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TKR-850 REVISED

Contents

1.
2. 8144 4 amp 7 43 08m 04 0154 05 TX SWITCH ere 27 112 12 22122224 UNIT A2 SUB UNIT TX VCO PLL X5
3. P ce ce eC81 470p exC83 CIRCUIT DIAGRAM 850 11 872 MAIN DC B1 GND BACK UP BATTERY one GND T ee L 3h R FINAL UNIT X45 3630 XX A 2 1 ogo B se se se MS 3 ml 4 d gas SFS 97 085 Hrs Br 220 e o wth 5 a Jl sh a ejo x 5 777 777 o f n eub i ERE SL U 7 38 e e ofl 01010 in m m olan i5 ENLO amp o 49 M ms Ou LSU TX DRIVE AMP UTS eGo 515 Tu 7 gt 04 77 FINAL 77 D3 R OV gt 2SK3075 SURGE ABSORPTION eL4 o 17 14exC210C23 156031 5 42 61 lt 2 a
4. HINT TOUT1 nM C722 0629 0614 eD618 eD621 eD624 eD625 5 4 DSP HDS2 C684 100p R713 DA204U DA204U DA204U DA204U DA204U DA204U 01010100 gt 5516 R683 120k R719 27k 10410 sre 5 618 100 729 i 320VC5402PGE tps R717 47k CN605 U 1 10010 40 5704 05 7 5 HRDY R718 47k 726 i N DVUDS C724 180p Es 1800p DC SWITCH 558 757 10010 0606 0607 0609 0611 0615 0619 0622 3 DA204U DA204U 2040 DA204U DA204U 2040 042040 2 0601 HDO 759 470p 3 1 DTC114EUA wf gt 2 Jo x C824 wh 2225 SPH T 1 92 52 es n sc 4700p TACK Hos esl Oa z FETI E 12 5 2 R630 47k BIL gt m m 5 R631 47 011 Lo E E 1 DC SWITCH INT N VOLTAGE me ron 1 REDUCTION 102 x d 103 lt 104 c822 R715 C723 1 603 606 Et 100p 10k 1u BUS TRANCE IVER SHIFT RESISTER 751 0 01u D608 D610 D612 0616 0620 0223 z 5515 DA2
5. Bin WIDE NARROW WIDEJNABEOW SWITCH 57 6270 T DAN235k 3 SWITCH exti W 4 91V A2 A3 c1 c2 c7 10 14 15 28 29 94 95 100 209 c210 c241 c215 c223 c224 L2 L3 L4 L5 L6 L26 L27 L28 L29 L30 142 L45 R1 Res R94 R168 R171 R172 R173 R175 R179 171 0513 05 NARROW N 0V 9 44 85MHz ome 10 x58 4810 10 58 4800 10 18 5p 2 4p 3p 4p 5p 10 10 10 No 100 179 1771 05 18 179 1771 05 L79 1771 05 15 122 118 180118 6 88 No o 4 7 100 o 1 5 Te e EM E RF AMP NARROW 11 58 4810 11 58 4800 11 4p 7 5p NO 4p 3p 5p 10 10 100 NO NO 179_1772 05 1151 L79 1772 05 79_1772 05 0n 15 18 18n 18n 18n 6 8n 4 7 82 NO 0 o 2 2 5 12 58 4810 12 58 4800 12 3p 1p 7p p 4p 7p 11 5p p 4p NO 5p NO 179 1782 05 22n L79 1782 05 L79 1782 05 12n 22n 22n 22n 22n 22n 18 18n 3 9 100 270 0 390 E SERT ban T
6. SURGE ABSORPTION gt 0 1 44510 U TT TXD RXD DISPLAY UNIT X54 3330 20 A 2 m in m gt gt gt gt gt gt gt 2 2 n VOLTAGE S REGULATOR 1 5 1 5 6 TA78LOSF x Q m 206 NSO 1 5095 NOR 0506 LA 501DD 0523 yon 20 60507 LA 501DD UPA672T 5502 5503 5504 5505 5506 520 0 014 in a i olalj n afjd 5 77 77 x lt AO SHIFT ON H re 777 505 tli 19 19 10 D RESISTER IC BU4OS4BCFV U U 18 U x usa 2 05 8 21 imi hy FH BU4094BCFEV 2 ul om uU DC nme 7 SWITCH 8 2 VOLTAGE REGULATOR 777 5 DC SWITCH DC SWITCH 6 10507 SWITCH Hs 4 TA78LOSF e9512 0513
7. INT SP CN18 Q UNIT UNIT A 2 5 62 X57 62Y7 xx MT MAIN DC CN15 6 2222 oc 58 2 T V We CN602 lt oo E E A gt 2 1 12121 DISPLAY UNG T A 2 82 lt lt e gt gt lt __ 8V AVRL 12 BACKUP e 80 3 3 BATTERY X54 E NC e NC BACKUP 3 3V AVR SB e SB 26 58 SB 15V 6 UN FINAL UNIT 58 e 7 45 363 9 NC CN16 CN3 L 3 3v 4 NC 8 1 363 EN VTH 20 RD NE lt AVR BAT d SV AVR 58 SB MO PDT PDT BS me 1 86 FAS lt AVR 1 4 je MB I gt lt lt NC GND GND 51 NC SOE 50 SV AVR PSW DAT TEMP TEMP RSW RSW p PSW PSW o PSW is ras PP 3 dun 2 STB1 e BUP SUB UNIT lt 5V AVR 102 02 CNS FIIO SOE Fwo e RX VCO PLL TXD4 STB4 HOOK RXD gt X K1 E X58 480 lt gt CK e 2 CN19 CN1 K1 RXD4 DT le C K3 K2 Lot 7 TX ANT p i t e LOT Lo 7 LOR e LDR KS K4 EPT EPT
8. GND 12 BC4 VIN lt C701 4 10010 e vout7 C699 10910 EM VOUTB NIN NIo o olo 702 10410 92772 827 751 2128 28 29 eCN606 Bed VINE 22 10 22010 0 40 5960 05 ojefej Te o NT D SUB 83 8 0 RM 8 C773 828 752 2 2410 2 2440 0 TXI C715 0 01 u 40 5701 05 oM uM a 1 oM M a a oM M a a1 I M a aM IM M a M uM a au oM M a aM IO M a a MM a 1 M M a a oM M a aM OM M a aM I uM a u ou M ua au oM M a au oM M a aM Ou M a a M M a a M M a a OM M a i i M MM a i i M M a aM OM M a aM OM M a aM IM Mii Iua aM 0600 606 625 629 DA204U Q600 602 604 2SK1824 1C 00 2408 10512 5 1604 30622M4 113GP 1 609 29 020 90 1615 62364 1 620 ADM202EARN 1 625 626 XC62FP3302P D601 25111 0601 603 605 609 611 DTC114EUA 1 601 RHSVL42C 1605 BU4053BCF 1 612 TC7SO4FU 1 618 320VC5402PGE 1 621 TC7SOOFU 1C627 628 630 TA78LOSF 83 0626 MINISMDE 190 0606 DTC363EK 1C602 623 BU4094BCFV 1C607 611 616 617 NJMA558E 1C613 TC74VHC4040FT 1c619 TC75W51FU 1 622 TC7S66FU 0627 628 155355 0610 251506 5 1C
9. NM SUL NS DIE 1 C MC M EMEN 44 850MHz i 5 2 Cw 1 XCOZEP1802P 23 DANZ35K INT 2 RX ANT 1585 02 CN18 1625 1 628 CN14 25 3356 25 3357 as SRR i CN604 XC62FP3302P TA78LOSF i i WEN AE D W N AMP 25 3356 AX mE 9606 1 622 3 3D Be resents le ac Li 26 FSCS TC7S66FU 1 110 ag 25 3357 25 3356 1 629 12626 1 630 VEM 29 LPF H DAT CLK LA4422 XC62FP3302P TA78LO5F RSS RSSI SOE STB2 Ly i i 3 3A Display unit 0605 PLL rc3oo X54 333 B 2 Shift Reg 5 TDS DTC114EUA SA7025DK MIC JACK E 4 TEST SPKR lt TAS i i SC 0350 351 i 601 01 5 BU4094BCFV FcR DC _25K508NV K52 SPM 16827 0350 353 45 282 7 ide 2 i i i DTC114EUA TC7SOOFU m 21 1x1 NIMES SHE T6 PTT TXD 1 0626 5 AVR 7 744 395MHz 5 22521222 HK RXD CN6031 MINISMDE 190 APR 53 STT 011 i 05 07 Sw TX VCO 29C3356 R24 nes SB
10. CK73GB CK73GB CK73GB CK73GB CK73GB C740 C741 C742 743 744 746 ce Occ nmm C 0 ccc CK73GB1C 747 748 CC73GCH1 C749 CC73GCH1 F 750 751 CK73GB1C104 C752 CK73GB1E103 010 753 754 62 92 0628 05 755 CK73GB1C104 756 757 CK73GB1E103K C758 92 0628 05 759 CK73GB1E103K 760 92 0628 05 761 CC73GCH1H101J 762 763 CK73GB1E103K 764 765 CC73GCH1H330J F 766 768 CC73GCH1H101J C769 771 850 PARTS LIST TX RX UNIT X57 6270 XX Desti nation Desti nation P TAN 220 10WV L79 1782 05 LICAL BLOC P TAN 220 10WV L40 1575 34 ALL FIXED INDUCTOR 15NH i K L40 1875 34 ALL FIXED INDUCTOR 18NH P TAN 25WV L40 2275 34 ALL FIXED INDUCTOR 22NH PC i L79 1771 05 LICAL BLOC Address Parts No Description Address Parts No Description 92 0633 05 92 0514 05 CK73FB1C105 C92 0519 05 CK73FB1C105 73GB1H471K 73 1 105 K73GB1C104K 73FB1C C73GCH L79 1772 05 LICAL L79 1782 05 LICAL L40 1075 34 ALL FIXED INDUCTOR 10 L40 1271 34 ALL FIXED INDUCTOR 12 L40 1581 37 ALL FIXED INDUCTOR 0
11. 0 Fig 5 Receiver PLL 4 2 Transmitter PLL The transmitter PLL circuit is located in VCO unit A2 58 481 on TX RX unit X57 627 A 2 and consists of VCXO X3 VCO s 0350 K K2 E type 0351 type a single chip PLL IC 1 300 buffer amplifier Q355 and high frequency ampli ier Q302 The VCXO generates 16 8MHz The frequency stability is within 1 5ppm Temperature range of 30 to 60 requency tuning and modulation of the VCXO are done to apply a voltage to pin 1 of the VCXO The output of the VCXO is applied to pin 8 of the PLL IC through the pin 7 of he VCO The VCO oscillator frequency is 450 00 to 480 00MHz 480 00 to 512 00MHz K2 400 00 to 430 00MHz 440 00 to 470 00MHz E The oscillator frequency is controlled by applying the VCO control voltage obtained from the phase comparator to the varactor diodes 4 3 Unlock Detector Circuit If a pulse signal appears at the LD pin of IC300 an unlock condition occurs causing the voltage applied to the pin of the microprocessor to go low The names of this pin are LDT for TX PLL and LDR for RX PLL When the micropro cessor detects this condition the transmitter is disabled TX RX unit CO unit X58 481 rea a o a e a e 6 CP DP Fig 6 Transmitter PLL TKR 850 CIRCUIT DESCRIPTION 5
12. 850 WOO SERVICE MANUAL REVISED This Service Manual was revised based on the service manual as per parts No B51 8557 00 in order to include new variants with the following destination codes K3 Knob DC source K29 9106 04 Panel Outer Knob VOL A62 0840 03 K29 5389 03 KENWOOD Panel assy Key top Modular jack A62 0934 03 K29 5460 02 E08 0877 05 CONTENTS GENERAL 2 TERMINAL FUNCTION 49 SYSTEM SET UP 2 2 22 53 OPERATING FEATURES 3 PC BOARD VIEWS REALIGNMENT 2222 11 PLL VCO X58 4800 XX 55 13 X58 4810 XX 56 MODIFICATION enne 15 DISPLAY UNIT 54 3330 20 57 DISASSEMBLY FOR REPAIR 17 FINAL UNIT X45 3630 XX 61 CIRCUIT DESCRIPTION 18 TX RX UNIT X57 6270 XX A 2 67 SEMICONDUCTOR DATA 24 TX RX UNIT X57 6270 XX B 2 73 DESCRIPTION OF COMPONENTS 26 SCHEMATIC DIAGRAM 79 PARTS LIS Tucuman 28 BLOCK 91 EXPLODED VI
13. c 92 0628 C73GCH1H C73GCH C73GCH1H C73GCH 9 CC73G 736 7 CK73G CK73G BAA Og lt gt CO C73GCH 73GB1 C73GCH 73GB1 73GB1 CC73G CK73G CC73G 7 7 GG C73GCH 73GB1 C73GCH C73GCH C73GCH CC73GC CK73GB CK73GB 92 1341 092 0633 c0 c0 73GB C73GCH 73GB1H 73GB1H 73GB1H CK73GB CK73GB CK73GB CK73GB 090 4016 TET gt C2 73GB1H 73GB 73GB1H C73GCH C73GCH CK73GB CK73GB CK73GB 092 0606 CK73GB OO 73GB C73GCH 73GB K73GB 92 0628 92 0633 CK73GB CK73GB1H C92 0633 0 92 0008 0 CE C73GCH lt lt TKR 850 PARTS LIST TX RX UNIT X57 6270 XX Desti nation CK73GB 0 010U C657 CK73GB1E103K CK73GB 470PF C662 C92 0628 0 C92 0560 F C663 C92 0519 0 CK73GB 010 670 92 0003 0 CK73GB 0 C679 680 C92 0628 0 Desti nation Ref No
14. F10 2409 04 G CASE TX RX FOIL F20 3322 04 NG SHEET CC73GC CC73GC G02 0576 14 SPRING CC73GC G02 0829 14 SPRING CK73GB1H 607 0885 13 H SPRING CK73FB1H471 G10 1263 04 BROUS SHEET CHASSIS G10 1264 04 BROUS SHEET PANEL CC73FCH1H120J CC73FCH1H220J G13 1801 04 USHION ACC 73 1 0900 G13 1802 04 USHION ACC CC73FCH1H120J G13 1886 04 USHIO CK73FB1H471K PC PC PC PC PC I PC PC PC PC PC CO DO I H25 0029 04 ROTECTION BAG 60 110 0 07 C90 4016 05 ELECTRO 850 PARTS LIST FINAL UNIT X45 3630 XX Desti nation Desti nation 10 0 0 10 0 Address Parts No Description Address h Description CK73FB1E104K CC73GCH1H101J CK73GB1H471K CK73FB1E104K CK73GB1H471K 0 c0 CK73FB1E104K 93 0599 05 93 0558 05 93 0561 05 93 0563 05 C2 C2 C2 93 0563 05 93 0565 05 93 0565 05 93 0599 05 CK73GB1H471K PC PC PC PC PC C C lt gt CD C2 I OD BAA PC PC 103 93 0599 05 93 0566 05 93 0566 05 93 0562 05 93 0563 05 C9
15. 13 6 1590 Current Drain ene 0 8A Standby w power save 0 3A Operating mode DC IN Backup FAN Temp SAVE ON DISP OFF RECENO 1 2A Transmit Receive Less than 13 Duty Cycle RECEIVE 2 e e 100 TRANS S0 100 100 25W Frequency Stability Less than 0 00015 30 C to 60 C 229 to 140 F Antenna Impedance 500 Operating Temperature Range 30 to 60 C 229 to 140 F DIMENSIONS see eo etu 483 19 W x 88 3 1 2 H x 340 13 1 3 D mm inch 9 7kg 21 4 lbs RECEIVER Measured by TIA EIA 603 Sensitivity 12dB SINAD 2 0 35uV 2098 Quieting 0 45uV coto tnr Wide 83dB 25 2 Narrow 75dB 12 5 2 Interrmmodulation z Lb mte Wide 78dB 25kHz 50kHz Narrow 75dB 12 5kHz 25kHz Hum and Noise Wide 50dB Narrow 45dB Spurious amp Image Rejection 90dB Audio Output Ext Speaker AW at 4Q less than 5 distortion Audio Distortion Ext Speaker Less than 2 596 at 1000Hz Band Spread iit t s K K2 5MHz 3MHz TRANSMITTER Measured by TIA EIA 603 RF Power 40W adjustabl
16. RK73FB2A473J RK73EB2B100J RK73FB2A683J R92 1252 0 R92 1215 0 93 0560 05 93 0561 05 93 0555 05 93 0556 05 CK73GB1H471K C3 C3 0 c FB2A4 TKR 850 FINAL UNIT X45 3630 XX DISPLAY UNIT X54 3330 20 PARTS LIST Desti nation RK73FB2A563J 56K C502 503 C92 0501 05 RK73GB1J101J 00 C504 505 73GB1C104K R92 0670 05 00 C506 C73GCH1H470J RK73GB1J104J 00 507 508 73GB1C104K R92 1252 05 00 C509 73GB1H103K Desti N Ref Address 5 Description nation Parts No Description OWV PC PC PC PC 92 0670 05 00 C510 RK73GB1J473J 41K C511 512 RK73FB2A101J 513 518 R92 1252 05 H C519 520 RK73FB2A101J 92 0628 05 73GB1E103K 73G6CH1H101J T3GBTE 92 0628 0 P TA PC PC PC P TA C Oc 0c Q C2 92 0670 0 RK73GB1J R92 1252 0 RK73GB1J RK73GB1J 73GB1C 7 92 0628 0 GB1C AOOO R92 1217 R92 1317 RK73GB1J RK73GB1J RK73GB1J 50 GCH1H101J GB1H102K GCH1H101J GCH1H101J GB1C104K PC PC PC PC PC cc c RK73GB OK 40 6140 05 PIN ASSY RK73GB 470 40 6102 05 PIN ASSY RK73GB 41K 40 6141
17. TX RX unit X57 A 2 TX RX NV E Soo a ee ae 7 MCF Wide 44 85MHz IF AMP 1st MIX BPF RE AMP BPF 03 02 02 DBM 1 L4 L5 Q1 L2 lt Ro Ro E BY 4 RE EA WIN RX VCO 44 850MHz IF AMP IF AMP IF AMP 58 480 LPF 09 os 1 RSSI e CLE lt x 447 fRax 44 85MHz Ep NOISE DET PIN 4 395 2 a 455kHz bese Pemc H ar 4 unit X57 B 2 Control 222222222 1 614 LPF 1 f C608 IC619 2 1 619 A 2 10615 16622 0606 10829 P Ex RD IC604 5 cru RSSI Fig 1 Receiver circuit TKR 850 CIRCUIT DESCRIPTION 2 4 Audio Amplifier The audio amplifier circuit is located in control section of TX RX unit X57 627 B 2 The recovered audio signal ob tained from 1 9 is amplified 1 608 input to the AINR ter minal of CODEC IC614 and audio processed by DSP 618 The processed audio signal from AOUTR terminal of 1 614 is amplified by 1 619 B 2 to a sufficient level anti aliasing filtered by 1 619 A 2 The audio signal goes to an electronic volume 1 615 V3 V4 to the input of multiplexer IC 622 and is amplified to drive a loudspeaker by au dio power
18. gt 704 706 TKR 850 TX RX UNIT X57 6270 XX RX PLL VCO X58 4800 XX PARTS LIST Desti nation RK73GB1J473J JM4558E OS IC RK73GB1J102J 75501 OS IC RK73GB1J473J 29 020 90 ROM IC RK73GB1J102J C6 TA75S01F OS IC RK73GB1J473J C6 JM4558E 05 IC Desti N Address nation Parts No Description Parts No Description RK73GB1J102J C6 TC7SO4FU OS IC RK73GB1J473J C6 TC74VHC4040FT OS IC RK73GB1J102J C6 AK4550VT OS IC RK73GB1J473J C6 62364FP OS IC RK73GB1J102J C6 4558 OS IC RK73GB1J473J C6 RK73GB1J102J C6 RK73GB1J473J C620 RK73GB1J102J C621 RK73FB2A2R2J C622 20VC5402PGE PU C75W51FU OS IC DM202EARN OS IC C7SOOFU OS IC C7S66FU OS IC RK73GB1J473J C623 BUA094BCFV OS IC RK73GB1J102J 0624 XC62FP1802P OS IC RK73GB1J473J 625 626 XC62FP3302P OS IC RK73GB 627 628 TA78LO5F OS IC RK73GB1J473J C629 144422 POLAR IC RK73GB1J102J C630 RK73GB1J473J Q1 2 RK73GB1J102J RK73GB1J473J RK73GB1J223J 78105 OS IC 2563357 TRANSISTOR 25 3356 24 TRANSISTOR DTC144EUA GITAL TRANSISTOR DTA144EUA GITAL TRANSISTOR RK73GB1J473J DTC144EUA DIGITAL TRANSISTOR C D606 625 D626 D627 628 0629 12 3 C4 C5 C6 C7 C9 C10 C11 C600 C601 C602 C603 C604 C605 C606 RK73GB1J104J 576 0401 05 235 742 155355 235
19. 04 0154 05 SOCKET 40 5632 05 ASSY 40 3246 05 ASSY 40 5703 05 ASSY E23 0462 05 73F2H330J 73F2H360J 73F2H390J 93 0599 05 73GB1H471K C2 J13 0071 05 C73GCH1H101J 73FB1E104K 90 2143 05 C73GCH1H101J 73FB1E104K L40 3963 92 L40 1875 34 L40 2775 34 L40 4763 92 L40 8265 92 C c 90 2146 05 93 0599 05 73F2H360J 73F2H390J 93 0563 05 55 134 4602 05 134 4517 05 140 3975 34 140 6875 34 134 4517 05 93 0564 05 93 0565 05 93 0555 05 93 0599 05 CK73FB1H471K L34 4517 05 R CORE COIL L34 4523 05 R CORE COIL L40 1075 34 ALL FIXED INDUCTOR 10NH C C lt gt CD lt gt 73GB1J103J OK 73681472 GB1J470J 7 681 100 0 681 100 0 K73GB1H471K 73FB1E1041 73GB1H471K C73GCH 73FB1E1041 73GB1J682J FB2A100J ow FB2A220J ow GB 681 153 73GB1H47 73GB1H47 7360 73GB1H47 73FB1E1041 C2 29 62 FB2A220J ow 365 0 R92 1211 0 R92 1217 0 R92 0365 0 92 0777 05 93 0599 05 93 0555 05 93 0556 05 93 0557 05 55 5 5 5 5
20. TKR 850 PARTS LIST TX PLL VCO X58 4810 XX Desti Desti nation nation CK73GB1H471K 470PF K L361 L40 1595 34 LL FIXED INDUCTOR 1 5UH K3 C92 0514 05 2 2UF 10WV L362 L40 2275 34 LL FIXED INDUCTOR 22NH K2 CC73GCH1H040C 4 0PF C L362 L40 3371 34 ALL FIXED INDUCTOR 33NH CK73GB1H471K 470PF K CK73FB1E224K 0 22UF R300 RK73GB1J100J R301 304 RK73GB1J101J C92 0002 05 0 22UF R305 R92 1252 05 C92 0502 05 0 33UF R306 RK73GB1J220J CC73GCH1H040C 4 0PF R308 RK73GB1J560J CK73GB1H471K 470PF CK73GB1H471K 470PF R309 GB1J331J R310 GB1J332J R311 GB1J103J 470PF R312 GB1J331J 470PF KZ R313 GB1J222J Parts Description Ref Address 1 5 Description 10 16W 100 16W 0 OHM 22 56 330 3 3 330 22 C73GCH1H101J K73GB1H471K K73GB1H471K C73GCH1H100C C73GCH1H070B R3 GB1J474J R3 GB1J151J R3 FB2A152J R317 1252 05 R3 GB1J330J 470 C73GCH1H080B 15 ow K73GB1H471K C73GCH1H030B C73GCH1H1R5B CK73FB1E104K 33 c R320 GB1J222J R321 GB1J273J UF R322 GB1J103J 2PF 2 R350 1252 05 R351 1252 0 470PF 470PF R352 252 0 R353 252 0 7 0 2 354 681 7 0 R355 681 7 0 2 358 681 8 0 7 0 2 R359 RK73GB R365 RK73GB 8 0 R366 RK73GB R R
21. 1 IS Nex 91 5 QE ge itm 14 A i 77 TK14489V 825 Burer Aw 102 TS 1 BUFFER AMP 54 T L302 L301 L302 L301 x xxix 223 IL x x FM SYSTEM o 0 9 2 2 a 55 eA 24 171 0512 05 exi 22 peo 0 0302 nbo 5 aa 02 1939 05 44 85 2 44 395MHz 1 0302 tt Els NSS 2564226824 288 g 2 m she 1 xT WIDE wu 28C4226 R24 nbo n m gs De Ta NSS 459 M 9 se 53 9028 05 eon 7 7 7 7 1000 18 or 5 6 24 ack DTA144EUA r 9 314 5 2 2 2 L34 4530 05 6 8k WIDE NARROW 5 f x E Xm 77 7 7 7 5 5 5 2 24 ES SWITCH 77 120 of o 1 a lt lt n 5158 MSR mo p e TS 11 x DAN235K aT an cM 1 ee ee ee 19 S 51 3 2 lt lt T a ee ee ee ee 05 134 4527 05 os WIDE 2 19 2 8 03 DANZ35K x WIDE NARROW 7 pc 06 SWITCH 402 DTC144EUA 6 ps 777 144 0 j
