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Created by: 

Approved by: 

Rev.No: 

For Stage: 

Release Date: 

Page:     33   Of  57    

 

 

Model No:      3420 

Drawing No: 

Customer : 

Model No:      

H 520 PLUS 

Rev.  Date: 

 
 

9. Frequencies for RU band (Russia 400CH AM / FM 4W) 
 

CH 

Freq. 

CH 

Freq. 

CH 

Freq. 

CH 

Freq. 

CH 

Freq. 

1 25.615 81 26.515 161 

27.415 241 28.315 321 29.215 

2 25.625 82 26.525 162 

27.425 

242

 

28.325 322  29.225 

3 25.635 83 26.535 163 

27.435 

243

 

28.335 

323

 

29.235 

4 25.655 84 26.555 164 

27.455 

244

 

28.355 

324

 

29.255 

25.665 

85 

26.565 

165 

27.465 

245

 

28.365 

325

 

29.265 

6 25.675 86 26.575 166 

27.475 

246

 

28.375 

326

 

29.275 

7 25.685 87 26.585 167 

27.485 

247

 

28.385 

327

 

29.285 

8 25.705 88 26.605 168 

27.505 

248

 

28.405 

328

 

29.305 

9 25.715 89 26.615 169 

27.515 

249

 

28.415 

329

 

29.315 

10 

25.725 

90 

26.625 

170 

27.525 

250 

28.425 

330 

29.325 

11 25.735  91  26.635  171 

27.535 251 28.435 331

 

29.335 

12 25.755  92  26.655  172 

27.555 

252

 

28.455 

332

 

29.355 

13 25.765  93  26.665  173 

27.565 

253

 

28.465 

333

 

29.365 

14 25.775  94  26.675  174 

27.575 

254

 

28.475 

334

 

29.375 

15 

25.785 

95 

26.685 

175 

27.585 

255

 

28.485 

335

 

29.385 

16 25.805  96  26.705  176 

27.605 

256

 

28.505 

336

 

29.405 

17 25.815  97  26.715  177 

27.615 

257

 

28.515 

337

 

29.415 

18 25.825  98  26.725  178 

27.625 

258

 

28.525 

338

 

29.425 

19 25.835  99  26.735  179 

27.635 

259

 

28.535 

339

 

29.435 

20 

25.855 

100  26.755 

180 

27.655 

260 

28.555 

340 

29.455 

21 25.865  101 26.765  181 

27.665 

261

 

28.565 

341

 

29.465 

22 25.875  102 26.775  182 

27.675 

262

 

28.575 

342

 

29.475 

23 25.905  103 26.805  183 

27.705 

263

 

28.605 

343

 

29.505 

24 25.885  104 26.785  184 

27.685 

264

 

28.585 

344

 

29.485 

25 

25.895 

105  26.795 

185 

27.695 

265

 

28.595 

345

 

29.495 

26 25.915  106 26.815  186 

27.715 

266

 

28.615 

346

 

29.515 

27 25.925  107 26.825  187 

27.725 

267

 

28.625 

347

 

29.525 

28 25.935  108 26.835  188 

27.735 

268

 

28.635 

348

 

29.535 

29 25.945  109 26.845  189 

27.745 

269

 

28.645 

349

 

29.545 

30 

25.955 

110  26.855 

190 

27.755 

270 

28.655 

350 

29.555 

 
 
 
 
 
 
 

Содержание H-520 PLUS

Страница 1: ...Created by Approved by Rev No For Stage Release Date Page 1 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date H 520 PLUS Service Manual...

Страница 2: ...LUS Rev Date Table of Contents Page Specifications 3 Test and Alignment Procedure 8 Block Diagram 13 Schematic Diagram 14 Printed Circuit Board 23 Channel Frequency Charts 25 Parts List 40 Semiconduct...

Страница 3: ...mm Weight 0 50 kg 2 RECEIVER Receiving System Dual Conversion Super Heterodyne Intermediate Frequency 1st IF 10 695 MHz 2nd IF 455 MHZ Sensitivity 0 5 V for 20 db SINAD in FM mode Audio Distortion Le...

