V RoHS 1 C274 B1F 288 3101051030020 Chip capacitor 0 01UF K 25V RoHS 1 C277 B4K 289 310105103...

Страница 28: ...16V RoHS 1 C333 B1I 327 3101051040060 Chip capacitor 0 1UF K 16V RoHS 1 C409 T4E 328 3101051040060 Chip capacitor 0 1UF K 16V RoHS 1 C415 T4D 329 3101051040060 Chip capacitor 0 1UF K 16V RoHS 1 C418 B4C 330 3101051040060 Chip capacitor 0 1UF K 16V RoHS 1 C433 B4D 331 3101051040060 Chip capacitor 0 1UF K 16V RoHS 1 C511 T3F 332 3101051040060 Chip capacitor 0 1UF K 16V RoHS 1 C515 T3F 333 3101051040...

Страница 29: ...F 371 3101051820000 Chip capacitor 1800PF K 50V RoHS 1 C235 T3K 372 3101051830000 Chip capacitor 0 018UF K 16V RoHS 1 C207 T3K 373 3101052200010 Chip capacitor 22PF J 50V RoHS 1 C245 T4K 374 3101052210010 Chip capacitor 220PF K 50V RoHS 1 C260 B1D 375 3101052210010 Chip capacitor 220PF K 50V RoHS 1 C275 B1C 376 3101052220010 Chip capacitor 2200pF K 50V RoHS 1 C243 T4K 377 3101052220010 Chip capaci...

Страница 30: ...1 C538 T2G 415 3101054710010 Chip capacitor 470PF K 50V RoHS 1 C539 T1G 416 3101054710010 Chip capacitor 470PF K 50V RoHS 1 C601 T2B 417 3101054710010 Chip capacitor 470PF K 50V RoHS 1 C602 T2B 418 3101054710010 Chip capacitor 470PF K 50V RoHS 1 C648 B3A 419 3101054710010 Chip capacitor 470PF K 50V RoHS 1 C649 B2A 420 3101054710010 Chip capacitor 470PF K 50V RoHS 1 C654 T5G 421 3101054710010 Chip ...

Страница 31: ... 0 5PF B 50V RoHS 1 C426 T5C 461 3101061000000 Chip capacitor 10PF J 50V RoHS 1 C423 T4D 462 3101061010010 Chip capacitor 100PF J 50V RoHS 1 C450 T4C 463 3101061020000 Chip capacitor 1000PF K 50V RoHS 1 C458 T5C 464 3101061050020 Chip capacitor 1UF K 25V RoHS 1 C246 B3J 465 3101061050020 Chip capacitor 1UF K 25V RoHS 1 C247 B1E 466 3101061050020 Chip capacitor 1UF K 25V RoHS 1 C308 B3I 467 3101061...

Страница 32: ...p inductor3 3uH K 15mA 1 55Ω RoHS 1 L108 T4G 502 3213306332000 Multi layer chip inductor3 3uH K 15mA 1 55Ω RoHS 1 L109 T4H 503 3213306332000 Multi layer chip inductor3 3uH K 15mA 1 55Ω RoHS 1 L305 T3I 504 3221506601000 Bead600Ω 100MHz 25 500mA RoHS 1 L100 T5I 505 3221506601000 Bead600Ω 100MHz 25 500mA RoHS 1 L402 T4F 506 3221506601000 Bead600Ω 100MHz 25 500mA RoHS 1 L650 T4G 507 3221507221000 Bead...

Страница 33: ...2D 548 3499000000180 PNP transistor 12V 2 5A RoHS 1 Q610 T2E 549 3499000000180 PNP transistor 12V 2 5A RoHS 1 Q611 T2D 550 3501020000030 N MOSFET VDS 6V ID 20mA VGS th 0 7V RoHS 1 Q501 T2G 551 3503010000010 P MOSFET VDS 30V ID 100mA VGS th 1 9V RoHS 1 Q653 T4G 552 3503020000030 N MOSFET VDS 30V ID 100mA VGS th 3 0V RoHS 1 Q201 B1F 553 3503020000030 N MOSFET VDS 30V ID 100mA VGS th 3 0V RoHS 1 Q203...

