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TC-268/368

Service Manual

38

Parts List 1

432

3101063330030

Chip capacitor 0603 0.033UF K

1

C321

B1A

433

3101063330030

Chip capacitor 0603 0.033UF K

1

C503

T5C

434

3101063330030

Chip capacitor 0603 0.033UF K

1

C702

T4H

435

3101063900000

Chip capacitor 0603 39PF J 50V

1

C33

B1G

436

3101063920000

Chip capacitor 0603 3900PF K 5

1

C502

T5C

437

3101063920000

Chip capacitor 0603 3900PF K 5

1

C701

T4H

438

3101064700000

Chip capacitor 0603 47PF J 50V

1

C10

B3D

439

3101064700000

Chip capacitor 0603 47PF J 50V

1

C136

B4I

440

3101064710000

Chip capacitor 0603 470PF K 50

1

C131

B3I

441

3101064710000

Chip capacitor 0603 470PF K 50

1

C132

T1I

442

3101064710000

Chip capacitor 0603 470PF K 50

1

C141

T2I

443

3101064710000

Chip capacitor 0603 470PF K 50

1

C203

B4B

444

3101064710000

Chip capacitor 0603 470PF K 50

1

C232

B3E

445

3101064710000

Chip capacitor 0603 470PF K 50

1

C25

B1C

446

3101064710000

Chip capacitor 0603 470PF K 50

1

C411

T2A

447

3101064710000

Chip capacitor 0603 470PF K 50

1

C506

T3G

448

3101064710000

Chip capacitor 0603 470PF K 50

1

C526

T4H

449

3101064710000

Chip capacitor 0603 470PF K 50

1

C532

B5H

450

3101064720000

Chip capacitor 0603 4700PF K 5

1

C204

B4B

451

3101064730000

Chip capacitor 0603 47NF K 16V

1

C306

B2B

452

3101064730000

Chip capacitor 0603 47NF K 16V

1

C319

B4A

453

3101064730000

Chip capacitor 0603 47NF K 16V

1

C334

T2E

454

3101064730000

Chip capacitor 0603 47NF K 16V

1

C335

T2F

455

3101064730000

Chip capacitor 0603 47NF K 16V

1

C511

T3F

456

3101064730000

Chip capacitor 0603 47NF K 16V

1

C514

T3F

457

3101064740020

Chip capacitor 0603 0.47UF Z 1

1

C333

T1E

458

3101065600000

Chip capacitor 0603 56PF J 50V

1

C126

B4I

459

3101065600000

Chip capacitor 0603 56PF J 50V

1

C338

B4A

460

3101065620010

Chip capacitor 0603 5600PF K 5

1

C308

B3A

461

3101066800000

Chip capacitor 0603 68PF J 50V

1

C16

B4D

462

3101066800000

Chip capacitor 0603 68PF J 50V

1

C51

B4C

463

3101066810020

Chip capacitor 0603 680PF K 50

1

C24

B1D

464

3101066820000

Chip capacitor 0603 6800PF K 5

1

C704

T4H

465

3101068200000

Chip capacitor 0603 82PF J 50V

1

C208

B5B

466

3101068210000

Chip capacitor 0603 820PF K 50

1

C510

T3E

467

3101068220000

Chip capacitor 0603 8200PF K 5

1

C300

B2B

468

3101071020010

Chip capacitor 0805 1000PF K 2

1

C529

T5I

469

3101071040000

Chip capacitor 0805 0.1UF K 25

1

C322

B1A

470

3101071040000

Chip capacitor 0805 0.1UF K 25

1

C522

T4G

471

3101071050010

Chip capacitor 0805 1UF K 10V

1

C313

B3B

472

3101071050010

Chip capacitor 0805 1UF K 10V

1

C424

B2J

473

3101071050010

Chip capacitor 0805 1UF K 10V

1

C429

B3H

474

3101071050010

Chip capacitor 0805 1UF K 10V

1

C430

B2J

475

3101071050010

Chip capacitor 0805 1UF K 10V

1

C505

T3E

476

3101072240000

Chip capacitor 0805 0.22UF K 2

1

C12

B1C

477

3101072240000

Chip capacitor 0805 0.22UF K 2

1

C8

B1C

478

3101081050010

Chip capacitor 1206 1UF Z 25V

1

C121

B3J

479

3101081050010

Chip capacitor 1206 1UF Z 25V

1

C417

T5A

TC-268 (2) Parts List 1

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Содержание TC-268

Страница 1: ...www hyt com cn ...

Страница 2: ... 1 15 TC 368 Parts List 1 43 Adjustment Description 57 Disassembly 61 Exploded View 62 Parts List 2 63 Packing 65 TC 268 PC Board View 66 TC 368 PC Board View 68 TC 268 Level Diagram 70 TC 368 Level Diagram 71 TC 268 Block Diagram 72 TC 368 Block Diagram 73 TC 268 Schematic Diagram 74 TC 368 Schematic Diagram 75 Specifications 76 ...

Страница 3: ......

Страница 4: ...an airbag do not place a portable radio in the area over an airbag or in the airbag deployment area z Do not expose the radio to direct sunlight for a long time nor place it close to a heating source z Do not use any portable radio with a damaged antenna If a damaged antenna comes into contact with your skin a minor burn may result z When transmitting with a portable radio hold the radio in a vert...