22. 4 163 LAMP 99 BC1 4 75 0 25 4116 STB2 STB3 SFT RXDO TXDO RXD2 TXD2 HSMBBASx2 DP CP EPR EPT 1 620 i REF LD LD2 LDR LDT ADM202EARN pc REL i i 5 ee Ini cA eee DACH EE 1 CN601 OP Boara Cantrot 1 0 91 D SUB TKR 850 KES 4 EXTERNAL SPEAKER When Using an External Speaker 1 Make sure the unit s power is tuned off 2 When using the external speaker remove the jumper lead from the connector and attach the speaker cable 3 When not using the external speaker replace the jumper lead and insert the connector into the speaker jack pin9 and 12 Speaker cable SS lead Black White lead Crimp terminal E23 0613 05 Specifications Speaker 526 120 Maximum input power 20W mpedariCe s cto tr tns 4Q Frequency response 100 to 5000Hz Dimensions W x H x D 127 x 127 x 65 mm projection not included 5 x 5 x 2 9 16 inch 7804 1 72 Ibs 94 TKR 850 SPECIFICATIONS K K2 K3 TYPE GENERAL Frequency Range 450 to 480MHz K2 480 to 512MHz K3 400 to 430MHz Number of 16 channel Channel Spacing Wide 25kHz Narrow 12 5kHz PLL channel stepping 5kHz 6 25kHz Operating Voltage
23. ANT D1 4 8 235 09 88 5 01 2 10 25 3357 05 DTA144EUA 012 15 2SC4116 GR 018 2581386 8 1 1 2 NJM4558E 1 5 8009 IC9 TK14489V e ETT 05 742 011 02DZ5 1 Y 03 11 2SC3356 R24 07 25 4617 5 016 2SB1132 0 R 024 DTD114EK 1 3 11 NJM78LOSUA IC6 623546 0 TA7808F 07 155355 012 020218 04 6 DTC144EUA 08 9 25 3356 017 19 20 23 25 26 DTC114EUA 14 NJM7808FA 107 BU4094BCF 2 58 4810 TX VCO PLL 58 4800 RX VCO PLL 0350 0351 312 314 317 6324 350 352 353 354 355 356 357 358 359 c360 c361 c362 363 364 365 366 367 368 369 370 371 374 375 380 381 0350 0351 0352 0353 0354 0355 13011302 1303 1350 1351352 1353 1354 1355 1356 1357 1358 13591 3601361 1362 8350 R351 R352 8353 8354 R355 8358 8359 R372 R373 R374 R375 376377 TC350 TC351 C312 C314 C317 C355 C356 C363 C386 L301 L302 L303 L356 L357 R309 R312 R356 R357 10 25 508 52 NO 12 6 0 22u 35V 470p 100p 470 NO 11 5 10 18 12 No 470 7p NO 7p 7p 0 5 0 5 NO 15 282 15 282 No 15 214 No 151 15 221 NO tu tu 134 4645 05 NO u 1u 33n NO 47 100k 100k NO NO 150 05 0396 05 NO 10 7p 12 7p Sp p 15 100 18n 18n
24. 4 5 TEST SPKR CN602 E40 6009 05 NC DET 10u10 18k 36 IBCLKRO IBCLKR1 IBFSRO 581 20UT R21N T21N T20U 06 Q1 05 CLK VDD STRB C648 0 01u EEP ROM 1 600 2408 10512 5 8 DEMO NC R10UT C2 R1IN c2 T10UT C1 SDTO C685 0 07u 1 610 TA75S01F HCNTL1 SOT IHCNTL 1 IBDR 1 AF AMP vec 1 16 1 1 2 1 623 04094 SE p C662 R678 2 SHIFT RESISTER 224885 VEE 40 5702 05 IGND SDA IBCLKX1 10u10 100k 3 2 C1 geese 557 OUT DVDD
25. 850 CIRCUIT DIAG RAM Note Components marked with a dot are parts of pattern 1 TX RX UNIT CONTROL SECTION X57 6270 XX B 2 ese 5 C783 470p 13 56 SURGE i PROTECTOR 0610 9 251506 5 5 Yaron no 41 624 412627 5V AVR D627 628 eCN600 25554311 1 80 XC 2EP1802P 1 AVR 78_ 058 7 96V REVERSE 629 LA4422 E40 6102 05 99 3 2 3 INB i CURRENT Oa vour VIN lour IN PROTECTOR 4 0609 610 AUDIO AMP SB a e R814 47k 5 R602 GND CP603 10052 4 7k 8 2 DC SWITCH m ONE 8 3441 6686 58 2 GND OUTX ui ai 19 o UA N 99 91 625 1C628 INVERTER DC SWITCH 155355 PROTECTOR 255 o 3 M F 3 3V AVR gt 1 621 810 in E 2 259 3 34V XC62FP3302P TA78LOSF TC7SOOFU 1609 a DTC114EUA zZ
26. 9 MM 501 1 AINL AOUTL 8CT 4 4 sw 25 41 46 EO 2 a12 016 T i 9502 5C 2554116 281432 254 1586 Y GR TIE 5 85 11 605 2 BUP TEMP BUP TEMP CLR LI PPLE 4 i Bo 4 Me a a re PWDA SB 58 0405 PWAD 5 4 8 4053 1 x 501 04 CLK FWD N JM78LOSUA 1 5 1 2 4558 TAZBLOSF TAS ASQ RSSI EPR EPT Sy 017 1610 DTC114EUA SCLK EB BY bow SCR AR DICTA EA TA7808F i 5v ON nv oU AVR i i 0501 502 12613 HSMBBAS SOE SOE STB1 E i STB1 DAT o i DIVIDER 58 015 1 CLK SOE 5 25364146 i 5y TXD1 RXD1 PTT DSP MCLK TC74VHC4040FT icNeo2 T 9CLT L IPPLE 4 LCS i CLK SOE CLK SOE CLK SOE m pe Hesu TMS320VC5402PG X604 25 41 16 8009 Shift 1 STB1 STB1 STB1 6 Psw 1 503 TXDO RXDO Toc VoM 9CLR LIPPLE BU4O94BCFV 50 81 50 81 50 DAT 97 9 LD1 DAT CLK 0604 5 Shift Reg 2 Shift Reg 3 Shift Reg 4 lLII CPU 25 1824 ICN606 i RSW VTH 1C504
27. Scrambler On Enables an installed optional voice scrambler board Scrambler On Off Toggles between enabling and disabling an installed optional voice scrambler board Squelch Off The Squelch unmutes Squelch On The Squelch mutes Squelch On Off The receiver s squelch toggles between muted and unmuted Squelch Momentary The Squelch momentarily unmutes Take Over On Off Toggles between disabling and enabling remote wireline control Test Tone Off The Test Tone is inhibited Test Tone On The Test Tone is enabled Test Tone On Off Toggles between enabling and inhibiting the Test Tone TOT Disable The Time Out Timer is disabled TOT Enable The Time Out Timer is enabled TOT Disable Enable The Time Out Timer is toggled between disabled and enabled TX Disable The transmitter is inhibited TX Enable The transmitter is enabled normal TX Disable Enable Toggles between transmitter inhibited and transmitter enabled normal The following Programmable Functions are output functions used to tell the condition of the TKR 850 to an external device The output functions can be assigned to only AUX Outputs as follows Programmable Function Description COR Carrier Operate Relay his function becomes valid if an RF carrier is present TOR Tone Operate Relay his function becomes valid i
28. 1 1 4 4 850 VIEW 138 Jey EET TES 322122 Er pes 2 Lou ATIS ph o zo x 54 52 PA o quo po 25 bud bu f 2 1 j jo 1 ai pee 8 4 1 8 in T 4 6 9 Qu amp 025 pe E 1311 Fe MZ E bid 4 T D TX 1 8 8 MM um 1 18 158 2B 8 Component side so fo m Pattern 3 a bi Foil side Connect 1 and 4 H N Q R 5 p TKR 850 Boarp view TX RX UNIT 57 6270 2 10 11 2 12 K3 Component side view 1 5 ea 806 8 257572222 DL im 800 4 8 EE zZ N 1 627 8 S 1 EO E 5 5292224052 z E a o e r s E m gy S 9 1 629
29. 10 1 10 3 9n 9 03 m 470p 470p 2 5n k 470p C64 470p Le 420 U 177 2562596 2 N PY bw la nob 0 U y m 252 e D3 N U x x ave UT oT oe ar _ 5 5 5 x a N a 7 7 th 7 La 17 55355 1 N T x Q7 fad N N 9 5 m 2 p 2 25 1824 a Bs ER 4 OY in B Ax og KS men N N LIE N N xw Ua qun arn Ua gt re A ur Hn 2 T 1 20 21 04 5 1 3 e le 0 0 5 355 5 2 om OFS 2 i OV D of o ny ATT T 77 77 02 777 77 st NS WO VOLTAGE 02 959 215 REFERENCE 02025 1 vow dr 7 9 1 e elC3 DC AMP Q7 2 eC 120 TA75W01FU eR41 RF SWITCH eR59 3 eR60 470 10014 9 100k 12 n 8 qs 7 H 6 7 el asla S 08 ere UJ 8 a el al al al al 25041166 Nh A NR Rp Rp ET DC SWITCH D10 wi 7 SURGE VOLTAGE PRO
30. 88 5 02075 1 020218 742 DA204U 25111 DA204U ISMDE190 155355 DA204U JM4558E JM78L05UA JM7808FA 8009 623546 U4094BCF IK14489V A7808F JM78L05UA 2408 10512 5 RH5VL42C BU4094BCFV C74LVX4245FS 0622M4 113GP 53BCF LVX4245FS 3 B LAY ODE ODE ODE ODE ODE ZENER DIODE ZENER DIODE DIO D D 2804617 5 2563356 2563357 25 3356 24 2804116 88 258 QR D UA 25 58 4800 RANSISTO TRANSISTO RANSISTO RANSISTO TRA 10 R R R R 11 2 12 CK73GB1H102K CK73GB1H103K CK73GB1H471K CK73FB1E104K 92 0001 05 1000 0 010UF 470PF 0 10UF 0 1UF TKR 850 RX PLL VCO X58 4800 XX TX PLL VCO X58 4810 XX Desti nation PARTS LIST Desti nation 6 0PF K2 73GB1J100 CH 10 J 7 0PF KE K73GB1J10 CH 100 J 8 0PF K3 252 05 CH 0 12PF KE 73GB1J CH 22 15PF K2 736 1 56 Address Parts No Description Address Parts No Description C73GCH1H060 C73GCH1H070 C73GCH1H080 C73GCH1H120 C73GCH1H150 lt gt C73GCH1H180J 73FB1H473K C73GCH1H060D C73GCH1H070D C73GCH D 18PF K3 73GB CH 330 0 047UF 73GB
31. 2 2 27K CK73FB1E104K CC73GCH1H120G CC73GCH1H180G CK73GB1H471K CK73GB1H471K 62 C2 736 0708 736 0708 736 0708 7 0808 736 0708 Ce o0ccc 730 0808 730 OR5B C73GCH1HOR5B K73GB1H471K C73GCH1H040C 0 5 2 R367 GB 0 5 R368 GB 470PF 4 0PF R372 373 R374 375 0 5 R376 0 5 R377 470 J IC TRIMMER CAP 8P D350 15 282 ABLE CAPACITANCE DIO IC TRIMMER CAP 8P D351 15 282 VARIABLE CAPACITANCE DIO D352 15 282 VARIABLE CAPACITANCE DIO 40 5699 05 ASSY D353 15 282 VARIABLE CAPACITANCE DIO 40 5755 05 ASSY D354 15 214 VARIABLE CAPACITANCE DIO 40 6098 05 ASSY 82 33 OOOO GB GB GB GB 100K 100K 150 J 180 J CC73GCH1HORSB CC73GCH1HORSB CC73GCH1H471J C05 0396 05 C05 0396 05 R R R R GOOG R R R R 5 20 gt 20 gt 0355 15 214 VARIABLE CAPACITANCE DIO F10 2377 04 ELDING CASE C300 SA7025DK MOS IC 0300 301 2804116 88 TRANSISTOR 0302 2804226 824 TRANSISTOR 0350 25 508 52 FE L92 0148 05 E CHIP L40 1575 34 XED L40 1875 34 140 1875 34 140 2275 34 0351 28 508 52 FE 0355 2804226 824 TRANSISTOR
32. 505 1 502 1C617 1 0512 514 BU4O94BCFV BU4094BCFV BU4094BCEV B 2 L i i UPA627T i ord 1 604 Interface SFT M30622M4 16617 DTA114EUA x 4 603 606 1 615 2 E i Y 2516 519 0521 524 i SFT TO74LVX4245F5 2 gt i 7 g 2 oe 10 0601 WR ES M62364FP MESE ge DNI j DTC114EUA A0 D3 i 14 5501 5502 5503 5504 5505 8 9 5 TK11050M tc2 iMain RSW 5 1 5 gt 1 5 deoz 9 18 AT29CO20 90T1 PC PDT VTH TEMP AVE CN i 0505 25 1824 WR CSO NJMA558E x 4 i NJM78LOSUA LH 5507 TEMP gt 05 1 1 070 52 2SK3478 ESET Reset 101 6 25 3356 824 2503075 Power source i C600 1C601 Final 15 Drive AMP Drive AMP 1 TX BUSY Main DC Sw AT2408N10812 5 RHSVL42C 50 5 3 9506 2507 Back UP 11 3 d gt gt COUPLER Si FAB SCLK 25 5110 0 25 2596 i DTD123EK SDAT Shift 6 SE y Drive AMP Drive AMP TEMP DES P 222222 d guest j EPTT EMON TXI TXO 1C 02 AMP SW DET 1 SOE DAT CLK Anas TEETE
33. 55 75kHz 5 5 7 5kHz Max 3 75kHz 3 75kHz AMKR 154 00 2 245 00048 More than More than 40dB 40dB A15kHz CENTER RBW 300kHz CENTER 44 85000MHz RBW 300Hz VBW 1 0kHz SPAN 50 00MHz VBW 300kHz SWP 50ms Fig 1 Fig 2 Adjustment Points CN8 CN6 DC BLACK RED CN7 BACKUP ORANGE L2 C o Tt SPAN 50 00kHz SWP 2 0sec CENTER 44 85000MHz RBW 300Hz VBW 1 0kHz SPAN 50 00kHz SWP 2 0sec Fig 3 FINAL UNIT X45 363 A 2 Component side view TUE TC350 VCO K K2 E TYPE L19 L16 an CN2 NARROW L24 lel o er L14 L18 TX RX UNIT X57 627 A 2 Component side view 48 A2 TX VCO X58 481 TC351 VCO B K3 TYPE TC350 VCO A RX VCO X58 480 351 VCO Final Unit X45 3630 XX Connector Terminal No No Name Terminal TERMINAL FUNCTION Terminal function Terminal No Terminal Name TKR 850 Terminal function CN1 DRV TX driver input signal Coaxial CN2 Reserved output Main DC BACKUP status output RF power down signal output Res
34. 60 2 VINI 5 06 o P lt 2 uibs 0611 814 1 9 9 DTC114EUA 2 ES Bese DTC114EUA ec841 1000025 N m R661 47k 52 3 1 626 47025 D lt VOL CAGE 2 3 AVR TA78LOSF m E D D DETECTOR ERA 5V AVR y 2 n 23 vour vinl IN Ez N N x 4 82 40 4 2 8 2 IN KEYS m 222 0606 CN603 11 2 05 DTC363EK E40 5887 05 LOR I AF MUTE za m SWITCH am SWITCH CP614 1 2 1C624 628 630 m 206 lt BE 29600 R662 ik VOLTAGE REGULATOR GND 7 4 647 R673 100p 100k 1c608 75501 5 1 614 4550 eR801 ik 47k R800 SPG SPG RD 765 0 010 INC8 AF AMP RS232C TRANCE VER 1 620 ADM202EARN AOUTR INR AOUTL vss PWAD ScLK MCLK DEM1 LRCK 5 HCNTLO IHCNTLO VSS6 Vss CPU Xin 1C604 7 30622M4 113GP Vss 05 55 RSS a s 04 07 02 eR654 0 643 R668 3 OUT VEE SPI 1 2 5 5
35. Address 1 5 Description Parts No Description 0 010UF OUF OWV 00 25WV 0470 25WV OUF OWV C C3 Co CK73GB C681 92 0546 05 92 0008 3UF C684 CC73GCH1H101J CK73GB F C685 73GB1E103 CK73GB C690 73GCH1H101J CK73GB C691 692 73GB1E103 6 3WV CK73GB CK73GB CK73GB CK73GB CK73GB C693 694 695 696 697 702 C703 704 C705 92 0628 05 73GB1H471 92 0628 05 T3GB1C104K 73GB1E103 92 0008 3UF C706 CK73GB C707 709 CK73GB 3 710 CK73GB F C711 C92 0606 AUF C712 92 0628 05 73GB1E103 92 0628 05 73GB1H471 73GB1E103 cc cO CK73GB CK73GB CK73GB CK73GB CK73GB 713 714 C715 C716 717 718 719 720 722 0 0 0 0 CK73FB CK73GB CK73GB CC73GC CC73GC C723 C724 C725 C726 727 728 CC73GCH CC73GCH CK73GB1 CC73GCH CK73GB1 C729 C730 731 C732 C733 C734 CK73GB1 CK73GB1 CC73GCH CC73GCH CC73GCH C735 C736 C737 C738 0739
36. 22n 134 4608 05 L34 4608 05 330 330 220 180 11 K2 2SK508NV K52 10 Sp 0 22u 35V 470p 470 7p 1 5 1 12 470 NO 7p 7p 7p 0 5 0 5p No 1sv282 15 282 15 214 NO 15 150 180 NO 1u 14 tu 134 4605 05 1u 22 33 NO NO 47 100k 100k 150 05 0396 05 11 15 5p p 18 22 15n 15 18n 134 4607 05 L34 4607 05 390 390 180 150 12 2SK508NV K52 7p 12 7p o 33u 35v 100 470 10 470 0 14 No 18 470p 7p 8p 5 No 0 5 No 4sv282 15 282 No 15 214 18 18n 270 1u tu tu NO 134 4607 05 1 50 1 50 30 No 47 NO 400k 400k NO 180 NO 05 0396 05 12 18 6p 7p 15 100p 18 18 27 134 4609 05 134 4609 05 330 330 220 180 0350 353 15 282 0300 301 25 4116 68 0350 351 25 508 52 1C300 5 70250 D350 353 15 282 0300 301 25 4116 68 0350 351 25K508NV K52 0354 DTC114EUA 1 300 SA7025DK 82 0354 355 15214 0302 355 2SC4226 R24 0302 355 25C4226 R24 0352 353 25 4116 c e E a MI Q 5
37. 5 5 5 5 5 6 6 T al ad 988 yryveo 1 002 Nema 77 jl 25 NI 747 in Bid HL o mel NC 6 6 NC ana gt 1 x amp m Xl FREQUENCY m Co a V USED FOR milfs om CONTROL 19 5 2 Ors Dts X eg a DC SWITCH 77 RIPPLE FILTER z 7 0351 gt C95 C100 C105 C369 5 1 R352 1351 0353 C355 XL357 25 508 52 0353 e e 11 e 11 ei AvA T 57 25 4116 SUFFER ANE E 7p R352 L351 xp353 355 357 0351 1 0 18V282 44 1 BUFFER AMP RIPPLE FILTER RIPPLE FILTER NJM7808FA 576 0401 05 e o 1 0 T 9 1 FREQUENCY m 2 ae ICA 013 R122 015 x nl 5 CONTROL x NJM SSSE NJM SSBE x CURRENT 2SC4116 GR 10 2SC4116 GR 2 1 77 FREQUENCY mam uT CONTROL 1 CONTROL 4 1 ola mn OSC a 5 x x x 17 ms amp 08 09 010 5 rir oT 69 gt 25 3356 25 3356 25 3357 S SZ 1 E Ba zm vco osc 1 s E x Apte VOLTAGE r 2 DC SWITCH z 1 E Cm e 07 155355 uz 2 2 gt
38. 7B Pattern 1 11 07 7B 10 90 Pattern 2 09 90 Pattern 3 Pattern 4 Foil side 12 13 1 850 5 views F FINAL UNIT X45 3630 XX 10 K E 12 Component side view Foil side 5 aoe fai eee gt N e o T 1 Component side Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side Connect 1 and 4 N PC BOARD VIEW 850 TX RX UNIT 57 6270 A 2 10 11 2 12 K3 Component side view J 72 0758 11 A 2 GND2 UJ 216 170 R61 217 a e 118 114 GND2 one M one 58 SOE 5CR 2 5 I gll B4 Y N Address Ref No Address Ref No Address Ref No Component side Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side 67 68 4
39. 9 8738 L1 Address Ref Address Ref No Address Ref No Address Ref Address Ref No Address Ref No Address Ref No Component side 10 Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side 11 Connect 1 and 4 12 13 B 4 gt L N R 88 T Note Components marked with a dot are parts of pattern 1 CIRCUIT DIAG RAM 850 TX RX UNIT X57 6270 XX 2 ss sw ss ss ss se se sc se ss sc se se ss se sc se sc se ss se ss se sc rs ss se ss se ss sc ss rs ces es ces ces cs cs es es cs c
40. IC signal input 0 IC signal input IC signal output RX audio signal input Audio control signal output Scramble code ou Scramble code ou Scramble code ou Scramble code ou PTT signal input Clear code for scramble RX audio signal output PTT signal output Common 5V output Ground Common 8V input Common 8V input No connection Power supply input after power switch Power supply input after power switch Power supply input after power switch Power supply input after power switch No connection No connection Ground Ground Modulation signal output for VCO Modulation signal output for VCXO Terminal No Terminal Name TERMINAL FUNCTION Terminal function Terminal No Terminal Name TKR 850 Terminal function 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 GND SOE TEMP PSW BUP LD2 FWD STB4 QUO Ground Output enable for shift register High temperature detector signal input Power switch output Backup signal input Latch data output for DA converter RF power down signal input Strobe output for shift register Clock output Data output or TX PLL or RX PLL or TX PLL or RX PLL Clock output for PLL Data output for PLL No connection RSSI signa Squelch signal input Lock detector Lock detector Enable output E
41. L40 2775 34 LL FIXED L40 1095 34 LL FIXED L40 1095 34 LL FIXED L40 1095 34 LL FIXED L34 4605 05 R CORE COIL L34 4645 05 AIR CORE COIL L34 4607 05 AIR CORE COIL L40 1095 34 SMALL FIXED INDUCTOR 1UH L40 1595 34 SMALL FIXED INDUCTOR 1 5UH L40 1095 34 SMALL FIXED INDUCTOR 1UH TKR 850 EXPLODED VIEW TKR 850 12 704 05 46 46 46 46 45 46 45 45 46 46 45 46 45 45 09 15 N30 N30 N30 N30 32 2 N33 N35 N67 N35 N87 M4 x 20 BLK 5 BLK N87 M3x6 Br Tap BLK N87 J M3x6 OC BLK L M3 x 14 Bi N M3x8 M2 6 x 6 Br Tap FW 2 6 6 4 6 4 14 M4x8 F BLK 4 6 Bi BLK 40 Parts with exploded numbers larger than 700 are not supplied TKR 850 PACKING E F 53 Protection bag H25 0029 04 59 Foot J02 0475 05 x 2 60 Foot J02 0492 04 x 2 62 Grommet J59 0302 05 x 2 D Binding head machine screw N30 4006 46 x 2 K Binding head machine screw N35 3006 45 x 5 49 Cushion G13 1801 04 50 Cushion G13 1802 04 54 Protetion bag H25 0747 04 61 Hardware fixture J21 8402 04 707 Pamphlet E 708 Warranty card K K2 2 11 Instruction manual B62 1327 10