Страница 4: ...t a channel where no signal are present or wait until signals cease on your channel Then rotate the squelch control knob clockwise to a point where the background noise disappears Note When the squelc...

Страница 5: ...or This network also serves to match the impedance between TX power AMP Q204 and the antenna C Circuit for Limiting Power After finished all alignment the constant voltage supply circuit limits the av...

Страница 6: ...type with the first IF 10 695 MHz and second IF 455 KHz Receiver is separated two blocks 1st IF section and 2nd IF section The PLL synthesizer supplies first local frequency 16 270 16 710 MHz for EU...

Страница 7: ...Q601 other components Repair or replace Replace Replace Replace the defective components No noise on speaker Measure all the voltage of IC601 102 with voltage chart Defective squelch circuit component...

Страница 8: ...ep Setting Connection Adjuster Adjust for 1 Frequency adjustment MIC Receive Volume optional Squelch optional CH selector 19 Frequency counter to dummy load Figure 1 X302 27 185MHz 300Hz 2 VCO Voltage...

Страница 9: ...Second harmonic check MIC Transmit Volume optional Squelch optional CH selector 19 Connect RF power meter With dummy load to spectrum analyzer through coupler 40 dB Attenuator to EXT ANT jack on the s...

Страница 10: ...Created by Approved by Rev No For Stage Release Date Page 10 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date Figure 3 Figure 4...

Страница 11: ...with 8 ohm dummy load Figure 7 T102 T103 Maximum indication on SSVM Reduce output from RFSG until the audio output becomes about 600mV 2 Squelch adjustment MIC Receive Volume 600mV Squelch Clockwise...

Страница 12: ...Created by Approved by Rev No For Stage Release Date Page 12 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date Figure 5 Figure 6 Figure 7...

Страница 13: ...Created by Approved by Rev No For Stage Release Date Page 13 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date...

Страница 14: ...Created by Approved by Rev No For Stage Release Date Page 14 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date...

Страница 15: ...Created by Approved by Rev No For Stage Release Date Page 15 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date...

Страница 16: ...ing transmit The VCO of the PLL operates 13 4825 MHz CH 1 to 13 7025 MHz CH 40 for EU 13 800625 MHz CH 1 to 13 995625 MHz CH 40 for UK the VCO frequency goes to the double circuit Q201 T203 T204 which...

Страница 17: ...ough an active low pass filter and using the output to control the VCO frequency through varicap diode D301 Under locked conditions both of phase detector input signal must be indential at 2 5 KHz The...

Страница 18: ...ng signals Double output Frequency Transmit _______ Transmit _______ CH 1 13 4825 MHz CH 1 13 800625 MHz CH 40 13 7025 MHz CH 40 13 995625 MHz 26 965 MHz 27 60125 MHz 27 405 MHz 27 99125 MHz Since all...

Страница 19: ...16 43 5425 13 5626 15 27 135 6528 16 44 5427 13 5675 16 27 155 6532 16 46 5431 13 5775 17 27 165 6536 16 47 5433 13 5825 18 27 175 6544 16 48 5435 13 5875 19 27 185 6548 16 49 5437 13 5925 20 27 205 6...

Страница 20: ...25 6822 5 17 05625 5550 25 13 875625 17 27 76125 6826 5 17 06625 5552 25 13 880625 18 27 77125 6830 5 17 07625 5554 25 13 885625 19 27 78125 6834 5 17 08625 5556 25 13 890625 20 27 79125 6838 5 17 096...

Страница 21: ...scillator with internal amplifier C VCO Q301 and surrounding parts are consisting a clapp oscillator works as a VCO of IC302 the VCO can be oscillate over the required of 13 4825 MHz to 17 29625 MHz D...

Страница 22: ...quadrature detector AM signals are recovered with envelope detector 4 FREQUENCY STABILITY LET Fo Crystal oscillator frequency Fr Phase detector reference frequency Fvco VCO frequency Ft Transmit frequ...

