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Seitenansicht 0
1
Specification .......................................................................................................................................... 2
Exploded View & Miscellaneous Parts.............................................................................................4
Block Diagram ....................................................................................................................................... 5
Circuit Description .............................................................................................................................. 7
Alignment............................................................................................................................................... 9
Board Unit (Schematics, Layouts & Parts)
MAIN Unit ....................................................................................................................................................................... 15
Filter Unit ......................................................................................................................................................................... 31
SW Unit ............................................................................................................................................................................. 35
VCO Unit .......................................................................................................................................................................... 39
©2007 VERTEX STANDARD CO., LTD. EH028M90A
Technical Supplement
VX-3R
VHF/UHF
ULTRA-COMPACT DUAL-BAND TRANSCEIVER
WITH WIDE BAND COVERAGE
Introduction
This manual provides the technical information necessary for servicing the VX-3R Ul-
tra-Compact Dual-Band Transceiver.
Servicing this equipment requires expertise in handing surface-mount chip components.
Attempts by non-qualified persons to service this equipment may result in permanent
damage not covered by the warranty, and may be illegal in some countries.
Two PCB layout diagrams provided for each double-sided board in this transceiver.
Each side of the board is referred to by the type of the majority of components installed
on that side (“Side A” or “Side B”). In most cases one side has only chip components,
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 to be correct, VERTEX STANDARD
assumes no liability for damage that may occur as a result of typographical or other
errors that may be present. Your cooperation in pointing out any inconsistencies in the
technical information would be appreciated.
Contents
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
VERTEX STANDARD
(
AUSTRALIA
)
PTY., LTD.
Normanby Business Park, Unit 14/45 Normanby Road
Notting Hill 3168, Victoria, Australia
Important Note
This transceiver was assembled using Pb (lead) free solder, based on the RoHS specification.
Only lead-free solder (Alloy Composition: Sn-3.0Ag-0.5Cu) should be used for repairs performed on this appara-
tus. The solder stated above utilizes the alloy composition required for compliance with the lead-free specification,
and any solder with the above alloy composition may be used.
Seitenansicht 0
1 2 3 4 5 6 ... 43 44

Inhaltsverzeichnis

Seite 1 - Contents

1Specification ...

Seite 2 - Specifications

10AlignmentInternal System Alignment RoutineThis uses a programmed routine in the transceiver, whichsimplifies many previously complex discrete compon

Seite 3

11NFM S-Meter Full Scale AdjustmentP Connect the RF Signal Generator to the ANT jack, and thenset the output level to +20 dBμV at the 435.100 MHz (wit

Seite 4

1250 MHz bandPress the [BAND] button to switch the alignment band to50 MHz Band.Squelch Threshold AdjustmentP Connect the RF Signal Generator to the A

Seite 5 - Block Diagram

13Alignment144 MHz BandPress the [BAND] button to switch the alignment band to144 MHz Band.RX Tune AdjustmentP Connect the RF Signal Generator to the

Seite 6

14AlignmentLow TX Power AdjustmentP Connect the 50-Ohm Dummy Load and Wattmeter tothe ANT jack.P Rotate the DIAL knob one click clockwise to select th

Seite 7 - Circuit Description

15MAIN UnitCircuit Diagram

Seite 8

16MAIN UnitNote

Seite 9

17MAIN UnitParts Layout (Side A)2SA2029 (F*)(Q1057, 1071, 1073,1092)2SC5374 (NA)(Q1077)2SC5658 (B*)(Q1055, 1078, 1088, 1093)BA C132542SK3541(Q1006, 10

Seite 10 - Alignment

18MAIN UnitParts Layout (Side B)ba c1322SC4915-O (QY)(Q1029, 1030, 1033, 1034,1035, 1036, 1037)2SC5374 (NA)(Q1038, 1048, 1056)2SC5555ZD (ZD-)(Q1002, 1

Seite 11

19Main UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRP.C.B. with Components (W/ SW Unit, VCO Unit) CP8966

Seite 12

2SpecificationsGeneralFrequency Ranges: RX 0.5-1.8 MHz (AM Broadcast)(USA Version) 1.8-30 MHz (SW Band)30-76 MHz (50 MHz HAM)76-108 MHz (FM)108-137 M

Seite 13

20Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitC 1065 CHIP CAP. 56pF 50V CH UMK105CH560JW-F K221782

