Yaesu FT-270E Technical Supplement - Specifications

Summary of FT-270E

  • Page 1

    1 ft-270r/e technical supplement © 2010 vertex standard co., ltd. Eh022n91b technical supplement specifications ....................................................................................................................................................................2 exploded view & miscel...

  • Page 2: Specifications

    2 ft-270r/e technical supplement specifications general frequency ranges: rx 137 (136) - 174 mhz tx 144 - 146 (148) mhz channel steps: 5/10/12.5/15/20/25/50/100 khz frequency stability: ±5 ppm @ –14° to +140° f (–10° to +60° c) repeater shift: ±600 khz emission type: f2d , f3e antenna impedance: 50-...

  • Page 3

    3 ft-270r/e technical supplement exploded view & miscellaneous parts g6090166 lcd m3290045 mic. Element ra113680a light guide ra0580700 inter connector ra0578200 mic holder rubber cp8221004 panel assy cp8220001 rear case assy ra0577600 ext cap ra0304300 washer ra1113400 knob ra1113300 knob ra008890a...

  • Page 4

    4 ft-270r/e technical supplement exploded view & miscellaneous parts note.

  • Page 5: Block Diagram

    5 block diagram ft-270r/e technical supplement.

  • Page 6: Block Diagram

    6 block diagram ft-270r/e technical supplement note.

  • Page 7: Circuit Description

    7 ft-270r/e technical supplement circuit description receive signal path incoming rf signal is from the antenna jack is delivered to the main unit and passed through the low-pass filter network, antenna switching diode d1003 and d1004 (both rls135 ), and low-pass filter network to the rf amplifier q...

  • Page 8: Circuit Description

    8 ft-270r/e technical supplement circuit description the phase comparator section of q1003 (mb15a01pfv1) compares the phase between the frequency-divided os- cillation frequency of the vco circuit and comparative frequency and its output is a pulse corresponding to the phase difference. This pulse i...

  • Page 9: Alignment

    9 ft-270r/e technical supplement alignment introduction the ft-270r/e is carefully aligned at the factory for the specified performance across the amateur band. Realign- ment should therefore not be necessary except in the event of a component failure. Only an authorized vertex stan- dard representa...

  • Page 10: Alignment

    10 ft-270r/e technical supplement alignment test setup set up the test equipment as shown below for transceiver alignment. Entering the alignment mode alignment of the ft-270r/e is performed using a front panel software-based procedure. To perform alignment of the transceiver, it must first be place...

  • Page 11: Alignment

    11 ft-270r/e technical supplement rf front-end tuning 1. Connect the dc voltmeter to tp1031 on the main unit, then inject a 145.050 mhz signal at a level of +10 dbμ (with 1 khz modulation @±3.5 khz deviation) from the rf signal generator. 2. Rotate the dial knob to select the display to “b0106.” 3. ...

  • Page 12: Alignment

    12 ft-270r/e technical supplement alignment ctcss tx deviation 1. Rotate the dial knob to select the display to “b0206,” then activate the ctcss encoder with a “100 hz” tone, and set the transmit power level to “low.” 2. Press the [f/w] key, then press the [mr/mw(skip)] key to set the alignment para...

  • Page 13: Main Unit

    13 main unit ft-270r/e technical supplement circuit diagram 1.78 v 1.13 v 1.29 v 1.83 v 2.15 v 3.18 v 3.18 v 5.12 v 8.13 v 8.05 v 1.91 v 1.29 v 8.00 v 3.75 v 3.72 v rx: 1.93 v tx: 1.89 v 2.45 v 3.12 v 0.42 v 4.43 v 5.08 v 3.30 v 2.08 v @ low freq. Wide: 5.05 v narrow: 0 v rx: 4.41 v tx: 5.05 v rx: 5...

  • Page 14: Main Unit

    14 main unit ft-270r/e technical supplement note.

  • Page 15: Main Unit

    15 main unit ft-270r/e technical supplement parts layout (side a) b a d c f e g 1 3 2 4 bd4845fve (q1006) hd64f2266 (q1001) da221 (k) (d1025) 1ss321 (f9) (d1002) dan222 (n) (d1024) 2sa1774 (fr) (q1030, 1031, 1032, 1034, 1040, 1059) 2sc4617 (br) (q1034, 1038, 1039, 1042, 1061, 1062, 1064, 1065, 1069,...

  • Page 16: Main Unit

    16 main unit ft-270r/e technical supplement parts layout (side b) b a d c f e g 1 3 2 4 2sa1774 (fr) (q1018, 1036) 2sc4617 (br) (q1028, 1052, 1055, 1060, 1066, 1072, 1073, 1081, 1082) 2sc5005 (73) (q1011, 1012, 1013, 1014, 1017) dtc144ee (26) (q1015, 1016, 1025, 1026, 1047, 1048, 1049, 1051, 1070, 1...

  • Page 17: Main Unit

    17 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement pcb with components cb3164015 vx-270r usa a2 cb3164016 vx-270r exp a1 cb3164017 vx-270r exp a2 cb3164018 vx-270r exp a3 cb3164019 vx-270e exp b1 cb3164020 vx-270e exp b2...