Страница 23: ...Created by Approved by Rev No For Stage Release Date Page 23 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date Printed Circuit Board...

Страница 24: ...Created by Approved by Rev No For Stage Release Date Page 24 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date...

Страница 25: ...5 AM FM 4 27 005 AM FM 24 27 235 AM FM 5 27 015 AM FM 25 27 245 AM FM 6 27 025 AM FM 26 27 265 AM FM 7 27 035 AM FM 27 27 275 AM FM 8 27 055 AM FM 28 27 285 AM FM 9 27 065 AM FM 29 27 295 AM FM 10 27...

Страница 26: ...985 AM FM 21 27 215 AM FM 4 27 005 AM FM 22 27 225 AM FM 5 27 015 AM FM 23 27 255 AM FM 6 27 025 AM FM 24 27 245 AM FM 7 27 035 AM FM 25 27 265 AM FM 8 27 055 AM FM 26 26 875 AM FM 9 27 065 AM FM 27 2...

Страница 27: ...M FM 52 26 675 FM 13 27 115 AM FM 53 26 685 FM 14 27 125 AM FM 54 26 695 FM 15 27 135 AM FM 55 26 705 FM 16 27 155 FM 56 26 715 FM 17 27 165 FM 57 26 725 FM 18 27 175 FM 58 26 735 FM 19 27 185 FM 59 2...

Страница 28: ...26 985 FM 23 27 255 FM 4 27 005 AM FM 24 27 235 FM 5 27 015 AM FM 25 27 245 FM 6 27 025 AM FM 26 27 265 FM 7 27 035 AM FM 27 27 275 FM 8 27 055 AM FM 28 27 285 FM 9 27 065 AM FM 29 27 295 FM 10 27 075...

Страница 29: ...27 005 AM FM 24 27 235 AM FM 5 27 015 AM FM 25 27 245 AM FM 6 27 025 AM FM 26 27 265 AM FM 7 27 035 AM FM 27 27 275 AM FM 8 27 055 AM FM 28 27 285 AM FM 9 27 065 AM FM 29 27 295 AM FM 10 27 075 AM FM...

Страница 30: ...7 225 FM 3 26 985 FM 23 27 255 FM 4 27 005 FM 24 27 235 FM 5 27 015 FM 25 27 245 FM 6 27 025 FM 26 27 265 FM 7 27 035 FM 27 27 275 FM 8 27 055 FM 28 27 285 FM 9 27 065 FM 29 27 295 FM 10 27 075 FM 30...

Страница 31: ...7 105 FM 13 27 72125 FM 13 27 115 FM 14 27 73125 FM 14 27 125 FM 15 27 74125 FM 15 27 135 FM 16 27 75125 FM 16 27 155 FM 17 27 76125 FM 17 27 165 FM 18 27 77125 FM 18 27 175 FM 19 27 78125 FM 19 27 18...

Страница 32: ...AM FM 4 27 000 AM FM 24 27 230 AM FM 5 27 010 AM FM 25 27 240 AM FM 6 27 020 AM FM 26 27 260 AM FM 7 27 030 AM FM 27 27 270 AM FM 8 27 050 AM FM 28 27 280 AM FM 9 27 060 AM FM 29 27 290 AM FM 10 27 07...

Страница 33: ...26 655 172 27 555 252 28 455 332 29 355 13 25 765 93 26 665 173 27 565 253 28 465 333 29 365 14 25 775 94 26 675 174 27 575 254 28 475 334 29 375 15 25 785 95 26 685 175 27 585 255 28 485 335 29 385 1...

Страница 34: ...282 28 775 362 29 675 43 26 085 123 26 985 203 27 885 283 28 785 363 29 685 44 26 105 124 27 005 204 27 905 284 28 805 364 29 705 45 26 115 125 27 015 205 27 915 285 28 815 365 29 715 46 26 125 126 2...

