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Yaesu FT-411 Technical Supplement
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Yaesu FT-411 Technical Supplement

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LATE PRODUCTION LOT ADDENDUM
FOR
·
FT-411
TECHNICAL SUPPLEMENT
MOTHER BOARD UNIT (PROD. LOT 17t)
IF UNIT (PROD. LOT 17 t)
ANT SW UNIT (PROD. LOT 17t)
'
. ,
• ..
YAESU MUSEN CO., LTD.
C.P.O. BOX 1500, TOKYO, JAPAN
,.
YAESU U.S.A.
17210 Edwards Rd., Cerritos, California 90701, U.S.A.
YAESU EUROPE B.V.
Snipweg 3. 111 SAA Scbipbol,
The Netherlands

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Summary of Contents for Yaesu FT-411

  • Page 1 MOTHER BOARD UNIT (PROD. LOT 17t) IF UNIT (PROD. LOT 17 t) ANT SW UNIT (PROD. LOT 17t) • .. YAESU MUSEN CO., LTD. C.P.O. BOX 1500, TOKYO, JAPAN YAESU U.S.A. 17210 Edwards Rd., Cerritos, California 90701, U.S.A. YAESU EUROPE B.V.
  • Page 4 obverse view of "chip-only" side CATHODE ANODE 1/CATHODE """-. . ANODE · Marked Surface Marked Surface ( 0101,109,11 0 ) 1SS226 (C3) 1SS184 (83) ( 0102,107,108 ) ANODE(Di 2) ANODE( Di,) • Marked Surface Marked Surface 1 SS272 (Al ) (0106) IMN10 (NlO) (0104)
  • Page 5 <( HJ Cl9 <( 1£lJ (f)Z _J a. () 0 _J _J (f)(f) a: a: f- x x x ao• )IJQ,J BlSd Bl.Si 1301 � A91 eso·o ESIJ > SEMICONDUCTORS SUB-UNITS...
  • Page 6 MOTHER BOARD UNIT C P0958002 PCB with Components w/ sub-units Yers. (REG,IF,ANT SW,PLL w/clock, Units) C P0958003 PCB with Components w/ sub-units Yers. (REG,IF,ANT SW,PLL w/clock, Units) F30181102D Printed Circuit Board c 0101 K22171008 CHIP CAP. GRM40F473Z50PT 0.047uF 0102 K22174235 CHIP CAP.
  • Page 7 0154 K22174821 CHIP CAP. GRM39B102K50PT O.OOluF 0155 K22120805 CHIP CAP. GRM40R683Ml6PT 0.068uF c 0156 K78080002 CHIP 4.7uF 6.3V TA CAP. F950J475MSAAF1Q2 c 0157 K22174235 lOOpF CHIP CAP. GRM39CH101J50PT 0158 K22174821 CHIP CAP. GRM39B102K50PT O.OOluF c 0159 K22174821 CHIP CAP. GRM39B102K50PT O.OOluF 0160 K40129060...
  • Page 8 0113 G3327127G TRANSISTOR 2SC2712GR J24185153 1/16W 0101 CHIP RES. RMCl/16 153JATP 0102 J24185472 4.7K 1/16W CHIP RES. RMCl/16 472JATP 0103 J24185821 1/16W CHIP RES. RMCl/16 821JATP 0104 J24185100 l/16W CHIP RES. RMCl/16 lOOJATP 1/16W 0105 J24185221 CHIP RES. RMCl/16 221JATP 1/16W 0106 J24185221...
  • Page 9 20KA VROlOl J60800149 POT. RK0971111 20KB VR0102 J60800150 POT. RK0971110 UM-1 21. 245MHZ X 0101 H0102966 XTAL 2lR15AU XFOlOl H1102174 XTAL FILTER 21R15AU - 7 -...
  • Page 10 IF UNIT (No. obverse view of "mixed-component" side obverse view of "chip-only" side ANODE 1/CATHODE 2 PIN 10 ANODE 2 Marked Surface Marked Surface TK10487M (0501) DTC1 44EK (26) (0502) 1 SS226 (C3) (0501) -------------------------------------------, UNIT F3019102 C512 0.068 16V R C513 RSIO IK 220oF CH...
  • Page 11 IF UNIT CP0961003 with Components Vers. CP0961004 with Components Vers. F3019102A Printed Circuit Board 0501 K22120805 CHIP CAP. GRM40R683M16PT 0.068uf 0502 K22170817 CHIP CAP. GRM40B103M50PT O.OluF 0503 K22170817 GRM40B103M50PT O.OluF CHIP CAP. 0504 K22170229 CHIP CAP. GRM40CH560J50PT 56pF 120pF 0505 K22170237 CHIP CAP.

  • Page 12: Ant Sw Unit

    ANT SW UNIT (No. obverse view of "mixed-component" side obverse view of "chip-only" side � ' BASE(Tr2) � COL LEC TOR EMITTER (Common ) BASE(Tr,) ' BAS E 'COLLECTOR(Tr2) CAT HOD E EM ITT ER �'COLLECTOR(Tr,) Marked Surface Marked Surface 2SC271 2GR (LG) (070 2) FMS1 (Sl)
  • Page 13 ANT SW UNIT C P0962001 with Components F3019103B Printed Circuit Board 0701 K22170213 CHIP CAP. GRM40CH120J50PT 12pF 0702 K22170225 CHIP CAP. GRM40CH390J50PT 39pF c 0703 K22170205 CHIP CAP. GRM40CH040C50PT 0704 K22170225 CHIP CAP. GRM40CH390J50PT 39pF 0705 39pF K22170225 CHIP CAP. GRM40CH390J50PT 0707 K22170213...
  • Page 14 - 1 -C NTL - U N IT F3018101 I TONE L CO AF CNT L CPUS �-------------------------------------� HD404608A35H ----�--T------->- ---- --- ··· ·· SAVE KEY BOARD ---·TX FT-411 R· � BLOCK DIAGRAM TONE �, . ···- ·{]MIC . � � �BURST ·----------·--··-- -· -·····- ····' L--------------------------------�...

  • Page 15: Board Locations

    Before realignment, the cause of the fault must be determined and corrected. In-Line Wattmeter (accurate at 170 MHz) The small size of the FT-411 makes it difficult for Dummy Load (50-ohm, non-reactive at 170 the average operator to service. For this reason,...

  • Page 17: Receiver Alignment Setup

    Set up the test equipment as shown above for receiver alignment. RF Signal Oscillosc ope Generator With the transceiver and signal generator both tuned to the center of coverage 1 45 or 146 Millivoltmeter MHz), inject a 1 kHz tone with ±3.5 kHz devi­ ation at 40 dBu to the antenna jack.
  • Page 18 1&:...
  • Page 20 YAESU Copyright © 1990 No portion of this manual Yaesu Musen Co., Ltd. may be reproduced rights reserved. without the permission of Yaesu Musen Co., Ltd. E2580901 (1070-BK)