Standard C-528 service manual
Contents
1. 901 gas n 5 CeIn an CONE v T iL ee n A Tm arj F n ia ra T ry a ov aow 1 nT E i TOHE Cy T 1 1 a r B2 2 ji 12 Du 12 Fi i9 7 8 011 y 15 T L ERN a ESL M HOTES 1 i REFER PARTS LIST COMPONENT VELUES a UNLESS OTHERWISE MOTEO VALUES ARE IM MS AND CAPACITOR VALUED ARE IW uicR FARALDT HD CAPACITORS RESISTORS ARE ALL THIF PARTS a RF D LPF AMT Sw RF MIX CRYSTAL lat 6425 9427 0412 READS 2414 i EEEF 1724 25K3021Y1 er 8M ANTENNA j p CONNECTOR a 5 iv TX DET _ LFF TX POWER AMP YOUNGER gazs 425 1592390 _ AMT SW RF AMP RF HPF ist MIX CRYSTAL2. tx Oum purrpwm Darri E 74 14 SFE FST STINE Tx POSER L m 1 Dali wA TTd TAA FEF e EE eA E Laire r 385 i TET cres a cm mm Fe AHT xA APPARE JACK JUI arg Aum LT 2 cx pe H T 43 E D T i ez m m i E Tab th TEE 5c ao I abi uF amb 2 Paar zn 2n Nt 4 33 EZ LIS 4 1 8 43 wr 5 ir 2 a P i H mm 27 2 AELH EXT uer EEF E T cS uu mm 10 E EN CETE am A m m i nde fol RO biT arb pit i 1 A Xr ss Lus H 4 n od IU iw rure nar had Pep mha iiis Fm i Fh i 4 T
3. ee ee ee e Xl re rendus ees bono rere 43 4 Audio Circuit E EROR 13159 Squsich a 4 3 6 Signal Meter Circuit cist Par TS Transmifferzz EE E w 441 Microphone Amplifier and Modulation me metet N rr 442 Power Amplifier IUE aoe LM T ee 443 A P C Auto Power Control Circuit pn 4 5 Conirol SECON ees A T TE 4 6 Built in Touch Tone Board un EDI a a a 4 5 2 ENCODER i SNNT IGNEUS ESSA ULT E ES RENI E ORE ERE RS AE 47 Tone Squelch Board CTNS20 SR RE E IIT Decola A EELS EZ EED e eee eee a 48 Terminal description Moi 18 rame E toss G 48 2 Built in Touch Tone Board Emi m MN PP 4 8 3 Tone Squelch Board CTN520 Nw EM wan M M oM n TN ERI 5 BLOCK DIAGRAM
4. 1 22 1 ee 2 d p E gt ie WIE Downloaded by m d 1 Amateur Radio Directory 1 ap D www hamdirectory info i Lo Au c MERECE d 5 FER LIAT VELI aee i URLS Meteo p ae s un PR ap iE Uy LEFACITDE AME VE oma ci Tae WALUE E ines ARD AS FOLLOW u at 4 A p i mi Puwrb E E j TH Lowe MEEEUME VHF IHF tg BHO ARSE ALL CHIP PAETE
5. TG KHMDS1OIGI WHOSATIEIG NHOS5562610 5223 10 RHIAN 105222114 NHOSDODGLIJ 472410 NHOSDUDAIU RAOS22 2610 DESCRIPTION OK i1710H 22 EOWA 1 16W 22 1 16W 22 1 168 22 KOIN 11164 47 1 168 470 t 164 47 KOIN 17168 470 1164 1 1648 470 1 16 9 OWN OWN 22 KOWH l 16U 47 tf tau OWN 10 KONR Lf tou 47 Lf teu 10 HOMH LFI 100 KOIN 1 1698 5 100 OHH flow 553 100 Lf liu 55X YARIABLE RESISTOR 50 VARIABLE RESISTOR 50 KOILH VARTABLE RESISTOR 500 EDINA 109 KOLA 1 168 amp 5 10 XOHH 4 51 lH bere lf ith AT LALE O O88 if tow AT 1 16V OnM 1 1654 4 7 1716 47 1 168 4 7 HOEK TEEN 4 7 K HH 17169 100 1 168 47 FOUR DORUK 1 1694 4 7 KOHH 17169 T 47 1 168 10 FOUR 1 1 00 1 168 51 5 6 EDIK 1 1698 22 1 168 5 OIM 1 168 2 2 XDIM 1 100 1 168 100 OEH 1 i6M LFI 0 OHH L LGU 2 8 ROLA If GW 35 OUT 1 1698 51 1 168 54 AT 4 7 AGER LY The 4 53 t 51 5 7 64 o 54 5 t 51 amp 51
6. apk Er 1 fet aren 1 iat aqu mat mH gr gt 2 i a p make 1 1 anii oes bow Bax fin f z 1 1 i n eas i i LI Qi LII 4 1 Japan ZEN Im kT i E TIT H 1 n 1 d ep Pa UH uu T ETE 1 p L B Ni Nc i T n l 7 i LL 1 RSE d al napi PRCETAAIY Bpr ma 1 Fiu 4 zt sit T T Vue Tor i E res a gh 1 Ad UL bat 3 bia n ME je Bet S lt 1 YEO 5 aL 4 ci agas i i Hl
7. 54 HHO 5105610 1 HOIN 1 160 4 55 5 5393610 39 1 l 5 5 244 HND5322610 3 2 KOIN 1 169 5 R357 22 1 16 mu R358 05272610 2 7 Lf dew 4 54 R296 NK053325110 1 3 1 AIEN k 57 NH 0547 zr T 287 HKOSIO0IGIO IIEU 54 6344 ap CUM CM PHS TORRES 100 PONA t 57 amp 351 KN05474610 470 1 16U 4 54 214 026 19 I IF IGE 51 054726510 4 7 11E 4 55 R391 KN05472610 4 7 tftew 5 R353 VARIABLE RESISTOR LO KNOS393510 39 1 164 4 51 RIES 89505223610 22 1 57 NHO529826510 39 1 168 54 330 17 16 s 54 150 1764 4 54 RIGE HROS2Z29510 22 KOIR 1 16U 55 MK05474610 470 KOEHN 1 159 4 55 5104510 100 KOIN 1 168 4 5t KNo50006GID 0 OHH 1 164 K305272510 2 7 1 ew 57 05472610 4 T 1 16W 54 3405472610 47 5 KHOS3234610 WHOS 154616 20 1716 4 54 1 1 1 1 1 1 1 1 1 l 1 MNOSS92610 3 3
8. 1 1 1 l 1 1 l E R37 NNUSBIOJEIO 10 KOM 1 16W 4 54 8372 NNOSIOA4GJQ 100 2 R373 KNo3223610 22 KOEN 1 I65M 4 54 474610 470 KOIN 164 4 5 EJI WHOS 4S T2610 4 7 EOIN 1 164 4 51 E374 HNOSIOLGILO 109 OM 1 164 54 E113 5151614 i50 OIM 1 158 4 55 375 NNOSJJIEIA 320 Ol 1 168 51 8314 NK05103612 10 KONN 1 16 3 5 RATE NK0S02261R 2 2 L I160 4 55 HAT NHOS323610 23 KOBH teu 5Y NHN0547451 10 470 1 16W 4 54 R316 KFH051036510 10 L IGV 51 KH05222610 2 2 2 1 1694 5 E317 BHOS474610 470 1 169 5 2379 NKN05473610 1 16V Murus it EORR 380 8805473510 47 KOIN 1 188 5 05103010 1 1 168 4 54 3333610 33 1 164 5 FHO51036510 10 4 51 6 33 1 16 4 54 054726810 47 1 16M 4 54 05272510 27 KOIN If lew 5 218 8383 9384 Baas 525 MKOSIOZG10 1 KOIN flew 5Y MHOSIS4G1O 150 5 NNo5154610 150 KOIN H405222610 2 2 I1 16
9. AIL 95HO0 ALOS nios OHO 438 SHO 05 SHO 940 GR XX ouo ANGL 940 1 01 ALG AGO S Azog MIB FF AEO G o Bl 0 2 AD AG AG OD ATO O ALGO ALB 5 Alg 3 Ra ALG G wie wwe alog s S8v z APO s ATEZ mum a AOQ g APO s 440 JHN anol 051 8651 Md J9VLIOA 2080 731080 CONTROL eee Fer du L113 ior Lp SPEAKER WICHKEOFPH ONE 1247 AIS aem inn Feo BR CIEE B saint xen dins E n 1 2 Lin KEY MH osc ose args ESEF aipa Tca5gor ILI ee HE oou BOTE L REFER PARTS LIST COMPONENT VALUES 2 URLESS OTHERWISE HOTEL RESISTOR WELUES ERE bM AD CAPACITOR VALUES WICKER RADE VOLTAGE ARE AF FOLLOWS 1 LAMP HO BARRE AX VHF WF SOL OFF ME
10. I E 1 159 4 51 8342 NEUS232610 3 3 1 168 5 hate ESTE 47 COUR 1 8 5 343 470 Lieu 4 51 280 805152510 1 5 KONN 1 168 4 51 344 1 05222610 2 2 17158 5 HZH i HN05470510 47 OIN 1 169 55 E345 10 1 160 5 5194610 190 1 168 5 MK05103510 10 RONA Ls ter 5 E345 R347 103610 10 flew 4 54 5931610 330 I1 16W 5 193102110 L IBE 64 5105510 1 MONM 1 6 82465 05000610 0 OK L I6N 349 5322610 3 3 TILE t 57 R287 4805322610 3 3 KOIA 1 168 5 R350 HNOS4A7T4610 470 1 16M 4 54 R28 5174610 470 KOIN 1 169 5T R251 HNOSS32610 3 3 KOIN flew F 51 8K05222610 2 2 KOIN 1 16 2 54 252 101610 100 OIM 1 1G6M 56 Reog 51936 0 to 1 168 57 H353 NH 51046510 100 HORN LALEM 4 54 R29 5104510 100 KONH 1flew 4 54 8354 1 2510 1f16R 5 R355 HKN05472610 4 7 1 1 4 55 5 10
11. d 2 4 5 Transmitter UHF RF Output NOTE Before alignment put the supply voltage and the al d mae ma h transceivers voltage in agreement with each other For accurate alignment of the transmission output the RF P C board s shield plate should remain attached Then connect the ground cable as shown in Figure 2 8 set the supply voltage of the transceiver to 13 8 V and the transmission output to the high power mode Then rotate R228 fully counterclockwise Connect a voltmeter to the antenna connector and set the channel frequency of the transceiver to 425 000 MHz Key the transmitter and check that the maximum output power is more than 6 5 VV After step bl set the transceiver to the VHF transmission output and high power mode Key the transmitter and check the output power is more than 5 5 VV set the channel frequency of the transceiver to 435 000 MHz and set the transmission output to the high power mode Key the transmitter and adjust R502 so that the output power 15 6 5 VV Set the supply voltage of the transmitter to 7 2 V DC and set the transmission output to the low power mode set the channel frequency of the transceiver to 435 000 MHz Then Key the transmitter and adjust R223 so that the output power is 0 4 W At this time check that the current drain is between 480 mA and 580 mA set the supply voltage of the tr
12. STANDARD 144 430 MHz Twin Band FM Handy Transceiver Coes SERVICE MANUAL STANDARD COMMUNICATIONS z PAG dr Jt Ji 4 MAGAR A oe A Downloaded by Amateur Radio Directory www hamdirectory info Copyright 1989 Japan Al Ente Pr igg 7 1 CONTROLS AND CONNECTIONS o 2 MAINTENANCE a MAE Ner 21 UI E o 2 1 1 Case Bottom Cover and Front Case Or ER RR MM cA SEN 213 AF and RE P C Boards i NES 21 4 Accessory Tone Squelch Board CTN520 Pia aa RO 22 Test SPEI Lus IE 2 3 Alignment Reference Points mm RENE 3F E EE TTT TTT TTT 24 and Performance 35 Aotenn Board CTN520 Ras NN NN I 4 THEORY OF OPERATION e Mie T Power Sippy EE Lote N aie 12 PLL Synthesizer sesane E 4 3 neceiver eee et La Pre tree Pe Pee Pet RR mme Se ee Pe eee HEE Fon EM isis meses aa chs 4 32 First
13. DX56562320R 0 0565 UF 4 185 08 001 14 107 EJ227006510 ELECT 220 UF G 3V nk86102305 0 001 4 101 2288 L 0095220300 22 PF 5 0 00 UF 10 6283 1 2095300300 30 PF 4 554 102300 0 001 UF 104 C290 L DK 861202300 0 001 UF 10 296102300 6 001 UF C291 DK8522320R UF LOX 0 091 1 107 292 1 0 022 UF 10 96 1023001 0 001 UF 10 C293 1 0095101200 100 5 FEASS TOMES CERAMIC FILTER CEOWASSE C294 1 TAKTAL 22 UF 65 3Y FG4o5304E3 CERAMIC FILTER CEUMISSE C205 3 DK 8522320R 0 022 UE 1 07 YJO700402R 15 FIN JACE TO C208 DR865103200 091 UF 4 ot YTlo TOQA3R B TO 4402 C237 1 096102300 0 001 OF 10 TJ 70o0404R 6 JACKE wada C298 1 DES6222300 0 0022 UF 104 11060113960 12 PIN JACK TO 1 096102300 0 00 YF 10 1104001510 DL TK Jace DAGGZ2920R 0 022 4 101 FC900zU02R FERRITE BEAD DRA4EZ2242200 0 22 10 FOSOO7F007R FERRITE HEAD DK 46224200 0 22 UF 4 104 FERRITE BEAD 1 2300 6 001 UF 10 FOOGOZO02H FERRITE BEAD Dxg amp 102308 0 001 UF 10 0 2 FERRITE DEAD i 2695330200 13 PF 4 54 HUIDO2T GR AICROPEGCESSO