Страница 34: ...0 Tantalum capacitor4 7uF K 16V RoHS 1 C101 T4I 592 3104071560040 Tantalum capacitor15UF M 6 3V RoHS 1 C312 B2I 593 3001051250000 Chip resistor 1 2M J 1 16W RoHS 1 R217 T2J 594 3001052210000 Chip resistor 220Ω J 1 16W RoHS 1 R709 T3K 595 3001055600000 Chip resistor 56Ω J 1 16W RoHS 1 R105 T5G 596 3101060700020 Chip capacitor 7PF B 50V RoHS 1 C422 T4D 597 3101061200000 Chip capacitor 12PF J 50V RoH...

Страница 35: ...Wire wound chip inductor 330nH J 400mA 0 6Ω RoHS 1 L509 T2G 636 3217105010000 Wire wound chip inductor 1nH J 1360mA 0 045Ω RoHS 1 R521 T3E 637 3217106829010 Wire wound chip inductor 8 2nH G 700mA RoHS 1 L505 T2F 638 3217112102020 Wire wound chip inductor 1uH J 370mA 1 75Ω RoHS 1 L510 T1G 639 3231351650000 Air core inductor E2 0 35 1 6 5TL RoHS 1 L501 T3D 640 3231351650000 Air core inductor E2 0 35...

Страница 36: ...ftware or through wired clone If any adjustment is required connect the programming cable to the radio and enter the tuning mode for PC adjustment 2 Radio Tuning Rotate the Channel Selector knob to CH1 and hold down PTT and SK2 for 1 5 seconds while powering on the radio The LED will glow orange when the radio enters the Tuning Mode After the keys are released the radio will enter the default tuni...

Страница 37: ...Y 6 SQL Off 9 Y Y Y Y Y 7 RX Low Voltage Threshold Y 8 Bandpass Filter Y Y Y Y Y Note Y indicates frequencies available for tuning and the rest are blank channels without tuning items 3 Specific Operations and Requirements 1 Tuning outside the mode conventional tuning items TX Frequency Tolerance VCO Lock Voltage Maximum Deviation and Modulation Sensitivity Note CH1 CH2 and CH3 have been preset as...

Страница 38: ...tool until the lock voltage meets the requirements 1 1 1 3V RX VCO Lock Voltage Set to CH3 Digital Voltmeter CV TC101 Check 1V Maximum Frequency Deviation Narrow Band Set to CH1 CH2 and CH3 respectivel y and hold down PTT to transmit Communicat ion Test Set BFP 20Hz 15k Hz AF 1kHz 150mV VR200 Tune VR200 with ceramic tuning tool until the frequency deviation satisfies the requirements 1 8 2 1KHz Mo...

Страница 39: ... frequencies refer to the table of Tuning Items Communicatio n Test Set Ammeter Antenna Connector SK1 SK2 Press SK1 or SK2 to tune the output power and rotate the Channel Selector knob to save it 0 5W 0 1W I 0 8A CDCSS Waveform Set to CH5 and hold down PTT to enable this function at low frequency Short press PTT to switch frequencies VR260 Tune VR260 with ceramic tuning tool and make the waveform ...

Страница 40: ...s function Communicatio n Test Set BPF 20Hz 15kHz AF 1kHz 10mV Apply SK1 or SK2 to perform tuning and rotate the Channel Selector knob to save it after one point tuning Set to CH11 and VOX Level 2 Press SK1 or SK2 to enable this function Communicatio n Test Set BPF 20Hz 15kHz AF 1kHz 6mV Apply SK1 or SK2 to perform tuning and rotate the Channel Selector knob to save it after one point tuning VOX S...

Страница 41: ...rt tone will sound to indicate transmission inhibition if PTT is held down Set to CH8 at low frequency RX Sensitivity Bandpass Short press PTT to switch frequencies Communicatio n Test Set SSG 119dBm MOD 1KHz DEV 3 0KHz Filter 0 3 3KHz Antenna Earpiece Socket SK1 SK2 Check the bandpass waveform Apply SK1 or SK2 to perform tuning and rotate the Channel Selector knob to save it after five point tuni...

