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Yaesu FT-891, Technical Supplement

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Copyright 2017
YAESU MUSEN CO., LTD.
All rights reserved.
No portion of this manual may be
reproduced without the permission of
YAESU MUSEN CO., LTD.

YAESU MUSEN CO., LTD.

Tennozu Parkside Building
2-5-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 Japan

YAESU USA

6125 Phyllis Drive, Cypress, CA 90630, U.S.A.

YAESU UK

Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.

Summary of Contents for FT-891

Page 1: ...mponents and the other has either a mixture of both chip and leaded components trimmers coils electrolytic capacitors ICs etc or leaded components only While we believe the information in this manual...

Page 2: ...edance 50 Ohms unbalanced Supply voltage 13 8 V DC 15 negative ground Current Consumption typical Rx 2 0 A signal present Tx 23 A Operating Temperature Range 14 F to 122 F 10 C to 50 C Case Size W x H...

Page 3: ...30 MHz 1 6 V 50 MHz 54 MHz FM 12 dB SINAD 0 35 V 29 MHz 50 MHz 54 MHz Selectivity Mode 6 dB 60 dB SSB CW 2 4 kHz or better 3 6 kHz or less CW N 500 Hz or better 750 Hz or less AM 6 kHz or better 15 kH...

Page 4: ...MAIN Unit RA6121200 ThermalConductivePad T9207337 WIRE ASSY 70MM30P T9207694 WIRE ASSY 190MM2P T9207692 WIRE ASSY 150MM2P T9207690 WIRE ASSY 80MM2P M4090264 SPEAKER T9207700 WIRE ASSY 110MM2P P109115...

Page 5: ...DING HEAD SCREW M3X7B 2 Non designated parts are available only as psrt of a designated assembly T9207686 CHASSISWIRE ASSY 74MM4P RA6076300 GROUND PLATE FET S RA0129800 LEAF SPRING S5000260 LEAD CLAMP...

Page 6: ...RA6088900 DIFFUSER SHEET RA6081700 REFLECTOR RA6073800 LIGHT GUIDE RA607360A FRONT PANEL PRT PANEL Unit RA607400A RUBBER KNOB TOP VR Unit R6054387B SPECIAL NUT RA6073900 RUBBER KNOB FRONT U70015001 PL...

Page 7: ...BLOCK DIAGRAM 1 FT 891 Technical Supplement Block Diagram...

Page 8: ...CONNECTION DIAGRAM 1 FT 891 Technical Supplement Connection Diagram...

Page 9: ...re that more complex adjust ments be performed in a sequence Do not attempt to perform only a single step unless it is clearly iso lated electrically from all other steps Have all test equipment ready...

Page 10: ...keys while turning the radio on to enter the alignment mode Rotate the MULTI function knob to select the alignment menu item 01 01 VDD MTR Press the CLAR key then rotate the RF SQL knob so the parame...

Page 11: ...and adjust the listed components on the LOCAL Unit for the required voltage or confirm that the correct voltage is present on each alignment menu item Alignment Menu Item Adjust Confirm DC voltmeter 0...

Page 12: ...e MAIN Unit for maximum deflection on the RF millivoltmeter REF OSC Adjustment Connect the frequency counter to TP1022 Press and hold in the A B and C keys while turning the radio on to enter the alig...

Page 13: ...witch then rotate the RF SQL knob so that the RF millivoltmeter reading is 10 0 dBm 0 5 dBm Lot 1 10 or 9 0 dBm 0 5 dBm Lot 11 Release the PTT switch Rotate the MULTI function knob to select the align...

Page 14: ...livoltmeter Note If the S meter deflects while adjusting reduce the RF Signal Generator output so that the S meter does not deflect IF Trap Adjustment Set the VFO A frequency to 51 900 MHz in the CW U...

Page 15: ...GC AUTO RF GAIN Fully clockwise Connect the RF Signal Generator to the ANT jack then set the output level to 76 dB at the 14 200 MHz Connect the Digital DC voltmeter high Z to TP1016 on the MAIN Unit...

Page 16: ...MHz 7 100 MHz 36 dB AF knob 0 dB 7 100 MHz 10 dB RF SQL knob 1 5 dB 0 5 dB 04 03 IGC HFM 14 200 MHz 14 200 MHz 36 dB AF knob 0 dB 14 200 MHz 10 dB RF SQL knob 1 5 dB 0 5 dB 04 04 IGC HFH 21 200 MHz 21...