14. HHETEZIEID BROS 104610 SPOIGLESER PTT BUTTON SPOOL E200 BUTTON rFqogqno402R RESONATOR 1 HIF 21001 1 EH15520182 FILTER 55 7 RESONATOR 22 505 FH4553018582 FILTER CDBM4S5CT 20090600026 0400 0095360100 00195350100 DEDODSIZQOR DbRB522320R DEKSE223208 TANTAL Gat POPS 25030 hk 00952503081 40919620 0018320 IlZ20003205 0 hHMOSIO04610 WNOS223610 5 h bhz24656l0 KHOan2246510 103610 168H 4 54 IFLR 54 RESISTOR 5 17168 t 51 RESONATOR 3 5 RESONATOR 2 570545 a 208711752 VOLUME CONTROL DhS622320H 001030092 VARIABLE RESISTOR Wz0n07Xl1T62 YOLINE CONTROUL m pee ree SS qe EE mex 24 58802020128 ROTARY CHANNEL SELECTION WEOSTX2400 DISPLAY BOAR
15. ME E ETUR QUI TIT Rt ate T EXPLODED PARTS VIEW AND PARTS LIST REEL DEA c c Cn to 63 63 63 10 10 10 10 10 1 m 1 11 12 12 16 18 7 SCHEMATIC DIAGRAM MEUM TRI 31 8 COMPONENT OVERLAY DIAGRAM E E 1 CONTROLS AND CONNECTIONS UHF EXTERNAL SPEAKER JACE EXTERNAL MICROPHONE JACK VHF EXTERNAL SPEAKER JACK ROTARY CHANNEL SELECTOR TRANSNIT BUSY BATTERY INDICATOR POWER ON OFF SWITCH LIHF VOLUME CONTROL VHF VOLUME CONTROL SOUELCH CONTROL CONTROL BATTERY LOCK BUTTON 1 1 NEGATIVE POWER TERMINAL OPTIONAL ACCESSORIES CTN520 CTCSS tone squelch unit CMC150 Mobile charger CNB150 Compact rechargeable battery pack for CNB150 CNB151 and 153 7 2 V 400 mAh CMB111 Mobile bracket CNB150 Rechargeable battery pack CLC520 Softcase 7 2 V 700 mAh used with 151 or 151 CNB152 High power rechargeable battery pack CLC521 Long sized solt case 12 V 600 mAh used with CNB152 or CNB153 153 Long life rechargeable battery pack CBT151 Battery tray for 6 AA size batteries 7 2 V 1200 mAh CMP111 Microphone speaker 150 AC charger 8150 CNB151 and 112 C
16. KT05472119 427 KOIN 1 104 HNOSTSaG1O KI051062110 HIOSIUZIID 51016 20 5470610 HHO51526120 105000110 HOS aT NHO35470510 92610 HOBIE KNOo5 153510 HANTS EEO I AN SS3ISIU NKOSO476TR KHa52216140 5153510 Kan55626140 HNOS3231610 HNOSOQqTGIR H4p5z216106 05 333510 5103610 NNOSZ216IU HASTA TEI 051 2610 HRHOS331610 NH2504761R HHKOS224610 NHaS5oCORID KNOSATUEID 5102610 ARNGSISISIU 181619 RHOS4ATIGIO 1610 102610 MNOSATIGIO 05101610 RYOS030050 5 10 K4051026140 KHYolo20050 HHOHTGIGIA 5 HHOSEO2ZG10 LELEN 2 55 1 160 57 169 51 LIEN 5 t 5X 17164 5X A 4 55 1 168 4 34 VARIABLE RESISTOR 50 KOH 1 1658 t 51 L IGE 5 VARIABLE RESISTOR 2B DESCRIPTION NNW050BZ51R 05 HHUSISIGIOU 0193610 52 1 RAGS 225610 0510
17. ace aor ee YE RT Soe I ROTARY Swi Tere LED DRIVER 2 cio pPD72256B E RESET FUNCTION SW 3 ea n LM I06 1 i ACSA INTE HNAL PEAR ER E104 MIC MUTE O26 HUM 55620 be Soe MICROPHONE PT 0205 T Dad DIAIZATYU i ae ee X mnn n quee TW rol ee LED Sw 0253 2 nal oy LX X OE OE uc ON BACH HP cw 8 RF n eo nr i Se 2S CRYSTAL EFE AHT Sw Gol fg T Cu dmt Pink A P ojjj maT TA ap 4 nel T ia pec AMP nr Amr 10734259 arg zscierm rare Atte JPE mani PETIT DETEN hire Ei mo dox ar ig a jan wix CT
18. 212 Hels R216 7 219 R220 2221 R22 8224 R220 Rzzb R227 229 Migo Head 82923 E238 amp 241 8242 R247 R249 250 253 R256 R256 257 R256 R239 52651 R262 22 R253 gt qu SS EL P TER m PART NO NI05000110 05223610 3619 5223619 HX8052241Bl123 054 73 10 KN0S472610 HHA TAB L 1 4610 KMOSATIGIU K1650061117 LO NHOSBIUA351 0 NHOSATSGIG HHO EO ARID NHOS5IULGETU BROS LMG HYOSC 0050 AYOS 040050 01610 1 03103110 HHS N 5 HNOSATOG EO 10 HEU5473610 5 HN SBATZEI HXd051061616 05673610
19. VHF The signal through the duplexer is applied to RF coil L408 by way of the antenna switching circuit The tuned by L408 after being amplified by RF amplifier 0412 15 applied to the gate of a first mixer 2413 by way of a band 09 L410 1411 UHF The RF signal through the duplexer is applied to RF coil 1417 by way of the antenna switching circuit The signal tuned by 1417 after being amplified by RF amplifier 0415 is further amplified by another AF amplifier 0416 through a band pass filter L418 1419 after which it is then applied to the base of a first mixer 0417 by way of another band pass filter L420 L421 4 3 2 First Mixer VHF The receive signal O amplified by RF amplifier 0412 15 applied to the gate of 0413 and the PLL local signal f0 21 8 is applied to the source of 0413 At 0413 there are created a sum and a difference of f0 and f 21 8 MHz However by a crystal filter circuit L412 F401 F403 the difference of 21 8 MHz 5 selected and after removal af spurious signal applied to IF amplifier 0414 WHF The receive signal I0 amplified RF amplifier 2416 and the PLL focal signal f 21 8 MHz are applied to the base 0417 At O415 there are created a sum and a difference of f and 0 21 8 MHz However by a crystal filter circuit L425 F402 FADA the difference of 21 8 15 selected and after removal of spurious signal applied
20. ge oes 180 050 TRIM RESISTOR 500 eee 00 022 UF T0 3 HNOS227610 22 L 16W 5 C810 11 097 0018 CAP 4 7 UF G 3N 5 NK05223610 22 KONM 1 16 5 amp 311 I 9 TANTAL 4 7 YHO003012R CONNECTOR 1204 e 47 PF 54 91 1 F 0358403R CERAMIC RESONATOR 1044 O30 dT PF 5 FOGSS840ak CERAMIC RESONATOR C814 1 0095102300 0 001 UF gt 10 C815 1 0096103200 0 01 10 0801 1 HC10008530 5 7119 0802 1 HC10002208 5 7119 0503 1 1000220 DIGITAL TRANSISTOR 4 0804 1 10002206 DIGITAL TRANSISTOR RTIP441M gt TO PAOI oJ TONU TONY 50 5 SQTU SUI GND TEU TEX TONE SQUELC P C BOARD EN m T T h 809 Mote FE d y dE 85 1 Hu oma i a 1 Es c ma 28 rn Erxl Fa i gt J 2 OUT 4 1 7 t m E 1 E 1 gt an a 55 On 4 Er a I X jo xi 1 dh Exi E 2 0 24408 dd 213095 3NOL B AG SHO
21. 0 01 UF 101 4 PF 0 25 PF 01 UF 4 107 MF 4 0 5 PF CH 0 9 PF 0 25 5 0 25 Ff CJ t 25 CJ CAP 6 5 PF 0 21 CH PF 0 25 CI 0 001 UF 101 9 FF 0 5 Cll 2 PY 5X CI THIHMLHG CAP PF 0 25 FF CH 34 Meca om gt i REF PART 00900104300 Care C473 CATA CAS C477 CATS C473 C481 482 C483 C484 C485 CARO CART CAES Ca oo C401 Cage C493 C485 6435 C487 cage C501 C503 C504 6505 C528 Coig Cada 6510 I C511 C513 C515 C516 C57 Codd C519 C520 6521 C522 Card Gola 5 25 C526 e527 528 C529 C531 Cool e532 Codd mer me p e p e ee eee qo 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0631070300 0095150300 0836102369 0091080300 0035180300 00306010309 0090015300 10400019 8091150309 0630050300 2030005309 6 102309 ORG 1002300 0090050300 DRAG 102300 Dparjag3on 00291100300 2295220300 8035220300 00399020300 00990360390 0095220300 00952203010 2090095300
22. a 54 1 LUCII92017R CHORE COIL 1 UH 1 MKO0SIDZ2610 1 XOHH LIIGU 1 FC900200ZR FERRITE BEAD 1 KH 54736510 47 KONA 1 169 4 51 FCc8002002R FERRITE BEAD HALL I 5 73610 47 1 169 4 5T FOSOOZO02R FERRITE DEAD 112 bL KN65473610 47 17168 4 514 FC9002002R FERRITE DEAD 413 1 5223510 22 Ls aw 5 FERRITE BEAD 2414 05150610 15 1 168 5 FC8802002KR FERRITE BEAD 1 NHOS5000110 1 10W 2 FERRITE BEAD RALE 1 51026106 1 1716U 4 51 Fc80020028 FERRITE BEAD RALF 1 HHOSIOA461C 100 1 15M 4 51 LOELOZOLSR CHORE 1 il RAJA 1 NH254736510 17 1 169 4 54 1 PLL 1C K118 1 K4055326 0 23 3 KORN 1 1 4 54 1 20002208 DIGITAL TRANSISTOR ETINI40N 126 1 HNOSIO2Z610 1 1 16W 54 1 HZ2001B250 155302 amp 421 1 HN0SIOIBIO 100 I IGU 2 514 L BRA2ODSGIZIR DIGLTAL TRANSISTOR K422 i MK05102610 1 1 169 4 54 HEX3415414R 2504154 429 1 NN051016510 100 1 168 5 DIGITAL TRANSISTOR RTIMIAONH NHMOSIOZEIO KORN LI 16M 54 1 122900159050 DIODE 155302 R425 2 820 DIEM 1 165U 4 5t 1 HZ20006020 DIODE NAT
23. CFS ET 6 3 Ordering Replacement Parts Please note that dealer may not be able to fill replacement parts orders without such identifying information s Reference Symbol Part Number Description Unit Model Serial Number M uU 2B cue 7 n 0098 Y 9098 SSB 0656 9027 19 DESIG 0028 0038 0058 GOGH 0078 0088 GO 88 0108 0118 0121 0138 alik 015 0206 o22R g224B e258 0268 0288 tzan 030H 0311 032E 9228 1248 0358 0368 DACH 0418 O4ZB 0458 4488 0478 0528 10538 056 051 054m 0658 065608 0678 COLE 009 811 9011 0011 0020 00210 0041 GOS O07 ll 0018 0278 0438 mre BJ aee ae BD D BR p e ba UE ma ma aei ma Ra me r3 PA Pd pd D bb er Bons HEHEHE QTY PART NO 873054030 0972107010 097X1258010 0517120019 97270010 09733030194 09741120020 5130020502 20652010010 0321129010 28871005010 05110568010 531182490340 09741232020 0974120049 09748651930 51102560350 09710025010 2247011010 23010 270020 2195020232410 0611067020 29520
24. KCGOOTLOOLR 2096102300 2096102300 KCOSTXEOUSR 0096102200 0096102300 896102300 0 95 220390 2091060300 7 0015270300 100 00354193900 DHSRID2200 006102300 25102300 2080010300 1091090309 20990615309 2091080300 296102300 6095410300 0095470200 DESG 123200 0090040300 DES35103200 Dk861023010 0091070200 0091970300 PPA AO 2095120300 0055159390 ODIO O20 TO 0 Cx106400010 0090959500 00909019390 rer Uk3gG61G2300 AOA MONSIEUR 00309 190300 CAT 19 mor dir ELE FFT 0 047 0 001 4 107 8 001 UF 4 101 1 0 27 PF 4 51 CR 100 FF 5X1 UJ 51 UJ 5 001 UF 4 104 2 901 UF 4 101 5 PF 0 25 PF 0 22 UF 10 194 001 OF 0 047 0 000 UF 0 05 01 001 OF 19 ELECT CAP 10 WES 164 TAHTAL CAP 4 7 0 0601 UF 10 0 0401 OF 10 22 0 UF 109 0 OF 104 OOF 101 22 TF 4 51 Cll PF 0 5 PF CI 6 001 107 27 4 5X FF 5X 47 4 53 5 PF 0 25 FF CH WEF 10 10 001 UF 10 9 5 TF CH FF 4 0 25 4 0 5 5 FF 4 0 25 0 5 6l UF 10 47 5 47 PE 5X
