Yaesu FT-23R Technical Supplement
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Yaesu FT-23R Technical Supplement

Yaesu FT-23R Technical Supplement

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FT-23R
TECHNICAL SUPPLEMENT
YAESU MUSEN CO.,
BOX 1500,
C.P.O.
TOKYO, JAPAN
YAESU U.S.A.
17210
Edwards Rd., Cerritos , California
YAESU EUROPE
3. 111
Snipweg
SAA Schiphol,
LTD.
90701,
U.S.A.
B.V.
The Netherlands

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  • Page 1 FT-23R TECHNICAL SUPPLEMENT YAESU MUSEN CO., LTD. BOX 1500, C.P.O. TOKYO, JAPAN YAESU U.S.A. 17210 90701, Edwards Rd., Cerritos , California U.S.A. YAESU EUROPE B.V. 3. 111 Snipweg SAA Schiphol, The Netherlands...
  • Page 2 Eatly and late models can be listinguished by the location of the clone switch, as shown below. BUTION COVERS CLONE SWITCH CLONE SWITCH Early Model Late Model...

  • Page 3: Table Of Contents

    Early Model FT-23R CONTENTS · . 1-1 · MOTIIB R BOARD . 1-4 FRONTEND UNIT PLL UNIT . 1-5 VCOUNIT . 1-5 REG UNIT . 1-6 · MIC AMP UNIT . 1-6 · S METER UNIT . 1-7 ANT SW UNIT .
  • Page 6 M OTHER BOA R D (obverse view of "chip-only" side) (reverse view of "component" side) CHIP SEMICONDUCTOR CROSS-REFFERENCE REPLACEMENT ORIGINAL NOMENCLATURE NOMENCLATURE (MARKING) (MARKING) AND PART NUMBER AND PART NUMBER Ql 02 ,605 ,606,607,1002, 1012 2SA812F /G(M6/M7) 2SA1052C/D(MC/MD) 2SA1179 F /G(M6/M7) 2SA1162GR(SG) G3111620G G3108120F/G...
  • Page 7 ,--------------- ------------- ---------------- ---------------- -----1 � To• � �l ·- <lil: _____ - - I ----- L.A4145 XFo• � : i ili � ili ili g g g � ..I! � "! --- � FRCNrE!'D l..N I T F2838111A "' I "...

  • Page 8: Frontend Unit

    F R ONTE N D UNIT obverse view of obverse view of "FET" "diode" side side f'F. NOTED. RESISTOR VALLES ARE 1/10W: CAPACITOR VALl.ES ARE SOwv: lf\D.X:TOO VALLES 1-El'-RIES. LN... E SS OTl-ERWJSE � SOURCE DRAIN reverse view of "FE T " reverse view of 2SK302Y (TY) side...

  • Page 9: Pll Unit

    PLL UNIT PIN 5 PIN 8 NOTCH M C 1 2 0 1 7P (040 1 ) obverse view of "chip-only" side "mixed-component" side PIN 20 JLC 1 007P (0402) reverse view of reverse view of "chip-only" side "mixed-component" side 15ko•...

  • Page 11: S Meter Unit

    S METER UNIT obverse view of obverse view of SIG IN "bottom" side "top" side Marked Surf a ce 2SC27 1 2G R (LG) (080 1 ,802) �F. RESISTOR VALUES ARE IN 1/10W: CAPACITOR VALUES. ARE SOwv: UN..E SS OTl-ERWISE NOTED.

  • Page 12: Cntl Unit

    CNTL UNIT TOP VIEW H 0 6 1 3 9 0 1 A5 1 (0 1 00 1 ) µP04066BG (0 1 008) ouTi ? vcc µP0400 1 BG (0 1 009) PST523G (0 1 007) Marked Surf a ce 2SA 1 1 .
  • Page 13 CNTL UNIT (obverse view of "display" side) (reverse view of "microprocessor" side)
  • Page 14 r----------------------------------------------------------- 1 CNTL U\JIT F2838105A lNo.10xx l CPEN SHJA x 0 0 x x 0 x 0 0 x 0 0 0 x 0 � 0 x x 0 � x 0 x 0 x 0 x 0 C D Ji l-0313901A51 DIAL 2SA1162GR...