42. TKR 850 10 OPERATING FEATURES 6 Priority TalkBack The TKR 850 always reverts to the Priority channel However if a call is received on a chan nel other than the Priority channel and PTT is pressed before scanning resumes the transceiver talks back on the current receive channel 9 CW ID and Message The TKR 850 contains internal automatic station identifi ers The CW ID Morse code is set and transmitted on a per channel basis The CW ID is transmitted when the in terval period is reached TX Interval Time function the channel is changed CW ID on Channel Change function or CW ID Onfunction is executed When CW ID is activated by any functions described above it is actually sent after the total time of TX Delay Time not applied to CW ID On func tion and CW Modulation Delay Time has expired TX Delay Time is a period from CW ID is activated to the transmitter is keyed CW Modulation Delay is a period from the transmitter is keyed to the CW ID tone is sent The CW ID tone is routed to the Receive Audio RA port and a speaker if the Send CW ID to RA function is set to Yes The TKR 850 contains 8 message banks for CW Message CW Message 1 to 8 is transmitted on the current channel when the CW Message 1 to 8 On function is activated respectively 10 PTT Priority A number of keying sources can be used to cause the TKR 850 to transmit The transmit audio path is switched according to their keying sources a
43. 0514 zl 3 1 I E 672 UPA672T eh 72 7 3 5 ar I mm FE 4 N 1 e NU v 2 211531 2216 i swiren 0184 og 512 0 014 u Q 5 SHIFT l ub 2 T RESISTER SHIFT RESISTER IC503 222 BU4094BCFV 8 a 7 7 0514 2 DA204U DC SWITCH LED 0508 A lt G gt 5 A x DTA114EUA R516 2 777 1 2 A lt R gt 3 1 24 5 010 eD503 DC B30 2151 05 1 SWITCH DC SWITCH 0506 0510 DTA114EUA R517 LED DTA114EUA R519 LED 820 lt gt 2k A lt R gt 20 sb 1 24 lt gt 2 A lt G gt 2 0504 90505 eas B30 2151 05 B30 2151 05 2SK1824 R520 PTO SWITCH 520 l 1C502 5 o 77 lt 52211 Alby oly DC zn BE e TY asos SWITCH 0511 Tli UPA672T 0507 DTA114EUA X54 3330 20 2 1 77 672 SWITCH i N m 1 1 go ut gp 777 See og 0508 D509 0510 D511 0508 514 CURRENT eVR601 icd DA204U DA204U DA2Z04UDA204U SURGE ABSORPTION 1 PROTECTOR 10k 2 5M 10 e 3 GND 9 D603 4 c 8 INISMDO20 5 58 gt 1 0501 f 5 2 5 28C41416 Y AF DETECTOR 7 GND lt 5 R508 C504 C508 R604 1k
44. 7 Installing Name Plates Punch out the name plate card Then insert the plates onto the reltative function keys You can reconfigure the name plates at any time Punch out the name plate cards Squeeze and insert the plates C O Ore OO OOO Name plates for the function keys Name plates Side view of the key Fig 8 TKR 850 MODIFICATION DISASSEMBLY FOR REPAIR DISASSEMBLY FOR REPAIR 1 How to Remove the Panel Assy ABS Note You can remove the panel assembly ABS without removing the top panel A62 0840 03 1 To remove panel loose 6 screws 1 2 To remove panel assembly Front 2 loose 6 screws 3 The panel assembly ABS is security fastened by 4 tabs 5 on top and bottom You can remove the panel as sembly by pulling to front while you are pulling up the tabs 17 TKR 850 18 CIRCUIT DESCRIPTION 1 Outline The TKR 850 is a UHF FM repeater designed to operate in the frequency range of 440 to 470MHz E 450 to 480 480 to 512 K2 400 to 430MHz The unit consists of receiver transmitter phase locked loop PLL frequency synthesizer and control circuits 2 Receiver Circuit The receiver is double conversion super heterodyne de signed to operate in the frequency range of 440 to 470MHz E 450 to 480MHz K 480 to 512MHz K2 or 400 to
45. audio a duplex base station has independent simultaneous transmit and receive paths a simplex base station are mutu ally exclusive transmit and receive paths 7 Signalling Feature 7 1 Multiple The TKR 850 can function as a multiple OT DOT decode encode unit for operation as a community repeater or mul tiple OT DOT base station Two Multi Tables called Main and Sub can be created each consisting of 16 decode en code combinations Do not turn on The Multi Table function enables the TKR 850 to decode any one of the 16 OT DOTs pre programmed into the Multi Table When receiving a signal repeater operation the re peater uses the OT DOT encode which corresponds to the decoded as set in the Multi Table In the Multi Table signalling pair of No 1 first column is defined as Primary A receiving signalling if it is contained within No 1 to No 16 is defined Current From No 2 to No 16 signalling pairs that can be changed between Main Table and Sub Table using AUX I O Ports 1 4 are assigned as Multi Table Select and the Multi Table Main the Multi Table Sub or the Multi Table Main Sub function is executed When AUX I O Ports 1 4 are set for Multi Table Select these are 4 bit Binary Coded Decimal BCD inputs AUX 1 is a least significant LSB and 1101 input LSB on the right side signifies the Table No 2 and 1100 input signifies the Table No 3 7 2 Encode Ton
46. deviation Wide 1 Insert AG output into the control 1 TA terminal pin 9 CH 2 Deviation meter filter HPF OFF LPF 15kHz De emphasis OFF AG freq 1kHz Sine wave AG level 280mV Transmission Narrow CH 2 Transmission MOD ANA or Deviation meter Oscilloscope AG VIVM CONTROL 10 jack TA pin 9 27 deviation Wide Insert AG output into the control I O TD terminal pin 8 CH 2 Deviation meter filter HPF OFF LPF 3kHz De emphasis OFF AG freq 100Hz Sine wave AG level 0 5Vp p 177mVrms Transmission Narrow CH 2 Transmission MOD ANA or Deviation meter Oscilloscope AG VIVM CONTROL 10 jack TD pin 8 28 Repeat gain level Wide CH 2 SSG output 53dBm SSG MOD 1kHz SSG 1kHz Deviation meter filter HPF OFF LPF 15kHz De emphasis OFF Transmission Narrow 1 2 Transmission SSG MOD ANA or Deviation meter Oscilloscope PC adj 3 0kHz 0 1kHz PC adj 1 5kHz PC adj 0 75kHz PC adj 0 35kHz PC 1kHz TKR 850 ADJUSTMENT ATTEN 2048 RL 10 048 10dB MKR 26 17dBm 465 00MHz ATTEN 10dB RL 32 0dBm 10dB 42 17dB 25 00kHz ATTEN 10dB RL 32 0dBm 10dB More than More than 46 000dB 15 00kHz 3dB 55 7 5kHz 5 5 7 5kHz
47. 15 contained in scan se quence the right side decimal point is displayed When displayed channel 15 the priority channel the left side decimal point is displayed N us e PC is displayed while in PC mode Lr Hi LL PG is displayed while in firmware programming mode 2 decimal points displayed 115 200bps 1 decimal point displayed 57 600bps No decimal 38 400bps or or e E1 is displayed when FPU is not written mi 8 V a e E2 is displayed when the channel is not written E3 is displayed when PLL is unlocked Receiver PLL unlocked flashing BUSY LED Transmitter PLL unlocked flashing TX LED L J d P Li EA is displayed when PTT is attempted on a channel number that has no frequency data programmed FEL TKR 850 OPERATING FEATURES 3 Programmable Functions TKR 850 contains many Programmable Functions tabled below Programmable Function Description UX Out 1 5 Off UX I O 1 6 UX Out 1 5 On UX 1 6 On UX Out 1 5 On Off UX I O 1 6 On Off UX Out 1 to 5 ports become deactivated respectively UX I O 1 to 6 ports become deactivated respectively UX Out 1 to 5 ports become activated respectively UX I O 1 to 6 ports become activated respectively UX Out 1 to 5 po
48. 150UH EO4EW C73GCH 73GB 73GB C73GCH L40 1885 34 ALL FIXED INDUCTOR 180NH L40 3381 37 ALL FIXED INDUCTOR 0 330UH L40 1005 34 ALL FIXED INDUCTOR 10UH L34 4527 05 L L34 4526 05 L 9 coc CO CK73GB CEO4EW CK73GB CEO4EW 92 0560 134 4527 05 134 4526 05 134 4527 05 140 1095 34 140 1005 34 rn CK73GB CEO4EW CK73GB CEO4EW CK73GB L40 1095 34 L34 4530 05 L40 2775 34 L40 1575 34 L40 2275 34 Co rn c 92 0777 05 73FB1E104K K73GB1H102K EO4EW1E4 73GB1H102K L40 2275 34 L40 1875 34 L40 1875 34 L40 1875 92 L40 2275 92 4 rn rm REB i C73GCH1H101J 92 0619 05 73GB1H472K 73GB1C104K 92 0560 05 1005 34 1575 92 1005 34 192 0140 05 192 0158 05 c 5 I I C92 0633 05 92 0514 05 CY P F L92 0140 05 F P TA L40 1875 92 TOR 18NH L40 6865 92 TOR 6 8NH SOCKET L92 0140 05 ASSY L40 1875 92 18NH SOCKET ASSY L600 613 L92 0140 05 AT CABLE CONNECTOR X1 L77 1762 05 44 395MHZ X23 L77 1849 05 E40 5703 0 ASSY X600 L78 0431 05 40 5632 0 ASSY 601 L77 1799 05 16 515MHZ 04 0154 0 50 40 6102 0 ASSY 171 0513 05 40
49. 1607 e 826 3 5 785 2 601 2410600 798 604 8 R654 D egar DEIC 10 ae C811 5 0614 0618 8 VDD gt OUT 2 2 8 IC601 Si 605 ps e owe IS es e 373533311331 529829552289 lt lt TEIST MAS CN604 T 22205 72 99090990 e Im gt Ki HB SERA 19 e 2 N 2 518 Ae 702 22 aztan 2 AEE 148 657 R674 R750 BOS els ko SSeS joc N CN605 a 5 N UJ R675 C827 751 6 760 5 SPG al x C646 Slee fee R755 R769 R812 72 0758 11 2 E Q o 79 5 1 N S gt 22 amp NI gt a er Component side Ref No Address Ref No Address Ref No Address 5B 3G 4N 7M 1C624 1 630 0624 Pattern 1 7L 1 625 0600 0625 Pattern 2 6L 1C627 D614 D626 Pattern 3 8P 1C628 D618 D629 Pattern 4 11 8L 1 629 0621 Foil side 12 13 14 73 74 11 12 13 14 PCBOARDVIEW TIK
50. 3 Acc D sub 25 pin Acc RXD Acc D sub 25 pin 5V PLL IC clock 5V PLL IC data Display shift register STB CPU ready input Shift register common OE Not used Aux No 6 Acc D sub 25 pin Not used 24 DSP 320VC5402PGE TX RX unit 1 618 Pin Function Name SEMICONDUCTOR DATA Function TKR 850 Function NC1 NC2 used No connection Vss D Frame sync for receiver input LRCK 16 128kHz D for I O pins 3 3V used No connection HCNTL1 Serial data receive input HPI control 1 data bus BDR1 Not used No connection used No connection used No connection BCLKXO Transmit clock input SCLK 516 09375 address strobe Pull up D BCLKX1 Master clock output MCLK 4 12875 used No connection Vss GND D for core CPU 1 8 HINT TOUT1 Boot mode select Pull up chip select CVDD VDD for core CPU 1 8V read write a ready Pull up BFSXO Frame sync for transmitter input LRCK 16 128kHz used No connecti used No connection Frame sync for transmitter input LRCK 16 128kHz used No connection Not used No connection used No connection VDD for I O pins 3 3V used No connection GND used No connection HPI data bus used No connecti
51. 30622M4 113GP TX RX unit IC604 Pin Function Function Function Aux No 5 No 1 Acc D sub 25 pin Not used 5V Not used GND Flash ROM WR DSP HDS1 TX PLL IC enable Not used RX PLL IC enable Flash ROM WR DSP HDS2 Microcomputer reset input Control shift register STB 14 7456MHz DSP interrupt Off L On GND DSP HCS 14 7456MHz Flash ROM CS 5V ot used ash ROM address bus Not used F Backup battery detect 5V H Backup L Main ash ROM address bus Temperature detect for fan action ND H Temp high L Temp low ash ROM address bus Acc PTT Acc D sub 25 pin Acc monitor Acc D sub 25 pin Off L On Off L On Common clock L RX VCO lock de Common data H Lock L Unl Beat shift H On L Off L TX VCO lock de Control D A converter LD H Lock L Un Control shift register STB EY5 KEY4 Key matrix outp TX RX D A converter LD EY3 KEY1 Key matrix inpu shift register STB 27 00 Flash ROM data bus DSP reset H Off L On FWD RF power down level input Squelch control D sub 25 RSSI level input H Inactive L Active Squelch level input Mic PTT Off L On Volume level input Mic TXD Power supply voltage level input Mic HOOK RXD Aux input No 1 Acc D sub 25 pin EEPROM clock Aux input No 2 Acc D sub 25 pin EEPROM data GND Acc TXD Acc D sub 25 pin Aux input No
52. 430MHz The receiver circuit located in TX RX unit X57 627 A 2 consists of the following 2 1 front end circuit 2 2 first mixer 2 3 IF amplifier circuit 2 4 audio amplifier circuit and 2 5 squelch circuit 2 1 Front end Circuit The front end circuit consists of BPF 12 RF amplifier and BPF L4 L5 The helical BPF covers frequency ranges 440 to 480MHz and 480 to 512MHz K2 with a pass band of 5 0MHz 400 to 430MHz with pass band of 3 0MHz K3 The BPF L4 L5 attenuates the unwanted signals and sends only the necessary signal to the first mixer DBM 2 2 First Mixer The signal from the BPF is heterodyned with the first lo cal oscillator signal from the PLL frequency synthesizer cir cuit at the first mixer DBM to become a 44 85 2 first intermediate frequency IF signal The first IF signal is fed through two monolithic crystal filters XF2 Wide XF1 Nar row to further remove spurious signals 2 3 IF Amplifier The first IF signal is amplified by 2 and and then enters 1 9 FM system IC The signal is heterodyned again with a second local oscillator signal 44 395MHz with in IC9 to become a 455kHz second IF signal The second IF signal is fed through a 455kHz ceramic filter CF1 Wide CF2 Nar row to further eliminate unwanted signal and the quadra ture detection circuit FM detects the signal to produce a base band signal and output it from pin 11
53. 5091 cheos 1C623 8759 8769 755 8769 49 4 681 0608 0612 Fig 1 Add 58761 88759 3 9kQ Remove Z 0625 D624 DA204U Add 0608 Add 0612 0607 0611 Shift DTD114EKA DTD114EKA TEST register 1C623 Remove Remove SPKR R755 R756 R769 R770 00 00 Fig 2 15 TKR 850 MODIFICATION 3 Trickle Charge for Backup Battery If the external DC power supply is connected to the Main DC connector and a backup battery 12V rechargeable type is connected to the Backup connector at the same time the battery can be trickle charged from the external DC power supply with a maximum current of 0 5A Short the CHARGE land near R61 Notes 1 Make this modification after removing the DC power sup ply and battery for safety 2 When the DC power supply is connected after the modi ication DC voltage is output to the Backup connector Be careful during setup 3 When the backup battery is used for a long time remove he battery from the repeater and recharge it because the rickle charge is not sufficient for recharging a completely discharged battery Final Unit A 2 Component side CN7 BACKUP co ORANGE E CHARGE R61 HB Fig 4 4 Accessory Cabinet You can install optional accessories
54. 5701 0 ASSY XF2 L71 0512 05 04 0154 05 40 5538 05 04 0154 05 5 5 40 5538 0 40 6009 0 CU CU 40 6009 05 AT CABLE CONNECTOR P600 601 R90 0725 0 40 5887 05 ASSY P602 90 0724 0 40 5702 05 ASSY P603 90 1019 0 5 5 40 5704 0 ASSY P604 605 90 0725 0 40 5960 0 ASSY P606 R90 0719 0 F53 0217 0 USE P607 608 90 0725 05 0 P609 R90 1019 05 Kc L72 0366 0 CERAMIC FILTER P610 611 R90 0750 05 PLE RESISTOR 0 5 0 5 172 0376 0 CERAMIC FILTER P612 614 R90 0725 0 134 4616 0 AIR CORE COIL R90 0750 0 PLE RESISTOR L79 1771 0 HELICAL BLOCK L79 1772 0 HELICAL BLOCK R92 0670 05 0 OHM RK73GB1J122J 2K J TKR 850 TX RX UNIT X57 6270 XX Parts No Description PARTS LIST Desti nation Address 1 Description Desti nation RK73GB1J102J RK73GB1J101J RK73GB1J151J RK73GB1J223J RK73GB1J180J RK73GB1J271J RK73GB1J271J RK73GB1J333J RK73GB1J824J RK73GB1J684J RK73GB1J474J RK73GB1J224J RK73GB1J821J RK73GB1J5R6J RK73GB1J821J RK73GB1J470J RK73GB1J102J RK73GB1J182J RK73GB1J102J RK73GB1J682J R92 1252 05 RK73GB1J560J RK73GB1J270J RK73GB1J222J RK73GB1J223J RK73GB1J222J RK73GB1J153J RK73GB1J473J RK73GB RK73GB1J R92 1252 RK73GB1J RK73GB1J RK73GB1J RK
55. 64 Handle K01 0418 05 17 E30 3427 15 8 Front glass 55 Protection bag 10 2635 04 25 0762 04 10 11 1259 04 56 Protection bag ES H25 2328 04 18 Lead wire with connector e E31 3228 05 22 36 Fuse Blade 15A 32V 05 1537 05 710 53 709 Packing fixture H25 0029 04 Carton board 712 Protection bag 711 Packing fixture 57 Item carton case H52 1779 02 Parts with the exploded numbers larger than 700 are not supplied 41 TKR 850 42 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range SSG odulation Output 400 to 512MHz Frequency modulation and external modulation 0 1uV to greater than 1mV Power Meter nput Impedance Operation Frequency Measurement Capability 50Q 400 to 512MHz or more Vicinity of 50W Deviation Meter Frequency Range 400 to 512MHz Digital Volt Meter easuring Range DVM Accuracy 1 to 20V DC High input impedance for minimum circuit loading Oscilloscope DC through 30MHz High Sensitivity Frequency Range Frequency Counter Frequency Stability 10Hz to 600MHz 0 2ppm or less Ammeter 13A or more 8 AF Volt Me Frequency Range VTVM Voltage Range 50Hz to 10kHz 3mV to 3V Audio Generator AG Frequency Range Output 50Hz