25. 20953903090 25951035200 0091060300 951032092 2090026300 2095150300 09515031 0 96 02340 02300 08965102300 095102300 102 300 22093120390 OL TOF 102300 DD351503010 0090029400 2095220300 20900153906 209095000 096162800 0090221800 296102300 96102309 BPO 85102304 0039050360 0090050100 102300 DkS6102300 DRG LO2900 Dp3rtgTo3049 0 25 3 PF 1 0 5 CH 15 PF 5 CH 0 001 UF 10 8 PF 4 0 5 PF CH 16 PF 5 TRIAKING CAP 3 PF 1 FE 0 25 Gk 1 5 0 95 TRIMMING CAP CAP 6 PF 9 0 5 PF CH 1 FF 0 2535 Cll 28 0 25 PF CH 001 L0 UF 28 Cll O01 14 Cll 0 5 PF CH 5t CH 22 PE 5 CH PF 25 PF 0 25 PF Cd 5 Cli 0 25 PF 5 UF 504 amp FF 0 5 0 01 UF 10 4 0 105 FF 5 5 15 5 CH 0 00 UF 4 105 0901 UF 4 104 UF t 10 901 UF 10 001 10 107 12 FF 5 0 001 UF 4 105 0 001 UF 10 I5 5 2 4 0 25 22 PF 55 1 5 PF 0 25 5 PF 4 0 29 PF 0 C01 UF 101 220 PF 5 OT UF 4 104 001 103 0 25 001 UF 4 101 0 25 PF PF 0 5 PF
26. High The DOWN signal when the rotary channel selector is rotated counterciock wise is subject to signal counting UHF signal meter analog signal input VHF signal meter analog signal input UHF tone detection input with tone squelch connected High tone decoding tone detection input with tone squelch connected High For tone decoding High When PTT button is pressed High When FUNCTION button is pressed High Mute operation for touch tone output Buzzer tone square wave output Tone squelch UHF tone data strobe signal output High when tone burst rs set Serial data signal output to PLL and tone squelch Data clock signal output to PLL and tone squelch High With VHF UHF PLL not in phase lock Low With VHF UHF PLL in phase lock 13 Low Low Lowe High o a High Latch up 4 6 Built in Touch Tone Board 4 6 1 Decoder As to a part of the second IF signal from the pin 11 of 240 or 0249 the inverter 0257 and VHF UHF selection switch 0258 or 250 are operated by the signal fram the pin 5 of micropro cessor 2201 to input the IF detection signal to the AFD pin The IF detection signal input to the AFD pinis then entered ta the pin 2 DTMF encoder 0901 The signal thus entered is judged as to whether it is valid or invalid When valid from the pins 12 to 15 of 901 the DTMF signal decoded into digital form is output t
27. 001 YF 105 C366 1 9 001 UF 10 Dk396102360 09 001 10 C267 1 DK86222320 amp 0 022 UF 4 104 1RK351032200 0 91 UF 4 161 CIGR DES65103200 0 00 UF DkK964722300 0 0047 101 L DK465224200 0 22 OF Dkg62232 0R8 0 027 UF 10 1 DK56568320R 0 0638 UE 104 DESG2Z2920R H 022 UF 4 104 C 71 r Dk 6103200 9 01 DE46104200 0 0 102 DK4G104200 10 0095280300 68 PF 5 1 Dx46 04200 0 1 10 Dk95102300 0 001 101 C274 DE564732200 047 UF 10 4 7502520 ELECT 4 7 UF 25Y 275 1 pK5 665B3z20R 0 068 UF 4 101 Uko568320R 0 068 UF C277 E 096103200 0 01 UF 10 pi55222300 6 6022 UF 4 7 5 kB6102300 9 001 UF 4 101 471300 470 PF 4 103 C279 nk865102300 0 001 UF 4 104 0 068 YF 10 C280 1 DK96682300 0 0058 UF 10 2646562300 0 0055 UF 10 0281 1 47502520 ELECT CAT 4 7 0 001 UF 101 DKS8522320R 0 022 UF 10 23600620 ELECT 13 2 1 DK9627320 n 0 027 UF 011 02300 0 001 UF 104 1 nKk96682300 10 DEPRECATED 0 066 UF 1 07 285 1 EYI0505020 ELECT 1 UE SoY DH55683120X 0 058 OF 10
28. 2 0 Approx 850 mA Approx 1000 mA UHF 13 87 2 Lo 10 35 Approx 480 mA Approx 480 mA UHF Standby receive Twin band mode Approx 70 mA VHF Mono band model Approx 36 mA Approx 45 mA UHF Battery save Twin band mode Approx 32 mA VHF UHF Mono band mode Approx 17 mA VHF Approx 18 mA LU HF Auto Power OFF A P O Approx 1 mA VHF UHF Microphone input impedance 600 2 Speaker impedance lt gt gt lt 55 Dimensions of transceiver itself without projections 157 x 55 x 31 mm Neigh with batteries and antenna 3 2 Receiver Measurements are made in accordance with ElA J Stan dard 04 Receiving system Double superheterodyne Intermediate frequency VHF First IF 21 80 MHz lower Second IF 455 kHz UHE First IF 23 05 MHz lower Second IF 455 kHz Receive sensitivity 12 dB 10 dB 1 15 dB for JAIA method S N ratio lat input 0 5 Or more Squelch OPEN sensitivity e s eri 14 de Audio output power 200 mVV distortion 10 at 8 2 3 3 Transmitter Measurements are made in accordance with ElA J Stan dard 03 HF output power 2 4 W with
29. 4 4 Receiver NOTE Perform alignment with the RF board s shield plate remaining attached UHF Sensitivity Rotate the UHF and VHF squelch control knobs of the transceiver fully counterclockwise and clockwise respec tively b Set the channel frequency of the Standard Signal Generator transceiver and the 550 frequency to 435 000 MHz The 556 signal shall be subject to standard modula tion Connect the speaker plug in to the SPU terminal UHF external speaker jack Connect a voltmeter to TPS and raise the 556 output level 50 that the voltage at TP5 becomes about 0 5 V DC d Set the channel frequency of the transceiver to 435 050 MHz Adjust C464 C470 C473 C479 C482 and 1425 in this order and repeat this sequence twice tomaximize the reading of the voltmeter Set the channel frequency of the transceiver to 439 950 MHz and adjust C482 so that the reading of the voltmeter Is Maximized f Set the channel frequency of the transceiver to 435 050 and adjust C464 C470 C473 and C479 in this order 50 that the reading of the valtmeter is maximized oet the channel frequency of the transceiver to 435 050 MHz and check that SINAD is less than 8 dBu Check that SINAD ts less than 1 5 dB against the center value in range of 430 050 MHz to 439 950 MHz i Set the channel frequency of the transceiver to 435 050 MHz and check that 20 dB 05 is less than 5 dBu Set the channel frequency o
30. 5 amp nt i 5 2 51 5 5 4 5 51 4 7 bn 5 4 51 51 51 5 3 4 54 PART NO REF pesia 271 PART 2322 1 405331610 330 OIN 1 169 5 54 R330 1 NNOSOZZGIR 2 2 L I6U 4 54 R331 1 NK05152610 1 5 KONM 1 16 s St l DESCRIPTION DESCRIPTION KN05101510 190 OM 1 168 4 543 HNOS473510 47 IJIH 55 NR054735610 47 1 150 5 R263 5102510 1 1 169 4 51 R332 KN05103610 10 KOIM 1 165U 4 54 r RITO 162610 TFI 4 57 2323 05020050 VARIABLE RESISTOR 50 EOIN E271 HNOSIO3SG6IO0 19 KOIN 1 16W 4 514 NNOSIBZGSI 1 8 1716 4 55 05472 610 47 OAH I I5U 5 5152510 1 5 1 16W 5 RAOSATOGIO 47 OHH 1 165 4 54 R338 KNOSIO03510 10 17164 4 54 339 WHo533 510 336 OUR Lf lee 4 57 1 1 Rad 1 1 1 8340 1 2 1 1 16 54 1 1 1 1 336 3257 01610 190 OIN 4 54 NK054726190 47 EDHE I I15H 4 57 9502261 2 2 Lf lee 54 205152510 1 5 1 1658 4 51 KHNOSIOS36GIO 10 1 4 54 NT035030050 VARIABLE RESISTOR 50 KOAN
31. C244 C245 1 C246 C247 DAAR C248 C258 5251 GETZ 0096102300 95102300 bkge6102300 bK9g610223040 105050210 1902100 DRHGL02Z200 2095300300 996102200 DEEZER 0095101200 20 YJ10002220 DK56473200 96102300 DKXap1 z3ot DK566583208R Dh56na2n20R 1923961 1 2300 500620 0 6102300 2095220300 DESCRIPTION INTERNAL SPEAKER 27 BOARD FLEXIBLE 2T PF 0 001 1 001 0 001 001 047 LLECT 601 0 068 0 068 0 001 001 0 0847 ELECT 1 811 2 901 2 50501 0 00 0 001 TAHTAL 0 001 4 7 emo 10 101 10 t 0 4 7 101 t 01 10 4 105 4 105 4 10 4 101 t 101 10 10 194 101 10 0 047 UF 107 CAP 4 7 UF B5 3 ELECT 23 l UF 5 3YX 0 0101 TANTAL CAP UF UF UF ST LII UF UF 10 155 10 10 a 107 a 104 10 1 Fa O E pe a 0 16 101 4 101 4 5 ll 220 UP ee AY 4
32. FOR SOUELCH CONTROL FOR ROTARY CHANNEL FOR VOLUME CONTHDL HARD STEAT FOR C4228 NUT FOR VOLUME CONTEDIL BRACKET FOR YOLUME COMTEOL BATTERY CASE BATTERY CASE REAR CONTACTOR COHTACTOR HOHTHELE PRODUCTION LABEL SHIELD FOR ENE SHIELD FOR TCO FOR BATTERY CASE FOR SHEET FOR SHEET FOR BATTERY SIILELD FOR EF BOARD INSULATOH FOR FOR INSULATOR FOR ADbHESIVE FOR CRYSTAL OWNER S HARUAIL SLEEVE FOR C528 HASTER CAHTOM FOR C524 CUSHIONK cUSHION LII POLYETHYLENE BAG FOR C528 SERIAL LABEL SELECTOR PART NO 000362024 K55000D26R 1 YR339012048 0095270300 0095279300 0896102300 096102400 96102300 296102200 DX55473200 EYATS302520 Dk 96190221800 EIZ22700510 DK865102 300 pagornz300 pEsg6 022300 196102509 kconTXO0OLR bk96102300 DEkSGSAT2I200 13C09871001H 0624 EY33500620 Dx 96102300 EY33500620 Dk361232300 DKB65102300 UHO5102200 C236 5247 C238 C238 C240 C24
33. dB oct The deviation is level adjusted by semi fixed resistor R395 or R397 UHF and is applied to the modulation circuit The tone burst signal is level adjusted by semifixed resistor R392 Idev adjustment and through alow pass filter A392 R393 C343 is applied to the noninverting input pin of a low pass filter in 0261 12 4 4 2 Power Amplifier VHF The signal output from the OTV pin of a VCO for VHF is amplified at younger amplifier 0424 and is input to the pin 1 of power module 0425 The signal amplified at Q424 is further amplified at 0425 to 5 0 at 13 8 V in the high power operation The signal amplified at 0425 is output from pin 4 and after the sufficient attenuation of the second and third harmonics by way of a low pass filter an antenna switching circuit and a low pass filter in the duplexer is Supplied to the antenna In the transmission output adjustment by R497 the high power is set to 5 0 the mid power is to between 2 0 and 3 0 W and the low power is to between 0 2 and 0 6 UHF The signal output from the OTV pin of a VCO for UHF is amplified at younger amplifier 2432 and is input to the pin 1 of pawer module Q433 The signal amplified at Q432 is further amplified 0433 to 5 0 at 13 8 in the high power operation The signal amplified at 0433 is output from pin 5 and after the sufficient attenuation of the second and third harmonics by wa