Страница 35: ...307 29 075 387 29 975 68 26 385 148 27 285 228 28 185 308 29 085 388 29 985 69 26 395 149 27 295 229 28 195 309 28 095 389 29 995 70 26 405 150 27 305 230 28 205 310 29 105 390 30 005 71 26 415 151 2...

Страница 36: ...12 25 750 92 26 650 172 27 550 252 28 450 332 29 350 13 25 760 93 26 660 173 27 560 253 28 460 333 29 360 14 25 770 94 26 670 174 27 570 254 28 470 334 29 370 15 25 780 95 26 680 175 27 580 255 28 480...

Страница 37: ...282 28 770 362 29 670 43 26 080 123 26 980 203 27 880 283 28 780 363 29 680 44 26 100 124 27 000 204 27 900 284 28 800 364 29 700 45 26 110 125 27 010 205 27 910 285 28 810 365 29 710 46 26 120 126 2...

Страница 38: ...307 29 070 387 29 970 68 26 380 148 27 280 228 28 180 308 29 080 388 29 980 69 26 390 149 27 290 229 28 190 309 28 090 389 29 990 70 26 400 150 27 300 230 28 200 310 29 100 390 30 000 71 26 410 151 2...

Страница 39: ...26 145 AM FM 32 28 395 AM FM 8 26 195 AM FM 33 28 445 AM FM 9 26 245 AM FM 34 28 495 AM FM 10 26 295 AM FM 35 28 545 AM FM 11 26 545 AM FM 36 28 795 AM FM 12 26 595 AM FM 37 28 845 AM FM 13 26 645 AM...

Страница 40: ...7994AB 411994B PCB SUB 14X20X1 2T 1 SMD 501 400019AB 53420MPA MAIN PCB AUTO ASSY H 520 PLUS 1 911 600007BG 05B0005Z RES CHIP 0 1 16W 5 1608 1 SMD L612 911 622037BG 05B2218Z RES CHIP 220 1 16W 5 T 1608...

Страница 41: ...8 2K 1 16W 5 1005 6 SMD R709 211 11 212 1 209 911 691057BF 05D9130Z RES CHIP 91K 1 16W 5 1005 2 SMD R3 503 911 590002AA 0671045Y RES SEMIFIXED 100K TMC3KJB100K 3DIA 2 SMD RV102 201 917 990003AA 075103...

Страница 42: ...1HG 1339429Y CAP CERAMIC CHIP 39PF GRM36COG390J50V 2 SMD C302 127 913 424000HB 1340121Y CAP CERAMIC CHIP 4PF GRM39COG040C50V 1 SMD C224 913 414000HBAA 1340187Y CAP CERAMIC CHIP 4PF GRM36COG040C50V 1 S...

Страница 43: ...IC802 874 178569AL 2218858 IC OTP EM78P569ALQJ 1 SMD IC801 875 100386SP 2310381 IC LM386MX 1 SO 08 1 SMD IC601 882 590251SA 2420246 DIODE KDV251S 2 SMD D302 301 882 190226AA 2430494 DIODE SWITCHING KD...

Страница 44: ...140006AA SOCKET 6P HEADER SMD 1 SUB 925 730003AA 4208062U JACK STEREO EARPHONE EJS 4 4035S 1 SUB JACK1 925 730004AA 4208073V JACK STEREO EARPHONE EJS 4 4125S 1 SUB JACK2 925 990090AA WAFER 2 0MM 2P 1...

Страница 45: ...2 B 5 25 5 29 B 4 76 4 63 Q502 E 7 85 8 22 Q703 E 0 05 0 KTA1504 C 2 29 2 96 KRC104 C 0 06 0 B 7 29 7 71 B 4 71 4 66 Q506 E 5 06 4 98 Q702 E 0 04 0 KTA1504 C 4 95 0 15 KRC104 C 0 44 1 65 B 4 28 4 9 B...

