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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.

Содержание VX-3 E

Страница 1: ...itors 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 15...

Страница 2: ...ve Ground EXT DC Jack w Charging Current Consumption 120 mA Receive 60 mA Standby Saver Off 30 mA Standby Saver On Save Ratio 1 2 50 mA Radio Band Receive 100 μA Auto Power Off 1 3 A 1 5 W Tx 144 MHz 3 7 V DC 1 6 A 3 W Tx 144 MHz 6 V DC 1 2 A 1 W Tx 430 MHz 3 7 V DC 1 8 A 2 W Tx 430 MHz 6 V DC Operating Temperature 20 C to 60 C Case Size W x H x D 1 9 x 3 2 x 0 9 47 x 81 x 23 mm W O knob antenna W...

Страница 3: ...2 μV for 12 dB SINAD 137 140 MHz NFM 0 16 μV for 12 dB SINAD 140 150 MHz NFM 0 2 μV for 12 dB SINAD 150 174 MHz NFM 1 μV TYP for 12 dB SINAD 174 225 MHz NFM 0 5 μV for 12 dB SINAD 300 350 MHz NFM 0 2 μV for 12 dB SINAD 350 400 MHz NFM 0 18 μV for 12 dB SINAD 400 470 MHz NFM 1 5 μV for 12 dB SINAD 470 540 MHz WFM 3 μV TYP for 12 dB SINAD 540 800 MHz WFM 1 5 μV TYP for 12 dB SINAD 800 999 MHz NFM US...

Страница 4: ...KER 0 5W 8 OHM RA095220A CASE ASSY RA0951900 NAME PLATE YAESU RA094660A RUBBER KNOB PTT RA095230A KEY PAD RA0948400 RUBBER RING RA0922500 LIGHT GUIDE RA0023500 RING NUT SMA RA094680A MIC CAP RA0111400 RING NUT RA0947300 ENCODER KNOB ASSY RA0922600 FRAME RA0922700 INTER CONNECTOR RA0511800 SPONGE RUBBER BOAD RA0963700 BATTERY COVER ASSY CP8973001 CHASSIS ASSY RA0952400 LCD SHEET RA0503600 LATCH NAI...

Страница 5: ...5 Block Diagram ...

Страница 6: ...6 Note ...

Страница 7: ...from the VCO UNIT is amplified by Q1056 2SC5374 and ap plied through diode T R switch D1039 DAM222M to mixer Q1019 2SC5555 as the first local signal The 47 25 MHz intermediate frequency product of the mixer is delivered to the IF circuit The TUNE voltage from the CPU is amplified by DC am plifier Q1025 NJU7007F3 and applied to varactors D1005 D1010 D1023 and D1024 all HVC358B in the variable frequ...

Страница 8: ...nal from the VCO is amplified by Q3001 2SC5374 and RF power amplifier Q3003 2SC5226 up to 0 3 or 2 W depending on the power source The RF output passes through TX diode switch D1050 RLS135 RF output is passed by T R switch and low pass filter to suppress har monics and spurious products before output to the an tenna at the antenna terminal PLL Frequency Synthesizer PLL IC Q1041 MB15A01PFV1 on the ...

Страница 9: ...alignment resulting from use of improper test equipment is not covered under the war ranty policy While most steps do not require all of the equipment listed the interactions of some adjustments may require that additional adjustments be performed Do not attempt to perform only a single step unless it is clearly isolated electrically from all other steps Have all test equipment ready before beginn...

Страница 10: ...o the next character 8 Repeat the previous step to complete the alignment password AH028M 9 Press the TXPO key momentarily then press the PTT switch to save the settings and exit to normal opera tion PLL Reference Frequency Adjustment REF P Rotate the DIAL knob to select the alignment item rEF P Press the V M key P Press the PTT switch then rotate the DIAL knob so that the Frequency Counter readin...

Страница 11: ...wise to select the align ment item HP P Press the V M key P Press the PTT switch then rotate the DIAL knob so that the Wattmeter reading is 1 0 W 0 1 W P Press the V M key again Low TX Power Adjustment P Connect the 50 Ohm Dummy Load and Wattmeter to the ANT jack P Rotate the DIAL knob one click clockwise to select the align ment item LP P Press the V M key P Press the PTT switch then rotate the D...

Страница 12: ...one click clockwise to select the alignment item S1 P Press the V M key P Press the F W key twice and then press the V M key again NFM S Meter Full Scale Adjustment P Connect the RF Signal Generator to the ANT jack and then set the output level to 20 dBμV at the 52 100 MHz with 1 kHz tone 3 5 kHz deviation P Rotate the DIAL knob one click clockwise to select the alignment item S9 P Press the V M k...