34. for reception and to diode 0606 and 607 Tor transmission the modulation circuit the VCO signal 15 subject to direct modulation by vari cap diode 0609 UHF The PLL local oscillation frequency s made by VCO 0653 for reception and by VCO Q658 for transmission The output signal of either V CO is input to the transmission or reception circuit Part of this output signal is applied to the input pin B the prescaler of the PLL IC by way of buffer amplifier 0655 and is thereat divided into 5 kHz tunning step 25 kHz by a programable counter into 6 25 kHz for tunning step 12 5 kHz The PLL reference oscillation frequency which is 12 8 MHz due to X401 and 0405 is common with VHF The subsequent process up tothe control voltage is the same as with VHF The control voltage is applied to var cap diode 0651 and 0652 for reception and to vari cap diode 0656 and 0657 for transmis sion In the madulation circuit the VCO signal is subject to direct modulation by diode 0859 4 3 Receiver The receiving system is double conversion super hetero system with the first IF of 21 8 MHz lower and the second IF of 455 kHz lower for VHF and the first IF of 23 05 lower and the second IF af 455 kHz upper for UHF 43 1 Front End The RF signal picked up by the antenna is subject to discrimi nation between VHF and UHF by way a duplexer VHF low pass filter UHF band pass filter
35. the AG output is sinewave of 1 kHz mV Turn the time constant 750 usec of the linear detector filter Then check that the frequency difference between the plus and minus areas in 25 0 kHz deviation 15 within 0 30 kHz Adjust the AG output and set the deviation to 232 5 kHz thereupon measure the distortion At this time check that the distortion is within 596 d After step check that with the microphone plug released from AG the AG output voltage is between 4 mV AC and E mV e r C PLUG AUDIO GENERATOR Figure 2 10 CORRA Built in Touch Tone Board a Perform transmission with the micraphone plug connected in ta the external microphone Jack At this time the audio generator output shall be zero set the channel frequency of the transceiver 435 000 MHz Adjust R907 so that when the 8 key is pressed the frequency deviation is 3 2 kHz At this time check thal monitor sound is heard from the speaker Set the channel frequency of the transceiver to 145 950 MHz and connect the microphone plug in to the external microphone jack then Key the transmitter Check that when the B key is pressed the frequency deviation is between 22 7 kHz and 23 8 kHz 3 Lc UHF Tone Squelch Board 520 Install the tone squelch board into the transceiver after which set the pertinent switch of the transceiver t
36. to IF amplifier 421 4 3 3 IF The signal converted into the first is applied to a first IF amplifier 0414 and after amplification thereat applied to the pin 20 of detector circuit 0240 The first IF signal applied to the pin 20 is mixed with the second local signal of 21 345 MHz at the second mixer in 0240 after which it is then converted into the second IF of 455 KHz The second IF signal is output from pin 4 and after removal spurious signal by ceramic filter F201 is applied to pin 6 The second IF signal applied to pin 6 is demodulated at the second IF limiter amplifier and quadrature detector circuit in 0240 and is output an audio signal from pin 11 UHF The signal converted into the first IF is applied to a first IF amplifier Q421 and after amplification thereat applied to the pin 20 of UHF detector circuit 0249 The first IF signal applied to the pin 20 is mixed with the second local signal of 23 05 at the second mixer 0249 after which it is then converted inta the second IF of 455 kHz The second IF signal is output from pin 4 and after removal spurious signal by ceramic filter F202 is applied to pin 6 The second IF signal applied ta pin 6 is demodulated at the second IF limiter amplifier and quadrature detector circuit m 0249 and is output as an audio signal from pin 11 11 4 3 4 Audio Circuitry VHF The audio signal output from the pin 11 of 0240 after maki
37. touch tone data signal ____ LCD driver touch tone data clock signal AFD Touch tone IF detection signal input line PD Touch tone decode IC 0901 Power down signal High Power down Touch tone decode IC 0901 Qutput data control signal High Enabled Touch tone encode shift register enable signal Touch tone signal output line By 5 0 V DC line Internal speaker line Lampline Ground 4 8 3 Tone Squelch Board Terminal _ Description W801 J204 Tone Squelch Board TONU TONY VHF TX tone signal output UHF AX tone squelch IF detection input line VHF RX tone squelch IF detection input line Tone squelch data signal Tone squelch data clock signal ______ UHF AX tone squelch detection output Squelch ON OFF signal tone squelch detection output Squelch ON OFF signal Ground UHF tone data strobe signal VHF tone data strobe signal 5 0 V OC line 477 6 EXPLODED PARTS VIEW AND PARTS LIST 6 1 General Information on most electrical and mechanical parts is included in the parts list The parts are listed by reference symbols in alpha numeric order 6 2 Chip Parts First through fouth digital of part numer indicates chip part as follows CAPACITORS SEMICONDUCTORS RESISTORS INDUCTORS DDA HE Lees ee DD lr cos 5 DRA pul DKS
38. voltage at TP3 is between 4 75 and 5 25 V DC c Connect a voltmeter to TP4 and check that the regulator voltage at TP4 is between 3 8 and 4 2 V DC d The VHF current drain will be around 38 mA with squelch ON and the UHF current consumption around 45 mA with squelch OM 2 4 2 Microprocessor Clock NOTE The microprocessor clock is 4 MHz The internal tone frequency is produced from the micro processor clack Accordingly the tone frequency alignment be comes the microprocessor clock alignment 2 4 3 PLL Synthesizer VCO Frequency Setting Set the channel frequency of the transceiver to 145 990 MHz in the receive mode b Connect a voltmeter to TP1 and check that the voltage at TF1 is between 1 25 and 1 55 DC Key the transmitter and check that the voltage at TP1 is between 1 4 1 7 V DC Set the channel frequency of the transceiver to 435 000 NIHz in the receive mode Connect a voltmeter to TP2 and check that the voltage at TP2 is between 2 35 and 2 65 V DC f Key the transmitter and check that the voltage at 15 between 1 65 and 1 95 V DC Local Frequency Display frequencies of the VHF and UHF bands in twin mode and set the channel frequency of the transceiver to 435 000 MHz b Key the transmitter and measure by a frequency counter the output passed through a C M coupler Adjust C410 so that the frequency counter reads 435 00000 MHz 2
39. 0005 75 SIHVd TIY ON m SOVHVSOXSIIA 4 HOll2vdv2o ONY SWHO NI 33V saml A HOLSIS3H 1 5 55 1 3n1vVA LNSNOdWOD 1511 51979 01 1 T 1 rx T 1 fic a m J a MM R 4 Y dT Au CAI T E P 4 TER 4 Ma 9 x T m cm T MM s F 1 5 444 zu ri i T m ma m T T 1 1 RTF RN H a i m m m ERST T 1 n LE Tu 1 X Ld A11 HT UH HT HIRA HE E rwr Der TH ro e USO Kos RIT t zl pus 4 aT 002 ei agai 8 a mtu PE arme aT 2 1 ay HEHT 1 Socr Wig 10 gigi Yy monu ms zi A gu ani a F T te
40. 001 UF 10 901 UF 1 101 001 UF 10 PF 29 5 PF CI Gu L mmi mur mus Gub EIS m 210605016 951027090 DESH 102 bp30020300 090019390 2090050500 095102390 0055390300 300 DESEGLOT 296102390 PRIS KGOSTEODZH 5 2300 DESGIOZI00 MEI TORI 02 0 DESGLOZIO DxS6102300 230 096102300 19200 6192309 Dnaopogaco KCUSTXDOLE 226192309 95102300 DpHB86102300 0896102300 02310 00622208 096102300 0091100300 00951505300 5101300 0035330300 1 9321800H5 1052305083 9100307 1191003258 91002236 LUQEIOZ O10 221530010 1001102019 FL85002002E HLUS 00203 MLU 3ODOORORR LA5501BTZR LA5501813R lL 145501 amp 13R LA amp S5201813H LAGI Talal DESCRIPTION ELECT 10 001 104 001 UF 10 00 UF 10 i 091 UF 194 0 4 0 25 4 0 25 PF 001 UF 10 39 1 51 CH 0 001 UF 44 10 0 00 UF 10 0 001 UF 101 0 001 UF 101 0 001 T101 0 001 UF 10 TANTAL
41. 008210 MEA FOE 132190077025 RA amp LODDIZ N KN05473510 DESCRIPTION FHA DIGITAL TRANSISTOR DIGITAL TRARSISTOR DIGITAL TEANSISTOR DIGITAL TRARSESTOR DiGITAL TEANSISTOR FHAA DIGITAL TEANSISTOR SY REGULATOR 551254016 DIODE HCZH46 DIODE 2846 DIGITAL TRANSISTOR 2564154 F Av REGULATOR 58124046 DIGITAL THAHSISIOE 25BTUBCDI DIGITAL TRANSISTOR CNS DIGITAL TRANSISTOR 25 879B DL DIGITAL TRANSISTOR 258708 OL PiGdTal TRANS 25n7588 DL DIGITAL TRAHSISTOR 25p7981 10L J DIORE 2 DIGITAL TRANSISTOR 25B7598iD J DIODE YIGG DIODE VIGE TK104208H DIODE MATLA TRAKSISTOR MATIA DIGITAL SC2R46 25114411 2504154 TRAMSISTOA TRIGGZOR GLOBE HATTA DIGITAL TRASSIS DIOQDE 25114417 251144 2554154 NINZUTIM 6 ITC1566F HEKA SBE DIODE 0227 53 DIGITAL TRANSISTUR FRAG DIODE 100 DAZ DIGITAL TRANSISTOR RTITA344 EEGULATDR 58072041 47 1 158 4 51 YO 1 169 5 FAF FHN FHL SISTOR TOR R203 R204 R200 296 R20R E209 R210