Страница 5: ...nsmitting green LED lights up while receiving a signal LED flashes red if the battery voltage goes low while transmitting 4 Power Volume control knob Rotate the knob clockwise to turn on the radio anti clockwise till a click is heard to turn off the radio When power on rotate the knob to adjust the volume level 5 Speaker 6 Microphone 7 PTT switch push to talk Hold down the PTT and speak into the m...

Страница 6: ...0 Busy channel lockout 11 Clock frequency deviation 12 Scan 13 PC mode 14 PC tuning mode 15 Wired clone 16 Manual adjusting mode II Description 1 User mode normal communication mode 2 PC mode The following parameters can be set via external programmer or PC programming software 1 Receive frequency Transmit frequency 2 Receive signaling Transmit signaling 3 Busy channel lockout 4 Clock frequency de...

Страница 7: ...de Channel data and settings are initialized 4 Turn off the radio disconnect the two SELF points on PCB to end mode settings Take TC 268 2 for example its number is 2 to initialize its model and channel data Short circuit the two SELF points on PCB and turn on the radio set the channel selector knob at CH2 and then press PTT while holding down MONI channel data of CH1 CH2 CH3 and CH4 is initialize...

Страница 8: ...40 100 259 975 259 900 9 406 000 429 995 410 000 38 85 418 100 418 100 418 000 418 100 406 000 406 100 429 975 429 900 10 144 000 147 995 145 000 38 85 146 100 146 100 146 000 146 100 144 000 144 100 147 975 147 900 11 336 000 367 995 350 000 38 85 352 100 352 100 352 000 352 100 336 000 336 100 367 975 367 900 12 268 000 395 995 380 000 38 85 382 100 382 100 382 000 382 100 268 000 268 100 395 97...

Страница 9: ...ound is Wide CH 13 16 are defined as follows 13 Medium frequency discrepancy between transmission and receive frequency is 0 1MHz 14 Lowest frequency discrepancy between transmission and receive frequency is 0 1MHz 15 Highest frequency discrepancy between transmission and receive frequency is 0 075MHz 16 Medium frequency transmit with 250 3Hz CTCSS signals discrepancy between transmission and rece...

Страница 10: ...ctor L unlock 33 DT O Common data output 34 CK O Common clock output 35 LE O PLL IC H lock up 36 5MC O Power control except CPU and EEPROM L unlock 37 AFCO O AF amplifier H unlock 38 RX O TX RX VCO H receive 39 GLED O Green LED control H light up 40 RLED O Red LED control H light up 41 SAVE O Battery save control H Battery save OFF 42 MUTE O Squelch control H mic squelch L AF squelch 43 5RC O Rece...

Страница 11: ...uble conversion superheterodyne 1 a Front end RF amplifier TC 268 An input signal from the antenna is applied to an RF amplifier Q203 after passing through a transmit receive switch circuit D 102 and D103 are off and a band pass filter L208 L209 and L210 After the signal is amplified Q203 the signal is filtered through a band pass filter L203 and L214 to eliminate unwanted signals before it is pas...

Страница 12: ...ve spurious signals 3 IF amplifier The first IF signal is amplified by Q201 and then enters IC 200 IF processing IC The signal is heterodyned again with a second local oscillator signal within IC200 to create a 450kHz second IF signal The second IF signal is then fed through a 450kHz ceramic filter CF200 to further eliminate unwanted signals before it is amplified and FM detected in IC200 4 AF amp...

Страница 13: ...oscillator signal for reception and the RF signal for transmission 1 PLL The frequency step of the PLL circuit is 5 or 6 25kHz A 12 8MHz reference oscillator signal is divided at IC1 by a fixed counter to produce the 5 or 6 25kHz reference frequency The voltage controlled oscillator VCO output signal is buffer amplified by Q6 then divided in IC1 by a dual module programmable counter The divided si...

Страница 14: ...lk switch input signal See Fig 5 IC1 LD PLL IC D7 5C R6 C1 IC403 UL MPU Fig 5 Unlock detector circuit 4 Transmitter 1 Transmit audio The modulation signal from the microphone is amplified by IC500 1 2 passes through a pre emphasis circuit and amplified by the other IC500 1 2 to perform IDC operation The signal then passes through a low pass filter splatter filter Q501 and Q502 and cuts 3kHz and hi...

Страница 15: ... 103 RX Q106 SW Q109 SW 5T IC100 APC DET Q103 Q104 B SW B APC 5T TH100 SW Q107 5T Q108 SW Fig 7 a APC system 3 b RF amplifier TC 368 The transmit signal obtained from the VCO buffer amplifier Q100 is amplified by Q101 and Q102 This amplified signal is passed to the power amplifier Q105 and Q107 which consists of a 2 stage FET amplifier and is capable of producing up to 4W of RF power See Fig 7 b D...

Страница 16: ...the difference between the sensed voltage and the reference voltage appears at the output of IC100 1 2 This output voltage controls the gate of the FET power amplifier which keeps the transmitter output power can be varied by the microprocessor which in turn changes the reference voltage and hence the output power 6 Terminal protection circuit When the thermistor TH102 reaches about 80 the protect...

Страница 17: ... 1 10 1 R200 B5C 22 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R3 B2D 23 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R334 T2F 24 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R412 T3B 25 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R417 T4K 26 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R104 B2G 27 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R14 B3D 28 3001061010000 Chip resistor 0603 10...