Страница 46: ...09 E 2 29 2 95 Q102 G 0 04 0 KTC3875 C 7 37 7 73 KTK211 D 0 02 3 39 B 2 77 3 2 S 0 02 0 86 Q510 E 0 04 0 Q103 G 0 04 0 KTC3875 C 0 04 0 KTK211 D 0 02 3 4 B 0 71 0 67 S 0 02 0 87 Q505 E 0 04 4 2 Q501 E...

Страница 47: ...DS114 K 0 04 3 4 D701 A1 2 0 04 0 06 0 00 0 02 D103 A 0 05 4 1 KDS226 K 0 05 0 01 KDS114 K 0 04 3 39 D801 A1 2 0 12 4 25 DIV 0 D107 A1 2 0 00 0 11 1 20 0 11 KDS226 K 4 75 0 KDS184 K 0 84 0 63 D802 A1...

Страница 48: ...63 7 0 00 0 00 57 4 65 4 63 8 0 00 0 00 58 4 65 4 63 9 0 00 0 00 59 4 65 4 63 10 2 77 2 72 60 0 04 0 00 11 2 75 2 72 61 0 04 0 00 12 2 75 2 72 62 4 76 4 74 13 2 75 2 72 63 0 04 0 00 14 2 75 2 72 64 0...

Страница 49: ...72 32 0 04 0 00 82 2 75 2 72 33 0 04 0 00 83 2 75 2 72 34 4 69 4 66 84 2 77 2 74 35 0 04 0 00 85 2 75 2 72 36 0 06 0 02 86 2 77 2 74 37 0 84 0 83 87 2 76 2 74 38 0 68 0 87 88 2 75 2 72 39 4 75 4 72 8...

Страница 50: ...2 1 37 1 33 9 2 39 2 34 3 0 50 0 79 10 2 39 2 34 4 2 40 2 34 11 2 39 2 34 5 2 40 2 34 12 0 61 0 53 6 3 08 3 03 13 1 38 1 33 IC901 DBL5020 7 0 05 0 00 14 4 71 4 65 1 0 05 0 00 5 0 11 0 06 2 0 05 0 00...

Страница 51: ...2 BU2630 8 0 05 0 01 16 2 14 2 09 1 0 05 3 88 13 0 34 1 50 2 0 05 3 36 14 0 05 2 92 3 0 04 2 57 15 0 04 1 16 4 0 06 3 93 16 0 04 0 00 5 0 02 1 82 17 0 04 1 59 6 0 00 1 17 18 0 34 1 50 7 0 00 2 96 19 0...

Страница 52: ...Rev No For Stage Release Date Page 52 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date IC Ref PIN TX RX 1 0 05 0 00 2 5 03 4 98 IC501 LD1117 3 8 43 8 63 1 5 03 4 98 2 0 04 0 00 IC8...

Страница 53: ...No For Stage Release Date Page 53 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date SEMICONDUCTOR LEAD IDENTIFICATION AND IC INTERNAL CONNECTIONS DIODES 1N4004 1N4148 1N5232 1N5404...

Страница 54: ...Date Page 54 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date TRANSISTORS FET KTK211 KRC101S KRC110 KTC3876 KTC3880 KTC3875 3880 KRC101 104 Q204 2SK3476 IC501 LD111750 Q203 2SK307...

Страница 55: ...e Release Date Page 55 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date INTERATED CIRCUITS IC801 EM78P569 IC 302 BU2630F IC102 4 KIA324 IC901 DBL5020 IC902 14066 IC101 TK10931 IC80...

Страница 56: ...Created by Approved by Rev No For Stage Release Date Page 56 Of 57 Model No 3420 Drawing No Customer Model No H 520 PLUS Rev Date Explode view drawing...

Страница 57: ...1274AA 896485 KEYPAD SILICONE RUBBER 1 20 833 501216AA 906706 FELT 32 5XT 0 3 1 21 833 501280AA TAPE WINDOW 3M T0 16 1 22 925 990002ZA 4210368A CONNECTOR PLUG UG 1094 U W 1 CON4 23 837 501055AA 651169...

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