  • Page 15: Alignment

    Inline Wattmeter: 150 MHz replacement and service should be performed only by an authorized Yaesu representative, Regulated DC Power Supply: the warranty policy may be voided. adjustable from 4 to l 7V, following test equipment is required for...
  • Page 16 & TRANSMITTER Transmitter Output Power test equipment shown (1) Tune the transceiver to band center (14 5 diagram below for transmitter alignment. Ad­ or 146 MHz), and set the LOW switch to just the supply voltage to 12.0V for all steps the undepressed position.
  • Page 17 RECEIVER S-meter Sensitivity Set up the test equipment as shown above for (1) With the transceiver and RF signal gen­ receiver alignment. erator set up as in step ( 1) of the above Sensitivity adjustment procedure, set the signal generator for 20 dBu output. Sensitivity ( 2) Adjust YR 103 on the Mother Board so that ( 1) With the transceiver and RF signal gen­...

  • Page 18: Parts List

    PARTS LIST MAIN CHASSIS Symbol N Part No. Name & Description CONNECTOR P1090541 BNC-RM ANT CERAMIC FILTER CF101 H3900280 LF-B12 MISCELLANEOUS R3116390 DIAL Knob RESISTORS R112 J24205479 R3116620 VOL S L Knobs RMC l/10T4R7J l/lOW 4.Ul " " lOOJ " R3508300 PTT Button Cover R113...
  • Page 19 IF UNIT TRANSFORMERS L0021416 145MHz TlOl Symbol No. Part No. Name & Description T102-104 L0021418 F2838102 Printed Circuit Board C028382AA PCB with Com onents INDUCTORS LlOl,102 Ll190275 LAL02NAR22M 0.22 H L103 L1020671 Q302 G1090698 TK10420M CONNECTORS TRANSISTOR JlOl P0090599 IL-Y-5P-S15T2-EF Q301 G3326207B 2SC2620QBTR...
  • Page 20 K78080004 Chip Tantalum 6.3W 15µF C311 TRIMMER CAPACITOR TC401 K91000154 ECR-KN020EllX 20oF INDUCTORS INDUCTOR Lll90344 LAL02KR100K lOuH L401 Ll190311 LAL02NA221K 220uH L301 Symbol No. Part No. Name & Description F2838108A Printed Circuit Board Symbol No. Part No. Name & Description F2838106 Printed Circuit Board C028388AA PCB with Comoonents...
  • Page 21 C602 K78100003 Chip Tantalum lOWV 6.8µF TRIMMER CAPACITOR TC501 K91000152 ECR-JA040G 12X (F951A685MTAAF1Q2) " " C607 K78080003 6.3WV lOµF (F950J106MTAAF1Q2) INDUCTORS L501-503 L1190283 LAL02NA1ROM lµH L1190342 LAL02KRR22M 0.22 H L504 MIC AMP UNIT S mbol No. Part No. Name & Descri tion F2838101 Printed Circuit Board TRANSFORMER...
  • Page 22 DIODES INDUCTORS D801,802 G2090029 1N60 1901 11190344 LAL02KR100K lOµH 1902, 1904 10021683 1903 10021682 RESISTORS R802 J24205102 RMC 1/10T102J J01245102 Carbon film l/4W R804 TERMINAL POSTS R801,803 J24205104 RMC l/10T104J lOOkQ TP901 Q5000016 TP-E/MS-60124 CAPACITORS C801 K22170801 Chip Ceramic 50WV 470pF B (C2012B1H471MFA) CNTL UNIT "...
  • Page 23 SPEAKER RESI TOR SP1001 M4090063 T036S13Y2611 1017 J24205221 1 10T221 1 lOW 220Q " " " 2420 331 331J 3 OQ " " " J2420 4 1 4 lJ 470Q " " " J24205561 " " " 24205102 102J " "...