Страница 18: ...D 69 3001061040010 Chip resistor 0603 100KΩ J 1 1 R226 B4E 70 3001061040010 Chip resistor 0603 100KΩ J 1 1 R230 B5F 71 3001061040010 Chip resistor 0603 100KΩ J 1 1 R237 B4F 72 3001061040010 Chip resistor 0603 100KΩ J 1 1 R238 B4H 73 3001061040010 Chip resistor 0603 100KΩ J 1 1 R239 B4H 74 3001061040010 Chip resistor 0603 100KΩ J 1 1 R24 B1F 75 3001061040010 Chip resistor 0603 100KΩ J 1 1 R291 B4F ...

Страница 19: ...061830010 Chip resistor 0603 18KΩ J 1 1 1 R529 T4G 118 3001061840000 Chip resistor 0603 180KΩ J 1 1 R145 T1I 119 3001061840000 Chip resistor 0603 180KΩ J 1 1 R202 B4B 120 3001061840000 Chip resistor 0603 180KΩ J 1 1 R206 B4B 121 3001061840000 Chip resistor 0603 180KΩ J 1 1 R293 B4F 122 3001061840000 Chip resistor 0603 180KΩ J 1 1 R318 B4A 123 3001061850000 Chip resistor 0603 1 8MΩ J 1 1 R512 T3E 1...

Страница 20: ...001063330010 Chip resistor 0603 33KΩ J 1 1 1 R515 T3F 166 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R519 T3F 167 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R520 T3F 168 3001063340000 Chip resistor 0603 330KΩ J 1 1 R400 T2B 169 3001063340000 Chip resistor 0603 330KΩ J 1 1 R8 B3D 170 3001063920000 Chip resistor 0603 3 9KΩ J 1 1 R107 B3F 171 3001063920000 Chip resistor 0603 3 9KΩ J 1 1 R201 B3...

Страница 21: ...3001065620000 Chip resistor 0603 5 6KΩ D 1 1 R604 T2A 214 3001065630000 Chip resistor 0603 56KΩ J 1 1 1 R335 T2F 215 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R122 T2J 216 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R126 T2J 217 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R25 B2F 218 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R9 B1C 219 3001066820000 Chip resistor 0603 6 8KΩ J 1 1 R503 ...

Страница 22: ...hip capacitor 0603 6PF B 50V 1 C233 B3E 262 3101060600010 Chip capacitor 0603 6PF B 50V 1 C237 B4E 263 3101060800010 Chip capacitor 0603 8PF B 50V 1 C128 B4I 264 3101060800010 Chip capacitor 0603 8PF B 50V 1 C129 B4I 265 3101060800010 Chip capacitor 0603 8PF B 50V 1 C222 B3E 266 3101060800010 Chip capacitor 0603 8PF B 50V 1 C241 B5G 267 3101060800010 Chip capacitor 0603 8PF B 50V 1 C35 B1F 268 310...

Страница 23: ...01061020000 Chip capacitor 0603 1000PF K 5 1 C239 B4E 310 3101061020000 Chip capacitor 0603 1000PF K 5 1 C240 B3E 311 3101061020000 Chip capacitor 0603 1000PF K 5 1 C245 B4F 312 3101061020000 Chip capacitor 0603 1000PF K 5 1 C246 B5E 313 3101061020000 Chip capacitor 0603 1000PF K 5 1 C249 B5E 314 3101061020000 Chip capacitor 0603 1000PF K 5 1 C250 B5F 315 3101061020000 Chip capacitor 0603 1000PF K...

Страница 24: ...030010 Chip capacitor 0603 0 01UF K 2 1 C309 B1B 358 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C312 B1B 359 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C316 B1B 360 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C336 T1F 361 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C39 B1E 362 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C418 T4K 363 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C...

Страница 25: ...1061500010 Chip capacitor 0603 15PF J 50V 1 C219 B3E 406 3101061500010 Chip capacitor 0603 15PF J 50V 1 C259 B4H 407 3101061800000 Chip capacitor 0603 18PF J 50V 1 C113 B3G 408 3101061800000 Chip capacitor 0603 18PF J 50V 1 C255 B4G 409 3101061800000 Chip capacitor 0603 18PF J 50V 1 C36 B1F 410 3101061800000 Chip capacitor 0603 18PF J 50V 1 C38 B1E 411 3101061830000 Chip capacitor 0603 0 018UF K 1...

Страница 26: ...064730000 Chip capacitor 0603 47NF K 16V 1 C306 B2B 454 3101064730000 Chip capacitor 0603 47NF K 16V 1 C319 B4A 455 3101064730000 Chip capacitor 0603 47NF K 16V 1 C334 T2E 456 3101064730000 Chip capacitor 0603 47NF K 16V 1 C335 T2F 457 3101064730000 Chip capacitor 0603 47NF K 16V 1 C511 T3F 458 3101064730000 Chip capacitor 0603 47NF K 16V 1 C514 T3F 459 3101064740020 Chip capacitor 0603 0 47UF Z 1...

Страница 27: ...ductor 0603 68nH LQW18 1 L208 B4G 503 3210106680009 Bobbin inductor 0603 68nH LQW18 1 L214 B4E 504 3210107330009 Bobbin inductor 0805 33nH LQW2B 1 L107 B3H 505 3210108270000 Bobbin inductor 1206 27nH LQW31 1 L10 B1F 506 3210108330009 Bobbin inductor 1206 33nH LQW31 1 L11 B2E 507 3210209102019 Bobbin inductor 1210 1uH LQH32M 1 L118 T2J 508 3210306101009 Multi layers chip inductor 0603 100nH LQG1 1 ...