56. Control Circuit The control circuit mainly located in the control section of TX RX unit X57 627 B 2 consists of the following 5 1 CPU 5 2 memory circuit 5 3 CPU clock shift 5 4 shift register circuit 5 5 display circuit 5 6 DSP circuit 5 7 base band cir cuit 5 8 RS 232C circuit and 5 9 power supply circuit 5 1 CPU The CPU IC604 is a 16bit single chip microcomputer containing a 32k ROM and 3k RAM This CPU controls the flash ROM the DSP the receiver circuit the transmitter cir cuit the control circuit and the display circuit and transfers data to or from an external device 5 2 Memory Circuit 1 609 has a flash ROM with a capacity of 2M bits that contains the control program for the CPU the signal pro cessing program for DSP and data such as channels and op erating features This program can be easily written from an external de 5 5 Display Circuit The display circuit X54 333 contains two 7 segment LEDs D506 D507 orange see the operation manual for details of display D503 red transmission 0504 green busy two color LED D505 red backup green main DC LEDs in switches S501 to 506 1 502 1 503 IC504 and 1 505 to display this model channels and states 1 502 to 1 505 are shift registers which convert serial data from the CPU to parallel data and light LEDs 0507 510 and 0511 are switching transistors which control two color LED D505 506 and IC507 are three pin power
57. MA742 25 4617 5 pM Buff AMPSW SOE T STB4 N YEOMAN gt art eee H PTE A SEENEN 1 a Fe 127 SRR 4 1 1 2SB1386 R Li LPF o oT 4 455 i Display unit os 75501 NJ PLL DTA144EUA X54 333 A 2 CN501 of gt WIN 14200 nume 02020202020202020202020020202020209500000000 lt 1 Z MAMPI M 5 22 65 5 t 1 7 AINR AOUTR 1 LD2 a19 EPR EPT CK 1C6 06 1 14 0 i 1 4558 B IcN502 DEO OT 14 4 DC i DAC B 2 5 50 M62354GP GRI 2 5V MB AMP gt VLI 1 610 1 616 2 1 616 2 1 611 2 102 5 AVR x3 i i TA75501F NJM4558E NJM4558E N3M4558E M62364FP BCLT LIPPLE 1811 1 4 16 MIC MO MO NJM78LOSUA NJM7808FA K1 AMP 9P LPF 9 4
58. PTHOMO4BE471TS HERMISTOR D506 507 LA 501DD LED D508 514 DA204U DIODE D601 602 DA204U DIODE D603 5 0020 VARISTOR ISPLAY UNIT X54 3330 20 C501 Os Ic B30 2151 05 LED RED GREEN 502 505 BU4094BCFV OS IC C506 507 TA78LO5F OS IC 92 0628 05 CHIP TAN 100 10WV 0501 25 4116 TRANSISTOR TKR 850 DISPLAY UNIT X54 3330 20 TX RX UNIT X57 6270 XX Desti nation 0502 2SA1586 Y GR RANSISTOR CC73GCH1H331J 3 0504 UPA672T FET CK73GB1C104K 0506 DIGITAL TRANSISTOR CK73GB1H C PARTS LIST Desti Ref No Address Parts No Description nation Address Parts No Description 0507 672 92 0628 0 0508 114 DIGITAL TRANSISTOR 73GB1C 510 511 A114EUA DIGITAL TRANSISTOR K73GB1H 512 514 PA672T FET 73GB1H 516 519 PA672T FET 73GB1C 0521 524 PA672T FET 73GB1C223 0525 25 1824 92 0628 05 73GB1H102 GB1C104l T X57 6270 XX FB1C334K C73GCH1H030 C73GCH1H010 C73GCH1H040 C73GCH1H060 C73GCH1H070 92 0628 05 73GB1H103 92 0628 05 73GB1H102 92 0628 05 C73GCH1H 73GB1 C73GCH C73GCH C73GCH1H CK73GB1H102 CK73GB1H103J 7 040 7 050 DUDA CK73GB1H471 C73GCH 73GB1 C73GCH C73GCH 92 0519 7 736 736 7 CK73G 030 040 040 060
59. RS 232C output signal for FPU External monitor switch input RS 232C input signal for FPU No connection Auxiliary inpu Auxiliary inpu ectab No connection No connection No connection No connection VCO RX Unit X58 4800 XX Connector No Terminal No Terminal Name Terminal function Prescaler RF signal input Common 5V input Lock detector for RX PLL Enable input for RX PLL Data input for PLL Clock input for PLL Reference frequency signal input Ground Switching signal input for RX VCO 8V input through the ripple filter RX PLL lock voltage QV input through the ripple filter No connection Connector No N aR 1 0 BR WYN Terminal No RX VCO output Ground Terminal function CN300 Prescaler RF signal input Common 5V input Lock detector for TX PLL Enable input for TX PLL Data input for PLL 51 TKR 850 Connector Terminal Terminal No No Name TERMINAL FUNCTION Terminal function Terminal No Terminal Name Terminal function Clock input for PLL Reference frequency signal input GND STT 8CL 9CL MO Ground Switching signal input for TX VCO 8V input through the ripple filter RX PLL lock voltage 9V input through the ripple filter Modulation signal input VO G N oO B Connector Terminal Terminal No No Nam
60. SSG DEV 1 5kHz 24 40 SSG Audio analyzer VIVM Oscilloscope Rear RX ANT TEST SPKR jack SPO pin 12 18 RD outut level Wide 1 Connect SSG to RX ANT CH 2 Wide SSG output 53dBm 501 uV SSG 1kHz SSG 1 5kHz Narrow 2 CH 2 Narrow SSG output 53dBm 501 uV SSG MOD 1kHz SSG 1 5kHz RX ANT CONTROL 10 jack RD pin 10 4 7kQ load 19 RA outut level Wide 1 Connect SSG to RX ANT CH 2 Wide SSG output 53dBm 501 uV SSG MOD 1kHz SSG DEV 1 5kHz Narrow 2 CH 2 Narrow SSG output 53dBm 501 uV SSG MOD 1kHz SSG DEV 1 5kHz RX ANT CONTROL jack RA pin 11 4 7kQ load 20 Maximum deviation Wide 1 Connect AG to the MIC terminal Low CH TX VCO low Center CH VCO center High CH TX VCO high Deviation meter filter HPF OFF LPF 15kHz De emphasis OFF AG 1kHz 50mV Terminal load Transmission MOD ANA Deviation meter Oscilloscope AG 2 Low VCO low Center VCO center High CH TX VCO high Transmission PC adj Adjust to point of opening squelch PC adj Adjust to point of opening squelch 0 1kHz PC adj 2 05kHz 0 1kHz TKR 850 Item Condition ADJUSTMENT Measurement Adjustment Test equipment Unit Terminal Parts Method Specific
61. amplifier 629 The 4W audio output can be provided to external 4 ohms speaker through the 15 pin test connector SPO SPG on the rear panel 2 5 Squelch Circuit The output signal from 1 9 enters FM IC again then passed through a band pass filter The noise component output from 1 9 is amplified by 7 and rectified by D5 to produce a DC Voltage corresponding to the noise level The DC voltage is sent to the analog port of the CPU 604 ICQ outputs DC voltage RSSI corresponding to the in put of the IF amplifier Display unit X54 B 2 Display unit X54 A 2 3 Transmitter Circuit The transmitter circuit consists of the following circuits 3 1 microphone circuit 3 2 modulation level adjustment cir cuit 3 3 driver and final power amplifier circuit and 3 4 auto matic power control circuit 3 1 Microphone Circuit The signal from the microphone is passed through AGC circuit located in display unit X54 333 so that it does not saturate This circuit consists of 1 501 D501 D502 0501 and 0502 The AGC is operated by controlling the and side levels of amplitude using the current obtained by posi tive and negative detection of the amplified audio signal The audio signal goes to control section of TX RX unit X57 627 B 2 from display unit X54 333 The transmit audio signal goes to the input of the multi plexer IC IC605 for microphone muting The audio signal is amplified by 1 610 input t
62. amplifier FET TX drive amplifier TDO Test data output to JTAG connector TDI Test data input to JTAG connector Test reset to JTAG connector FET Final amplifier FET RF switch TCK Test clock to JTAG connector MS Test mode select to JTAG connector Transistor DC switch NC14 Not used No connection CVDD VDD for core CPU 1 8V HPIENA Not used Pull up Vss GND CLKOUT Not used No connection HD4 HPI data bus X1 16 515MHz System clock X2 CLKIN 16 515MHz System cloc Zener diode Voltage reference iode Surge absorption D D iode RF detector Zener diode Surge protector Diode Reverse current protection Varistor Current protector Surge protector Reverse connection protection RS DSP reset input Not used No connection 105 A6 Not used No connection Display Unit X54 3330 20 106 Vss GND 107 109 7 9 Not used connection 110 NC15 Not used No connection 111 Vss GND 112 DVDD VDD for I O pins 3 3V 113 119 06 012 Not used connection 120 HD5 data bus 121 123 D13 D15 Not used No connection 124 HD6 HPI data bus 125 CVDD VDD for core CPU 1 8V 126 NC16 Not used No connection 127 HDS1 HPI data strobe 1 Pull up 128 Vss GND 129 HDS2 HPI data strobe 2 Pull down 130 DVDD VDD for pins 3 3V 131 134 A10 A13 Not used No connection 135 HD7 data bus 1
63. be set execute a single output function If the port type for an AUX Ports 1 6 is set for AUX Output it will also appear AUX Output window for function programming The output logic of AUX Output can be set as either active High or active Low by the Logic Type function Active High outputs a High 5 when the pro grammed condition becomes valid active Low outputs a Low 0 when the condition becomes valid 18 Channel Select AUX Ports 1 4 1 or all 4 can each be set for nel Select providing up to 16 channel selection capability These are 1 to 4 bit Binary Coded Decimal BCD inputs AUX 1 is least significant bit LSB When all of AUX O Ports 1 4 set to Channel Select 1110 input LSB on he right side signifies the Channel 1 and 1101 input sig nifies the Channel 2 When the Channel Select function is set to any AUX ports the Channel X function Channel Up Channel Down Channel 1 etc can not be set to the AUX Input ports but can be set to the PF Keys Normally he channel control is controlled by the Channel Select func ion If the Take Over function is executed the channel con rol is disabled to be controlled by the Channel Select and enabled to be controlled by the PF Keys 19 DC Power Save The TKR 850 has the DC Power Save feature The DC Power Save Mode is activated when the DC Power Save On function is executed When the DC Power Save Mode is activated all
64. decoder is momentarily disabled i Table Sub Table No Select Signalling changes to the Multi Table Sub i Table in Multi Table No Select Signalling changes to the Multi Table Main i Table in Sub Multi Table No Select Signalling changes between Multi Table Sub and Multi Table Main Dec Disable Disables the decode operation Dec Enables the OT DOT decode operation Dec Disable Enable Toggles between disabling and enabling the OT DOT decode operation Enc Disable Disables the QT DOT encode operation Enc Enable Enables the OT DOT encode operation Enc Disable Enable Toggles between disabling and enabling the OT DOT encode operation Repeat Disable Disables repeater operation Repeat Enable Enables repeater operation Repeat Disable Enable Toggles between disabling and enabling repeater operation Reset Resets to default condition set up by FPU DC Power Save Off Activates DC Power Save Mode Off DC Power Save On Activates DC Power Save Mode On DC Power Save On Off Toggles between DC Power Save Mode On and Off TKR 850 Programmable Function OPERATING FEATURES Description Scan Off Inhibits scanning Scan On Starts scanning Scan On Off Scanning is toggled between being enabled or inhibited Scrambler Off Disables an installed optional voice scrambler board
65. ee ie Pius 483 W x 88H x 340 D mm 111 110 9 7 5 300 086 Sensitivity 0 45uV Adjucent Channel Selectivity 83dB 25 2 754 12 5kHz Intermodulation ue ct et 72dB Spurious amp Image Rejection 90dB Audio Output Ext AW at 40 less than 5 distortion Audio Distortion Ext Speaker Less than 2 596 at 1000Hz Band Spread ee 5MHz TRANSMITTER Measured by ETS 300 086 RF Power 40W adjustable to 25W 10096 duty 25W Modulation LiMIting 5kHz at 25kHz 2 5kHz at 12 5kHz Spurious Emission lt 1GHz gt 1GHz FM Noise 2 25kHz 50dB 12 5kHz 45dB Modulation Distortion Less than 3 at 1000Hz Microphone Impedance 6000 Band Spread 30MHz KENWOOD CORPORATION 14 6 Dogenzaka 1 chome Shibuya ku Tokyo 150 8501 Japan KENWOOD SERVICE CORPORATION P O BOX 22745 2201 East Dominguez Street Long Beach CA 90801 5745 U S A KENWOOD ELECTRONICS CANADA INC 6070 Kestrel Road Mississauga Ontario Canada L5T 1S8 KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembr cker Str 15 63150 Heusenstamm Germany KE
66. side iy Foil side 30622M 4 113GP 29 020 90 AT2408N 10512 5 BU4053BCF SA7025DK NJ M78LO5UA AK4550VT M62364FP RH5VL42C BU4094BCFV TC74LVX 4245FS M62354GP 2 TC74VHC4040FT 6 69 320VC5402PGE TA75WOIFU TA75SO1F NJ M7808FA TA7808F ADM 202 TK14489V s ETE 8 227 D A 18 4 d OUT 8 1 in GND 9 n o e m sr Steg oa 0 0 BSB 0 x ac 2 5 c 8 9 9 Ww x P g lt LLI 5 pd ae E 2 25 29 5 3 Q 2 5 o 5 LO h 2 9 CC 5 5 5 0 b lt e z z ra e 2 21112122 dnp 172 0755 02 2 BLK 7 AM E REN GND 81 RED BLK RED 2 3 4 5 FINAL UNIT 45 3630 10 K E 11 2 12 Foil side view Od n mam 2 EN P PEN QD Ref Address Ref Address Component side 2 90
67. such as a DC power supply or duplexers in the accessory cabinet 1 Place the optional accessory in the cabinet as shown be low 2 necessary attach cushions G13 1801 04 and or G13 1802 04 to the top plate J21 8402 04 in order to adjust the space between the cabinet and the top plate Then insert the 3 tabs of the plate into the slots in the side of the cabinet High middle or low positions are available To afix the plate inset and tighten 2 screws on the other side of the plate 16 You can also flip the top plate upside down to adjust a height of the cabinet space Tighten screws Hardware fixture Cushion Insert the plate G13 1801 04 or tabs to set the G13 1802 04 height position high middle 3 or low O oe o 9 The top plate be inverted to adjust the height of the cabinet space Fig 5 5 Key Cover To avoid accidentally pressing the keys you can install the key cover 1 Install and fix the key protector using the 5 supplied screws N35 3006 46 6 Desktop Repeater When you use the repeater on the desktop attach the 4 spacers to the base of the repeater as shown in figure With these spacers attached the front panel will not touch the desk surface Pegs Firmly press these pegs J59 0302 05 through the spacers to afix them to Peel off the backing paper the repeater to attach these spacers J02 0492 04 J02 0475 05
68. supply ICs which produce power used for the display circuit unit X57 2 CONTROL vice Data such the operating status are programmed into 600 the EEPROM 600 14 754 01 MHz 5 3 CPU Clock Shift There are the 14 754MHz clock for the CPU 1 604 and the 16 515MHz clock for the DSP 1 618 the control sec tion of TX RX unit X57 627 When these clocks are multi plexed with the reception frequency they become an inter beat signal prevent this by tuning 0600 and 0604 the clock frequency is shifted Shift on off can set esisi h h ing through programming 1 5 4 Shift Register Circuit 0600 Serial is sent to the shift register 1 502 to 1 505 BEXT located in display unit 1 602 1 623 1 7 located in SHIFT unit from the CPU 1 604 to control various functions in the LLL 4 cus et tee LL Fig 7 Control circuit Display unit X54 333 20 A 2 lt lt 1 6 Oo KEYS CLK SOE CLK SOE CLK SOE CLK SOE STB1 STB1 STB1 STB1 51 SO Shift Reg 2 Shift Reg 3 BU4094BCFV BU4094BCFV RE um HB e KEY LAMP TX BUSY Main DC 1 6 Fig 8 Display circui
69. ter the end of firmware writing fter connecting a PC and FPU cable to the radio P G appears on LED display Red TX LED lights up Write test frequency Connect the unit to a suitable Write the test and shipping fre End of test frequency writing DC power supply quency to the radio Turn the DC source switch on after connecting a PC and FPU cable to the radio E1 appears on LED display Green BUSY LED lights up Setting 1 Connect the unit to a suitable Turn the power switch on afte DC power supply r connecting a PC and FPU cable to the radio Start up the program for the adjustment RX PLL lock voltage RX VCO A high CH 11K CH 10 K2 K3 E DVM TX RX A 2 RX CV A3 2 A low 10 CH 1 K2 K3 E RX VCO TC350 3 RX VCO B high CH 3 K K2 CH 11 K3 E 8V or less 4 RX VCO B low 6 K2 K3 E TX PLL lock voltage 1 TX VCO high CH 3 2 TX VCO low CH 1 8V or less A2 TX VCO TC350 K K2 E TC351 K3 Check 8V or less RX frequency Note RX frequency means the local frequency of the RX VCO So its 1 Connect the frequency counter to CN3 then measure the frequency CH 2 f counter PC adj 50Hz or less Test CH 44 85MHz requency is wanted frequency minus the IF frequency 7 Setting 1 Remove 8 pin cable and th
70. to 5 2 0 to 1V Distortion Meter Capability Input Level 396 or less at 1kHz 50mV to 10Vrms Voltmeter Measuring Range Input Impedance 10 to 1 5V DC or less or greater 40 Dummy Load The following parts are required for adjustment Test cable for local microphone NC GND PTT TXD1 PC serial data from radio MIC GND MIC HOOK RXD1 PC serial data to radio NC ONOOPWN MIC connector Front panel view Test Channel Default 22 AJ Ww gt o 459 90 460 00 499 90 500 00 1419 90 420 00 479 90 480 00 519 90 520 00 439 90 440 00 Approx 40 The following test cables are recommended Plug cord Part No E30 3360 08 PTT SW Test cable for microphone input To connect the TX RX unit A 2 CN14 to the TX RX unit B 2 CN602 while in servicing you can use the 36 pin flat cable E37 0979 05 which is available from the KENWOOD parts center Flat cable 36 pin about 256mm Condition ADJUSTMENT Measurement Adjustment TKR 850 Test equipment Terminal Unit Unit Parts Specifications Remarks Method Setting amp Firmware writing 1 Connect the unit to a suitable 2 Turn the DC source switch on a 3 Write the firmware to radio A DC power supply