  • Page 24: Block Diagram

    Q602 '-(] J LC1007P HD613901A51 P LL DATA T/R SW TX 5V OSC/DIV LATCH ______ I ,I, X401 �-----------------------� L------------------------� FT-23R -RECEIVE A1.C1.G1 A2.C2.E2 A1.A2.D.E1.E2 B.C1.C2 --- TRANSMIT 144-148M-fz 140-1601'-Hz 144-1461"Hz - COM"ON/CNTL BLOCK DIAGRAM 10.240�z 12.�z 133.3-137.31'-Hz 129.3-149.31'-Hz 133.3-13 5 .31'-Hz...
  • Page 25 Late Model FT-23R CONTENTS MOTHER BOARD . 2-1 IF UNIT . 2-4 PLL UNIT . 2-5 VCOUNIT . 2-6 REG UNIT . 2-7 . 2-8 MIC AMP UNIT · ANT SW UNIT . 2-8 . 2-9 CNTL UNIT . 2-12 DUMMY UNIT·...

  • Page 27: Mother Board

    MOTHER BOAR D ( obverse view of "mixed - component" side) OUTPUT Marked Surface ( HB) : (02002) 2SC3 1 20 2SC 3 356 (R22) : (02003) M57 7 9 6 M A (02009 ) FA 1 A4 M (L 3 3 ) : (02005) 2S C2 7 1 2 GR (LG) : (02007 ) 2SA 1 1 6 2 G R...
  • Page 29 i-------------------- --------------------- --------------------- --------------------- ------ ••T -� M O T H E R U N I T � � c20•• F 3 0 5 8 1 Q 1 B 1 8 • C H C203 5 "" A N T SW U N I T •% •om F 3 0 5 7 1 05 A...
  • Page 32 V CO UNIT o s c B U F B U F obverse view of obverse view of "bottom" side "top" side SOURCE GATE DR A I N Marked Surf a ce Marked Surf a ce 2SC2 7 5 9 ( U 2 2 ) : (0502) 2SK238 ( K 1 7 ) : (050 1 ) �...
  • Page 34 M I C AMP UN IT N J M 2 9 0 2 M ( 07 0 1 ) obverse view of obverse view of "mixed-component" side " c hip-only" side � - - - - - - - - - - - - - - - - - - - - - - - - - - - - -� - - - - - - - - - - - - - - - - - - - - - - � t N l'F .
  • Page 36 CNTL U N IT CATHODE ( D i 2 ) � (obverse view of "chip-only" side) ANODE( D i , ) ANODE • "-._ CATHODE Marked Surface CATHODE • 1 SS3 1 9 (A4) : ( 0 1 004) Marked Surface 1 SS300 (A3) : ( 0 1 00 1 , 1 002) CATHODE CATHODE...
  • Page 37 r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 06090060 F 3 0 5 8 1 0 2 A L C D...
  • Page 38 D UMMY UN IT obverse view o f obverse view of •• connector" side "chip-onl y " side r - - - - - - - - - - - - - - - - - - - - - - - - - - , D U M M Y U N I T F 3 0 S 8 1 0 3 _ _ _ _ _ _ _ _ _ _ _...

  • Page 39: If Unit

    A L I G N M E N T The FT-23R has been aligned by highly-skilled AF Millivoltmeter • • technicians at the factory, and is designed so that no Deviation Meter further alignment should ever be required. However, in...
  • Page 40 PLL & Transmitter Transmitter Output Po wer ( 1 ) Tune the transceiver to band center ( 145 or 146 Set up the te st equipment as shown below for trans­ MHz), and select high power output (LOW switch mitter alignment Adjust the supply voltage to 12.0V not depres sed).
  • Page 41 Receiver (3) Adjust T200 1 through T2005 on the Mother Board f o r maximum S-meter indication, reducing the gen­ Set up the test equipment as shown below for re­ erator level if more than 4 bargraph segments turn ceiver alignment. on .
  • Page 42 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - �...
  • Page 43 PARTS LIST MOTHE BOARD UNI T C S085 1 0 0 2 P . C . B . W/ COMP . /M I C AMP/ I F/VCO/ ANT SW/PLL/REG U N I T S TYP A l ) C S085 1 0 03 P .
  • Page 44 K 2 2 1 7 4 8 0 9 2 04 8 C HI P CAP . GRM3 9 B 1 0 2 M5 0 PT O . O O luF 5 0 V 2 0 4 9 K 2 2 1 2 0 8 0 5 CH I P CAP .
  • Page 45 R 2 0 2 7 J 2 4 185 1 03 CH I P RES . RMC l / 1 6 1 0 3 JA T P l O K 1 / 1 6 W J 2 4 1 85 1 0 2 RMC l / 1 6 1 0 2 JAT P 1 / 1 6 W R 2 0 2 8...
  • Page 46 I F UN I T C A0 0 0 7 0 0 1 P . C . B . W/COMP . F3 1 4 9 1 00 P . C . B . W/0 COMP . 0 3 0 1 K 2 2 1 4 4 8 0 2 C H I P CAP .