Страница 28: ...8 3231351670009 Air core inductor E2 0 35 1 6 7TR 1 L113 B4I 549 3231501630009 Air core inductor E2R 0 5 1 6 3T 1 L110 B3I 550 3303010500029 Switching diode 1SS372 TE85L 1 D500 T4G 551 3303020100029 Switching diode MA2S11100L SS 1 D6 B2F 552 3303020100029 Switching diode MA2S11100L SS 1 D7 B1C 553 3303020100079 Switching diode MA2Z07700L SOD 1 D101 B4I 554 3303020100089 Switching diode MA2S07700L ...

Страница 29: ...9 Transistor 2SC5343EG NPN AU 1 Q502 T3F 597 3411002000009 Transistor 2SC5343EG NPN AU 1 Q503 T4H 598 3411002000009 Transistor 2SC5343EG NPN AU 1 Q8 B2F 599 3499000000119 Transistor 2SC4619TLP SOD 3 1 Q201 B5C 600 3499000000159 Transistor UMC4N TR 1 Q7 B1F 601 3499000000179 Transistor UFMMT591 PNP SOT 1 Q406A B2I 602 3499000000179 Transistor UFMMT591 PNP SOT 1 Q406B B2I 603 3499000000189 Transisto...

Страница 30: ... 3701012850019 TCXO 12 8MHz NSA 1 X1 B3C 631 3701737230009 Crystal 7 3728MHz 1 X400 T3A 632 3802388540019 Crystal filter 38 850MHz 7 5 1 XF200 B4D 633 4002000000059 Fuse R429003 3 0A 32 1 F500 T5J 634 4100268100100 TC 268S PCB FR4 1 0T 1 635 5202010100039 Plug AXK6F10345J 10pin 1 CN400 TG4 636 3104081060080 Tantalum capacitor 1206 10UF M 10V 1 C200 B4B 637 3104081060080 Tantalum capacitor 1206 10U...

Страница 31: ...0000 Chip resistor 0603 10Ω J 1 10 1 R3 B2D 23 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R334 T2F 24 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R412 T3B 25 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R417 T4K 26 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R104 B2G 27 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R14 B3D 28 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R223 B3E 29 300106...

Страница 32: ...D 70 3001061040010 Chip resistor 0603 100KΩ J 1 1 R226 B4E 71 3001061040010 Chip resistor 0603 100KΩ J 1 1 R230 B5F 72 3001061040010 Chip resistor 0603 100KΩ J 1 1 R237 B4F 73 3001061040010 Chip resistor 0603 100KΩ J 1 1 R238 B4H 74 3001061040010 Chip resistor 0603 100KΩ J 1 1 R239 B4H 75 3001061040010 Chip resistor 0603 100KΩ J 1 1 R24 B1F 76 3001061040010 Chip resistor 0603 100KΩ J 1 1 R291 B4F ...

Страница 33: ...01061840000 Chip resistor 0603 180KΩ J 1 1 R145 T1I 119 3001061840000 Chip resistor 0603 180KΩ J 1 1 R202 B4B 120 3001061840000 Chip resistor 0603 180KΩ J 1 1 R206 B4B 121 3001061840000 Chip resistor 0603 180KΩ J 1 1 R293 B4F 122 3001061840000 Chip resistor 0603 180KΩ J 1 1 R318 B4A 123 3001061850000 Chip resistor 0603 1 8MΩ J 1 1 R512 T3E 124 3001061850000 Chip resistor 0603 1 8MΩ J 1 1 R517 T3F ...

Страница 34: ...001063330010 Chip resistor 0603 33KΩ J 1 1 1 R519 T3F 167 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R520 T3F 168 3001063340000 Chip resistor 0603 330KΩ J 1 1 R400 T2B 169 3001063340000 Chip resistor 0603 330KΩ J 1 1 R8 B3D 170 3001063920000 Chip resistor 0603 3 9KΩ J 1 1 R107 B3F 171 3001063920000 Chip resistor 0603 3 9KΩ J 1 1 R201 B3B 172 3001063920000 Chip resistor 0603 3 9KΩ J 1 1 R220 B3E...

Страница 35: ...001065630000 Chip resistor 0603 56KΩ J 1 1 1 R335 T2F 215 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R122 T2J 216 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R126 T2J 217 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R25 B2F 218 3001066810010 Chip resistor 0603 680Ω J 1 1 1 R9 B1C 219 3001066820000 Chip resistor 0603 6 8KΩ J 1 1 R503 T2D 220 3001066820000 Chip resistor 0603 6 8KΩ J 1 1 R505 T...

Страница 36: ...ip capacitor 0603 6PF B 50V 1 C233 B3E 263 3101060600010 Chip capacitor 0603 6PF B 50V 1 C237 B4E 264 3101060600010 Chip capacitor 0603 6PF B 50V 1 C35 B1F 265 3101060800010 Chip capacitor 0603 8PF B 50V 1 C140 B4J 266 3101060800010 Chip capacitor 0603 8PF B 50V 1 C144 B4J 267 3101060800010 Chip capacitor 0603 8PF B 50V 1 C222 B3E 268 3101060800010 Chip capacitor 0603 8PF B 50V 1 C248 B5E 269 3101...