71. 0 NO 18n 4 7n 39n 2SK3478 21 12 10 56 22 12 18 27 27 NO 7p 12 6p 10 1k 5 6 1k 27 8 2n 68n 2SK3478 22 D2 O2DZ5 1 Y 01 2SC5110 0 Q8 2SC4116 Y TK11050M D3 10 155355 Q2 2SC3356 R24 09 DTD123EK 2 NJM78LOSUA 04 5 HSM88AS 2SK2596 TA75WO1FU D7 75 5 27 04 25 3075 RBOS1L 40 Q5 cx MINISMDCOSO 02 Q7 2SK1824 1 Els 951 52 5 1 A 2 CN15 X RX UNIT X57 6270 XX 90 TKR 850 TKR 850 850 BLOCK DIAGRAM TX RX unit CONTROL TX RX unit X57 627 B 2 X57 627 A 2 MM ECC C it Fd ge
72. 04U DA204U DA204U 2040 2040 DA20Z4U C602 BUZ0SA4BCFV Nco 9 2 5 Net 1 16 15506 04 S 755 470p STB3 5 TC74LVX4245FS TC74LVX4245FS NUO Uu2 n0 1uddun0o0srzookxkurzu sunigor wuio uwumsun u usc s so 24 24 20 00202 gt gt lt lt DAT DATA 2 cca 2 C679 10010 R684 47k 7 1 CLK ICLK as DIR VCCB1 DIR VCCB4 C756 10u10 10410 R685 100k CONVERTER 98 c c 15225 72 8952 1 615 2 07 eR676 82k M62364FP A2 B1 2 B1 HCSL BU4053BCF 0617 i A3 B2 2 HRW wing VINE DA204U o 04 a s VDD in 0606 625 4 4 HCNTL 1 N VOUTS SURGE lt Yo Y 3 2 98 5 4 5 4 HCNTLO E 5 m zyzz z 5 gt voute VOUT3 PROTECTOR E gt 21 200 MB 6 5 6 85 El wu T m 49 ns ac S Elea 53 16613 0604 2 1 9 9 e US fe 6 7 6 7 6 z Su SY COUNTER 25 1824 z zb Ox 2205 2 B7 B7 5 2150 DC tag 52 3 i oum X VDAref SWITCH m m m 203 4 m m m re cune IGND 1 B8 IGND 1 B8 u RESET GND2 2
73. 05 PIN ASSY RK73GB 470 08 0877 05 ODULAR JACK RK73GB 2 2K J31 0543 05 e COLLAR LH 5 1 5 RK73GB1J 470 RK73GB1J 00K CP501 504 RK75GB1J471J R92 2687 05 5 6 R502 503 R92 1252 05 RK73GB1J471J 40 J R505 RK73GB1J683J R R COM 470 R 0 OHM PR 6 p p 8 0 8 12 6427 05 47 R506 GB1J103J R507 GB1J682J 576 0426 05 R508 GB1J102J 02075 1 R509 GB1J103J R R 155355 DE 5 RK73GB1J224J R R 88 5 DE 5 681 103 25 5 27 5 681 104 RB051L 40 DE C3 R5 RK73GB1J154J 15 0 050 02 RISTI R5 R92 2565 05 1 355 ODE R92 2023 05 0 5 5 A6W 2W 2W 2W 2W DSA3A1 DE R92 2565 0 K11050M ALOG IC E R92 2023 0 JM78L05UA POLAR IC C I RK73GB1J102J TA75WO1FU OS IC RK73GB1J103J 25 5110 0 RANSISTOR RK73GB1J681J 2SC3356 R24 RANSISTOR R604 605 RK73GB1J102J 2SK2596 FET R606 RK73GB1J473J 2SK3075 FET 16W 16W 16W 16W 16W C C C cC VR501 R32 0643 0 FIXED VARIABLE RESISTOR 25 3478 21 VR601 R31 0630 0 VARIABLE RESISTOR 2SK3478 22 FET 2SK1824 FET 501 506 570 0410 TACT SWITCH 25 4116 RANSISTOR 507 568 0410 0 PUSH SWITCH DTD123EK DIGITAL TRANSISTOR D501 502 HSM88AS DIODE
74. 2 11 11 4 2 DC SWITCH R133 CONTROL B 5 C374 8359 777 777 24 o 2 nimimm OSC 0 5 47 1 2 OR LASS 019 os OjO 252 05 my L353 0350 x 252 Sod EE 2 0350 958 Seo PLS R162 91 DTCA14EUA Si FINAL UNIT J 5 XR353 222 xD352 13 R353 1353 0352 356 25 508 52 DC SWITCH mse 45 3630 1 A TI t 4 pem 1 270 2 2 Ne 777 7 77 0 M a GND 1 2 amt FREQUENCY 5 545227 ENIS SFR 8 43 R362 RIPPLE FILTER 25 1 om CONTROL M m GND 1 1 GND FREQUENCY xL 1 in STT 2 2 51 d A ors fake em NS 4 7k ola 254918068 18 254116 16 51 VCO OSC 7 7 SRR 2 2 SRR 0 S 158 5 e 2 2 3 3 Sm 0 DC SWITCH 4 3 3 Lr eR364 R91 m BCLR 90354 e e e 4 74 un cv 4 4 o u 10k DTC114EUA 4 7 2 1 x2 m e asm 5 1 Sums eCN1Z 5 5 9cL xR350 XL350 j x um 1 SELLE nm Y 22 22 SIS VOLTAGE 40 6009 05 ote A 5 11 OST mice nox Si ol decucatoe 5 6 I REGULATOR 3 sc
75. 352 353 25 4116 TRANSISTOR 0354 DTC114EUA DIGITAL TRANSISTOR CERAMIC TRIMMER CAP 8P 0355 25 4226 24 TRANSISTOR C C CD lt gt c0 c0 350 351 C05 0396 05 gt CN300 40 5699 05 ASSY CN350 40 5755 05 ASSY CN351 40 6098 05 ASSY TX PLL VCO 58 4810 10 11 2 12 F10 2377 04 ELDING CASE 304 305 CK73GB1H102K CHIP 1000PF C306 CK73GB1H103K CHIP C 0 010UF L300 L92 0148 05 CHIP C307 CK73GB1H471K CHIP 470PF 301 302 140 1575 34 FIXED INDUCTOR 15NH 308 310 CK73FB1E104K CHIP 0 10UF 301 302 140 1875 34 FIXED INDUCTOR 18 C311 92 0001 05 0 1UF L303 L40 1875 34 FIXED INDUCTOR 18NH L303 L40 2275 34 FIXED INDUCTOR 22NH 312 7 CHIP 5 0 312 00730 6 0 1303 140 2775 34 ALL FIXED INDUCTOR 27 C312 CC73G CHIP 7 0P 4 G 4 G L350 355 L40 1095 34 ALL FIXED INDUCTOR C3 CC73 CHIP C 10PF 356 357 134 4607 05 3 0073 CHIP 2 1356 357 134 4608 05 R CORE COIL L356 357 L34 4609 05 R CORE COIL C3 CK73FB CHIP C3 CC73GC CHIP C L358 361 L40 1595 34 ALL FIXED INDUCTOR 1 5UH C3 CC73GC CHIP C L362 L40 2775 34 ALL FIXED INDUCTOR 27 C3 CC73GCH CHIP L362 L40 3371 34 ALL FIXED INDUCTOR 33NH C3 92 0514 0 CHIP TAN
76. 36 141 14 19 used connection 142 CVDD D for core CPU 1 143 144 NC17 NC18 used No connection Ref No Part name Description 501 MOS IC MIC amplifier 1 502 505 MOS IC Shift registers 1 506 507 51 Voltage regulator 0501 502 Transistor Level controller 0504 DC switch Q506 i DC switch Q507 DC switch Q508 i DC switch 0510 511 switch 0512 6514 FET DC switch 0516 519 DC switch 0521 524 FET DC switch Q525 FET PTO switch D501 502 Diode AF detector D503 505 LED LED D506 507 LED 7 segment D508 514 Diode Surge absorption D601 602 Diode Surge absorption D603 Varistor Current protector 26 TKR 850 DESCRIPTION OF COMPONENTS TX RX Unit X57 6270 XX Part name Description Transistor DC switch FET DC switch Transi Inverter DC switch Inverter Part name Description Buffer amplifier Voltage regulator D A converter Shift register AF mute switch DC switch DC switch DC switch FM IF system Voltage regulator EEPROM Voltage detector Wide Narrow switch Shift register D5 Diode Noise detection D7 Diode DC switch D8 Diode TX switch D9 Diode Surge protector C603 Bus transceiver C604 CPU C605 Multiplexer C606 Bus transceiver C607 608 AF amplifier C609 Flash ROM C
77. 603 606 TC74LVX4245FS 1 608 610 75501 1 614 4550 1C624 XC62FP1802P Note Components marked with dot are parts of pattern 1 0
78. 610 611 AF amplifier C612 Inverter C613 Counter C614 CODEC C615 D A converter C616 617 AF amplifier C618 DSP C619 AF amplifier C620 5 232 transceiver RX PLL VCO Unit X58 4800 XX C621 NAND gate C622 Multiplexer C623 Shift register 624 628 Voltage regulator C629 Audio amplifier C630 Voltage regulator Q1 3 1 RF amplifier 04 1 Wide Narrow switch DC switch pee TX PLL VCO Unit X58 4810 XX RF amplifier D11 Zener diode Surge protector D12 Zener diode Voltage reference D13 Diode Noise detection D600 Diode Surge protector D601 Diode Voltage reduction D606 625 Diode Surge protector D626 Varistor Current protector 0627 628 Diode reverse current protector D629 Diode Surge protector Ref No Part name Description 1 00 IC PLL 0300 301 Transistor Active filter Q302 Transistor Buffer amplifier 0350 351 VCO OSC 0352 354 Transistor DC switch 0355 Transistor Buffer amplifier D350 353 Varicap Frequency control Ref No Part name Description 00 PLL Q300 301 Transistor Active filter Q302 Transistor Buffer amplifier 0350 351 VCO OSC Current control RF amplifier Ripple filter DC switch nverte DC switch 0355 Transistor Buffer amplifier D350 353 Varicap Frequency control D354 355 Varicap Modulat
79. 73GB1J RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB RK73GB 1 0K 100 150 22K 18 270 270 33K 820K 680K 470K 220K 820 5 6 820 47 1252 05 1252 0 GB GB GB GB GB GB GB GB GB GB GB GB1J102J GB1J102J GB1J472J FB2A470J GB1J472J GB1J180J GB1J102J GB GB GB GB GB 252 05 GB1J392J 252 05 252 05 5 GB1J391J GB1J473J 252 05 252 05 GB1J473J CO C3 22229 gt C2 C 9 C2 C3 QOD 29 C C2 C2 47 J OK J 410K J 0 OHM 0 7 8 00 00 82 8 00 68 47 OK 27 47 00 TKR 850 PARTS LIST TX RX UNIT X57 6270 XX Desti nation Desti nation 0 OHM R707 709 RK73GB1J223J 47K R710 RK73GB1J473J R712 GB1J473J 33 R713 GB1J273J 00K R714 681223 Address Parts No Description Ref Address Parts No Description R92 0670 05 RK73GB1J472J RK73GB1J102J RK73GB1J333J RK73GB1J104J C C C cc RK73GB1J473J R92 1252 05 R6 RK73GB1J473J R6 R92 1252 05 R6 RK73GB1J473J R715 GB1
80. 8 4810 XX e xA3 SUB UNIT RX VCO PLL X58 4800 XX 3 Bid a a oo 45 3630 es e 16 8MHz 525 aig S es 1 26V A 2 CN1 s 5 FE lll eee a 1 08 ee B 1 54V 235 SWITCH 1 6 D A SHIFT 1 7 e e e E 0 77V 62354 CONVERTER RESISTER 4094 15 72 R368 ii 1 ise 2 6 25 101 E40 5703 05 9 m 6 2 r2 m ea uu FINAL UNIT 51 L352 BUFFER 1 1352 33 CN35 5 45 3630 icm R351 BUFFER 1 1 11 LAMP 17 GND 2 8354 33 3 0dBm 94 5 27 015 oT U TXVCO pl 0555 x Ox LAMP SES GND 2 2 GND 77 011 M USED FOR 2 25642261824 ola 0 3102 U RXVCOL Ooms rem 0355 TEA d e m 28C3356 R24 DC SWITCH DC SWITCH INVERTER FREQUENCY F x Uma C379 777 VO 1 6 0dBm aeneis 25 4226 824 C379 vo 1 gt lt 1 vo RF 023 9017 020 mI LL 21332 TS 7 x xT DTC114EUA DTC414EUA 78 19 DTC114EUA 8632 05 ral 4p 1 777 C e252x mus FREQUENCY
81. CH 390 6 0PF K2 R3 73GB CH 7 0 73GB CH 8 0PF K3 R3 73GB1J33 CH DUDE 92 0514 73GB 0320 92 0514 C321 C73GCH 0322 K73GB1H47 2 2 R3 73GB1J39 CH R3 73GB CH R3 73GB1J474J CH R3 73GB1J151J CH R3 73FB2A152J CH I 2 C323 73 1 224 0324 92 0002 05 0325 C73GCH1H040C C350 351 73GB1H471K C354 73GB1H471K R317 318 252 05 CH R319 73GB1J CH R320 73GB1J CH R321 73GB1J CH R322 73GB1J CH 0355 C73GCH 0355 C73GCH C356 C73GCH C356 C73GCH C357 73GB1 R350 353 1252 CH 354 355 K73GB1J CH R356 73GB1J CH R356 73GB CH R357 73GB CH TATE TALAT 358 359 C73GCH C360 361 73FB1E C362 C73GCH C363 C73GCH C363 C73GCH R357 73GB CH 358 359 K73GB CH R360 363 K73GB CH 364 73GB CH R365 73GB CH 364 365 73GB C366 369 C73GCH 370 371 C73GCH 372 373 K73GB 374 375 C73GCH R366 73GB CHIP R OK R367 73GB CHIP R 00 R368 73GB CHIP R 33 I GD OOD 0350 353 15 282 VARIABLE CAPACITANCE DIODE 1C300 SA7025DK MOS IC 300 301 2SCA116 GR TRANSISTOR 40 0302 25 4226 24 TRANSISTOR 350 351 25 508 52 FE C376 378 73GB C378 C73GCH C383 K73GB C386 C73GCH C386 C73GCH 00 22P
82. E 8 PTT 4 m R502 1k 419 it 9 MIG 0 LEVEL 22 212 vty 10 MIC 2 CONTROLLER 0501 2 52 4 1 HSM88AS Die Dew 2 8605 1k 11 H 1 0502 7 1 R503 10u10 9 125 1586 05 AF DETECTOR 3 6 Yo mix CN501 0 R507 zj O ON 5 RRR Ce mol 505 02 rye a 2 2 1 R506 LEVEL 222 mse 1 501 1 1601 0602 CONTROLLER 0502 NJM4558E o Oovly 18 0601 14 5 88 5 in a So 8 0877 05 DA204U DA204U OTS ul SETS 0601 602 e bd e 1 1 SS 0601 602 0603 DA204U MINISMDO20 _ ee D501 502 D503 505 D506 507 D508 614 HSM88AS B30 2151 05 50100 DA204U Q501 Q502 0504 507 512 514 25 41 16 25 1586 516 519 521 524 672 9506 508 559 513 0525 DTA114EUA 25 1824 1C501 1 502 505 506 507 NJIM4558E BU4ZO94BCFV TA78LOSF O N N un A 2 CN19 TX RX UNIT X57 6270 XX 201 2o N Fog 2 U N ior lt Por eCN3 WTH BAT RSW
83. EW 39 KES 4 EXTERNAL SPEAKER 94 PACKING eit rnt 41 SPECIFICATIONS 95 ADJUSTMENT enm 42 TKR 850 GENERAL SYSTEM SET UP INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni cians familiar with similar types of commercial grade com munications equipment It contains all required service in formation for the equipment and is current as of this publica tion date Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions which are issued as required ORDERING REPLACEMENT PARTS When ordering replacement parts or equipment informa tion the full part identification number should be included This applies to all parts components kits and chassis If the part number is not known include the chassis or kit number of which it is a part and a sufficient description of the required component for proper identification SYSTEM SET UP Merchandise received Choose the type of transceiver Repeater programming amp setup See page 11 power Installation in the duplexer optional space YES External speaker KES 4 installation PERSONNEL SAFETY The following precautions are recommended for person nel safety DO NOT transmit until all RF connectors are secure and any open con
84. HEAD MACHINE SCREW 0 3419 05 32 3006 4 HEAD MACHINE SCREW 0 3427 15 DC CORD ACC 32 4008 4 HEAD MACHINE SCREW E31 3228 05 LEAD WIRE W 33 3006 4 HEAD MACHINE SCREW 35 3006 4 G HEAD MACHINE SCREW 37 0808 0 WIRE W 37 0902 0 D WIRE WI 35 3014 4 5 5 G HEAD MACHINE SCREW E37 0903 05 D WIRE W 35 4006 4 5 5 6 5 G HEAD MACHINE SCREW LEAD WIRE WI 67 3008 46 EAD SEMS SCREW W 6 5 E37 0904 0 E37 0905 0 LEAD WIRE 87 2606 4 HEAD TAPTITE SCREW 87 3005 4 HEAD TAPTITE SCREW E37 0906 05 LEAD WIRE WITH E37 0908 05 LEAD WIRE W 87 3006 46 EAD TAPTITE SCREW E37 0909 05 LEAD WIRE W E37 0911 05 LEAD WIRE 107 0247 05 37 0912 05 LEAD WIRE E37 0913 05 LEAD WIRE WITH E37 0934 05 LEAD WIRE WITH E37 0964 05 D WIRE WITH H UNIT 45 3630 10 11 2 CC73GCH1H100D C90 2146 05 CK73FB1E104 70 0402 05 BOAR CK73GB1H47 CC73GC E37 0965 05 D WIRE W E37 0967 05 FLAT CABLE 36 p 0 009 25 0 10UF p 4 C CO cC rc F05 1537 05 F LADE 15A 32V 109 0445 05 508 CC73GC 109 0471 05 OTOR CK73FB F10 2374 04 G PLATE TX RX CK73GB F10 2379 04 G CASE TX RX COM CK73GB CK73FB PC PC PC PC PC
85. J103J R717 718 K73GB R719 GB1J104J 720 GB R721 GB R6 R92 1252 05 R6 GB1J R620 622 GB1J R623 624 252 R625 628 GB1J 722 GB1J 723 724 1252 726 GB1J 727 1252 728 729 K73GB1J R629 R92 1252 R630 631 RK73GB1J R633 634 RK73GB1J R635 636 RK73GB1J R637 92 1252 R730 73GB R731 GB R732 GB R733 R734 GB R638 RK73GB1J R639 R92 1252 R640 73681 R641 2 1252 R642 73681 R735 GB R736 737 R738 GB R739 GB R740 GB R643 73681 R644 73681 R645 646 K73GB1J R647 652 73681 R653 654 92 0670 I R655 73GB R656 73GB R657 661 73GB R662 73GB R663 667 K73GB R747 R749 752 R753 754 R755 756 R758 I R668 73GB R669 671 K73GB R672 674 73GB R675 73GB R676 73GB R760 R762 R763 764 765 766 R678 K73GB R679 680 73GB R68 73GB R682 K73GB R683 73GB R767 R768 769 770 771 772 R684 73681 685 686 73681 R687 K73GB1J R688 690 73681 693 92 1252 R773 R774 775 776 777 C3 I RK73GB1J RK73GB1J RK73GB1J RK73GB1J 92 1252 R778 R779 R780 R781 R782 73681 92 1252 R R783 R RK73GB1J R R R784 R785 R786 R787 92 1252 73681
86. K4 K5 EPR EPR SE VLI e e VLI 5C e MIG NC e NC SUB UNIT MIG MIC RSS e RSS 1 20 asa a ASQ TX VCO PLL CN502 GND GND e e NC 58 481 DET 9 DET nc e NC 36 1 CN14 CN606 29 30 NC Nc oofoo a arvu 2 NC 8 46458 48 3 59 RXD2 NCjoo 2 70 RXD nz6orzrT TXD2 MON oo O 9 TXD4 M 11 0 5 epe n CN601 Al2 5 o D 2 wc 1 AI3 TXI DG ATXG DG TD 101199 49 TD t A102 TA 102 4 A103 RD AlO3 ee e o 104 c1 RA 4 9 o RA alos RXG 105 91 sca 106 lt SPM 196 SPM 283 4 3 JRQERZREL LY 8 5 8 TEES CLRC CONTROL 1 0 TEST SPKR Ly NC PTO MN 5C 3 6 9 12 15 PTT GND DISPLAY UNIT B 2 15 E 2 BA X54 333x xx 25 es x 1 2 04 OF 04 5 5206 6 3 99 8 lt lt lt 5 66898 1 4 7 10 13 v A E 1 01101 10 Z Z 54 6368 2 6355 ejh 12 K3 Foil s
87. Latch data input for DA converter Backup signal output Power switch input High temperature detector signal output Output enable for shift register Ground Modulation signal input for VCXO Modulation signal input for VCO Ground Ground No connection No connection Power supply ou er powe switch Power supply ou er powe switch Power supply ou er powe switch Power supply ou er powe switch No connection Common 8V output Common 8V output Earth Power supply input Power supply input gt 8V output during transmission TX power control signal output Fan control signal output RF power down signal input Main DC BAC High temperature detector signal UP status input input Receive signal input Coaxial Transmission signal output Coaxial TX RX Unit X57 6270 XX B 2 Control Section Terminal Terminal Name Terminal function 58 58 0 5 o oo Power supply output after power switch Power supply output after power Switch Ground No Connection Serial data output Power switch input Strobe data for shift register Clock data output Output enable for shift register PTT input TXD output EY input 1 Hook detection input RXD input EY input 2 EY input 3 EY output 4 EY output 5 Volume control input for AF signal Common 5V output ic ground
88. NWOOD ELECTRONICS BELGIUM echelsesteenweg 418 B 1930 Zaventem Belgium KENWOOD ELECTRONICS FRANCE S A 13 Boulevard Ney 75018 Paris France KENWOOD ELECTRONICS U K LIMITED ENWOOD House Dwight Road Watford Herts WD1 8EB United Kingdom KENWOOD ELECTRONICS EUROPE B V Amsterdamseweg 37 1422 AC Uithoorn The Netherlands KENWOOD ELECTRONICS ITALIA S p A Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBERICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Centrecourt Estate North Ryde N S W 2113 Australia KENWOOD ELECTRONICS HONG KONG LTD Unit 3712 3724 Level 37 Tower one Metroplaza 223 Hing Fong Road Kwai Fong N T Hong Kong KENWOOD ELECTRONICS TECHNOLOGIES S PTE LTD Sales Marketing Division 1 Ang Mo Kio Street 63 Singapore 569110