Страница 13: ...W key twice and then press the V M key again NFM S Meter Full Scale Adjustment P Connect the RF Signal Generator to the ANT jack and then set the output level to 20 dBμV at the 145 100 MHz with 1 kHz tone 3 5 kHz deviation P Rotate the DIAL knob one click clockwise to select the alignment item S9 P Press the V M key P Press the F W key twice and then press the V M key again WFM S Meter S 1 Adjustm...

Страница 14: ... that the Deviation meter reading is 4 2 kHz 0 1 kHz P Press the V M key again CTCSS Tone Deviation Adjustment P Connect the 50 Ohm Dummy Load Wattmeter and Deviation Meter to the ANT jack P Rotate the DIAL knob one click clockwise to select the alignment item 100 P Press the V M key P Press the PTT switch then rotate the DIAL knob so that the Deviation meter reading is 0 65 kHz 0 05 kHz P Press t...

Страница 15: ...15 MAIN Unit Circuit Diagram ...

Страница 16: ...16 MAIN Unit Note ...

Страница 17: ...TM 03 Q1039 1042 1043 DTC144EM 26 Q1004 1040 1045 1050 1059 1061 1085 1089 1102 1104 1105 EMB10 B10 Q1044 1072 EMB3 B3 Q1058 1060 1074 HD64F2266TF13V Q1095 M62364FP Q1017 NJM2151AV Q1005 NJM3403AV Q1010 NJU7007F3 B3 Q1025 RN4985 Q1069 TAR5S30 Q1086 EMD2 D2 Q1099 EMG2 G2 Q1009 1070 1075 LC75834W Q1100 MT3S36FS 21 Q1001 1012 1018 XC61GN3002HR Q1084 1087 SSM6J25FE PH Q1103 NJU7747F4 Q1083 LV24100LP Q...

Страница 18: ...2 1003 1013 1015 1019 1020 1021 2SC5658 B Q1065 5 4 EMG2 G2 Q1031 DTC144EM 26 Q1049 1067 1098 MM1438BWLE Q1097 NJM2552V Q1047 2SJ364 4M Q1068 CPH6102 AB Q1096 MB15A02PFV1 Q1041 MCH6305 JE Q1090 XC6371A650PR AF0 Q1091 1SS385 09 D1055 DAN222M N D1034 1036 1037 1038 1039 1040 1041 1SS362 C3 D1002 1003 DA221M K D1033 1042 1043 DAP222M P D1030 ...

Страница 19: ... CAP 7pF 50V CH UMK105CH070DW F K22178255 1 A A1 C 1025 CHIP CAP 100pF 50V CH UMK105CH101JW F K22178282 1 A B3 C 1026 CHIP CAP 100pF 50V CH UMK105CH101JW F K22178282 1 B c3 C 1028 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B c3 C 1029 CHIP CAP 4pF 50V CH UMK105CH040CW F K22178252 1 B c3 C 1030 CHIP CAP 220pF 25V CH GRM36CH221J25PT K22148203 1 B c3 C 1031 CHIP CAP 68pF 50V CH UMK105CH680JW F...

Страница 20: ... CHIP CAP 56pF 50V CH UMK105CH560JW F K22178276 1 B b3 C 1103 CHIP CAP 3pF 50V CJ UMK105CJ030CW F K22178251 1 B b3 C 1104 CHIP CAP 3pF 50V CJ UMK105CJ030CW F K22178251 1 B b3 C 1105 CHIP CAP 5pF 50V CH UMK105CH050CW F K22178253 1 A B3 C 1106 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B b3 C 1107 CHIP CAP 8pF 50V CH UMK105CH080DW F K22178256 1 B b2 C 1108 CHIP CAP 9pF 50V CH UMK105CH090DW F ...

Страница 21: ...100uF 4V TEESVA0G107M8R K78060051 1 A C3 C 1179 CHIP CAP 0 01uF 16V B GRM36B103K16PT K22128804 1 B a4 C 1180 CHIP CAP 0 047uF 10V B GRM155B11A473KA01D K22108801 1 B a4 C 1181 CHIP CAP 470pF 50V B UMK105B471KW F K22178825 1 B b4 C 1182 CHIP CAP 0 01uF 16V B GRM36B103K16PT K22128804 1 B a4 C 1183 CHIP CAP 4 7uF 6 3V B JMK107BJ475MA T K22084803 1 B a4 C 1184 CHIP CAP 7pF 50V CH UMK105CH070DW F K22178...