Страница 42: ...rt press PTT to switch the frequency Communicatio n Test Set SSG 115dBm MOD 1KHz DEV 1 5KHz Filter 0 3 3KHz Antenna Earpiece Socket SK1 SK2 Tune the SSG output signal to squelch level Rotate the Channel Selector knob to save the value after five point tuning Squelch level Level 9 SINAD 17 1dB RX Low Voltage Threshold Digital Voltmeter Power Supply Port Power supply Tune the output voltage and chec...

Страница 43: ...1 125 128 131 135 69 72 72 75 77 CTCSS Deviation 151 8Hz 121 124 126 128 131 68 70 72 73 75 CTCSS Deviation 254 1Hz 133 135 137 140 143 75 77 78 78 81 VOX Level 1 55 VOX Level 2 45 VOX Level 3 25 VOX Level 4 19 VOX Level 5 15 TX Low Voltage Threshold 158 SQL On 1 27 25 27 25 24 18 18 17 17 20 SQL On 5 21 19 19 18 19 14 13 13 13 14 SQL On 9 9 9 9 9 9 7 7 7 7 7 SQL Off 1 39 30 31 32 32 27 26 24 25 2...

Страница 44: ...pply LED of D602 glows red Check the TX power supply TX VCO locked Check the TX VCO Check the TX channel Replace D602 No sound LED fails to glow flash Check the antenna Check Q400 Q401 Q402 and Q403 Yes No Check the APC circuit Low TX power Check the voice channel MIC VR200 D104 Replace D602 Yes No No Yes ...

Страница 45: ...rocessor U200 output signals normally The modulation parts work normally IF mixer circuit works normally RF mixer circuit works normally Change the RX frequency Change the RX SQL level Replace the RX LED D601 Change the RX signaling Replace the speaker Check the audio amplifier circuit Replace the Volume Control knob Check audio processing circuit Check and replace CD300 and CF300 Check Q105 U200 ...

Страница 46: ...he speaker works normally Yes No Yes No Clock crystal X601 of MCU works normally Normal VCC operating voltage of MCU Yes No Check U606 Replace X601 No Yes Other pins control normally MCU works normally Yes No Check pin connection or reprogram Replace the speaker ...

Страница 47: ...ctor knob Unscrew the nut for the volume control knob Unscrew the nut for the channel selector knob Unfasten the two screws at the bottom of the radio Figure 1 Lift the bottom of the aluminum chassis pull the aluminum chassis backwards and take it out Remove the rear cover Figure 2 The disassembled parts are shown as figure 3 5 5 4 3 2 1 7 6 ...

Страница 48: ...POWER446 Service Manual 46 Figure 3 Assembling the Aluminum Chassis To assemble the aluminum chassis please perform the above steps in a reverse way ...

Страница 49: ...POWER446 Service Manual 47 Exploded View 5 8 9 13 16 12 11 20 22 19 18 3 4 2 44 42 39 41 32 34 35 28 27 26 38 17 30 31 36 15 14 33 45 43 6 1 37 23 29 25 10 40 21 7 24 46 ...

Страница 50: ...0032000000 Metal dome for PTT key 00 RoHS 1 18 5205000001000 Battery connector RoHS 1 19 6100314000000 Waterproof ring for battery connector 00 RoHS 1 20 7103006001000 Machine screw 00 RoHS 2 21 7500116000020 Heat sink pad 02 RoHS 1 22 7102005000000 Machine screw 00 RoHS 2 23 6000843100000 Rear cover 00 RoHS 1 24 7400218000000 Waterproof and dustproof breathable film 00 RoHS 1 25 7102508000010 Mac...

Страница 51: ... 1 41 6000848000010 Earpiece jack cover 01 RoHS 1 42 6000847000000 Light guide 00 RoHS 1 43 6100334000000 O ring for encoder switch 00 RoHS 2 44 7207002200200 Nut 00 RoHS 2 45 6202157000000 Inner lining of volume control knob 00 RoHS 1 46 6000846100010 Volume control knob 01 RoHS 1 ...

Страница 52: ...POWER446 Service Manual 50 Packing Guide ...

Страница 53: ......