89. Programmable function input output 2 Programmable function input output 3 Programmable function input output 4 Programmable function input output 5 Programmable function input output 6 56303626900 9 82 09912 Connector Terminal Name Terminal function SB SB NC Power supply output after power switch 1A maximum Power supply output after power switch 1A maximum No connection Ground Ground Speaker ground RX data output Equal to D sub connector terminal No 10 RSSI output Analog signal output Internal speaker input Auxiliary output 1 Auxiliary output 2 External speaker output Auxiliary output 3 Auxiliary output 4 Auxiliary output 5 99666 6060206967 850 TKR 850 WIRING
90. R 850 K3 Foil side view K2 12 11 Component side Lb Oe Pattern 1 Pattern 2 Pattern 3 Pattern 4 Foil side 76 157189 151 o 9 1 g 64 TRT 1 3 ell MBE IPI ojlo ESES IS SHA 75 11 2 72 0758 57 6270 2 10 Ref Ref 55 Address Ref 55 No Address Ref No Address Ref Address R S TKR 850 BOARD VIEW TX RX UNIT 57 6270 2 10 KE 11 2 12 Component side view Foil side SS ae Z 14 78 2 3 we 4 wr 06 2 4 5 ie a alm g 600 53 E ROB RC 850 8690 eb Ju d 5 it 22 le 6 1 7 1178 8 i 8 6723 i Em tu 1 il
91. TECTOR REGULATOR 5 S al A 515 13 60 NJM78LOSUA X45 3630 XX n 3 1 IN Our eRS 100k 51 0 1 R54 3 a TK11050M 2 o o n o 2 875218 p T 12 97V 2 13 60 M REVERSE 38 lt 77 2 5 on CURRENT A 1 inl PROTECTION Sela lea 2 41 41 12 m 777 e MINISMDCO50 02 ale M PROTECT OF REVERSE O n CURRENT CONNECT ON a SFS THERMOSTAT ze PROTECTOR 777 Ul lt 52 39K 4 e CHARGE 7 77 77 BACKUP ws 482 nso D7 r n SURGE oals lt Tema 272 UN GND ecN amp 0 123EK 1 pc switc H Le X45 3630 XX 777 17 c21 22 c32 c33 42 C44 c45 c57 58 c59 c83 118 R14 R15 R16 12 L3 L8 as 10 12 9p 12 27 18 33p 22 NO p 10 Sp 7p NO o NO 18n 4 7n 39n 2SK3478 22 11 2 27 12 18 15 18 5 Sp 10 5p NO NO
92. Terminal E PTT TXD ME MIC HOOK RXD NC connection Power supply output after power switch Ground PTT input TXD output MIC ground MIC signal input Hook detection input RXD input No connection Terminal function CN1 Use for RX helical BPF tuning Coaxial CN2 Use for RX MCF tuning MIC ground 1 HOOK RXD SOE PTT TXD KEY output Quo SO MIC signal output Volume control output for AF signal Common 5V input KEY input 4 KEY input 5 KEY output 2 KEY output 3 1 Hook detection output RXD output Output enable for shift register PTT output TXD input CN3 Use for RX Coaxial requency adjustment CN4 Use for RX MCF tuning CN14 To X57 B 2 control section of TX RX unit OMAN connection Detection signal output connection Ground Squelch signal output RSSI signa No connection Data input for PLL Clock input for PLL output 49 TKR 850 50 Connector No Terminal No Terminal Name TERMINAL FUNCTION Terminal function EE Y N N O EPT LDR LDT DT CK Enable input for RX PLL Enable input for TX PLL Lock detector for RX PLL Lock detector for TX PLL Data input Clock input Strobe input for shift register RF power down signal output
93. a 205 2 R306 15 1000 FIN 4 o moe 2 10k 470 m ACTIVE De 2 ago 595 Non 777 ACTIVE 5311 FILTER 22 C304 5 2 ne o m EE SQ OPEN 50 CLOSE 1 FILTER 10k 22 16 C304 5 2 779 1000 o m lo 0301 1000 0301 ni 026 m 1 97 1 80V SQ OPEN 0 21V 2SC4116 GR R310 LOR 3 E 1 37V 1 230 50 CLOSE 3 00V 25C4116 GR eR310 17 LDT 3 2 4 us WIDE NARROW ays 7 27 Ika el R304 100 4 A lanm 026 1 5 53 u oL 18 R304 100 EPT 4 21 Ome S DTC114EUA 330p a 1 1 zi m n Awe Uc 4 m R303 100 5 535 19 5 N 1 R303 100 bo 09 5 22 E N 1 5 28 moe men CP 6 SURGE ps 9 D 1 30020 R302 100 6 GND a rx e 8902 100 T PROTECTOR WIDE NARROW eC67 Em 1 7 SWITCH wo gt 5300 REF 7 77 7 R304 488 902 th 330p o7 NOISE DETECTION 1 1 R301 100 1 55 41217 18 DAN235K Wale n E 25 4617 5 AAA 5 2 5 01 L34 4526 05 L34 4526 05 apes 2 2 2 2 3 7 eR300 10 03 NOISE 2 013 R300 10 777 25 3357 28C3356 R24 5 Dum 19 33 n M 5 742 eR319 33 2 o ad 5
94. a x a a ad 8 218 ox a x VOLTAGE SIR FI on oe ee ee ojo 1 N o REGULATOR 515 C162 0 01u E 1 ce eo N 5 EE 5 11 N 22 Q N S y of 8 1 5 2 e 5 5 o 1 u o 52 EREI y 812 n a eo 8 VOLTAGE FIER FU 1 ACTIVE FILTER 0500 PLL 777 th REGULATOR 5 0300 25C4116 GR SA7025DK 2 L A TT 024 025 z 2SC4116 GR SACOZSOK o ma B 1 78V 1 46 B 1 45V 95 DTD114EK DTC114EUA 5 1 ne 6 8 0 E 1 03V E 0 79V E 1 28V d 1 11 1 58 wie ied wre C 6 68V 6 50V 7 02 FE DC SWITCH DC SWITCH i N 37 1 1 B 12 2 m N x 320 90318 02 0306 l 8316 85220 8318 Tes x ERIT 4 Et 777 13 E 1 5k 5 E gt 1 5k 2 2u10 2 2410 R309 1 2 21010 2 2110 9 R305 305 1 S 2 330 14 8305 C305 mig CN300 1 o CN300 Ww 220 T 223777 R70 eR60 eC216 UT mee 0 om RD en306 0 1000 FIN 1 H
95. ations Remarks 21 DOT balance Wide 1 CH 2 Deviation meter filter HPF OFF LPF 3kHz De emphasis OFF Transmission Narrow 2 CH 2 Transmission MOD ANA or Deviation meter Oscilloscope Rear TX OUT 22 QT deviation Wide 1 CH 2 Deviation meter filter HPF OFF LPF 3kHz De emphasis OFF Detector p p 2 Transmission Narrow 2 CH 2 Transmissi 23 DOT deviation Wide 1 CH 2 Deviation meter filter HPF OFF LPF 3kHz De emphasis OFF Detector Peak hold Transmission Narrow 2 CH 2 Transmissi 24 CW ID deviation Wide 1 CH2 Deviation meter filter HPF OFF LPF 15kHz De emphasis OFF Transmission Narrow 2 CH 2 Transmissi 25 Test tone deviation Wide 1 2 Deviation meter filter HPF OFF LPF 15kHz De emphasis OFF Transmission Narrow 2 CH 2 Transmission MOD ANA or Deviation meter Oscilloscope PC adj Make the de modulated waves into square waves Oscilloscope DC range flat A part A PC adj 0 75kHz 0 05kHz PC adj 0 35kHz PC adj 0 75kHz PC adj 0 35kHz PC adj 2kHz 0 05kHz TKR 850 ADJUSTMENT Measurement Adjustment Item Condition Test equipment Unit Terminal Parts Method Specifications Remarks 26 TA TX audio input
96. ations speed normally 115200 bps and communications port in the configuration item 3 Set the firmware to be updated by file name item 4 Turn the TKR 850 power on with the PF1 key held down Hold the key down for one second until the 7 segment display changes to P G When ap pears release your finger from the key 5 Check the connection between the TKR 850 and the per sonal computer and make sure that the TKR 850 is in the program mode 6 Press write button in the window A window opens on the display to indicate progress of writing 7 writing ends successfully the TX LED on the TKR 850 lights 8 If you want to continue programming other TKR 850s repeat steps 3 to 6 Notes This mode cannot entered if the firmware program mode is set to disable in the programming software KPG 66D 4 4 Function If you press the PF1 key front panel both decimal point on the 7 segment display will disappear The writing speed is 38400 bps low speed mode If you press the PF1 key again the right hand decimal points will light The writing speed is 57600 bps middle speed mode Note Normally write in the high speed mode 115200 bps TKR 850 INSTALLATION 1 External Power Supply Connection TX RX unit B 2 control section Rear Connectors See Page 3 Component side This unit has two external power supply connectors Main DC and Backup If an external DC power supply is connected t
97. cuit This circuit consists of 1 624 1 625 1 626 1 627 1 628 and 1 630 6 DC Power Supply Circuit 6 1 DC Source Switching Relay Circuit 1 The final unit contains a relay K1 for switching between the Main DC and Backup Battery If an external power source is connected to the Main DC terminal the Backup terminal is isolated by the relay If the Main DC turns OFF due to power failure it is Switched to the Backup terminal by the relay The CPU monitors which is used Main DC or Backup Battery 2 Trickle charge circuit If both Main DC and Backup Battery are connected trickle charging of 0 5 A max can be performed from the Main DC power supply to the Battery The default is OFF See the Modification section for in formation on the modification method The battery is charged from the Main DC with D8 D9 and R61 If it exceeds 0 5 A the charging circuit is turned OFF by D9 Main DC Backup battery Fig 9 DC source switching relay circuit 6 2 SB Switching Relay Circuit 1 SB Switched is supplied through the relay K1 in the TX RX unit A 2 When 507 DC source switch in the display unit is turned ON the relay K1 is turned ON to output SB 2 If B exceeds 18V the relay is forcibly turned OFF by 012 and Q25 to interrupt the power and protect the main unit S507 Front panel Fig 10 SB switching relay circuit 23 TKR 850 SEMICONDUCTOR DATA Main CPU
98. d is turned On and Off by toggling Test Tone On Off functions The transmitter can be modulated without a local micro phone by using the test tone When Test Tone On function is executed and any PTT is activated the TKR 850 transmits the test tone with mic mute and also routes the test tone to RA port 15 RF Power The TKR 850 is able to switch transmission output on a per channel basis When the TX High Power function is en abled the transmission output is set to high power 16 Fan Action The TKR 850 has a cooling fan The Fan Action function determines whether the fan is continuously operated or op erates in response to high temperatures only 17 AUX Input and Output There 6 programmable AUX I O Ports 1 6 pins 20 25 and 3 programmable AUX Input Ports 1 3 pins 4 6 on the rear 25 pin D Sub connector CONTROL and 5 programmable AUX Output Ports 1 5 pins 10 11 13 15 on the rear 15 pin TEST SPKR connector The 6 programmable AUX pins are primarily intended for remote control interfaces Each AUX I O Port can be set for AUX Input AUX Output remote Channel Select or Multi Table Select types The AUX Input Port can be set execute a single input function or a set of up to three functions when the port is activated If the port type for an AUX Ports 1 6 is set for AUX Input it will also appear AUX Input window for function programming The input logic is fixed as active Low The AUX Output Port can
99. del type when it is written into the flash memory Change the TKR 850 to mode then attach the inter face cable 11 TKR 850 12 REALIGNMENT 3 3 KPG 46 Description PC Programming Inter face Cable Option The KPG 46 is required to interface the TKR 850 to the computer It has a circuit in its D sub connector 25 pin case that converts the RS 232C logic level to the TTL level The KPG 46 connects the microphone connector of the TKR 850 to the computer s RS 232C serial port 3 4 Programming Software Description The KPG 66D programming disk is supplied in 3 1 2 disk format The software on the disk allows a user to program TKR 850 repeater via the programming interface cable KPG 46 3 5 Programming With IBM PC Data can be programmed into the flash memory in RS 232C format via the microphone connector TKR 850 Fig 1 4 Firmware Programming Mode 4 1 Preface The TKR 850 uses flash memory to allow it to be easily upgraded when new features are released in the future 4 2 Connection Procedure Connect the TKR 850 to the personal computer IBM PC or compatible with the interface cable KPG 46 Connec tion is the same as in the PC mode Notes You can only program firmware from the 8 pin micro phone connector on the front panel Using the 25 pin logic interface on the rear panel will not work 4 3 Programming 1 Start up the programming software Fpro exe 2 Set the communic
100. e Oo 8 WN 52 TX VCO output Ground Terminal function No connection Serial data to radio Serial data from radio Programmable function input 1 Programmable function input 2 Programmable function input 3 Control line ground TX data input data or signalling Input impedance 600Q Coupling AC coupling Deviation 0 75kHz wide 0 35kHz Narrow 100Hz 0 5Vp p input TX audio input voice Input impedance 600Q Coupling AC coupling Frequency response Pre emphasis curve Deviation 60 deviation 1 2 280mVrms 25mV input RX data output voice amp data Output impedance 1kQ or less Coupling AC coupling Non squelched Frequency response 2 5dB at 10 3000Hz Output level 70 90mVrms standard modulation RX audio output voice Output impedance 1kQ or less Coupling AC coupling Squelched Frequency response De emphasis curve Output level 360 440mVrms standard modulation 12 13 14 15 16 17 18 19 20 21 22 23 24 25 RXG SPM NC y o y o RX signal ground for RA RD ground only Speaker mute signal input L Mute on connection External monitor switch input L Monitor on H Monitor off External press to talk switch input L PTT on H PTT off quelch control output L Busy H Not busy connection TX signal ground for TA TD ground only Programmable function input output 1
101. e 16 515MHz clock signal produced by DSP 1 618 1 603 and IC606 are interface IC between the CPU oper ated at 5 0V and the DSP operated at 3 3V 5 7 Base Band Circuit The base band circuit switches between the modulation signal to the transmitter circuit and remote audio and ad justs their levels This circuit consists of 1 605 1 607 1 611 1 615 and 1 617 Modulation inputs include local microphone input low speed data LSD high speed data HSD external audio in put TA and external data input TD and demodulation out puts include receive audio output RA and receive data out put RD The multiplexer 605 changes signals the electronic volume 1 615 adjusts the level and the operational ampli fier IC607 1 611 1 617 amplifiers and sums signals 5 8 RS 232C Circuit The RS 232C circuit connects the RS 232C serial port of a personal computer directly to this model to perform FPU operation The FPU operation can also be performed by con necting a programming cable KPG 46 to the local micro phone on the front panel But if the D sub connector on the rear panel is used the programming cable is not required The 232C driver 620 changes the TTL 232C level The firmware can only be rewritten with the local microphone on the front panel 5 9 Power Supply Circuit The power supply circuit generates power to operate the CPU DSP flash ROM bi directional buffer and base band cir
102. e Enable Turns on in Disable status Reset Do not turn on DC Power Save Off DC Power Save On DC Power Save On Off Do not turn on Scan Off TKR 850 OPERATING FEATURES Trigger Save Function on off Start up Condition of LED in he PF key on Scan On Yes Yes Scan On Off No No Turns on in ON status Scrambler Off Yes Scrambler On Yes Scrambler On Off No Turns on in ON status Squelch Off Yes Squelch On Yes Squelch On Off No Turns on in OFF status Squelch Momentary No Turns on in OFF status Take Over On Off No Turns on in ON status Test Tone Off Test Tone On Test Tone On Off Turns on in ON status TOT Disable TOT Enable TOT Disable Enable Turns on in Disable status TX Disable TX Enable TX Disable Enable Turns on in Disable status None 5 Simplex Duplex Operation The Simplex Duplex function is used to specify whether the channel is used as simplex receiver muted during trans mit or duplex receiver unmuted during transmit If the channel has same TX RX frequency it can operate only in Simplex mode 6 Repeater Base Station Operation The Repeat function is used to specify whether the chan nel is used as a repeater or as a base station A repeater simultaneously and automatically re transmits its received
103. e coaxial cable rom CN 6 and CN19 on TX RX side 8 TX frequency 1 Connect the frequency counter to CN19 then measure the frequency CH 2 TX RX A 2 f counter CN19 PC adj 50Hz or less 9 Setting 1 Insert 8 pin cable and the coax ial cable to CN16 an d 19 on TX RX side 10 Maximum power limitting 1 Measure the RF power at TX ANT High CH 13 TX RF high power 1 Measure the RF power at TX ANT Low CH 2 Center CH 3 High CH Power meter Rear TX ANT VR1 Adjust the RF power to 43W PC 40W Shipping power TKR 850 ADJUSTMENT Measurement Adjustment Item Condition 2 Specifications Remarks SU PATRE Unit Terminal Parts Method P 12 1 Measure the power level Power Rear TX 1W low power TX ANT 25W Low CH Shipping power 2 Center CH 3 High CH 1 Connect the TG to RX ANT Tracking Center the frequency then connect CN1 to the generator you are using then spectrum analyzer input adjust it to look like Spectrum analyzer setting Spectrum the wave Fig 1 Span 50MHz analyzer Page 48 Scale 10dB to div Tracking generator setting Output 30dBm 1 Connect the TG to CN2 then Adjust it to look like connect CN4 to the spectrum the wave Fig 2 analyzer input Page 48 CH 2 Wide Spectr