  • Page 47: Pll Unit

    PLL UN I T CAO O l O O O Z P . C . B . W/ COM P . ( T YP A l ) CA0 0 1 0 0 0 3 P . C . B . W / C O M P . ( TYP A Z ) C A 0 0 1 0 0 0 4 P .
  • Page 48 R 0 4 1 0 J24 185 1 0 2 CHI P R E S . R M C l / 1 6 1 0 2JAT P 1 / 1 6 W T C0 4 0 1 K 9 1 0 0 0 1 5 1 T R I MMER CAP .

  • Page 49: Vcounit

    * * * VCO U N I T CP 1 9 9 2 0 0 1 P . C . B . W/COMP . F3 0 5 7 1 0 3 P . C . B . W/O CO MP . F3 0 5 7 1 04 P .

  • Page 50: Reg Unit

    UN I T C A 0 0 1 1 0 0 1 P . C . B . W/COMP . F3 0 5 7 1 0 7 A P . C . B . W / 0 CO MP . 0 6 0 1 K 2 2 1 7 4 8 0 9 CH I P CAP .

  • Page 51: Mic Amp Unit

    M I C AMP UN I T CA 0 0 0 8 0 0 2 P . C . B . W/COMP . ( TYP A l ) CA0 0 08 0 0 3 P . C . B . W/COMP . ( TYP A 2 ) CA0 0 0 8 0 0 4 P .
  • Page 52 R 0 7 1 3 J24 185 1 0 4 CH I P RES . RMC l / 1 6 1 0 4 JATP l O O K 1 / 1 6 W R 0 7 1 4 J 2 4 1 85 2 2 5 CH I P RES .
  • Page 53 ANTENNA SW UN I T CA0 0 05 0 0 1 P . C . B . W/COM P . F3 0 5 7 1 0 5 A P . C . B . W / O COMP . 0 9 0 1 K 2 2 1 7 08 0 5 CH I P CAP .
  • Page 54 CONTROL UNI T CS084 7 0 0 2 P . C . B . W/ COMP . ( TYP A l ) C S 084 7 0 0 3 P . C . B . W/ COMP . ( TYP A Z ) C S 0 84 7 0 0 4 P .
  • Page 55 G 2 0 7 0 084 D I O D E 1 S S3 0 0 T E85 R 1 0 0 2 D 1 0 03 G 2 0 7 0 1 0 6 D I OD E RD3 . 9 M B 2 - T 2 B D 1 0 04 G 2 0 7 0 08 0 D I O D E...
  • Page 56 R 1 0 08 J 2 4 185 1 0 3 C H I P R E S . RM C l 1 6 1 0 3 JA T P l O K 1 6 W R 1 0 0 9 J 2 4 1 85 1 0 5 C H I P R E S .

  • Page 57: Dummy Unit

    D UMMY UN I T C S 0 85 3 0 0 1 P . C . B . W/CO MP . F3 058 1 03 P . C . B . W/O CO MP . 9 2 3 0 B - l - 0 3 Z 0 0 3 - T P 3 0 0 1 P 0 0 9 0 7 0 2 CONNECTO R...

  • Page 58: Exploded View

    E X P L O D E D V I EW R35 081 20 Ke ypad Plate -... . R0507950B ---. ._ __ Pl ate R7 1 20350 Sheet R7 1 1 8680 Spon g e -- R051 3330 R7 1 24630 Spri ng P l a te...
  • Page 59 grayscale 6 agosto...
  • Page 60 YA E S U Copyright © 1 9 9 0 No port i on of th i s manua l Yaesu Mosen C o . , Ltd. may be reproduced All rights reserved . w i thout the perm i s s i on of Yaesu Musen C o ..

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