Seite 14

21Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitC 1139 CHIP CAP. 100pF 50V CH UMK105CH101JW-F K22178

Seite 15 - MAIN Unit

22Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitC 1229 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K221288

Seite 16

23Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitC 1311 CHIP CAP. 15pF 50V CH UMK105CH150JW-F K221782

Seite 17

24Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitD 1025 DIODE 1SV325(TPH3.F) G2070848 1- B b2D 1026 D

Seite 18

25Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitL 1010 M.RFC 0.15uH 2% C1608CB-R15G L1691101 1- B b2

Seite 19 - Main Unit

26Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitQ 1029 TRANSISTOR 2SC4915-O(TE85L.F) G3349158O 1- B

Seite 20

27Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitR 1011 CHIP RES. 470 1/16W 5% RMC1/16S 471JTH J24189

Seite 21

28Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMain UnitR 1083 CHIP RES. 100k 1/16W 5% RMC1/16S 104JTH J2418

Seite 22

29R 1164 CHIP RES. 10k 1/16W 5% RMC1/16S 103JTH J24189037 1- B a5R 1165 CHIP RES. 10k 1/16W 5% RMC1/16S 103JTH J24189037 1- B a4R 1166 CHIP RES. 10k 1

Seite 23

3SpecificationsReceiverCircuit Type: AM, NFM: Double-Conversion SuperheterodyneWFM: Triple-Conversion SuperheterodyneAM Radio/FM Radio: Single-Convers

Seite 24

30R 1254 CHIP RES. 0 1/16W 5% RMC1/16S JPTH J24189070 VER. B2 1-R 1254 CHIP RES. 0 1/16W 5% RMC1/16S JPTH J24189070 VER. C1 1-R 1254 CHIP RES. 0 1/16W

Seite 25

31Filter UnitCircuit Diagram

Seite 26

32BA C12Filter UnitParts Layout (Side A)ba c12Parts Layout (Side B)DTC144EM (26)(Q2004, 2005,2007, 2008)DTC144TEM (96)(Q2006)2SC5658 (B*)(Q2003)LM2904

Seite 27

33Filter UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRP.C.B. with Components CB4006001Printed Circuit Bo

Seite 28

34Filter UnitNote

Seite 29

35SW UnitCircuit Diagram

Seite 30

36SW UnitParts Layout (Side A)BA C1Parts Layout (Side B)ba c12SC5226 (R22)(Q3003)2SC5374 (NA)(Q3001)DTC143ZE (E23)(Q3003)RQA0003DNS(Q3004)

Seite 31 - Filter Unit

37SW UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRP.C.B. with Components CS1944003 DST:USACS1944004 DST:

Seite 32

38SW UnitNote

Seite 33

39VCO UnitCircuit Diagram

Seite 34

4Exploded View & Miscellaneous PartsNon-designated parts are available only as part of adesignated assembly.No.VXSTD P/NU9900220U9900068U0

Seite 35 - Circuit Diagram

40VCO UnitParts Layout (Side A)BA12ba12Parts Layout (Side B)DTC143ZE (E23)(Q4001, 4003, 4007)MT3S36FS (21)(Q4002, 4004, 4005,4006)

Seite 36 - Parts Layout (Side B)

41VCO UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRP.C.B. with Components CB3815001Printed Circuit Board

Seite 37 - Parts List

42VCO UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRL 4011 M.RFC 1uH LK1608 1R0K-T L1690687 1- A B1L 4012

Seite 39 - VCO Unit

44Copyright 2007VERTEX STANDARD CO., LTD.All rights reservedNo portion of this manualmay be reproduced withoutthe permission ofVERTEX STANDARD CO., LT

Seite 40

5Block Diagram

Seite 42

7Circuit DescriptionThe VX-3R consists of a MAIN-UNIT, a FILTER-UNIT, aSW-UNIT, and a VCO-UNIT. The MAIN-UNIT containsthe receiver front end, PLL IC,

Seite 43

8Circuit Description(2) ModulationVoice signal input from either built-in microphoneMC1001 on MAIN-UNIT or external jack J1004 on theMAIN-UNIT is pre-

Seite 44

9AlignmentIntroductionThe VX-3R is carefully aligned at the factory for thespecified performance across the amateur band. Realign-ment should therefor

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