Page 17: ...60 Rotate the RF SQL knob so that the S meter reading is S 9 60 Press the CLAR button to save the new setting Press and hold in the F key to save the new setting and exit the alignment mode FM Squelch...

Page 18: ...Spectrum Analyzer to J1002 Set the VFO A frequency to 51 500 MHz in the CW USB mode Set the TX Power to 100 W Press the PTT switch adjust T1025 on the spurious 69 450 MHz for minimum deflection on th...

Page 19: ...onnect the jumper plugs from J5005 Connect the DC ammeter to J5005 Press and hold the PTT switch while adjust VR5002 so the DC ammeter reading is 1 0 A 0 1 A Release the PTT switch Disconnect the DC a...

Page 20: ...Unit Connect the Audio Generator to pin 8 of the Microphone jack pin 7 GND then set the output level to 0 5 mV 1 kHz Set the VFO A frequency to 50 150 MHz in the USB mode Press the PTT switch then ad...

Page 21: ...tate the MULTI function knob to select the alignment menu item 10 05 I ALC 14 for the 14 MHz amateur band s ALC Adjustment Set the VFO A frequency to 14 175 MHz in the CW mode Press the PTT switch the...

Page 22: ...e PTT switch Rotate the RF SQL knob for maximum deflection on the ALC meter zone then press the CLAR key while pressing and holding in the PTT switch Release the PTT switch then press and hold in the...

Page 23: ...G 3 5 Rotate the RF SQL knob Maximum deflection 12 10 10W FALC 3 5 Rotate the RF SQL knob 10 W 1 W 12 11 10W MTR 3 5 Press the PTT switch 10 W 12 12 10W TXG 3 5 Rotate the RF SQL knob Maximum deflecti...

Page 24: ...knob Maximum deflection 16 13 5W FALC 18 Rotate the RF SQL knob 5 W 1 W 16 14 5W MTR 18 Press the PTT switch 5 W 16 15 5W TXG 18 Rotate the RF SQL knob Maximum deflection 21 MHz 17 01 100W FALC 21 Rot...

Page 25: ...SQL knob Maximum deflection 20 04 50W FALC 50 Rotate the RF SQL knob 50 W 3 W 20 05 50W MTR 50 Press the PTT switch 50 W 20 06 50W TXG 50 Rotate the RF SQL knob Maximum deflection 20 07 20W FALC 50 R...

Page 26: ...the CW mode Press and hold the PTT switch then rotate the RF SQL knob for 50 W 3 dot on the PO meter Release the PTT switch Rotate the MULTI function knob to select the alignment menu item to 22 05 RE...

Page 27: ...on knob to select the alignment menu item to 24 10 SWR MTR2 0 50 Rotate the RF SQL knob to set the parameter is 120 Rotate the MULTI function knob to select the alignment menu item to 24 11 SWR MTR3 0...

Page 28: ...FT 891 Technical Supplement MAIN 1 Circuit Diagram MAIN Unit Lot 1 3...

Page 29: ...FT 891 Technical Supplement MAIN 2 Parts Layout side A MAIN Unit Lot 1 3 1 2 3 4 5 A B C D E F 6...

Page 30: ...FT 891 Technical Supplement MAIN 3 Parts Layout side B MAIN Unit Lot 1 3 1 2 3 4 5 a b c d e f...

Page 31: ...FT 891 Technical Supplement MAIN 4 Circuit Diagram MAIN Unit Lot 4 6...

Page 32: ...FT 891 Technical Supplement MAIN 5 MAIN Unit Lot 4 6 Parts Layout side A 1 2 3 4 5 A B C D E F...

Page 33: ...FT 891 Technical Supplement MAIN 6 MAIN Unit Lot 4 6 Parts Layout side B 1 2 3 4 5 a b c d e f...

Page 34: ...FT 891 Technical Supplement MAIN 7 Circuit Diagram MAIN Unit Lot 7 10...

Page 35: ...FT 891 Technical Supplement MAIN 8 MAIN Unit Lot 7 10 Parts Layout side A 1 2 3 4 5 A B C D E F...

Page 36: ...FT 891 Technical Supplement MAIN 9 MAIN Unit Lot 7 10 Parts Layout side B 1 2 3 4 5 a b c d e f...