Страница 22: ...802 1 A B4 C 1264 CHIP CAP 18pF 50V CH UMK105CH180JW F K22178264 1 B c2 C 1266 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B c2 C 1267 CHIP CAP 56pF 50V CH GRM1552C1H560JD01D K22178230 1 B c2 C 1267 CHIP CAP 51pF 50V CH GRM1552C1H510JZ01D K22178229 2 B c2 C 1268 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B c3 C 1269 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B c2 C 1270 CHIP CA...

Страница 23: ... K22088803 1 A C1 C 1346 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 A C3 C 1347 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B c2 C 1348 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 A A1 C 1349 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 A A1 C 1350 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 A C1 C 1351 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 A B...

Страница 24: ...A A4 D 1071 DIODE 1SS400G T2R G2070934 1 A A3 D 1072 DIODE 1SS400G T2R G2070934 1 A A3 D 1073 DIODE RB521S 30 TE61 G2070642 1 A B1 D 1074 DIODE 1SS400G T2R G2070934 1 B c3 D 1075 DIODE JDP2S04E TAPE G2071180 1 A A4 D 1076 SURGE ABSORBER EZAEG3A50AV Q9000867 1 A A1 D 1076 SURGE ABSORBER EZAEG2A50AX Q9000868 2 A A1 D 1077 DIODE 1SS400 TE61 G2070634 1 D 1077 DIODE 1SS400G T2R G2070934 4 DS1001 LCD 91...

Страница 25: ...229 1 A C2 L 1047 COIL E2 0 28 1 0 4 5T R L0022395 1 B c2 L 1049 COIL E2 0 4 1 3 2T L L0022580 1 B c2 L 1050 M RFC 4 7uH LK1608 4R7K T L1690688 1 B c2 L 1051 COIL E2 0 28 1 0 4 5T R L0022395 1 B c2 L 1052 M RFC 4 7uH LK1608 4R7K T L1690688 1 B c2 L 1053 COIL E2 0 25 1 9 5 5T R L0022610 1 B c2 L 1054 COIL E2 0 35 1 4 3 5T L B L0022729 1 B c2 L 1055 COIL E2 0 35 1 4 3 5T L B L0022729 1 B c1 L 1056 C...

Страница 26: ...8 1 A A4 Q 1072 TRANSISTOR EMB10 T2R G3070302 1 A B4 Q 1073 TRANSISTOR 2SA2029 T2L Q R G3120298 1 A A4 Q 1074 TRANSISTOR EMB3 T2R G3070303 1 A B4 Q 1075 TRANSISTOR EMG2 T2R G3070304 1 A A4 Q 1077 TRANSISTOR 2SC5374 TL G3353748 1 A C2 Q 1078 TRANSISTOR 2SC5658 T2L Q R G3356588 1 A C2 Q 1082 FET 2SK3541 T2L G3835417 1 A B4 Q 1083 IC NJU7747F4 03 TE1 G1094425 1 A B1 Q 1084 IC XC61GN3002HR G1094470 1 ...

Страница 27: ...IP RES 47k 1 16W 5 RMC1 16S 473JTH J24189045 1 B c3 R 1046 CHIP RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 A B3 R 1047 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 B b3 R 1048 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B b3 R 1049 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B b2 R 1050 CHIP RES 1 5k 1 16W 5 RMC1 16S 152JTH J24189027 1 B c3 R 1051 CHIP RES 47k 1 16W 5 RMC1 16S 473JTH ...

Страница 28: ... A C4 R 1116 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A B4 R 1117 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A C4 R 1118 CHIP RES 470 1 16W 5 RMC1 16S 471JTH J24189021 1 B a3 R 1119 CHIP RES 470 1 16W 5 RMC1 16S 471JTH J24189021 1 B a3 R 1120 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B a3 R 1121 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 A C4 R 1123 CHIP RES 10k 1 16W 5 ...

Страница 29: ...04JTH J24189049 1 B a3 R 1217 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B a3 R 1219 CHIP RES 330k 1 16W 5 RMC1 16S 334JTH J24189055 1 B b4 R 1220 CHIP RES 15k 1 16W 5 RMC1 16S 153JTH J24189039 1 B b4 R 1221 CHIP RES 180k 1 16W 5 RMC1 16S 184JTH J24189052 1 B a3 R 1222 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B b4 R 1223 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B b4 R 1224 ...