104. e in Multiple When Local Microphone PTT or External PTT is active while the repeater is in use or the duplex base station is re ceiving the encode signalling is determined according to Encode Tone in Multiple function The simplex base station always transmits the Primary encode OT DOT TKR 850 OPERATING FEATURES Current When any PTT as described above is active while the repeater is in use or the duplex base station is re ceiving the paired encode associated with re ceiving is transmitted When any is active while the repeater or the duplex base station is in idle pe riod the Primary encode is transmitted Primary When any PTT provided that the Priority of any PTT is higher than the Priority of Repeat PTT is active while the repeater is in use the encode changes paired encode to Primary while continuing to transmit When any is active while the repeater 15 in idle period the Primary encode is transmitted In the base station the Primary encode is always transmitted regardless of the receiver status 7 3 QT Reverse Burst Time During repeat with OT tones the repeater re transmits a phase shifted burst of the OT tone reverse burst when it detects the radio using the repeater has un keyed and also sent a reverse QT burst squelch tail elimination This mutes a receiving radio s sp
105. e to 25W 100 duty 25W Type of Emission Wide 16 Narrow 11KOF3E Spurious 5 Harmonics 80dB Others 75dB FM Hum and Noise Wide 50dB Narrow 45dB Audio Distortion Less than 396 at 1000Hz Microphone Impedance 6000 Band Spread 30MHz 2 32 2 30MHz 95 TKR 850 ay 2 SPECIFICATIONS GENERAL Frequency 440 10 470 2 Number of Channels 16 channel Channel Spacing nets Wide 25kHz Narrow 12 5kHz PLL channel stepping 5 2 6 25 2 Operating Voltage 13 2V DC Current Drain Standby 0 8 Standby w power Save 0 Operating mode DC IN Backup Temp SAVE ON DISP OFF 1 2 Transmit Receive Less than 13 Duty Gyeler cis Re Receive 100 Transmit 100 100 25W Frequency Stability Less than 0 00015 30 C to 60 C Antenna Impedance 500 Operating Temperature 30 to 60 DIMENSIONS
106. eaker audio before its receiver circuit shuts off causing squelch tail noise in the speaker audio The TKR 850 can select the time between 140 to 200 ms that the OT reverse burst is sent Typically this time should not have to be adjusted from the default value The transmission of the OT reverse burst can be also inhibited if the OT Reverse Burst function is set to No 7 4 DOT Turn Off Code Time During repeat with DOT tones the repeater re transmits a specific turn off code when it detects the radio using the repeater has un keyed and also sent the turn off code squelch tail elimination This mutes a receiving radio s speaker audio before its receiver circuit shuts off causing squelch tail noise in the speaker audio The TKR 850 can select the time between 140 to 200ms that the DOT turn off code is sent Typically this time should not have to be adjusted from the default value 7 5 Off Hook Decode TKR 850 is able to decode regardless whether the local microphone is in the on or off hook condi tion When the Off Hook Decode function is enabled the TKR 850 is capable of decode even though the mi crophone is in the off hook condition or a local microphone is not installed 8 Scan Feature 8 1 Scan Operation Providing that the TKR 850 contains two or more non pri ority ADD channel or one or more non priority ADD channel and Priority channel it starts scanning once the Scan On function is
107. er at a pre determined level and con sists of forward reflected power detector circuits and switching transistor O8 The forward reflected power de tector circuits detects forward RF power and reflected RF power to DC voltage and consists of a CM coupling type detection circuit formed by a strip line RF detector 04 05 and DC amplifier IC3 A 2 The voltage comparator IC3 B 2 compares the above detected voltage with a reference voltage set using the mi croprocessor and 1 6 located in the TX RX unit An voltage proportional to the difference between the sensed voltage and the reference voltage appears at the output of IC3 This output voltage controls the gate voltage for the drive amplifier O4 and final amplifier Q5 which keeps the transmitter output power constant 6 VTH OUT FO 11050 Fan operation ON 3 5 Fan Action Control Circuit If fan action is set to Temperature the cooling fan is turned ON or OFF according to temperature OFF If the ambient temperature of the final unit exceeds approx 40 C the output from pin 6 of the temperature 420 C 30 40 50 tection 1 1 changes to H This signal is sent to the CPU 1 604 0602 in the TX RX unit B 2 control section and the output from 13 FAS of IC7 in the TX RX unit A Fig 4 Fan action control c
108. erved Ground High temperature detector signal Fan control signal input TX power control signal input 8V input during transmission Terminal No STB1 CLK DAT PSW GND NC 58 58 Terminal Name Strobe data for shift register Clock data input Serial data input Power switch output Ground No connection Power supply input after power switch Power supply input after power switch Terminal function Power supp Fan ground output for cooling fan E Ground B Power supp B Power supp y output y output Main DC Power supp terminal y input from Main DC BACKUP Power supp terminal y input from BACKUP GND Ground it X54 Terminal Connector No Name 30 20 A 2 Terminal function gt 50 23 VLI 5M GND C Volume control output for AF signal Common 5V input Ground connection Power supply input after power switch o connection Ground PTT output TXD input IC ground IC signal output Hook detection output RXD output CN501 HOOK MIC MIG PTT GND NC SB Power supp To X54 B 2 display unit MIC ground Ground No connecti switch NC No connecti Ground 5M Hook detection input RXD input MIC signal input PTT input TXD output on ly output after power on Common 5V output Volume control input for AF signal Connector No a
109. executed and displays SC on the 7 seg LED Scanning stops temporarily if any following conditions be come valid 1 if a RF carrier and a valid is present The receiv ing channel number is displayed and the received audio is heard from a speaker 2 if a RF carrier is present providing that the Monitor On function is executed if the Squelch Off function is executed Scanning stops on the channel being scanned when Squelch Off is ex ecuted the channel number is displayed and the re ceived audio is heard from a speaker if a local microphone s hook is in off hook status provid ing that the Off Hook Scan function is set to Disable Scanning stops on the Revert channel but the audio is not heard until a valid signal is received o When the received is ended scanning automatically resumes after the period set in Dropout Delay Time function has expired When the Scan Off function is executed the TKR 850 inhibits scanning and displays the selected chan nel 8 2 Scan Sequence 1 Normal Scan When no Priority channel is set scanning of ADD channels is done in ascending order 2 Single Priority Scan The Priority channel is set as either a fixed channel or a selected channel When Priority channel is set Priority channel and non Priority channel are scanned by turns When scanning stops on the non Priority channel calls from the Priority channel are still checked at set intervals while scan
110. f an RF carrier and the specified are present RX Unlock his alarm function becomes valid if the RX PLL circuitry becomes unlocked TX Unlock his alarm function becomes valid if the TX PLL circuitry become unlocked Power Supply Lower Limit his alarm function becomes valid if the DC power supply voltage becomes less than the preset point he preset point is selected in the range of 10 6V to 13 6V TXS TX Sense This function becomes valid when the transmitter is keyed Selectable AUX Outputs which are set up as Selectable appear in the available Function List for the AUX Input Functions and Key Assignment This allows AUX Inputs and PF Keys to be used to control AUX Outputs RX Signal Detect This function becomes valid if the RX signal level becomes less than the preset point The preset point is selected in the range of 120dBm to 95dBm RF Power Down Detect This alarm function becomes valid if the RF Power becomes less than about 10W Fan Status This alarm function becomes valid when the Fan is turned on either by sensing a high temperature condition or by its operating mode being set to Continuous 5 4 Trigger Assignment TKR 850 The Programmable Functions described above can be assigned to PF keys AUX input Save on off Start up and Power supply according to following table In the last column of the table when t
111. g the Collector Current Up 2 DC Source Switch Auxiliary output 1 and 2 can each be modified to sink up To prevent the power supply from turning off due to 600mA of the collector current The following modification misoperation of the DC source switch on the front panel or should be installed when Auxiliary output 1 or 2 is used to accidents tampering after installation the main unit can be control external equipment kept on regardless of the on off of the DC source switch on 1 Remove D625 R755 and R769 for Auxiliary output 1 the front panel D624 R756 and R770 for Auxiliary output 2 on the Short the PSW land near K1 relay by soldering component side of the control section for TX RX unit PCB 2 Install 0608 0612 and R761 for Auxiliary output 1 Q607 0611 and R759 for Auxiliary output 2 on the component side of the control section for TX RX unit PCB 0607 0608 0611 0612 DTD114EKA 8 ponent side R759 R761 3 9kQ RK73GB1J392J chip resistor 3 Change R801 for Auxiliary output 1 R797 for Auxiliary output 2 from 1 RK73GB1J102J OQ R92 1252 05 By making this modification Auxiliary output 1 and 2 can now sink up 600mA each 2 WIDE NARROW TX RX unit B 2 Component side 602 MA MA 756 18770 50801
112. he Programmable Functions is assigned to any PF keys it expresses that the LED in the PF key turns on either conditions Yes expresses that the trigger is available the Programmable Function No expresses that the trigger is not availabale the Programmable Function Trigger Function Start up Condition of LED in he PF key on AUX Out 1 5 I O 1 6 Off Yes AUX Out 1 5 I O 1 6 Yes AUX Out 1 5 I O 1 6 On Off No Turns on in ON status Channel 1 16 Up Down Do not turn on CW ID On Turns on while transmitting CW Message 1 8 On Turns on while transmitting Display Off Display On Display On Off Turns on in ON status Hold Time Enable Hold Time Disable Hold Time Disable Enable Turns on in Disable status Loca Tx Disable Loca x Enable Loca Tx Disable Enable Turns on in Disable status Mon itor Off Mon itor On itor On Off Turns on in ON status itor Momentary Turns on in ON status i Table Sub i Table Main i Table ain Sub Turns on in Sub status Dec isable Dec Dec D Enable Disable Enable Turns on in Disable status Enc Disable Enc Enable Enc Disable Enable Turns on in Disable status Repeat Disab e Repeat Enable Repeat Disab
113. ide view 78118375 11 TX PLL VCO PcBoARDViEWS 850 m C368 5m RT E 8 gt 8 E N 2 29 ge 3 8 gt gt fal 52 1 8 xa essen 5 etl 28 ax 5 gt 8 5 6368 5 ct A p 1 E 3 av 8 aae LL TKR 850 PC BOARD VIEWS DISPLAY UNIT X54 3330 20 Component side view MAIN DC BACKUP GRN RED ME TEN S E 4848 Y 2 LES isi 9501 182 Component side Foil side DTA144EUA 25 4226 2581132 DTA114EUA LA4422 NJ 4558 DAN235K TA78LO5F DA204U MA742 DTC363EK 25 4617 25 3357 DTC114EUA HSM 88AS DTD114EK 35 5110 DTC144EUA 22 222 2 DTD123EK O 47 2541586 4 25 3356 U 3 25 4116 25 2596 25 508 7500 8009 7504 TC7S66FU 57 B views TKR 850 DISPLAY UNIT X54 3330 20 Foil side view NC BACKUP MAIN DC RED R 5 GND 58 a 0308 a A gt 1 AMIG OT XE m R507 ie d 4 5 c Component
114. ion Wide Narrow switch DC switch 27 TKR 850 PARTS LIST X New Parts indicates safety critical components L Scandinavia K USA Canada Parts without Parts No are not supplied Y PX Far East Hawaii T England E Europe Les articles non mentionnes dans le Parts No ne sont pas fournis Y AAFES Europe X Australia M Other Areas Teile ohne Parts No werden nicht geliefert TKR 850 FINAL UNIT X45 3630 XX Desti Parts No Description nation Address Parts No Description 25 0747 04 ROTECTION BAG 250X350 TKR 850 H25 0762 04 ROTECTION BAG 120X300 A10 4037 CHASSIS H25 2328 04 ROTECTION BAG 80 250 0 07 A62 0836 0 PA 52 1779 02 62 0837 0 62 0840 0 02 0475 05 OOT A62 0933 PA 02 0492 04 00 21 8402 04 HARDWARE FIXTURE ACC A62 0934 03 PA 59 0302 05 GROMMET B10 2635 04 FRO 01 0418 0 HANDLE ACC B10 2636 04 FRONT GLASS PC SHEET 29 5389 0 KNOB VOL B11 1259 04 29 5460 0 EY 0 4 B62 1327 NSTRUCTION MANUAL 29 9106 0 NOB DC SOURCE B72 1935 0 ODEL NAME PLATE 09 2292 0 HEXAGON HEAD SCREW B72 1936 04 ODEL NAME PLATE 15 1030 4 FLAT WASHER B72 1937 04 ODEL NAME PLATE 30 2606 4 HEAD MACHINE SCREW B72 1975 14 ODEL 30 4006 4 PAN HEAD MACHINE SCREW 30 4014 4 PAN HEAD MACHINE SCREW 0 3414 05 DC CORD 0 3418 05 30 4020 4
115. ircuit 2 controlled by the CPU goes H This signal turns Q9 in the final unit ON to run the cooling fan It has a hysteresis of approx 5 by IC2 If fan action is set to Continuous the fan operates continuously but O9 stays ON TKR 850 CIRCUIT DESCRIPTION 4 PLL Frequency Synthesizer The PLL frequency synthesizer circuit consists of the fol lowing circuits 4 1 receiver PLL circuit 4 2 transmitter PLL circuit and 4 3 unlocked detector circuit 4 1 Receiver PLL The receiver PLL circuit is located in VCO unit A3 X58 480 on TX RX unit X57 627 A 2 and consists of VCXO X2 0350 and 0351 a single chip PLL IC 1 300 buffer amplifier Q355 and high frequency amplifier 0302 The VCXO generates 16 8MHz The frequency stability is within 1 5ppm Temperature range of 30 to 60 C The frequency tuning of the VCXO is done to apply a voltage to pin 1 of the VCXO The output of the VCXO is applied to pin 8 of the PLL IC through the pin 7 of the VCO The first local oscillator is a lower heterodyne local oscil lator and the VCO oscillator frequency is 405 15 to 435 15MHz K 435 15 to 467 15MHz K2 355 15 to 385 15MHz 395 15 to 425 15MHz E The oscillator frequency is controlled by applying the VCO control voltage obtained from the phase comparator to the varactor diodes TX RX unit CO unit X58 480 gt
116. nable output input Ground No connection Detection signal input No connection CN603 To ACC 15 pin connector Power supply output after power switch Power supply output after power switch Ground Ground CN604 To ACC 15 pin connector OMAN A WY Auxi FPU se Auxi FPU se External speaker output Auxiliary output 5 iary output 4 iary output 3 External speaker output FPU se FPU se Internal speaker input RSSI signal output RX data output External speaker ground Auxiliary output 2 Auxiliary output 1 External speaker ground CN605 Internal speaker AF output Internal speaker ground CN606 To ACC 25 pin D sub connector WN FIN gt No connection No connection Speaker mute signal input Programable 6 RX signal ground Programable 5 RX audio output voice Programable 1 4 gt CQ N NNN ON 0 8 0 RX data output voice amp O 3 TX audio input voice O 2 TX data input data or signaling O 1 ol line ground Programable Programable Programable Con TX signal ground 3 FPU ectab Auxiliary inpu No connection 2 FPU selectab Squelch control output 1 FPU External press to talk switch in
117. nction keys Press these keys to activate their programmable func tions PF1 key left side PF2 key PF3 key PF4 key PF5 key PF6 key right side None No function Repeat disable enable TX disable enable Take over Monitor on off Channel BUSY indicator Lights green while a signal is being received 9 TX indicator Lights red while transmitting toll BACKUP MAIN DC BACK UP 000000000099 S o lellelle o0000 88002 0 0000 1 TX OUT jack Connect a TX antenna or a duplexer to this receptacle 2 CONTROL 1 0 jack Connect an external programming device or repeater controller to this DB 25 interface 3 FUSE Insert 15 A blade fuses into these fuse holders 4 RX IN jack Connect a RX antenna or a duplexer to this BNC recep tacle 5 DC 13 6V type DC 13 2 type jack Connect a 13 6 V K type or 13 2 V E type DC power supply to this jack 6 BACKUP battery terminal 7 TEST SPKR jack Test input output jack Connect an external speaker to this jack Cooling fan 9 Optional space For external DC power supply or duplexer etc TKR 850 OPERATING FEATURES 2 Two 7 segment LED Displays Channel display 1 16 While operating normally in user mode e When the displayed channel