Страница 37: ...01061020000 Chip capacitor 0603 1000PF K 5 1 C246 B5E 311 3101061020000 Chip capacitor 0603 1000PF K 5 1 C249 B5E 312 3101061020000 Chip capacitor 0603 1000PF K 5 1 C250 B5F 313 3101061020000 Chip capacitor 0603 1000PF K 5 1 C251 B4F 314 3101061020000 Chip capacitor 0603 1000PF K 5 1 C253 B4E 315 3101061020000 Chip capacitor 0603 1000PF K 5 1 C256 B5B 316 3101061020000 Chip capacitor 0603 1000PF K...

Страница 38: ...030010 Chip capacitor 0603 0 01UF K 2 1 C316 B1B 359 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C336 T1F 360 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C39 B1E 361 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C418 T4K 362 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C42 B1F 363 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C420 T4K 364 3101061030010 Chip capacitor 0603 0 01UF K 2 1 C4...

Страница 39: ...01061800000 Chip capacitor 0603 18PF J 50V 1 C36 B1F 407 3101061800000 Chip capacitor 0603 18PF J 50V 1 C38 B1E 408 3101061830000 Chip capacitor 0603 0 018UF K 1 C301 B3B 409 3101062000000 Chip capacitor 0603 20PF J 50V 1 C146 B4J 410 3101062000000 Chip capacitor 0603 20PF J 50V 1 C238 B4E 411 3101062000000 Chip capacitor 0603 20PF J 50V 1 C247 B5F 412 3101062000000 Chip capacitor 0603 20PF J 50V ...

Страница 40: ...101064730000 Chip capacitor 0603 47NF K 16V 1 C335 T2F 455 3101064730000 Chip capacitor 0603 47NF K 16V 1 C511 T3F 456 3101064730000 Chip capacitor 0603 47NF K 16V 1 C514 T3F 457 3101064740020 Chip capacitor 0603 0 47UF Z 1 1 C333 T1E 458 3101065600000 Chip capacitor 0603 56PF J 50V 1 C126 B4I 459 3101065600000 Chip capacitor 0603 56PF J 50V 1 C338 B4A 460 3101065620010 Chip capacitor 0603 5600PF ...

Страница 41: ...hip inductor 0603 100nH LQG1 1 L12 B2F 504 3210306221009 Multi layers chip inductor 0603 220nH LQM1 1 L400 T3D 505 3210306221009 Multi layers chip inductor 0603 220nH LQM1 1 L402 T3D 506 3210306221009 Multi layers chip inductor 0603 220nH LQM1 1 L403 T3B 507 3210306270009 Multi layers chip inductor 0603 27nH LQG18 1 L103 B3G 508 3210306470009 Multi layers chip inductor 0603 47nH LQG18 1 L13 B2E 50...

Страница 42: ...G 549 3303020100029 Switching diode MA2S11100L SS 1 D6 B2F 550 3303020100029 Switching diode MA2S11100L SS 1 D7 B1C 551 3303020100079 Switching diode MA2Z07700L SOD 1 D101 B4I 552 3303020100089 Switching diode MA2S07700L 1 D100 B3F 553 3303020100089 Switching diode MA2S07700L 1 D102 B4I 554 3303020100089 Switching diode MA2S07700L 1 D103 B4I 555 3303020100089 Switching diode MA2S07700L 1 D200 B3F ...

Страница 43: ...19TLP SOD 3 1 Q201 B5C 598 3499000000159 Transistor UMC4N TR 1 Q7 B1F 599 3499000000179 Transistor UFMMT591 PNP SOT 1 Q406A B2I 600 3499000000179 Transistor UFMMT591 PNP SOT 1 Q406B B2I 601 3499000000189 Transistor UFMMT717 1 Q104 T2J 602 3501020000019 FET 3SK318YB N chan 1 Q202 B3E 603 3501020000019 FET 3SK318YB N chan 1 Q203 B4F 604 3502010000009 FET 2SK1875 V TE85L 1 Q3 B1F 605 3502010000009 FE...

Страница 44: ...540019 Crystal filter 38 850MHz 7 5 1 XF200 B4D 631 4002000000059 Fuse R429003 3 0A 32 1 F500 T5J 632 4100268100100 TC 268S PCB FR4 1 0T 1 633 5202010100039 Plug AXK6F10345J 10pin 1 CN400 TG4 634 3104081060080 Tantalum capacitor 1206 10UF M 10V 1 C200 B4B 635 3104081060080 Tantalum capacitor 1206 10UF M 10V 1 C23 B1B 636 3104081060080 Tantalum capacitor 1206 10UF M 10V 1 C304 B3A 637 3104081060080...

Страница 45: ...10Ω J 1 10 1 R3 B2D 22 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R334 T2F 23 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R412 T3B 24 3001061000000 Chip resistor 0603 10Ω J 1 10 1 R417 T4K 25 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R14 B3D 26 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R19 B2E 27 3001061010000 Chip resistor 0603 100Ω J 1 1 1 R218 B5E 28 3001061010000 Chip resistor 060...