Page 37: ...FT 891 Technical Supplement MAIN 10 Circuit Diagram MAIN Unit Lot 11...

Page 38: ...FT 891 Technical Supplement MAIN 11 MAIN Unit Lot 11 Parts Layout side A 1 2 3 4 5 A B C D E F...

Page 39: ...FT 891 Technical Supplement MAIN 12 MAIN Unit Lot 11 Parts Layout side B 1 2 3 4 5 a b c d e f...

Page 40: ...1045 CHIP CAP 1uF 10V B GRM188B11A105KA61D K22104808 1 A D1 C 1046 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 A D1 C 1047 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 A D1 C 1048 CHI...

Page 41: ...74823 1 A B5 C 1122 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 A C4 C 1123 CHIP CAP 180pF 50V CH GRM1882C1H181JA01D K22174241 1 A E1 C 1125 CHIP CAP 1uF 25V B GRM188B31E105KA75D K22144815 1 A...

Page 42: ...9 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 A B4 C 1210 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 B c5 C 1211 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 B c5 C 1212 CHIP...

Page 43: ...104810 13 B c1 C 1286 CHIP CAP 22pF 50V CH GRM1882C1H220JA01D K22174219 1 10 C 1287 CHIP TA CAP 22uF 16V TPSB226M016Y0600 K78120075 1 10 C 1288 CHIP TA CAP 22uF 16V TPSB226M016Y0600 K78120075 1 10 C 1...

Page 44: ...01D K22174823 1 B d2 C 1359 CHIP CAP 0 001uF 50V B GRM188B11H102KA01D K22174821 1 B d1 C 1360 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 B d2 C 1361 CHIP CAP 0 001uF 50V B GRM155B11H102KA01D...

Page 45: ...d4 C 1430 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 B d4 C 1431 CHIP TA CAP 10uF 16V TMCMA1C106MTRF K78120077 1 B d4 C 1433 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 A E5 C 1434 C...

Page 46: ...52 1 A E4 C 1507 CHIP TA CAP 220uF 4V TMCMB0G227MTRF K78060052 1 A E4 C 1508 CHIP CAP 0 0047uF 50V B GRM188B11H472KA01D K22174817 1 A D5 C 1509 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 A E4...

Page 47: ...CHIP TA CAP 47uF 16V TMCMC1C476MTRF K78120057 1 A E3 C 1573 CHIP TA CAP 47uF 16V TAJC476M016RNJ K78120125 13 A E3 C 1574 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 A E4 C 1575 CHIP CAP 0 1u...

Page 48: ...1647 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 B e3 C 1648 CHIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 B e3 C 1649 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 B e3 C 1650 C...

Page 49: ...C 1721 CHIP CAP 330pF 50V CH GRM1882C1H331JA01D K22174253 1 B b4 C 1721 CHIP CAP 0 0033uF 50V B GRM188B11H332KA01D K22174815 6 B b4 C 1722 CHIP CAP 0 022uF 50V B GRM188B11H223KA01D K22174839 1 B b4 C...

Page 50: ...1024 DIODE RN142S TE61 G2070994 1 A D3 D 1025 DIODE RN142S TE61 G2070994 1 A D2 D 1027 DIODE RN142S TE61 G2070994 1 A D2 D 1028 DIODE RN142S TE61 G2070994 1 A D2 D 1029 DIODE RN142S TE61 G2070994 1 A...

Page 51: ...2SN1D L1690602 1 A C1 FB1014 FERRITE BEADS BLM18BD182SN1D L1690602 1 A C1 FB1015 FERRITE BEADS BLM18BD182SN1D L1690602 1 A C1 FB1016 FERRITE BEADS BLM18BD182SN1D L1690602 1 A C1 FB1017 FERRITE BEADS B...

Page 52: ...M3225 102J L1691157 1 A E2 L 1012 M RFC 3 9uH LLM3225 3R9J L1691128 1 A E2 L 1013 M RFC 3 3uH LLM3225 3R3J L1691127 1 A E2 L 1014 CHIP COIL 100uH 5 NLV25T 101J PF L1691779 1 B b2 L 1015 M RFC 3 3uH LL...

Page 53: ...101J03L L1691013 1 B e3 Q 1001 IC NJM2902V TE1 G1091679 1 B c1 Q 1002 TRANSISTOR 2SC4081 T106 R G3340818R 1 B a2 Q 1003 TRANSISTOR 2SA1576A T106 R G3115768R 1 A E3 Q 1004 FET RTM002P02 TAPE G3070347 1...