42. 0D 52 24 510 NK S2226108 5 HNOSIORBLO NNOL2223610 HNOSIOZAhLU KOS 102610 HHOSICZBEIU KNob1b2610 HHORTZAEID 5102610 KH blOZBI1U RKOSZZIBIU NKOSI O2h5ID NEOSIOZhIO NEOBISZAIO 05532610 5 NKOSIAM26IO HHS 1825191 NK S819 RHOS1O7610 191619 1 1005011 1 1005011 amp MZ097X1712 0210900 KCOSTEOUZR 042564723200 1C ST7TXODUIR DESAITZ2O00 4 102610 1 HROS1O3610 1 1 1 1 1 DESCRIPTION 1 169 4 51 1 159 4 54 flew 5 L LGE 5t1 5 5 I I6M 5 1716568 5 1 158 4 51 1 159 51 L 159 5 1 164 5 5t flew 5 51 51 i TTI 3 52 1 1 164 4 53 27 TIFLE t 51 22 1 1659 5X 1 16W 4 513 I KORN 1 1658 5 92 YOH Ls law 5X 22 1 164 4 55 K NH I1 I6W 51 HORN 5 1 18N 4 51 LALOR 5 LIFTED 51 1 16W 51 55 1 t69 5X 22 1 1568 54 1 FOIR 4 55 1 I IEW 4 52 27 ATEAN 1 1659 51 1 1595 4 5 1 1694 4 5 1 168 51 1 168 51 Lidge 55 4 55 51 i IGE 54 51
43. 1 Frp 33 UF SG IF UF Br GAF UF uF JE i 10 UF IGWV 33 V UF SG DESCRIPTION en PART DESCRIPTION C245 2 0 001 101 DK55683220R 0 068 UF 10 1 C254 KCOSTIOOMR TANTAL CAP 22 UF SG 30 OKSG47 2900 0 0047 UF 4 101 C256 1 103200 O 91 10 Dk456224200 0 22 UF 107 C257 1 nK86102300 4 101 DKSGZ2320R 0 022 UF 107 LEE 096222300 0 0022 UF 101 6 1121090 0 001 101 C258 L 095102300 0 001 UF 4 101 DXSGZZ2220R 0 022 10 C260 1 DRYGZZ320R 0 022 UF 4 101 1 0505020 ELECT 1 UF 50V C261 1 Dk46224200 0 22 UF 10X UKS656320R 0 056 UF 10 C262 1 DK46224200 0 22 EF 1 094 EJZ227005610 ELECT 220 UFS6 C263 1 8 02200 0 001 UF 10 DK385 02300 0 001 C264 L DK86102300 0 001 UF 10 EkJ22700610 ELECT CAP 220 UF 6 C265 1 0095330300 33 5 96102200 0
44. 10 IF 168 54 KN 51061G1OD roo OIN 1 1648 4 51 RSA 4MK0512161492 120 5 1604 5 23610 22 LFTB 4 5 EKS 380 OM 17 5 EGOS 5193619 10 ROHM I 168 a 5t 8454 KNOS 153610 15 1 168 4 51 1 HH h4T2610 1 7 Ly teu 5 RBS 1 22 I I5U 4 61 507 L KNOSIDZEIO L KOEN 1 15 55 REST 10 1 16 5 1608 1 MNOS223610 22 KONN 1 1 5 ROSE 1 5 4 T L I5M 5 RHO 222610 2 2 L LEN 51 1658 1 05331610 330 ON 4 54 d 1 NHOSIO36IO FEO 1 169 2 54 REGO L 05473610 47 I I5V 4 54 1 NNOSIOSBIO 10 KOUM 1 169 4 54 R651 1 NK05222510 2 2 1 169 4 54 HS i 47 QUAM 2 5222510 2 2 EON 4 55 H613 1 KN051061610 100 5 663 1 5101610 100 ONA 1 164 1 51 1 MNOS2TIGIG 270 OHH 1 16 5 FBGA 1 KNO51036 0 10 1 16 5T E613 1 9 1 1659 54 HERS 100 OAH L IB5W 54 S516 L KN05472610 4 7 I I15W 5 RGGG 1 NMOSIO3810 10 1 16 5q He TF 8 KOs 51 REHET KHOSA4T26510 4 7 LILLEN M 51
45. 10060 62031 24006 0975101010 5106020240 odg71054020 6 DESCRIPTION FRONT CASE FOR SPEARER FOR LED INSULATOR FOR LOD BUTTON FOR FOR NSULATOR FOR LCD SCREW FOR CONTROL P C BOARD SCREW FOR CONTROL BOARD CONTACTOR FOR GROUND CLAKPER FOR BUFFER FOR LARP WOT FOR GHROUND CUNTACTOR FOR GROUND INSULATOR FOR LCD REAR CASE LABEL F R BELT CLIP SCREW FOR BELT SCREW FOR REARCASE CAP FOR NICROPHDME SPEAKER FOE ANTENNA FOR Giza BUTTON FOR LOCK SPRING FOR LOCH SCRER FOR HATH P C BDARD FOR DC IK JACK SCREW FOR SPRING LUG FOR POWER MODULE SUPPORT FOR SHEELD SUPPORT FOR SUEELD SCHEW FOR SIIEELD BRACKET FOR 0971055010 087X154030 097 1540 0 09714154010 961 156010 28652011010 065615123010 97513123020 081X123050 339C054010 4396064020 0 1 1231720 0 22140 22 0 1592861020 0625109020 0971100020 96513123069 0511120020 19572107020 2062107030 0871120010 0971254010 08741200230 9611122010 1010 ogTXa804c20 0971509010 2962809020 8011530010 8523019014 NSULATOR ESCUTCIEOH
46. 166 2 Hz Current Performance specifications are nominal unless otherwise indicated and are subject to change without notice 4 THEORY OF OPERATION 41 Power Supply Those voltages on which C528 operates are summarized in the following Table 4 1 Voltages T au Iv Men abe Tes 2327 ia uen l EF ARP ra alg mS 0240 Abr m vase E 0220 srr ae al a 2 GT 0223 gt d CE ee Le raei H 1 Ld wei pM 42 PLL Synthesizer 47 PLL Synthesizer gt paco REF OSC or 22 20 ASAS SAHI AA C GSS Mes UHF um 9652 murum ere LPF vro 2380 1 x i 415 4 1 LL HT 30 00 MICHA a 1 HE 8 PROCESSOR eei 459 209 MH E i mua mum mum Ap mm Figure 4 1 PLL Block Diagram VHF UHF The PLL circuit contains two systems for VHF and UHE respectively Moreover are incorpora
47. 5610 HNOSIOUZOIO NHOS 102510 NKOLIOZHIO RHOS 224610 2236 14 YHROTOESE TE TEGOOAGTSE 12001318 LELEN 54 1 1869 5 1 1658 54 T2 EF CORD CONNECTIVE CORD TO J202 CONMECTIVE Cort CRYSTAL 42097717320 ppanoa4036H Dpp3ango4036R Dk9g51022304 900101358 096107300 951092300 0095101 368 DD80404036H 2D58001036gH DK951023201 BD9002036R 00900 10300 0290050300 095102300 0320501 LCI2210 5R LCIZ2Z1017R HLOSGOS ORR LC12214015R LuU211010611 HZ400Db505R HY Z027 101 FR 534245008 220011058 21000 2056 MEZA P01 K InX234245008 oc CL CHOKE COIL CHOKE COIL COIL 4 51 COLL 2 2 UH CHIP COIL 0 1 DIODE VARI CAP DLODE 2502100423 YARI CAP DIODE 25R210 Y2 REF DESIG PART NO DESCRIPTION PART NO DESCRIPTION HX3424500R REF DESIG 27 2504245 JELI G64 1 1 8133335623120 2SC 3456 R244 501 1 NNOS52226510 2 2 KORN 1 158 4 57 EESLI 1 NHOS222610 2 2 ROHM I LAU 543 R602 1 5 100 ORA 1 16W t 54 051026
48. 72610 4 7 KOU 1 168 5 REGA HNOS321 6 0 230 4 54 HER3 NFOSIUSBIO 10 KOHN if few 5 Puti 9209751720 P C BOARD 5 RETI FNOS331610 330 OIM 1 164 4 5Y 196102300 0 001 UF 5 100 PF 57 0035156262 51 UJ 6295150358 5 5 096102300 001 UF 10 Dnago2036R FF 0 25 01 8670 NKOS472510 4 7 i 1 1 F 1 0696102300 00 5 101 L 1 0 DP3og2ns5R 2 FF t P FF 96102300 0 00 9 i 1 2 n PF 54 UJ LED 196 102300 001 7 0 FF 0 5 0091160360 PF 0 5 PF DDBOQUSA3EE 253 25 og cab 03965102300 0 001 10 1 PF 4 0 25 PE 296102300 0 DUL 10 CERS 90 2 2 0 25 C664 2056 2 PF D 25 UJ LG 0 0596102390 0 001 t OS 185 1102219021 COLL 2 5T 1657 LC11024017 amp uH CHORE COIL ALOSOOS0GH AIR COIL 11020 7 CHOKE COIL oH ALOSGOS ONE ALR 2 5T L653 855 T ET dm Goa m s eu L556 LCIIO20I7R CHORE COTE 1 UN M4LOJOUSOGR AIR
49. At this time check that the current drain is between 800 mA and 1100 mA Set the supply voltage of the transceiver to 7 2 V DC and set the HF output to the low power mode Check that the output level is between 0 24 watt and 0 45 W At this time check that the current drain is between 480 mA and 580 mA e e d UHF Modulation set the supply voltage and channel frequency of the transceiver to 7 2 V DC and 435 000 MHz Connect the microphone plug as shown in Figure 2 10 below in to the external microphone jack and adjust F397 so that the frequency deviation is 25 kHz provided that the AG output is sine wave of 1 kHz 60 mV Turn ON the time constant 750 usec of the linear detector filter Then check that the frequency difference between the plus and minus areas in 5 0 kHz deviation is within 0 30 KHz Adjust the AG output and set the deviation to 3 5 kHz thereupon measure the distortion At this time check that the distortion is within 3 After step check that with the microphone plug released from AG the AG output voltage is between 4 mv AC and mV AC b ol VHF Modulation Set the supply voltage and channel frequency of the transceiver to 7 2 V DC and 145 990 MHz Connect the microphone plug as shawn in Figure 2 10 below in to the external microphone jack and adjust R395 so that the frequency deviation is 5 kHz provided that
50. CAP 10 901 104 901 10 901 194 OT Ul EDT 001 UF I01 Ort OF 109 001 10 UF A UF 105 001 OF 10 001 104 01 FIR O01 UF 104 970 25 FF 4 7 OF Pel SY O01 UF 1 94 UF 10 001 UF 1049 FOL 17 001 144 022 UF 195 091 105 PF 0 5 FF Cl RF 94 CH Loo FF 4 53 CH 33 PF 5 CH CEYTSTEL FILTER 2151580 CRYSTAL FILTER 2351500 ECF EXTERNAL EXTERNAL SPEAKER JACEK Y U EXTERNAL SPEAKEH JACK 0 CHIP COIL 1 COIL 33 Fil COIL Ul BEAD COLL 2 5 COLL 57 he oS 24 Soo cid pui mu uo ug Oo Oo gt 4 CATH COILL 4 5T COIL COIL AHTENHA COIL COIL COIL PART pissed baut DESCRIPTION 27 AIR COLL 1 51 Gs28 1 DIGITAL TRANSISTOR HTLNIALE ALOSOOSOGR AIR COIL 429 uz20027058 DIODE 155233 HLOJOOSOGR AIR COIL 1 5T 1 Hizz2000420R DIODE 1 KL030050GR ATR COIL 1 5T 9431 1 HX33356010 25033651224 1 5 AIR COIL 1 5T 143211 HX33357100 25C23357 RE I ALOJOOSOGA ATE COIL 1 5
51. CBT151 2 0 VV with CBT151 2 8 W with CNB150 CNB151 153 2 5 VV with CHB150 151 CNB153 5 0 with 152 5 0 with UHF 152 Mid 2 3 with VHF CBT151 1 8 with 151 2 5 with CNB150 CNB151 CNB153 2 5 with UHF 5 8 CNB153 35 n HE UHFI TITRE Eee or better Maximum frequency deviation seres 2 0 Modulation method modulation 3 4 Internal Touch Tone Board Decoder Squeich open The squelch open sensi tivity 3 to the value when the conditions to folk iow are met al When the frequency response of modulation is flat When the frequency deviation with the B key is 3 2 kHz When operation is made paging mode 777 777 d When signal is operated at the timing of 50 msec ON and 50 msec OFF for each digit of transmission code Downloaded by 3 5 Accessory Amateur Radio Directory Tone Squelch Board CTN520 www hamdirectory info Encader Tone frequency 1 870 250 3 Hz Tone frequency deviationwithin iSt eere im Output level with VOL 2 350 mv at 179 9 Hz Tone trequency distortion Decoder Open FILM ME 179 9 H2 Response UME 200 Sec at