Страница 46: ...stor 0603 100KΩ J 1 1 R221 B4E 69 3001061040010 Chip resistor 0603 100KΩ J 1 1 R223 B4E 70 3001061040010 Chip resistor 0603 100KΩ J 1 1 R228 B5E 71 3001061040010 Chip resistor 0603 100KΩ J 1 1 R229 B4F 72 3001061040010 Chip resistor 0603 100KΩ J 1 1 R230 B4E 73 3001061040010 Chip resistor 0603 100KΩ J 1 1 R231 B4G 74 3001061040010 Chip resistor 0603 100KΩ J 1 1 R236 B3E 75 3001061040010 Chip resis...

Страница 47: ...180KΩ J 1 1 R206 B4B 116 3001061840000 Chip resistor 0603 180KΩ J 1 1 R318 B4A 117 3001061850000 Chip resistor 0603 1 8MΩ J 1 1 R512 T3E 118 3001061850000 Chip resistor 0603 1 8MΩ J 1 1 R517 T3F 119 3001062200000 Chip resistor 0603 22Ω J 1 10 1 R109 B3F 120 3001062200000 Chip resistor 0603 22Ω J 1 10 1 R111 B3G 121 3001062200000 Chip resistor 0603 22Ω J 1 10 1 R28 B1F 122 3001062210000 Chip resist...

Страница 48: ...33KΩ J 1 1 1 R513 T2C 163 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R514 T3E 164 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R515 T3F 165 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R519 T3F 166 3001063330010 Chip resistor 0603 33KΩ J 1 1 1 R520 T3F 167 3001063340000 Chip resistor 0603 330KΩ J 1 1 R400 T2B 168 3001063340000 Chip resistor 0603 330KΩ J 1 1 R8 B3D 169 3001063910000 Chip resis...

Страница 49: ...or 0603 470KΩ D 1 1 R333 T1F 210 3001065610000 Chip resistor 0603 560Ω J 1 1 1 R5 B1C 211 3001065610000 Chip resistor 0603 560Ω J 1 1 1 R7 B1C 212 3001065620000 Chip resistor 0603 5 6KΩ D 1 1 R101 B2E 213 3001065620000 Chip resistor 0603 5 6KΩ D 1 1 R301 B3B 214 3001065620000 Chip resistor 0603 5 6KΩ D 1 1 R302 B3B 215 3001065620000 Chip resistor 0603 5 6KΩ D 1 1 R324 B1B 216 3001065620000 Chip re...

Страница 50: ...1 T3E 257 3003994730000 Thermistor 0603 47KΩ J 100 1 TH102 B3H 258 3005991020019 Resistor array 3 2 1 6 1 5 1KΩ 1 CP1 B1C 259 3101060100010 Chip capacitor 0603 1PF B 50V 1 C135 B4I 260 3101060100010 Chip capacitor 0603 1PF B 50V 1 C147 B5J 261 3101060100010 Chip capacitor 0603 1PF B 50V 1 C148 B4I 262 3101060100010 Chip capacitor 0603 1PF B 50V 1 C149 B4J 263 3101060100010 Chip capacitor 0603 1PF ...

Страница 51: ...apacitor 1 C9 B2D 305 3101061010010 Chip capacitor 0603 100PF J 50 1 C134 T1I 306 3101061010010 Chip capacitor 0603 100PF J 50 1 C138 B4I 307 3101061010010 Chip capacitor 0603 100PF J 50 1 C2 B1B 308 3101061010010 Chip capacitor 0603 100PF J 50 1 C3 B2B 309 3101061010010 Chip capacitor 0603 100PF J 50 1 C31 B2E 310 3101061010010 Chip capacitor 0603 100PF J 50 1 C6 B1C 311 3101061010010 Chip capaci...

Страница 52: ...3 0 1UF K 16 1 C156 B3F 351 3101061040010 Chip capacitor 0603 0 1UF K 16 1 C207 B4B 352 3101061040010 Chip capacitor 0603 0 1UF K 16 1 C209 B5B 353 3101061040010 Chip capacitor 0603 0 1UF K 16 1 C211 B5B 354 3101061040010 Chip capacitor 0603 0 1UF K 16 1 C213 B5B 355 3101061040010 Chip capacitor 0603 0 1UF K 16 1 C256 B5B 356 3101061040010 Chip capacitor 0603 0 1UF K 16 1 C258 B5D 357 310106104001...

Страница 53: ... T3F 397 3101063320000 Chip capacitor 0603 3300PF K 5 1 FC239 T3E 398 3101063330010 Chip capacitor 1 C318 B4B 399 3101063330010 Chip capacitor 1 C320 B1A 400 3101063330010 Chip capacitor 1 C321 B1A 401 3101063330010 Chip capacitor 1 C423 B2H 402 3101063330010 Chip capacitor 1 C503 T5C 403 3101063330010 Chip capacitor 1 C702 T4H 404 3101063900000 Chip capacitor 0603 39PF J 50V 1 Q107A B3H 405 31010...

Страница 54: ...3 470PF K 50 1 C403 T2B 445 3101064710000 Chip capacitor 0603 470PF K 50 1 C404 T2B 446 3101064710000 Chip capacitor 0603 470PF K 50 1 C406 B2K 447 3101064710000 Chip capacitor 0603 470PF K 50 1 C410 T4A 448 3101064710000 Chip capacitor 0603 470PF K 50 1 C411 T2A 449 3101064710000 Chip capacitor 0603 470PF K 50 1 C414 T5B 450 3101064710000 Chip capacitor 0603 470PF K 50 1 C416 T5A 451 310106471000...