118. nd when PTTs is simultaneously activated the transmit audio path related to the PTT with higher prior ity is given priority These are Local Microphone PTT Exter nal PTT and Repeat PTT 11 Time Out Timer The Time Out Timer function determines the period of time users can continuously transmit When the selected period expires the transmission is inhibited 12 Repeat Hold Time The Repeat Hold Time hang timer function is used to prevent the repeater from being repeatedly keyed and unkeyed in response to short message traffic When a mo bile transceiver unkeys the repeater s Hold Timer allows the repeater to continue transmitting for a brief period while waiting for a responding end user If no valid OT DOT is detected within the Hold Timer period the transmitter is al lowed to unkey This function determines the period of time that the transmitter is allowed to remain keyed after the loss of a valid received signal 13 Take Over The Take Over function is used to disable the external wireline control of the repeater When Take over function is enabled the external AUX inputs and Outputs transmit au dio inputs and receive audio outputs External PTT and Ex ternal Monitor lines are disabled All AUX Input functions assigned to any AUX Input stay in their current state How ever External PTT and External Monitor switch to the Off state 14 Test Tone The Test Tone is a single frequency audio sine wave an
119. nectors are properly terminated SHUT OFF this equipment when near electrical blasting caps or while in an explosive atmosphere e This equipment should be serviced by only qualified tech nicians SERVICE This radio is designed for easy servicing Refer to the schematic diagrams printed circuit board views and align ment procedures contained in this manual personal computer compatible programming interface KPG 46 and programming software KPG 66D are required for programming TKR 850 OPERATING FEATURES 1 Controls and Functions 1 1 Front Panel KENWOOD 1 2 CH STATUS Display Two 7 segment digits display the channel number or sta tus 3 VOLUME control Rotate to adjust the volume 4 DC source ON OFF switch 5 DC source indicator Lights green when DC source is applied from the DC 13 6V jack DC 13 2V jack on E type versions Lights red when DC source is applied from the BACKUP battery ter minal 6 MIC jack Connect a microphone to this 8 pin modular jack 1 2 Rear Panel ews 4 Y GRNMANDC EDV BACKUP 2 o 990000000 7 Programmable Fu
120. ning is stopped This operation is called Look Back and the interval period is selected by the Look Back Time function 8 3 Revert Channel The Revert channel is a channel that is used to transmit during scanning The time from the end of transmission on Revert channel to the time scanning automatically resumes is set in Dwell Time function The Revert channel types are Last Called Last Used Selected Selected TalkBack Pri ority and Priority TalkBack 1 Last Called The TKR 850 reverts to the channel upon which a call was last received even if scanning has re sumed power on default selected channel Last Used with TalkBack The TKR 850 reverts to the channel that was last transmitted on power on default selected channel However if a call is received on a channel other than the last transmit channel and is pressed before scanning resumes the transceiver talks on the current receive channel Selected The transceiver reverts to the channel set by the function prior to scan initiation Selected TalkBack The TKR 850 reverts to the channel set by the Channel X functions or Channel Select func tion prior to scan initiation However if a call is received on a channel other than the selected channel and is pressed before scanning resumes the transceiver talks back on the current receive channel Priority The TKR 850 always reverts to the Priority chan nel 1 D a
121. o the AINL terminal of CODEC IC 614 and audio processed by DSP IC618 The cessed audio signal from the AOUTL terminal of 1 614 is amplified by 1 616 A 2 to a sufficient level anti aliasing fil tered by 1 616 B 2 and amplified by the summing ampli fier 1 611 A 2 3 2 Modulation Level Adjustment Circuit The output of the summing amplifier 1 611 2 is passed to an electronic volume 615 for maximum devia tion adjustment before being applied to a varactor diode in the voltage controlled oscillator VCO A2 located in TX RX unit X57 627 A 2 1 616 2 1 611 2 1605 2 Fig 2 Microphone circuit 19 TKR 850 20 CIRCUIT DESCRIPTION 3 3 Driver and Final Power Amplifier Circuit The transmit signal is generated by the TX VCO A2 amplified by Q11 and sent to final unit X45 363 This am plified signal is amplified by 02 4 and 15 passed to the FINAL stage The RF power amplifier consists of MOS FET TX RX unit X57 627 A 2 Final unit X45 363 A 2 Fr gat DL ee M mmm CC C 1 TX ANT STT 01 05 s Drive AMP lt Fig Driver and final power amplifier circuit 3 4 Automatic Power Control Circuit and Transmitter The automatic power control APC circuit stabilizes the transmitter output pow
122. o the main DC connector and a backup battery is connected to the Backup connector at the same time the DC power supply switches to the battery automatically if power failure occurs Therefore the operation of the repeater can be continued If the battery is used but both the battery and power sup g ply need not be connected if an external switch is used or if CN604 2 only a solar battery is used connect it to the Backup con CN606 nector not the Main DC connector Current consumption 5 9 be reduced by approx 120mA because the relay is not 2 used E If it is installed when the temperature at the repeater site CN605 1 is below freezing check whether the switch relay works properly after installation 2 Voice Scrambler It operates only during base operation The voice is not Fig 1 scrambled when it is repeated 2 1 Modification DEP S 1 Remove R742 and R653 on the TX RX unit B 2 control 1 section TXI MIC signal input TXO MIC signal output 2 2 Connecti
123. on RX audio signal input 1 The functions of pins of CN601 on the TX RX unit B 2 AC Audio control signal output control section are shown in the figure BC1 Scramble code output 1 2 Join the CN601 connector to the voice scrambler board BC2 Scramble code output 2 via the E37 0808 05 connector cable Scramble code output 3 4 Scramble code output 4 When the operation is checked in PC test mode after the PTI PTT signal input modification and the maximum deviation is adjusted the CLRC Clear code for scrambler voice from the local microphone is not modulated In this DEO Detection signal output case remove the CN601 12 PTO cable and connect it PTO PTT signal output to the land of the display unit X54 333 from the voice 5C 5V output scrambler The voice from the local microphone can be GND modulated in PC test mode 14 Fig 2 Display unit Foil side NM 13 TKR 850 14 INSTALLATION 3 External Speaker KES 4 The TKR 850 has internal built in speaker 5VV 8Q the external speaker output from the TEST SPKR connector 15 pin on the rear of the radio is 4W 4Q Use external speaker KES 4 3 1 Connection for the KES 4 With the TKR 850 When taking the AF output from the TEST SPKR connector 15 pin on the rear of the radio The following tools are required for changing the connec tor Extracting tool The following ex
124. on Serial data transmit output CODEC control Power down L Active ot used No connection ot used No connection Not used No connection identification Not used No connection ot used Pull up Hold Pull up Command interrupt from host CPU ial data syncronize input Not used Pull down ot used Pull up oot mode select Pull up VDD for I O pins 3 3V ot used Pull up Vss GND VDD for core CPU 1 8V NC5 NC8 Not used No connection HPI data bus HCNTLO HPI control 0 GND Vss GND NC9 NC12 Not used No connection BCLKRO Receive clock input SCLK 516 09375 DVDD VDD for I O pins 3 3V Vss GND BCLKR1 Not used No connection CLKMD1 Clock mode select Pull down BFSRO Frame sync for receiver input LRCK 16 128 2 CLKMD2 Clock mode select Pull up CLKMD3 Clock mode select Pull down 25 TKR 850 SEMICONDUCTOR DATA DESCRIPTION OF COMPONENTS Name Function Final Unit 45 3630 NC13 Not used No connection HD3 HPI data bus TOUTO Not used No connection EMUO Emulator 0 to JTAG connector EMU1 OFF Emulator 1 to JTAG connector Part name Description Thermostat Voltage regulator DC amplifier Transistor RF amplifier FET RF
125. panel LEDs except the Power LED are turned off and the audio amplifier and the DSP becomes inactive When the Display On function is executed while the re peater is in the DC Power Save Mode all panel LEDs be Come active as normal status indicators on the repeater and the audio amplifier and the DSP becomes active However when the Save Delay Timer A period expires all panel LEDs except the Power LED are turned off and the audio amplifier becomes inactive again and when the Save Delay Timer B period expires the DSP becomes inactive When the DC Power Save Mode is turned on or off up to 3 functions pre programmed into the Save On function or Save Off function are executed in sequence 20 Power Supply The TKR 850 is able to use two Power sources that are called Main and Backup When the Power source changes from Main to Backup or from Backup to Main up to 3 func tions pre programmed into the Backup Power function or the Main Power function are executed in sequence 21 Start Up When the TKR 850 is first turned on or is reset up to 3 functions pre programmed into the Start Up function are executed in sequence 22 Optional Board An optional scrambler board can be installed in the TKR 850 Scrambler codes between 1 and 16 are available per channel If the scrambler board is not to be used although it is installed set the parameter to Off When any Scram bler code is set up and the Scrambler On function is ex ecuted
126. rts are toggled between its active and inactive states respectively A A A A A A UX 1 1 to 6 ports are toggled between its active and inactive states respectively Channel Down he channel decrements by one Channel Up CW ID On Message 1 8 On Display Off he channel increments by one he CW ID is transmitted he CW Message 1 to 8 is transmitted respectively panel LEDs are turned off except the Power LED Display On panel LEDs become active as normal status indicators on the repeater A A A A A A Channel 1 16 Directly select Channel 1 to 16 respectively 1 T T T A A A Display On Off panel LEDs with the exception of the Power LED are toggled between off and their normal status on the repeater Hold Time Enable The Parameter of Repeat Hold Time is enabled Hold Time Disable The Parameter of Repeat Hold Time is disabled Hold Time Disable Enable Parameter of Repeat Hold Time is toggled between disabled and enabled Local Tx Disable The local mic s PTT is disabled Local Tx Enable he local mic s PTT is enabled Local Tx Disable Enable ocal mic s PTT is toggled between disabled and enabled Monitor Off decoder is disabled Monitor On decoder is enabled itor On Off DOT decoder is toggled between disabled and enabled itor Momentary DOT
127. t 22 TKR 850 CIRCUIT DESCRIPTION 5 6 DSP The DSP circuit filters transmit receive audio signal and encode decodes signaling QT DOT This circuit consists of IC618 612 1 613 1 614 1 603 1 606 1 608 1 610 1 616 1 619 The receive signal DET is converted from analog to digital by 1 614 with a sampling frequency of 16 128kHz The digi tized audio signal is sent to DSP 1 618 to process the signal ing signal and audio signal The processed digital audio sig nal is fed to CODEC 1 613 converted from digital to analog and the analog signal is output from 16 AOUTR Then the audio signal is amplified by 1 619 B 2 passes through the 1 619 A 2 low pass filter and goes to an electronic vol ume 1 615 The transmit audio signal coming from 605 is amplified by 1 610 fed to pin 3 AINL of CODEC 1 614 and verted from analog to digital at a sampling frequency of 16 128kHz The digitized transmit audio signal is AGC pro cessed pre emphasized and filtered at 300Hz to 3kHz by DSP 1 618 and the resulting signal is fed back to CODEC 1 614 and converted from digital to analog and the analog signal is output from 15 AOUTL The transmit signal from AOUTL is amplified by 1 616 B 2 passes through the 1 616 2 low pass filter and goes to the 611 A 2 sum ming amplifier 1 613 is a counter IC and the clock required for the CODEC and DSP is generated by dividing th
128. the scrambler board is activated TKR 850 OPERATING FEATURES REALIGNMENT REALIGNMENT 1 Modes PC programming mode PC tuning mode Firmware Programming mode Mode Function User mode Use this mode for normal operation PC mode Use this mode to make various settings by means of the FPU through the RS 232C port PC programming Use to read and write frequency data and mode other features to and from the repeater PC test mode Use to check the repeater using the PC This feature is included in the FPU Firmware pro Use when changing the firmware program gramming mode of the flash memory 2 How to Enter Each Mode User mode Power on PC mode Firmware Pro Received commands from PC PF1 key Power on one second gramming mode 3 PC Mode 3 1 Preface The TKR 850 repeater is programmed by using a personal computer programming interface and KPG 66D software 3 2 Connection Procedure 1 Connect the TKR 850 to the personal computer with the interface cable 2 When power is applied the user mode is entered imme diately When the PC sends a command the repeater enters the PC mode and displays PC on the 7 segment LED When data is being transmitted to the PC from the repeater the TX LED flashes The BUSY LED flashes when data from the PC is being received by the repeater Note e The data stored in the personal computer must match the mo
129. tracting tool is recommended Molex Inc Order No 11 03 0002 1 Remove the connector with jumper from the external speaker connector on the rear panel of the radio Fig 4 1 Note Save the jumper which is required when the radio is used without the external speaker 2 Remove the terminals with the jumper from the connec tor housing holes number 9 and 12 using the extracting tool Removing the jumper lead Fig 4 2 1 Insert the extracting tool 11 03 0002 into the con nector while pushing the jumper lead in the direction of a 2 Push the extracting tool into collapse the barbs of the crimp terminal 3 Pull out the lead while continuing to push the extract ing tool in the direction b 3 Reinsert the terminal with the black and white stripe lead into hole number 12 and the terminal with the black lead into hole number 6 Fig 4 3 4 Attach the connector to the external speaker connector on the radio Note Relationship between TEST SPKR connector 15 pin connection and speaker output When pins 9 and 12 are shorted Built in internal speaker is used When pins 9 and 12 are open and output is from pins 6 and 12 KES 4 is used Square type plug L D 1 3228 05 Fig 4 1 b Extracting tool 11 03 0002 lt Jumper lead 12 7 Black lead Crimp terminal Black White lead E23 0613 05 Fig 4 3 TKR 850 MODIFICATION 1 Modification for Sinkin
130. um analyzer setting Span 50kHz to 25kHz Scale 10dB to 2 div Center freq 44 850MHz Tracking generator setting Output 30dBm Narrow 2 CH 2 Narrow Adjust it to look like the wave Fig 3 Page 48 15 Discrimi 1 Connect the SSG to RX ANT SSG RX ANT Adjust the distortion nator CH 2 Wide to minimum SSG output 53dBm 501pnV TEST SPKR SSG MOD 1kHz Distortion jack SPO SSG DEV 3kHz meter pin 12 AF 2V AQ 16 Threshold 1 Connect SSG to RX ANT SSG RX ANT PC adj squelch CH 2 Wide Adjust to point of Wide SSG output 3dB below to Audio TEST SPKR opening squelch 12dB SINAD level analyzer jack SPO SSG MOD 1kHz VIVM pin 12 SSG DEV 3kHz Oscilloscope 24 40 2 SSG OFF Check Squelch must be closed Narrow 3 CH 2 Narrow PC adj SSG output 3dB below to Adjust to point of 12dB SINAD level opening squelch SSG 1kHz SSG 1 5kHz AF 2V 4Q 4 SSG OFF Squelch must be closed TKR 850 ADJUSTMENT Measurement Adjustment Item Condition Test equipment Unit Terminal Parts Method Specifications Remarks 17 Tight squelch Wide 1 Connect SSG to RX ANT CH 2 Wide SSG output 7dB over to 12dB SINAD level SSG MOD 1kHz SSG DEV 3kHz AF 2V 4Q Narrow 2 2 Narrow SSG output 7dB over to 12dB SINAD level SSG MOD 1kHz

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