Vertex-standard Yaesu VX-2R User Manual

1©2003 VERTEX STANDARD CO., LTD. EH015M90ATechnical SupplementSpecifications ...

10Circuit DescriptionNote

11AlignmentIntroductionThe VX-2R is carefully aligned at the factory for the spec-ified performance across the amateur band. Realignmentshould therefo

12AlignmentInternal System Alignment RoutineThis process uses a programmed routine in the transceiv-er which simplifies many previously complex discre

13TX Low Power (Low Band Edge) Adjustment (LP)r Press the [V/M] key.r Transmit, and adjust the output power level for 0.1 W(±0.05 W) by rotating the D

14CTCSS Tone (254.1 Hz) Deviation (High Band Edge)Adjustment (254)r Press the [V/M] key.r Transmit, and adjust the deviation for ±0.6 kHz (±0.05kHz) b

15Wide FM Low-Scale S-1 Adjustment (S1)r Press the [V/M] key.r Adjust the generator level to 0 dBµ (1 kHz tone @ ±20kHz deviation), then press the [F/

16AlignmentTX Deviation (High Band Edge) Adjustment (dEV)r Press the [V/M] key.r Inject a 1 kHz audio tone at a level of 50 mV (rms) tothe MIC jack, t

17MAIN UnitCircuit Diagram1.9 V0.8 V1.9 V0.7 V2.2 V0.7 V2.5 V2.3 V1.7 V2.2 V0.7 V0.8 V52 MHz: 1.5 VBC Band: 1.7 V0.8 V52 MHz: 1.5 VBC Band: 1.6 VRX: 2

18MAIN Unit

19MAIN UnitParts Layout (Side A)BA DC E123456782SA1774 (FR)(Q1046, 1050, 1057,1070)2SC4617 (BR)(Q1011, 1019, 1045,1062, 1071, 1075)2SC5227(Q1002, 1012

2SpecificationsGeneralFrequency Ranges: RX 0.5-1.8 MHz (BC Band)(USA Version) 1.8-30 MHz (SW Band)30-76 (59) MHz (50 MHz HAM)76 (59)-108 MHz (FM)108-

20MAIN Unitba dc e12345678Parts Layout (Side B)2SA1774 (FR)(Q1027, 1032)2SC4617 (BR)(Q1040, 1041, 1042)2SC4915 (QY)(Q1017, 1020, 1021,1022, 1023, 1028

21Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitPCB with Components CS1792002 USA A2CS1792003 EXP A1

22Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitC 1073 CHIP CAP. 0.5pF 50V CK UMK105CK0R5CW-F K22178

23Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitC 1149 CHIP CAP. 0.047uF 10V B GRM36B473K10PT K22108

24Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitC 1225 CHIP TA.CAP. 22uF 4V TESVSP0G226M-8R K7806004

25Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitC 1303 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K221288

26Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitD 1036 DIODE 1SS400G T2R G2070934 1- A B7D 1037 DIOD

27Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitL 1015 M.RFC 0.0056uH TFL0510-5N6 L1690808 1- A B6L

28Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitQ 1031 TRANSISTOR DTC144EM T2L G3070309 1- B d7Q 103

29Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitR 1020 CHIP RES. 100 1/16W 5% RMC1/16S 101JTH J24189

3SpecificationsReceiverCircuit Type: AM, NFM: Double-Conversion SuperheterodyneWFM: Triple-Conversion SuperheterodyneIntermediate Frequencies: 1st 2nd

30Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitR 1095 CHIP RES. 470 1/16W 5% RMC1/16S 471JTH J24189

31Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitR 1170 CHIP RES. 4.7k 1/16W 5% RMC1/16S 472JTH J2418

32Parts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRMAIN UnitR 1246 CHIP RES. 330k 1/16W 5% RMC1/16S 334JTH J2418

33Filter UnitCircuit Diagram0.8 V0 V0.6 V1.2 V3.0 V0.6 V0 V1.2 V1.0 V1.3 V1.3 V1.2 V0 V0 VTONE FREQUENCY~ 146.2 Hz: 2.5 V151.4 Hz ~ : 0 VTONE SQL, DCS

34Filter UnitBA C1212ba c2SC4154 (LE)(Q2003, 2006)DTC144EE (LE)(Q2004, 2005, 2007,2008)NJM12902V(Q2001)NJM2904R(Q2002)DA221M (K)(D2002)DAN222M (N)(D20

35Filter UnitREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRParts ListPCB with Components CB2397001Printed Circuit Board

36Filter UnitNote

37Circuit DiagramSW UnitBA C12(Side A)2SC5226 (R22)(Q3001)2SC5374 (NA)(Q3004)DTC143ZE (E23)(Q3003)Dba c12(Side B)dParts Layout2SK3079A (E23)(Q3002)RX:

38Parts ListSW UnitREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRPCB with Components CS1789001Printed Circuit Board AH0

39VCO UnitCircuit DiagramDownloaded byRadioAmateur.EU

4Exploded View & Miscellaneous PartsRA0111400RING NUT‰REF•‚ƒ„…†‡ˆ‰VXSTD P/NU07125302U07180306U07240302U44110002U9900044U9900068U9900153U9900154U99

40VCO UnitParts LayoutDTC143ZE (E23)(Q4001, 4003, 4007)EC3H07B (G)(Q4002, 4004,4005, 4006)12BA C D312ba c d3(Side A)(Side B)

41VCO UnitREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRParts ListPCB with Components CB2376001Printed Circuit Board AH

42VCO UnitL 4011 M.RFC 1uH LK1608 1R0K-T L1690687 1- A B2L 4012 M.RFC 0.33uH LK1608 R33K-T L1690412 1- A B2L 4013 M.RFC 0.033uH HK1608 33NJ-T L1690522

17

18Copyright 2003VERTEX STANDARD CO., LTD.All rights reservedNo portion of this manualmay be reproduced withoutthe permission ofVERTEX STANDARD CO., LT

5Connection DiagramDownloaded byRadioAmateur.EU

6Block DiagramDownloaded byRadioAmateur.EU

7Circuit DescriptionThe VX-2R consists of a MAIN-UNIT, a FILTER-UNIT, aSW-UNIT, and a VCO-UNIT. The MAIN-UNIT containsthe receiver front end, IF circu

8Circuit Descriptionto varactors D1016 and D1017 (both HVC355B) in thevariable frequency band-pass filters. By changing the elec-trostatic capacitance

9(4) 435-MHz-Band TransmissionModulating audio passes through deviation setting D/Aconverter Q1010 (M62364FP) then delivered to the UHFmodulator of th