Страница 54: ......

Страница 55: ...5M Q500 AT41511 Q500 AT41511 Q401 2SK4988 Q401 2SK4988 1 2 3 Q501 3SK318 Q501 3SK318 3 2 4 1 IFAmp 1 AF HPF Volume MIX2 2ndIF BPF IFAmp 2 DET de emphasis 23 25 29 44 AF mute AN29160 IFAmp 1 AF HPF Volume MIX2 2ndIF BPF IFAmp 2 DET de emphasis 23 25 29 44 AF mute AN29160 52 21 Q400 2SC5108 Q400 2SC5108 1 2 3 C405 C405 BPF BPF C C C400 C400 SW SW MICROPHONE MICROPHONE C141 C141 RD01 Q402 RD01 Q402 2...

Страница 56: ...REG mic mute RF PA TX Vcc VCC LIM TX Q610 TXC TX VCO AUDIO OUT From MCU SQ LPF D601 LIGHTING 1 2 32 33 17bitDIV 21bitDIV 1 2 OSC CP U202 Pre Emphasis RX PLLEN PLLDATA PLLCLK 3 TC 610 620 UHF BLOCK DIAGRAM AF AMP Q502 U430 7 3728M 7 3728M green green 7 5V 7 5V L101 L101 Q6 Q6 1 2 3 Q400 Q400 1 2 3 L102 L102 SW SW 1 2 3 C504 C504 16Ω IW 16Ω IW PTT PTT 2 1 3 Q101 Q101 Q104 Q104 1 2 3 38 85MHZ 38 85MH...

Страница 57: ...02 10K R302 10K C316 470p C316 470p R318 0 R318 0 R236 3 3K R236 3 3K R210 NC R210 NC R219 56K R219 56K C226 1U C226 1U C337 470P C337 470P L303 330NH L303 330NH C341 1000 P C341 1000 P C217 0 1U C217 0 1U R247 10 R247 10 U201 TDA2822D U201 TDA2822D O1 1 VCC 2 O2 3 GND 4 2IN 5 2IN 6 IN 7 IN 8 D210 EDZ6 8B D210 EDZ6 8B J3 PJ D3027D J3 PJ D3027D 1 5 2 4 3 R229 120K R229 120K C255 0 1U C255 0 1U R237...

Страница 58: ...00K R647 100K R701 330K R701 330K C685 1000P C685 1000P C662 0 01U C662 0 01U C642 0 1u C642 0 1u C681 0 01u C681 0 01u Q613 UMG3N Q613 UMG3N C689 1000P C689 1000P B B 2 1 C679 3900P C679 3900P C656 0 01U C656 0 01U C684 1000p C684 1000p R697 100 R697 100 C682 47u 16V C682 47u 16V C658 1000p C658 1000p C661 1000p C661 1000p R636 47K R636 47K R648 470K R648 470K R641 47K R641 47K U605 MB95F108AMWPF...

Страница 59: ...SK1824 2 3 1 C445 470P C445 470P Q650 2SC5343 Q650 2SC5343 2 3 1 L510 1u L510 1u C100 0 22U C100 0 22U R509 100K R509 100K R416 15K R416 15K L501 5T L501 5T C522 10P C522 10P L650 601s L650 601s R405 680 R405 680 R408 10 R408 10 R652 100K R652 100K R513 47k R513 47k C116 0 3P C116 0 3P C123 6P C123 6P C461 3p C461 3p U430 NJM2904 U430 NJM2904 1 3 4 2 5 7 8 6 L401 22N L401 22N L103 3 3U L103 3 3U C...

Страница 60: ... Stability 2 5ppm Receiver Sensitivity 0 282uV Adjacent Channel Selectivity 60dB Intermodulation 60dB Spurious Response Rejection 70dB Rated Audio Power Output 800mW Rated Audio Distortion 5 800mW Transmitter RF Power Output 0 5W Spurious and Harmonics 36dBm frequency 1GHz 30dBm frequency 1GHz Modulation Limiting 2 5KHz Modulation Distortion 5 Note All Specifications are tested according to TIA EI...

Страница 61: ...8130044600200 http www hytera com ...

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