Страница 55: ...1 45 6 1 TC203 B4G 493 3102992000049 Trimmer capacitor 3 2 2 5 1 25mm 1 TC2 B1G 494 3104071560020 Tantalum capacitor 0805 15UF M 6 3V 1 C331 T1E 495 3104071560020 Tantalum capacitor 0805 15UF M 6 3V 1 C332 T2F 496 3104071560020 Tantalum capacitor 0805 15UF M 6 3V 1 C399 T2E 497 3104072250000 Tantalum capacitor 0805 2 2UF M 4V 1 C507 T3E 498 3104072250000 Tantalum capacitor 0805 2 2UF M 4V 1 C523 T...

Страница 56: ...537 3216006221009 Inductor 0603 220nH SGMI16 1 L402 T3D 538 3216006221009 Inductor 0603 220nH SGMI16 1 L403 T3B 539 3216006561009 Inductor 0603 560nH SGMI16 1 L5 B3D 540 3221506601009 Chip ferrite bead 0603 600Ω 25 1 L1 B2D 541 3221506601009 Chip ferrite bead 0603 600Ω 25 1 L10 B1E 542 3221506601009 Chip ferrite bead 0603 600Ω 25 1 L103 B3F 543 3221506601009 Chip ferrite bead 0603 600Ω 25 1 L19 B2...

Страница 57: ...5L 1 Q100 B2E 586 3401002000099 Transistor 2SC5108 Y TE85L 1 Q101 B3F 587 3401002000099 Transistor 2SC5108 Y TE85L 1 Q2 B2D 588 3401002000099 Transistor 2SC5108 Y TE85L 1 Q6 B2F 589 3403007000009 Transistor DTA114EE TL PNP 1 Q200 B5B 590 3403007000029 Transistor DTA114YE TL PNP 1 Q402 T4B 591 3403007000049 Transistor DTA123JE PNP Roh 1 Q408 B2J 592 3403007000069 Transistor DTA143ZE PNP Roh 1 Q504 ...

Страница 58: ...79 Operational amplifier NJM2904V dual J 1 IC100 T2I 634 3605008005079 Operational amplifier NJM2904V dual J 1 IC301 B4A 635 3608015000000 Power management IC regulator XC6201P5 1 IC404 T5A 636 3609004005179 Reset IC PST9140NR MITSU 1 IC400 T2B 637 3612031004409 Memory AT24C08AN 10SI 2 1 IC401 T5B 638 3619006005210 Low voltage detector IC R3111N451C 0 1 IC402 T2B 639 3701012850019 TCXO 12 8MHz NSA...

Страница 59: ...itializing the channel and other data Please refer to the outcome of initialization at TC 268 TC 368 software description 2 Adjustment The adjustment of TC 268 368 some are conducted in normal mode some are in manual program mode Turn on the power and enter the normal mode at the same time press the PTT and MONI to turn on the transceiver enter the manual program mode 3seconds later refer to TC 26...

Страница 60: ... undee 1 CH RX center Turn to channel 13 in manual mode Dev Wide 2 CH RX center Turn to channel 14 in manual mode Dev Wide 5 Sensitivity Wide 3 CH RX center Turn to channel 15 in manual mode Dev Wide Synthetical test SSG output 118dBm MOD 1kHz DEV 3kHz FILER 0 3 3 4kHz ANT SP check SINAD 12dB or higher 1 CH RX center Turn to channel 13 in manual mode Dev narrow 2 CH RX center Turn to channel 14 in...

Страница 61: ...it to 4 2kHz 100Hz Wide 10 MAX DEV 2 CH TX center turn to channel 13 in manual mode dev narrow Press PTT Synthetical test LPF 15kHz AF 1kHz 120mV ANT MIC Check 1 8kHz 2 2kHz Narrow 1 CH TX center turn to channel 13 in manual mode dev wide Press PTT VR501 Check 2 2kHz 3 6kHz Wide 11 MIC SENS 2 CH TX center turn to channel 13 in manual mode dev narrow Press PTT Synthetical test FILER 0 3 3 4kHz AF 1...

Страница 62: ...nel 12 in manual mode Adjust it to 0 35kHz 50Hz Narrow 15 Low Battery level Turn to channel 3 in manual mode Adjust the battery to 5 8V Digital voltmeter PTT up MONI down Adjust so that the LED flashes Note In manual mode channel selector 1 12 MIC can t connect line after adjust complete short SELF enter mode setting press PTT disable manual adjust ...

Страница 63: ...ottom of the case assembly lift the chassis and remove it from the front cover 4 Taking care not to cut the speaker lead separate the chassis and the front cover assembly Removing the lever Raise the lever on the lower case insert a small flat screwdriver into the space between the case and lever open the case carefully and lift the lever off Note Do not force to separate the case from the lever ...

Страница 64: ...TC 268 368 Service Manual 62 Exploded View ...

Страница 65: ...7000030000010 Battery lock spring 12 6201060000000 Battery lock baffle 13 6000112100010 Battery latch 14 6100077000000 Speaker washer 15 5001010000020 Speaker 16 6100075000000 MIC washer 17 6100086000000 Water proof ring aluminum chassis 18 6201090000000 Anode connector battery 19 6100089000000 Water proof packing SP MIC jack 20 6000165000010 Holder anode connector 21 6300018000030 Aluminum chassi...