52. COIL 1 BT 854 ALYSOOSOGR AUR COLL 1 51 RZ4000605 amp VARI CAF DIUDE HZ4000605R VARE CAP Drope 159153 11332156210 252213551524 255 9652 0553 0555 E c 532356010 2803356 E241 1x33358010 2509456 824 24000805 VARE CAP DIODE 0657 HzZ4000BO0SR YARI CAP DIODE 154212 IYZ0508LAQO 5 5 52 lZ4900605R DIODE 15Y153 1133456010 25C33565 R24 0858 9669 23 H rU hen d zd a mpi sat 5 Th une t rath a a ce 8 Tone Squelch unit O 10 46 REF 71 REF 7 PART DESCRIPTION PART DESCRIPTION d 394112 0019 SQUELCH P C BOARD 112X122010 ADHESIVE FOR CTN520 BOARD C801 11 0596223208 0 022 10 9510901190 MONTHLY PRODUCTION LABEL caoz RCOSTEQOER TANTAL CAP 4 7 UF B 3WV 112X851210 USERS MANUAL 593 1 KCOSTXOOIR TANTAL CAP 4 7 UF 6 3N T 112X801010 PACKING CASE C604 1 0095470300 47 PF 51 112X805010 HASTER CARTON deed 4T 54 9011010010 POLYTHY BAG i3 Y05040050 TRIM RESISTOR 500 KOHM Phony
53. D 2520 DRG622320H DRS5222320R DES95223220R DESE22320E DkSg amp 103200 00951601300 795162300 DEI DEBE 102400 bis565102300 DkS6EIO0Z300 0091100300 0091100900 0091100200 0091100100 0091100100 ORI LOTITO 109 1100300 pkan taag TOZ FO 08 96107709 DK36102300 FOSDOZO0TER IICIOZORUGR kz03104322 O50 BCIOTES O56 BALDOO2Z20R 11720018055 1220012958 Hz2001205 amp R Hz200lI205 R Hz20012055 E 2000420HR KX05470610 HHS ITTF 3 EO HHS 3610 5104619 NH05102610 5 TANTAL CAP 10 VF SG FERRITE BEAD FERRITE BEAD Lio DRIVER LCD LFT53104 DIODE HC 2844 TEAMSISTOR RTIP4AT1M DIODE 4 51 mus moe eee 1 1 1 1 1 1 1 1 1 1 1 1 1 PARTNO HNOSIOSSBI KNOS4T2516 HRES 25 10 5 05103610 05102610 5 02610 MROGSIOG2610 NRHOSZ2J6194 HNOS223610 HNOSZ23511 01223610 5102610 223610 KHd510261
54. D SMU STU SIFY PIT FUNC MUTE BZ BST TEU 5851 50 SCK UL Table 4 2 Description High Output of output data control signal to touch tone decoder IC 0901 High Output of power down signal to touch tone decoder 0901 LCD driver Q101 chip select signal output Low UHF LCD driver 0102 chip select signal output Output selection between VHF and UHF of IF detection signal ta touch tone decoder Q801 High VHF Low UHF Serial data output to LCD drivers 0101 0102 and touch tone decoder 0901 Low Microprocessor reset Ceramic oscillator connection pin Ceramic oscillator connection pin Data clock signal output to LD drivers 0101 0102 and touch tone decoder IC 0901 UHF squelch operation High Operation Low Non operation VHF squelch operation High Operation Low Non operation Low Reception of UHF or VHF or both Keyboard data line Low When squelch OFF button is pressed Low When lamp button is pressed Low VHF button is pressed Low When UHF button is pressed Diode matrix line VHF squelch input signal High Squelch non operation Low squelch operation UHF squelch input signal High Squelch non operation Low Squelch operation Ground High When CALL button is pressed High Operation on regular power Low Power backup 2 High The UP signal when the rotary channel selector 15 rotated clockwise 15 subject to signal counting
55. HF Of the audio signal from the pin 11 of 0240 its 455 kHz component is removed a low pass filter R283 C256 and a squelch adjustment line is set by squelch control 285 Subsequently the noise component alone is extracted by a high pass filter C258 R287 C259 andis applied to pin 12 The noise component amplifiedin Q240 is output from pin 14 then rectified in 0241 into a DC voltage and applied to the pin 15 of 2201 At this time when the DC voltage at pin 15 16 0 7 V or more the squelch signal from pin 16 becomes low so that the squelch operates whereas the DC voltage at pin 15is less than 0 7 V the squelch signal from pin 16 becomes high so that the squelch does not operate The squelch signal from pin 16 is input to the pin 24 of 201 for use in control over a feature operation UHF Of the audio signal from the pin 11 of 0249 its 455 kHz component is removed by a low pass filter 339 C296 and squelch adjustment line is set by squelch control 9341 Subsequently the noise component alone is extracted by a high pass filter C298 R342 C299 andis applied to pin 12 The noise component amplified in 024915 output from pin 14 then rectified in Q250 into a DC voltage and applied to the pin 15 of 1231 At this time when the DC voltage at pin 15 is 0 7 V more the squelch signal from pin 16 becomes low so that the squelch operates whereas the DC voltage at pin 15151855 t
56. Isr 045 A RESIS 25C3429 25c4249 2565 25 05MMHz DET TX POWER TX YOUNGER BUFFER Be 0433 0437 0431 155239 M5TT87MA 25 3367 cu TX L Tus ty 0441 gaa MS RTINTA4OM 25415911 Ro 7 JACK JACHKLV UE SPE 525 MIC PWR ur LOCAL MIX SQL S METER zso TkKaDAZ M GPSS 2253 2 114471 METER AUD 10 0256 end LOCAL Mik 5b 5 Qal 3 METER DET INVERTER 21 3545MHz _ TCaSESF EZ MUTE TONE SEUEL CH OPTION BATTERY 2 12 e RTIPA 34M VAT Peso mum PRO cm mm ca c s cam ee Ex TERM IN AL o PES 2 E o T 0226 z zra p Li agag PET z23 E pare 58124046 i FMWI j 4205 w GOR 2 03 LCD DEEP AY LCD LAMP
57. KROMH if lew 4 531 KOHH LIGH 51 00 l I6V 51 6 DIM 1 164 LCD LANP LCD LANP 10 RON 1 7 KOLA KOH KON 1 K H 22 22 ROHH 22 22 1 1 1 KOS 1 KOLA 33 100 DII 1 BOARD 0 001 UF 10X AT PE 5 TAHTAL CAP 10 0 047 UF 104 TANTAL UF fe 31 0 001 UF 10 UE 6 6407 C408 498 410 6411 6412 C413 C414 C415 C416 CATT C418 C418 C420 C422 C424 C425 GAZE LAZT Caza c4z9 C434 C436 C4348 C439 Cad C441 C447 C143 C144 6445 6446 C447 C4146 C14 6450 C152 483 4 8 Cio C458 6453 C469 CARI C463 C464 6455 CAGA 6411 MM MMMM 9 ma dL GL Se ene Se See DKSEAT2300 REF IDESIG min PART NO DESCRIPTION 0695102300 11900030 0095270300 009510 135 009556036 amp 01096102500 0096102300 0630050300 Dk45224200 K6087X002R PES GATIZOD FORE 2096102300 24
58. R HFIUT510BACI 1 036102300 0 001 104 EZZ rogaz GH DINIE DKGG 2370R 0 022 4 104 DIODE 96 01 OF 1 l21800220 amp DIGITAL TRANSISTORE ETIPAALM DK45224200 6 22 OF 4a 2 LE 011 1 TEAMS ISTOR DX56683206R 6 068 UF 104 BA2000120 amp DIGITAL TRANSISTOR ET1NAATE 1 DES51I03200 D 01 UF 3 101 Huz20003z k PDLODE MC2BAE 1 0 296 OF 4 104 uz2000320H DIODE MC2846 1017 DIODE 1 0k584732300 0 047 UF 4 101 Ezzgogds20R DIODE 21 PART NO BAZUOIBSZIR 8BA1000124R BATIOOGUAJZOR 1 BA2001 AZ21R B 100052110 HC YI HOTS SAT EZZ b g420R EESTI OR BAZUDOUSZOR IIc880604523R BAZOD3IZIH D429031218H lIXI39BEIZ2186 BAZODJAII2IH WERPOTSE LAG BA20031218 11207981140 BAZO0031211 RE 1 218 15207098140 520004208 2002121 HDZOUZBOLR HC10012420 1200006020 8425003121 amp 2000960 20 Hzz20020420F l 101441AR 241541 BAZODJIZIR 1772007061020 PAZTOGILZIR 1220006020 HYlOl441AR 1 HX341541AR nc1oto 70850 1 10185050 HCIGZS405R 10925405 HG1025405EH 010057098 230750050 BA20032211 2
59. RKING CAPACITORS SHO RESIS TORS AME ALL 3 9 CTN520 COMPONENT OVERLAY AND SCHEMATIC DIAGRAMS OF SQUELCH BOARD Downloaded by Amateur Radio Directory www hamdirectory info LOO 01 A Eg tr 5 pajdaaoe 9401 uyn x i 1 re P T m z C 00 m Ps H2 IHZOKISHI E MHI 4 V ato CaO UG cux 23422 xac 3 5708 825 34 KEKEN T 3B t z CBO3 4 7 6 3V 100 0 AEG p Woy saBueus sr usu 0804 RTIPAAIM 2 TITISA CRII 4 T 6 3V i L 1 ri j E x ra i 1 La ETE 1 i ri ess E AW CO s am wr ee cU N ag Q v JJ 95 94 Ages 1 LI LE 4 cu d M 4 e e PIC a at ma m e We ayo 1 x C 9 2 GC A 3 2 po e ul d C o var zn g lt wt merr oo SHOLSIS3H ONY 0
60. T 9433 1 HC10057200 H57T79784 ALOSO0SOGR AIR COIL 1 5T Q434 1 220027058 DIODE 155229 BLOUSO0SOUR AIE COIL ST 0435 1 Bz2091721 amp E DIODE 16135 L NL0U3O050GR AIR COIL 0436 MEZOOITZIR DiODE 1151535 l RL0306052068 COIL 1 5T QAJT 1 2000320 DIGITAL TEANSISTOR RTINIALM 102005068 AIR COIL E 5T DLODE l 81035008008 ST 1 IC10058210 FASI 1 L S3018T4R ANTENNA COIL 1 nz3001105R ZENER OULODE 0267224 1 1021680010 CHIP COIL 6H KH QAAE 1I mx11152140 ZSALIGZ CR 1 FC8n02002R BEAD 4142 1 842000220R DIGITAL TRANSISTOR 1 4030050JR COLL 3 57 Q443 i HX341541AR 25 6415414 L 60011902010 COIL UH 5 102619 KOUN 1 1659 4 54 FOSOGZGDZA FERRITE BEAD 5223 610 22 4 514 FERRITE BEAD 1 MHOS 105610 1 IXEN 51 I LOVIOZOITR CHOKE COIL 1 Ud R404 1 KHOoB5f UIGIC 100 OIN 1 1 E 54 KLOS0050JR COIL 3 457 EATS 1 58054716120 470 OUR 4 514 1 ALOSOOSOGR AIR COIL 3 57 405 1 HNOSATIGIG DHH LEES 54 1 92005065 ATR COLL 1 57 R407 5 5 15 1 168 ras HLOAGOSOUR ATH COLL 2 57 1 NK0S222510 2 2
61. TA R426 1 HNOSIO3810 10 IFIED 4 51 1 220003208 DIODE MC2846 4427 1 H805222610 2 2 ROIN 1 16W 4 55 L DIGITAL THAHSISTOR ETIPAALM 1 4K05473610 47 HOHH L 1GR 54 L I 203021BR 25302012 R420 1 47 4 54 HIT203021AR8 25E302 Y1 1 NKHOSA73510 47 1 I1GW 4 51 1 FX327141C amp 2502714093 RAJI KNO05223610 22 KONA 17169 4 51 1 25C25E34R341 R132 KFNUSIOZGIO 1 LIGE t 59 L mIx33429018 2563429 133 1 5150610 15 OWN 1 168 5 L 124245001 2564245 1 NKUS102610 1 KOIN 1 168 5 1 1229017058 DIOBE 155741 NK05563610 5 6 KOIN 1 168 5 1z33429018 25C3423 1 NNO5102610 1 1 15M 5 H33424500R 25CA245 R437 1 NMOS5103510 10 LILEK 5 1 285C2714 T R46 KNOSIOIGIU 100 OIM 1 16 5 i Z20025DB5R DIGDE 155309 139 WHOSOOOREO 0 1 16H E HZ2001705R DIODE 155241 440 MNUS102510 1 OHH 1 I5M 55 32053400 25C2053 41 1 t 1 104 L 2 1 105102119 1 1 108 4 51 11200172118 R449 1 HI 05472110 4 7 5 812001721 PODE ELS135 R44 1 15 KOAK 1 I6U 4 51