Page 54: ...80 TRANSISTOR 2SA1576A T106 R G3115768R 1 B e1 Q 1081 IC TA75S01F TE85R F G1091593 1 B d3 Q 1082 IC BU2152FS TAPE G1093942 1 B c3 Q 1083 IC BA05FP BZE2 G1093209 1 A D4 Q 1084 TRANSISTOR 2SC4081 T106 R...

Page 55: ...185473 1 10 R 1010 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 6 R 1011 CHIP RES 3 3k 1 16W 5 RMC1 16 332JATP J24185332 1 10 R 1012 CHIP RES 22 1 16W 5 RMC1 16 220JATP J24185220 1 B a3 R 1013 CHI...

Page 56: ...473JATP J24185473 1 B b2 R 1081 CHIP RES 220 1 10W 5 RMC1 10T 221J J24205221 1 B c2 R 1082 CHIP RES 47 1 16W 5 RMC1 16 470JATP J24185470 1 B c2 R 1083 CHIP RES 47 1 16W 5 RMC1 16 470JATP J24185470 1...

Page 57: ...89045 1 A B5 R 1160 CHIP RES 47k 1 16W 5 RMC1 16S 473JTH J24189045 1 A B5 R 1161 CHIP RES 6 8 1 16W 5 RMC1 16 6R8JATP J24185689 1 A C2 R 1162 CHIP RES 220 1 16W 5 RMC1 16 221JATP J24185221 1 A A2 R 11...

Page 58: ...103 1 B b1 R 1247 CHIP RES 0 1 16W 5 RMC1 16 000JATP J24185000 1 B c1 R 1248 CHIP RES 470k 1 16W 5 RMC1 16 474JATP J24185474 1 B b1 R 1249 CHIP RES 33k 1 16W 5 RMC1 16 333JATP J24185333 1 B b1 R 1250...

Page 59: ...473 1 B d2 R 1326 CHIP RES 4 7k 1 16W 5 RMC1 16 472JATP J24185472 1 B d2 R 1327 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 B e1 R 1328 CHIP RES 4 7k 1 16W 5 RMC1 16 472JATP J24185472 1 B d2 R 13...

Page 60: ...J24183303 1 A D5 R 1401 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 B c4 R 1402 CHIP RES 6 8k 1 16W 5 RMC1 16 682JATP J24185682 1 A D5 R 1403 CHIP RES 1M 1 16W 5 RMC1 16 105JATP J24185105 1 A D5...

Page 61: ...24185103 1 B e1 R 1486 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 B e1 R 1487 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 B e1 R 1488 CHIP RES 22k 1 16W 5 RMC1 16 223JATP J24185223 1 B d4 R...

Page 62: ...ATP J24185103 6 B d4 R 1560 CHIP RES 47 1 16W 5 RMC1 16 470JATP J24185470 1 B d4 R 1561 CHIP RES 4 7k 1 16W 1 RMC1 16 472FTP J24183472 1 B e4 R 1562 CHIP RES 22k 1 16W 1 RMC1 16 223FTP J24183223 1 B e...

Page 63: ...1 B a2 R 1645 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 1 A A5 R 1646 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 1 A A5 R 1647 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A C4 R 1648 CHI...

Page 64: ...W 5 RMC1 16 102JATP J24185102 7 A A4 R 1727 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 7 B b3 R 1728 CHIP RES 6 8k 1 16W 5 RMC1 16 682JATP J24185682 7 A E3 R 1729 CHIP RES 4 7k 1 16W 5 RMC1 16 472...

Page 65: ...5000103 1 A E1 TP1022 CHECK TERMINAL RCTCTE Q5000103 1 A B2 TP1041 CHECK TERMINAL RCTCTE Q5000103 1 A B3 VR1001 POT 10k EVM3YSX50B14 J51833103 1 A C1 VR1001 POT 10k VG039NSNXTB103 J51848103 16 A C1 X...

Page 66: ...FT 891 Technical Supplement LOCAL 1 Circuit Diagram LOCAL Unit...

Page 67: ...FT 891 Technical Supplement LOCAL 2 Parts Layout LOCAL Unit side A side B 1 2 A B 1 2 a b...