  • Page 18: Main Unit

    18 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement c 1069 chip cap. 0.001uf 50v b grm155b11h102ka01d k22178809 1- b g1 c 1070 chip cap. 0.047uf 10v b grm155b11a473ka01d k22108801 1- b g2 c 1071 chip cap. 47pf 50v ch grm1...

  • Page 19: Main Unit

    19 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement c 1142 chip cap. 0.01uf 16v b grm36b103k16pt k22128804 1- b g3 c 1142 chip cap. 0.01uf 25v b grm155b11e103ka01d k22148834 28- b g3 c 1143 chip cap. 0.01uf 16v b grm36b10...

  • Page 20: Main Unit

    20 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement c 1197 chip cap. 0.1uf 10v b grm155b11a104ka01d k22108802 1- a d1 c 1198 chip cap. 0.001uf 50v b grm155b11h102ka01d k22178809 1- a d1 c 1199 chip cap. 0.001uf 50v b grm1...

  • Page 21: Main Unit

    21 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement c 1259 chip cap. 0.0047uf 50v b grm155b11h472ka01d k22178838 28- a d3 c 1260 chip cap. 2pf 50v ck grm1554c1h2r0bz01d k22178289 1- b d2 c 1261 chip cap. 22pf 50v ch grm15...

  • Page 22: Main Unit

    22 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement d 1045 led 19-215uyoc/s530-a2/tr8 g2070884 1- a a1 d 1045 led 19-213/s2c-an1p2b/3t g2071096 5- a a1 d 1046 led 19-215uyoc/s530-a2/tr8 g2070884 1- a b1 d 1046 led 19-213/...

  • Page 23: Main Unit

    23 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement q 1008 ic tda2822l-s08-r g1094497 26- a g3 q 1009 fet 2sk3476(te12l.Q) g3834768 1- a f1 q 1010 fet 2sk3074(te12l.F) g3830748 1- b d1 q 1011 transistor 2sc5005-t1 g335005...

  • Page 24: Main Unit

    24 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement q 1052 transistor ktc4075e-gr-rtk/p g3070356 10- b f 4 q 1054 transistor dta144ee tl g3070074 1- b d3 q 1054 transistor kra304e-rtk/p g3070354 10- b d3 q 1055 transistor...

  • Page 25: Main Unit

    25 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement r 1017 chip res. 33k 1/16w 5% rmc1/16s 333jth j24189043 1- b b1 r 1018 chip res. 330 1/16w 5% rmc1/16s 331jth j24189019 1- b d1 r 1020 chip res. 330 1/16w 5% rmc1/16s 33...

  • Page 26: Main Unit

    26 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement r 1090 chip res. 39k 1/16w 5% rmc1/16s 393jth j24189044 1- b d1 r 1091 chip res. 150 1/16w 5% rmc1/16s 151jth j24189015 1- b d1 r 1092 chip res. 100 1/16w 5% rmc1/16s 10...

  • Page 27: Main Unit

    27 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement r 1158 chip res. 33k 1/16w 5% rmc1/16s 333jth j24189043 1- b g3 r 1159 chip res. 10k 1/16w 5% rmc1/16s 103jth j24189037 1- b g3 r 1160 chip res. 2.7k 1/16w 5% rmc1/16s 2...

  • Page 28: Main Unit

    28 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement r 1230 chip res. 68k 1/16w 0.5% rr0510r-683-d j24189163 1- b b2 r 1231 chip res. 10k 1/16w 0.5% rr0510p-103-d j24189143 1- b b2 r 1232 chip res. 4.7k 1/16w 0.5% rr0510p-...

  • Page 29: Main Unit

    29 parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr main unit ft-270r/e technical supplement r 1304 chip res. 100k 1/16w 0.5% rr0510r-104-d j24189167 1- a d2 r 1304 chip res. 100k 1/16w 0.5% mcr01mzpd1003 j24189386 46- a d2 r 1305 chip res. 100k 1/16w 0.5% rr051...

  • Page 30: Main Unit

    30 parts list main unit ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ft-270r/e technical supplement r 1374 chip res. 4.7k 1/16w 5% rmc1/16s 472jth j24189033 1- a g1 r 1375 chip res. 0 1/16w 5% rmc1/16 000jatp j24185000 4- r 1376 chip res. 0 1/16w 5% rmc1/16 000jatp j24...

  • Page 31

    31 ft-270r/e technical supplement ftd-7 dtmf paging unit (option) circuit diagram parts layout dta144ee (16) (q6002, 6005) dtc144ee (26) (q6004) 2sc4617 (br) (6003) bu8872fs (q6001) (side a) (side b).

  • Page 32

    32 ft-270r/e technical supplement parts list ref description value v/w tol. Mfr's desig vxstd p/n vers. Lot side lay adr ftd-7 dtmf paging unit (option) printed circuit board aae33x000 fr0133600 1- c 6001 chip cap. 0.022uf 16v b grm36b223k16pt k22128806 1- c 6002 chip cap. 0.033uf 10v b grm36b333k10...

  • Page 34

    14 ft-270r/e technical supplement copyright 2010 vertex standard co., ltd. All rights reserved no portion of this manual may be reproduced without the permission of vertex standard co., ltd..