62. W 5 HNOSIS46510 150 KOIN IFN 4 514 HROSESAGIO 150 KOIN 3 54 8287 5 470 1 159 05222610 2 2 TFT 4 55 1 1 i 1 1 1 i 1 1 1 1 1 1 L 1 1 1 R295 L NHK05474510 470 LLEN 5 1 1 i 1 1 1 1 1 1 1 i 1 1126 NKOS0O0CGIO 0 1 169 680 TIFLE 59 R327 05223610 22 1 164 5X ELE WAGSATAGIO 470 KOIN I 1GW 5Y Raza 100 GUM DI I5M 5 390 HNUSIOTAIO 100 1 168 5 23 PART DESCRIPTION HN0OS523338614 9 1 168 VARIABLE RESISTOR 500 DESCRIPTION 4208711752 ROTARY CHANNEL SELECTOR BOARD KHOS4TIBIO KkY0l1020050 L 165H 51 VARIABLE RESISTOR RAGS 1023610 HYOIO20050 VARLAELE RESISTOR NN ST24510 NEKUSZO4G6IOU NKU523185110 152519 hN05 64610 FIRK 51 HHO TIE 4 5
63. ansceiver to 13 8 V DC and set the RF output to the high power mode Key the transmitter and adjust R227 that the output power is 5 2 At this time check that the current drain is between 1 2 and 1 5 A Set the RF output to the middle power made Key the transmitter and adjust R228 so that the output power is 2 8 W At this time check that the current drain is between 900 mA and 1100 mA Set the supply voltage of the transceiver to 6 0 V and set the HF output to the high power mode key the transmitter and check that the output power 15 more than 1 2 VV set the supply voltage of the transceiver to 13 8 V DC and set the transmission output to the high power mode Check that between 430 000 MHz and 439 950 MHz when Key the transmitter the difference between maximum and minimum in RF output level is within 0 5 W VHF RF Output NOTE Be sure to perform the VHF transmission output alignment after the termination ofthe UHF trans mission output alignment Setthe supply voltage of the transceiver to 13 8 V and set the RF output to the high power mode Connect a voltmeter to the antenna connector and set the channel frequency of the transceiver to 145 990 MHz Key the transmitter and adjust R497 so that the output power 15 5 2 At this time check that the current drain is between 0 9 and 1 25 setthe RF output to the mid power mode Then check that the output level is between 2 2 W and 2 8 W
64. ck PLL IC data clock signal PLL IC data signal UHF PLL IC data strobe signal VHF PLL IC data strobe signal W402 1202 5 0 DC for UHF transmission TX power level line 4 0 VDC for UHF transmission Line passing the power switch UHF 23 05 MHz IF line Ground VHF speaker line Internal speaker line Speaker ground Speaker switch Low to High when SPU terminal is plugged UHF speaker line Microphone line 4 8 2 Built in Touch Tone Board Touch tone signal output line AFD Touch tone IF detection signal Input line 5 0 V DC line Touch tone encode shift register enable signal Touch tone decode output data control High Enabled Touch tone decode power down signal High Power down Touch tone data line Touch tone decode detection signal line When detected High j Ground Touch tone encode shift register data signal Touch tene encode shift register data clock signal 15 8 Description ae SR TRL ee Terminal ALL CALL signal line High to Low when calling Keyboard data lines Bur Keybaard data lines i Touch tone data lines KD3 DV LCD driver command data signal UHF LCD driver chip select signal CSLV VHF LCD driver chip select signal High to Low when PTT button is pressed _ Microphone line LCD driver
65. f the transceiver to 439 950 MHz and check that the first image ratio is more than 45 dB mi g h NOTE If out of standard reperfarm from step k Set the channel frequency of the transceiver to 435 050 MHz and check that the S N ratio is more than 44 dB With the SSG output level set to 20 dBu adjust R333 50 that the reading of the signal meter maximized mj Check that when the reading of the signal meter is maxi mum between 430 050 MHz and 439 950 MHz the SSG output level is between 16 dBu and 24 dBu VHF Sensitivity Hotate the VHF and UHF squelch control knobs of the transceiver fully counterclockwise and clockwise respec tively set the channel frequency of the transceiver and the 5565 frequency to 145 390 MHz The 555 signal shall be subject to standard modulation Connect the speaker plug in to the SPV terminal VHF external speaker jack Connect a voltmeter to TP6 and raise the 550 output level 50 that the voltage at TFE becomes about 0 5 V DC set the channel frequency of the transceiver to 145 990 MHz and adjust L408 L409 L410 L411 and L412 in this numerical order so that the reading of the voltmeter is maximized At this time check that SINAD is less than 9 5 dBu set the channel frequency of the transceiver and the 550 frequency to 145 500 MHz Then with the SSG output level set to 20 dBu adjust 8277 so that the reading of the signal meter is maximized e b m
66. han 0 7 V the squelch signal from pin 16 becomes high so that the squelch does not operate The squelch signal from pin 16 15 input to the pin 24 of Q201 for use in control over a feature operation 4 3 6 Signal Meter Circuitry VHF A part of the signal from the pin 6 of 0240 as the signal meter signal is applied to semi fixed resistor R277 and is amplified at Q242 The signal meter signal thus amplified is converted into a DC voltage at 01243 and is applied to the pin 32 of C201 after which it is A D converted and then works for the signal meter on the display UHF A part of the signal from the pin of Q249 as the signal meter signal is applied to semi fixed resistor R333 and is amplified at Q242 The signal meter signal thus amplified is converted into a DC voltage at 0252 and is applied ta the pin 32 of Q201 after which it is A D converted and then works for the signal meter on the display 4 4 Transmitter 4 4 1 Microphone Amplifier and Modulation VHF UHF The sound after being converted into an audio signal through the internal or external microphone is applied to microphone amplifier 2261 for amplification 2261 consists of an single stage of an operation amplifier including a pre emphasis circuit The audio signal thus amplified is input to the low pass filter consisting of an single stage of an operation amplifier By the low pass filter in 2261 attenuates audio frequency of more than 3 kHz by 18
67. mission mode with the microphone plug connected in to the external microphone jack c Press the CALL button and emit the burst signal di Adjust R392 so that the frequency deviation is 23 5 kHz Check that the tone burst frequency is between 1 730 Hzand 1 770 Hz the frequency deviation is between 3 2 kHz and 3 8 kHz and the distortion is within 7 VHF Tone Burst set the channel frequency of the transceiver to 146 000 MHz Engage the transmission mode with the microphone plug connected in to the external microphone jack Press the CALL button and emit the burst signal di Check that the tone burst frequency is between 1 730 Hz and 1 770 Hz the frequency deviation is between 32 kHz and 23 8 kHz and the distortion is within 7 e 3 Specifications Unless otherwise noted the following specifications apply to both UHF and VHF bands for the C528 3 1 General Specifications Transmit receive frequency range E CARE Ea M VHF 144 000 to 147 995 MHz WHF 430 000 to 439 995 MHz Step 5 10 12 5 20 25 Modulation us scere eR wei TES Nominal VOS 2 TANDE Input voltage range t esee 3360 with external voltage jack Current drain Transmit 13 8 V DC Hi Hi 5 0 Approx 1100 mA VHF Approx 1300 mA UHF Mid 2 5 Approx 900 mA VHF Approx 1000 mA TADC Approx 850 mA Approx 1000 mA HF Mid
68. ne squelch signal is autput to the SOTV pin When the tone signalis in agreement the pin 17 of 0801 becomes high Thereby the SOTV pin goes oper so that the squelch turns OFF When the tone signalis not in agreement the pin 17 of 0801 becomes law Thereby the SOTV pin becomes high sa that the squelch turns WHF From the pin the UHF IF detection signal is input to the pin 27 of 0802 and 0804 is switched according to the output of the pin 17 of 0302 so that the tone squelch signal is output tothe SOTU pin When the tone signal is in agreement the pin 17 of 0802 becomes high Thereby the SOTU pin goes open so that the squelch turns OFF When the tone signal is not in agreement the pin 17 of 0802 becomes low Thereby the SOTU pin becomes high so that the squelch turns 4 7 2 Encoder VHF The tone signal after output from the pin 18 of 0801 is emitted to the TONEY pin through semi fixed resistor UHF The tone signal after output fram the pin 18 of 002 is emitted to the pin through semi fixed resistor 8802 48 Terminal Description 4 8 1 Transceiver Board 1201 4 0 DC for VHF reception VHF 21 80 MHz IF line 50VDCline 0 VCO modulation line _ VCO modulation line UHF TX VCO 4 0 V DC line UHF RX VCO 4 0 VC DC line 5 0 V DC line for VHF transmission VHF TX VCO 4 0 V DC line Unlock signal line High when unlo