Page 68: ...K22174244 1 A B1 C 4035 CHIP CAP 5pF 50V CH GRM1882C1H5R0CA01D K22174206 3 A B1 C 4036 CHIP CAP 0 0047uF 50V B GRM188B11H472KA01D K22174817 1 A B2 C 4037 CHIP CAP 0 001uF 50V CH GRM1882C1H102JA01D K2...

Page 69: ...14 1 B a2 C 4104 CHIP CAP 33pF 50V CH GRM1552C1H330JA01D K22178224 1 B b2 CF4001 CERAMIC FILTER SFECF10M7GA00 R0 H3900577 1 A A2 D 4001 DIODE 1SV325 TPH3 F G2070848 1 A A1 D 4002 DIODE 1SV325 TPH3 F G...

Page 70: ...029 CHIP RES 39 1 16W 5 RMC1 16 390JATP J24185390 1 B a2 R 4030 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 A A2 R 4031 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 A B2 R 4032 CHIP RES 100...

Page 71: ...FT 891 Technical Supplement PA 1 Circuit Diagram PA Unit...

Page 72: ...FT 891 Technical Supplement PA 2 Parts Layout side A PA Unit 1 2 3 4 5 A B C D E...

Page 73: ...FT 891 Technical Supplement PA 3 Parts Layout side B PA Unit 1 2 3 4 5 a b c d e...

Page 74: ...HIP CAP 0 1uF 25V B GRM188B11E104KA01D K22144814 1 A A2 C 5076 CHIP CAP 0 001uF 50V B GRM188B11H102KA01D K22174821 1 A A2 C 5077 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 A A1 C 5078 CHIP C...

Page 75: ...0V B GRM188B11H103KA01D K22174823 1 A C4 C 5189 CHIP CAP 0 001uF 250V U2J GRM21A7U2E102JW31D K22240325 1 A C3 C 5192 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 A B4 C 5193 CHIP CAP 0 01uF 50...

Page 76: ...0314 1 B a3 C 5297 CHIP CAP 18pF 250V C0G GQM2195C2E180JB12D K22240235 1 B a2 C 5300 CHIP CAP 27pF 250V C0G GRM21A5C2E270JW01D K22240306 1 B a4 C 5301 CHIP CAP 27pF 250V C0G GRM21A5C2E270JW01D K222403...

Page 77: ...02 T P0091174 1 A A3 J 5005 CONNECTOR IMSA 9202B 1 02 T P0091174 1 A A3 J 5011 CONNECTOR U FL R SMT 10 P1091155 1 A D1 J 5012 CONNECTOR B2B ZR LF SN P0090647 1 A A5 J 5016 CONNECTOR 30FLT SM2 TB LF S...

Page 78: ...J24185560 1 A A3 R 5016 CHIP RES 1k 1 16W 5 RMC1 16 102JATP J24185102 1 A A2 R 5017 CHIP RES 100k 1 16W 1 RMC1 16 104FTP J24183104 1 A B3 R 5018 CHIP RES 1k 1 16W 5 RMC1 16 102JATP J24185102 1 A B4 R...

Page 79: ...0 1 A C3 R 5109 CHIP RES 2 7k 1 16W 1 RMC1 16 272FTP J24183272 1 A E3 R 5110 CHIP RES 2 7k 1 16W 1 RMC1 16 272FTP J24183272 1 B a2 R 5111 CHIP RES 3 3k 1 16W 1 RMC1 16 332FTP J24183332 1 A E3 R 5112 C...

Page 80: ...FT 891 Technical Supplement VR5002 POT 2 2k VG039NCHXTB222 J51846222 16 A A2 VR5003 POT 2 2k EVM3VSX50BE3 J51843222 1 A A3 VR5003 POT 2 2k VG039NCHXTB222 J51846222 16 A A3 VR5004 POT 2 2k EVM3VSX50BE...

Page 81: ...FT 891 Technical Supplement DSP 1 Circuit Diagram DSP Unit Lot 1 10...

Page 82: ...FT 891 Technical Supplement DSP 2 Parts Layout side A side B DSP Unit Lot 1 10 1 2 3 A B 1 2 3 a b...

Page 83: ...FT 891 Technical Supplement DSP 3 Circuit Diagram DSP Unit Lot 11...

Page 84: ...FT 891 Technical Supplement DSP 4 Parts Layout side A side B DSP Unit Lot 11 1 2 3 A B 1 2 3 a b...