Страница 30: ...221JTH J24189017 1 A A5 R 1276 CHIP RES 47 1 16W 5 RMC1 16S 470JTH J24189009 1 B b4 R 1277 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 A C1 R 1278 CHIP RES 18k 1 16W 5 RMC1 16S 183JTH J24189040 1 A B5 R 1279 CHIP RES 18k 1 16W 5 RMC1 16S 183JTH J24189040 1 A B5 R 1280 CHIP RES 680 1 16W 5 RMC1 16S 681JTH J24189023 1 B c4 R 1281 CHIP RES 680 1 16W 5 RMC1 16S 681JTH J24189023 1 B c4 R 1282 CHI...

Страница 31: ...31 Filter Unit Circuit Diagram ...

Страница 32: ... B A C 1 2 Filter Unit Parts Layout Side A b a c 1 2 Parts Layout Side B DTC144EM 26 Q2004 2005 2007 2008 DTC144TEM 96 Q2006 2SC5658 B Q2003 LM2904PWR Q2002 LM2902PWR Q2001 DAN222M N D2001 DA221M K D2002 ...

Страница 33: ...L Q R G3356588 1 A A2 Q 2004 TRANSISTOR DTC144EM T2L G3070309 1 A A2 Q 2005 TRANSISTOR DTC144EM T2L G3070309 1 A A1 Q 2006 TRANSISTOR DTC144TE TL G3070280 1 A A1 Q 2007 TRANSISTOR DTC144EM T2L G3070309 1 A A1 Q 2008 TRANSISTOR DTC144EM T2L G3070309 1 A A1 R 2001 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A A1 R 2002 CHIP RES 680 1 16W 5 RMC1 16S 681JTH J24189023 1 A B1 R 2003 CHIP RES 560k 1...

Страница 34: ...34 Filter Unit Note ...

Страница 35: ...35 SW Unit Circuit Diagram ...

Страница 36: ...36 SW Unit Parts Layout Side A B A C 1 Parts Layout Side B b a c 1 2SC5226 R22 Q3003 2SC5374 NA Q3001 DTC143ZE E23 Q3003 RQA0003DNS Q3004 ...

Страница 37: ... b1 D 3004 SURGE ABSORBER EZAEG2A50AX Q9000868 1 3 D 3005 SURGE ABSORBER EZAEG2A50AX Q9000868 1 3 D 3006 SURGE ABSORBER TVSF0603 Q9000847 1 D 3007 SURGE ABSORBER TVSF0603 Q9000847 1 D 3008 DIODE UDZS TE 17 8 2B G2070890 1 D 3008 DIODE EDZ TE 61 8 2B G2071188 4 L 3001 M RFC 0 033uH TFL0510 33N L1690817 1 B a1 L 3002 M RFC 0 033uH ELJ RE33NJF2 L1690720 1 B a1 L 3003 CHIP COIL 0 012uH 2 LQW18AN12NG00...

Страница 38: ...38 SW Unit Note ...

Страница 39: ...39 VCO Unit Circuit Diagram ...

Страница 40: ...40 VCO Unit Parts Layout Side A B A 1 2 b a 1 2 Parts Layout Side B DTC143ZE E23 Q4001 4003 4007 MT3S36FS 21 Q4002 4004 4005 4006 ...

Страница 41: ...1 C 4033 CHIP CAP 5pF 50V CH UMK105CH050CW F K22178253 1 A A1 C 4034 CHIP CAP 0 01uF 16V B GRM36B103K16PT K22128804 1 A A1 C 4035 CHIP CAP 0 01uF 16V B GRM36B103K16PT K22128804 1 A B1 C 4036 CHIP CAP 47pF 50V CH UMK105CH470JW F K22178274 1 A B1 C 4037 CHIP CAP 10pF 50V CH UMK105CH100DW F K22178258 1 A A1 C 4038 CHIP CAP 15pF 50V CH UMK105CH150JW F K22178262 1 A B1 C 4039 CHIP CAP 0 001uF 50V B UMK...

Страница 42: ... 1 16W 5 RMC1 16S 470JTH J24189009 1 A A1 R 4008 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A A1 R 4009 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 A A1 R 4010 CHIP RES 470 1 16W 5 RMC1 16S 471JTH J24189021 1 A A1 R 4011 CHIP RES 2 2k 1 16W 5 RMC1 16S 222JTH J24189029 1 A A1 R 4012 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 A A1 R 4013 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J241890...

Страница 43: ......

Страница 44: ...44 Copyright 2007 VERTEX STANDARD CO LTD All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO LTD ...

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