69. ng its AF frequency response of less than 3 kHz by the deem phasis circuit A307 C272 R308 C273 is applied to muting circuit Q246 The output of 0246 is volume controlled by AF volume control H312 and is amplified at audio preamplifier Q248 for driving speaker E101 after which it is applied to the pin amp of audio power amplifier 0256 1 2 for amplification UHF The audio signal output from the pin 11 of 0249 after making its AF frequency response of less than 3 kHz by the deem phasis circuit R358 C313 A359 C314 is applied to muting circuit Q253 The output of Q253 is volume controlled by AF volume control RIEZ With the speaker plug unconnected in to the SPU terminal WHF external speaker jack the signal is amplified at audio preamplifier 0248 by way of analog switch 0254 after which itis applied to the pin of audio power amplifier 0256 1 2 for amplification At this time VHF and UHF sounds are heard from the speaker at the same time With the speaker plug connected in to the SPU terminal UHF external speaker jack the signal ts amplified at audio pream 0255 with analog switch 0254 OFF after which it ts applied to the pin 7 of audio power amplifier 0256 1 2 for amplification At this time the VHF audio signal is output from the terminal VHF external speaker jack while from the SPU terminal the UHF audio signal is output thus in a UHF VHF separate manner 4 3 5 Squelch Circurtry V
70. o ON Turn ON the tone squelch and set the tone frequency to 67 Hz Set the channel frequency of the transceiver to 430 050 MHz Then check that the tone frequency deviation is between 20 5 kHz and 40 9 kHz and the distortion 15 within 1555 lf without adjust HB02 so that the deviation IS 20 6 kHz set the tone frequency to 250 3 Hz Then check that the tone frequency deviation is between 20 5 kHz and 0 9 kHz and the distortion is within 15 VHF Tone Squelch Board CTN520 Install the tone squelch board into the transceiver after which set the pertinent switch of the transceiver to ON Turn ON the tone squelch and set the tone frequency to 67 Hz set the channel frequency of the transceiver to 145 990 MHz Then check that the tone frequency deviation is betweent0 5kHzand 0 9kHz and the distortion is within 15 If without adjust RBO so that the deviation is 0 75 kHz set the tone frequency to 250 3 Hz Then check that the tone frequency deviation is between 0 5 kHz and 0 9 KHz and the distortion is within 1595 TONE FREQUENCY 67 0 97 4 136 5 71 9 100 0 141 3 b r C 2 gt Table 2 1 74 4 103 5 146 2 77 0 1072 1514 75 7 110 9 156 7 82 5 114 8 162 2 85 4 118 8 167 8 88 5 123 0 173 8 31 5 127 3 178 9 94 8 131 8 186 2 UHF Tone Burst a Set the channel frequency of the transceiver to 435 000 MHz b Engage the trans
71. o the DO to D3 pins 4 6 2 Encoder The serial data output from the pin of 0201 is entered to the pin 2 of amp stage shift register 0902 The serial data thus entered is converted into a E bit parallel form and output from pins 4 to 7 and 11 to 14 The parallel signal output from these pins is input 1o the pins 4to6 10 1210150 encoder 0903 after which the signal corresponding to the input data is emitted from pin 17 1 UHF reception Far VHF reception 14 4 2 Description Power supply to UHF VCO for transmission Power supply to for transmission For UHF transmision For VHF transmision Power backup Data strobe signal output to UHF PLL Data strobe signal output to VHF PLL High Latch up Law LCD back light lights Power supply pin positive approx 4 3 V Power supply pin positive approx 4 3 V DC Low For high power operation of transmission Low For middle power operation of transmission LCD drivers 0101 0102 command data signal output High Audio power amplifier ON Tone squelch VHF tone data strobe signal output Touch tone encode shift register 0902 enable signal output Low Operation on regular power High Latch up 4 7 Tone Squelch Board CTN520 4 7 1 Decoder VHF From the AFIV pin the VHF IF detection signal is input to the pin 27 of 0801 and 0803 is switched according ta the output of the pin 17 of Q801 so that the to
72. ompact microphone speaker 153 CHP111 Headset with PTT button CWC151 AC charger for CHB152 113 Tiepin microphone Desk top charger Rapid charger CAVW 151 Base station power cable CAW150 Mobile power cable CAXO02 Bottom cap 2 MAINTENANCE 2 1 Disassembly Turn the power switch off and remove the battery and antenna before disassembly and reassembly 2 1 1 Bottom Cover and Front Case Bottom Cover Remove the two screws and detach the bottom cover then remove the two screws B fixing the front case Figure 2 1 Front Case Open the front case in the direction of an arrow and discon nect the connector Figure 2 2 2 1 2 Display P C Board Remove the six screws D and two screws and you will be able to disconnect the display P C board Figure 2 3 2 1 3 AF and RF P C Boards Remove the four screws then the four screws GJ four spacers and five screws and you will be able to disconnect each board Figure 2 4 2 1 4 Accessory Tone Squelch Board CTN520 Turn OFF the power of the transceiver and install the tone squelch board to the transceiver by two accessory screws b Plug the connector of the tone squelch board securely into the socket of the transceiver Fiqure 2 5 Warm up the instruments for at least 30 minutes before use Standard mod
73. ted total four VCO members two for VHF transmission and reception and other two for UHF transmission and reception Each VCO oscillation frequency is determined by the information from the micro processor During reception a VCO oscillation frequency 15 lower by 21 8 MHz than the display frequency in case of VHF and lower by 23 05 MHz case of UHF During transmission a VCO osciliates just at the display frequency whether VHF or UHF 10 The PLL local oscillation frequency ts made VCO Q603 for reception and by VCO 0608 for transmission The output signal of either VCO is input to the transmission or reception circuit Part af this output signal is applied ta the input pin 8 the prescaler of the PLL IC by way of switching diode Q605 and is thereat divided into 5 kHz tunning step 25 kHz by a programable counter into 6 25 kHz for tunning step 12 5 kHz The PLL reference oscillation frequency which 15 12 8 MHz due to X401 and 0405 is divided into the reference frequency of 5 kHz lor6 25 kHz by programmable counter 0401 This ref erence frequency is phase compared with the former 5 kHz B 25 kHz at phas comparator 2402 That phase difference is output to pin 5 from which it is then applied io the PLL loop filter low pass filter Thereby removing the 5 KHz 6 25 kHz component it is converted into a form of a DC voltage which is in turn applied as the control voltage to vari cap diode 0691 and Q602
74. ulation 63 5 KHz at 1 kHz General Conditions RF dummy load ease el S m EI 50 0 Ajustment frequencies Note Of RF alignment the audio output 1510 Receive frequency 45 990 2 WHF 435 000 MHz Supply voltage POS meer Transmit frequency 145 990 MHz Audio output erp LN a 75 mw UHF 435 000 MHz gt e FREQUENCY COUNTER RF GUMMY LO AE COT OSCILLOSCOPE POWER SUPPLY TO ANTENNA CONNECTOR 1 JACK 7005 or lt lt Uo AFDUNMM Y LOAD Tr ANTENNA CONNECTOR 5 3 1 TO SPEAKER JACK Figure 2 7 Receiver test set up POWER SUPPLY 13 8V c 9 B3 k Figure 2 8 Ground cable running for transmit power alignment eae E 2 3 Alignment Reference Points PRO RF BOARD PAG AF PC BOARD PLO DISPLAY BOARD PDO TMF J Figure 2 4 24 Alignment and Performance Check 241 Power Supply 4 5 V Regulator a Apply a supply voltage of 7 2 V DC to the transceiver and set the power switch to ON b Connect a voltmeter ta and check that the regulator
75. y of alow pass filter an antenna switching circurt and a pass filter in the duplexer is supplied to the antenna In the transmission output adjustment by R227 the high power is set to 5 0 the mid power is to 2 5 VV and the low power is to 0 35 VV 443 Automatic Power Control Circuit VHF part of the RF output to a low pass filter L406 C550 C435 C434 is detected by diode 0429 and converted into a DC voltage The detection voltage converted into a DC voltage is input to the APC circuit Q439 0440 0441 0442 The detec tion voltage to the pin 1 of Q493 controls the APC voltage supplied to the VHF VCO by way of 0440 0442 and Q441 to keep the RF output constant UHF A part of the RF output to alow pass filter L415 C539 C460 C581 is detected by diode 2434 and converted into a DC voltage The detection voltage converted into a DC voltage 15 input to the APC circuit 0439 Q440 0441 0442 The detec tion voltage to the pin 1 of 483 controls the emitter current of younger amplifier 0432 by way of 0440 0442 0441 and 0443 to keep the HF output constant 4 5 Control Section The 1 0 port functions are as follows 4 5 1 Microprocessor 0201 Ooo oo Symbol OE CSLV CSLU LCSO RESET LCCK SQCU SOCV _ RX LED KD3 BUSY KD2 KD1 SQOF KZ LAMP VHF UHF ITAA MTXI SOLV SOLU VSS CALL BACK UP E
Download Pdf Manuals
Related Search