Page 85: ...188R61E106MA73D K22144818 11 A B1 C 6033 CHIP CAP 10uF 10V B GRM188B31A106ME69D K22104810 14 A B1 C 6034 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 B a2 C 6035 CHIP CAP 220pF 50V CH GRM1552C...

Page 86: ...2 1 B a3 C 6094 CHIP CAP 0 47uF 6 3V B GRM155B30J474KE18D K22088802 1 B b3 C 6095 CHIP CAP 10uF 25V B GRM188R61E106MA73D K22144818 1 B b2 C 6095 CHIP CAP 10uF 10V B GRM188B31A106ME69D K22104810 14 B b...

Page 87: ...6021 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 A B3 R 6022 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A B2 R 6023 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A A2 R 6024 CHIP RES 10k...

Page 88: ...HIP RES 33 1 16W 5 RMC1 16S 330JTH J24189007 1 B a2 R 6094 CHIP RES 33 1 16W 5 RMC1 16S 330JTH J24189007 1 B a2 R 6095 CHIP RES 33 1 16W 5 RMC1 16S 330JTH J24189007 1 B b2 R 6099 CHIP RES 2 2k 1 16W 5...

Page 89: ...FT 891 Technical Supplement PANEL 1 Circuit Diagram PANEL Unit...

Page 90: ...FT 891 Technical Supplement PANEL 2 Parts Layout side A side B PANEL Unit 1 2 A B C D E F G H 1 2 a b c d e f g h...

Page 91: ...1 B c1 C 7036 CHIP CAP 10pF 50V CH GRM1552C1H100JA01D K22178212 1 B c1 C 7037 CHIP CAP 10pF 50V CH GRM1552C1H100JA01D K22178212 1 B c1 C 7039 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 B c1...

Page 92: ...RRITE BEADS BLM18BD601SN1D L9190143 1 B f1 FB7008 FERRITE BEADS BLM18BD601SN1D L9190143 1 B f1 FB7009 FERRITE BEADS BLM18PG221SN1D L9190181 1 B f1 J 7001 CONNECTOR SB20 04WS P0090611 1 B a2 J 7002 CON...

Page 93: ...1 16W 5 RMC1 16S 471JTH J24189021 1 B d1 R 7050 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B d1 R 7051 CHIP RES 4 7k 1 16W 5 RMC1 16S 472JTH J24189033 1 B d2 R 7052 CHIP RES 4 7k 1 16W 5 RMC1 16...

Page 94: ...CK RES MNR04M0ABJ102 J42900039 1 B c2 RB7006 BLOCK RES MNR04M0ABJ102 J42900039 1 B e1 RB7008 BLOCK RES MNR04M0ABJ102 J42900039 1 B d1 RB7009 BLOCK RES MNR04M0ABJ102 J42900039 1 B d1 S 7001 ROTARY ENCO...

Page 95: ...16W 5 RMC1 16 271JATP J24185271 1 A R 8002 CHIP RES 270 1 16W 5 RMC1 16 271JATP J24185271 1 A R 8003 CHIP RES 270 1 16W 5 RMC1 16 271JATP J24185271 1 A S 8001 TACTILE SWITCH EVQPLHA15 N5090174 1 A S...

Page 96: ...SW B 1 SW B Unit Circuit Diagram Parts Layout FT 891 Technical Supplement...

Page 97: ...W5 G2071390 1 A J 8101 CONNECTOR 12FHJ SM1 TB LF SN P1091574 1 B R 8101 CHIP RES 270 1 16W 5 RMC1 16S 271JTH J24189018 1 A R 8102 CHIP RES 270 1 16W 5 RMC1 16S 271JTH J24189018 1 A R 8103 CHIP RES 270...

Page 98: ...t Diagram Parts Layout Parts List REF DESCRIPTION VALUE V W TOL MFR S DESIG YAESU P N VERS LOT SIDE LAY ADR PCB with Components CD0240001 S 8301 ROTARY ENCODER TP70D00E20 22F B103 Q9001016 1 FT 891 Te...

Page 99: ...ced without the permission of YAESU MUSEN CO LTD YAESU MUSEN CO LTD Tennozu Parkside Building 2 5 8 Higashi Shinagawa Shinagawa ku Tokyo 140 0002 Japan YAESU USA 6125 Phyllis Drive Cypress CA 90630 U...

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