Страница 66: ...7000030000010 Battery lock spring 12 6201060000000 Battery lock baffle 13 6000112100010 Battery latch 14 6100077000000 Speaker washer 15 5001010000020 Speaker 16 6100075000000 MIC washer 17 6100086000000 Water proof ring aluminum chassis 18 6201090000000 Anode connector battery 19 6100089000000 Water proof packing SP MIC jack 20 6000165000010 Holder anode connector 21 6300018000030 Aluminum chassi...

Страница 67: ...TC 268 368 Service Manual 65 Packing Owner s Manual Strap ...

Страница 68: ...PDF created with pdfFactory trial version www pdffactory com ...

Страница 69: ...PDF created with pdfFactory trial version www pdffactory com ...

Страница 70: ...PDF created with pdfFactory trial version www pdffactory com ...

Страница 71: ...PDF created with pdfFactory trial version www pdffactory com ...

Страница 72: ...x Section Measure the audio frequency on an AFVTVM and radio frequency on a RF VTVM at high impedance Set the MIC input to obtain a modulation factor of 60 with the transmit frequency at center and a modulation frequency of 1kHz VR501 IC500 MIC Q4 Q6 Q100 Q101 Q102 AFVTVM RFVTVM Q105 C108 C106 C100 C40 D5 ANT 4 5W 12mVrms 390mVrms 120mVrms 0 16Vrms 0 44Vrms 0 8Vrms ANT L112 C145 R224 5R L203 L214 ...

Страница 73: ...n Measure the audio frequency on an AFVTVM and radio frequency on a RF VTVM at high impedance Set the MIC input to obtain a modulation factor of 60 with the transmit frequency at center and a modulation frequency of 1kHz ANT L112 C145 R224 5R L203 L214 1st Local 0 1Vrms IC200 C212 Q201 R210 SP Q307 IC302 VR IC300 116 5dBm 113dBm 98dBm 103dBm 104dBm 106 5dBm 103dBm 1018mVrms 175mVrms 23 5mVrms 0 63...

Страница 74: ... IC100 NJM2904 Q109 DTA 144EE Q106 2SK1824 Q108 DTC 114EE Q104 Q103 FMMT717 2SK1824 PABC APC 5T 5T Q107 DTC 114TE THERMAL PROTECTION B D102 D103 MA2S077 ANT SW BPF L208 L209 L210 D205 D203 D204 Q203 3SK318 5R AMP TUNE TUNE L203 L204 L214 D201 BPF BATT 2SC4988 LO SW DEV RIPPLE FILTER Q8 D6 2SC5343 MA2S111 5C T R SW Q5 Q7 2SJ243 UMC4 RX Q3 2SK1875 NV RX VCO D1 D3 1SV283 2 F CONT LOOP FILTER TCXO 3C ...

Страница 75: ... NJM2904 Q109 DTA 114EE Q106 2SK1824 Q108 DTC 114EE Q104 Q103 FMMT717 2SK1824 PABC APC 5T 5T Q110 DTC 114TE THERMAL PROTECTION B D102 D103 HSC277 2 ANT SW BPF L208 L209 L210 L211 D201 D202 Q203 3SK318 5R AMP TUNE TUNE L203 L204 L214 D203 BPF BATT 2SC5108 LO SW DEV RIPPLE FILTER Q8 D6 2SC4617 MA2S111 5C T R SW Q5 Q7 2SJ243 UMC4 RX Q3 2SK508 NV RX VCO D1 D3 MA2S376 2 F CONT LOOP FILTER TCXO 3C 12 8M...

Страница 76: ...02 47 0 1000P 2SK1824 0 1u 1k 470p 0 1u C217 C307 33 R235 C251 C225 10k 10 10u 6 3 Q107 DTC114TE 470p 3 3k 3 3k R308 470k 0 1u 4700p 1u C201 L204 0 75U L214 L203 TP2 1u L118 L114 1000p R128 R123 L112 MA77 R127 C133 C128 L108 L113 C126 C143 C120 C123 C125 C119 R121 0 1u R117 C116 R115 20p L104 C114 C111 R116 R114 R118 C109 R112 L101 R110 C107 R109 R108 R107 C104 R106 R105 C103 L100 R103 C102 C101 R...

Страница 77: ... L207 TP2 L118 1u L112 C145 R154 R147 L109 D101 R139 C143 C136 R123 L106 L110 C130 C135 C125 C128 C131 C123 R126 C113 R128 C119 R118 C118 L104 C120 C116 R121 R117 R120 C114 R115 C111 L102 R113 C110 R111 C109 R110 R112 C108 L101 R108 C107 R109 C106 R106 R213 R105 C105 L100 R103 C103 C101 R102 R101 R100 L18 R104 C53 C100 C149 D100 C102 C104 D200 C156 C157 R152 C165 R153 C121 C126 C129 C144 D102 D103...

Страница 78: ...ensitivity 12 3mV Modulation distortion 5 Modulation limiting 5kHz 2 5kHz Bandwidth 16 kHz 8kHz Modulation specialty From 6 dB oct emphasis 3dB Spurious emission 7 5μW Adjacent channel power 65 d B 55dB Receiver Reference sensitivity Better than 0 28μV 0 35μV Squelch open sensitivity 0 4μV Audio power output 500mW Audio distortion 7 Operating bandwidth 7 kHz 3 5 kHz Audio response From 6 dB oct De...

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