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Introduction

This manual provides technical information necessary for servicing the VX-160EU and VX-180EU FM Transceiver.
Servicing this equipment requires expertise in handling 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 are provided for each double-sided circuit board in the transceiver. Each side of is referred

to by the type of the majority of components installed on that side (“leaded” or “chip-only”). 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 technical 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.

©2004 VERTEX STANDARD CO., LTD.

Service Manual

VX-160EU/-180EU

UHF FM Transceiver

Operating Manual Reprint ............................ 2
Cloning .............................................................. 6
Specifications ................................................... 7
Exploded View & Miscellaneous Parts ...... 8

Contents

Block Diagram ................................................. 9

Circuit  Description ................................11
Alignment .................................................13
Board Unit (Schematics, Layouts & Parts)

     MAIN Unit ................................................................

17

VX-160EU

VX-180EU

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

EC037U90B

All manuals and user guides at all-guides.com

all-guides.com

Summary of Contents for VX-160EU

Page 1: ...o 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 2004 VERTEX STANDARD CO LTD Service Manual VX 160EU 180EU UHF FM Transceiver Operating Manual Reprint 2 Cloning 6 Specifications 7 Exploded View Miscellaneo...

Page 2: ... becomes lower When the battery voltage becomes to low substitute a freshly charged battery and recharge the depleted pack The TX BUSY indicator on the top of the radio will blink red on the VX 180 the icon will appear on the LCD when the battery voltage is low U Avoid recharging Ni Cd batteries often with little use between charges as this can degrade the charge capac ity We recommend that you ca...

Page 3: ...ker Microphone into the MIC SP jack secure the plug us ing the screws supplied with the Speaker Microphone Hold the speaker grille up next to your ear while re ceiving To transmit press the PTT switch on the Speaker Microphone just as you would on the main transceiver s body Note Save the original plastic cap and its mounting screws They should be re installed when not us ing the Speaker Microphon...

Page 4: ...nd hold the assigned Soft key Operation will revert to the channel to which the CH knob is set Follow Me Scan Follow Me Scan feature checks a User assigned Prior ity Channel regularly as you scan the other channels Thus if only Channels 1 3 and 5 of the 8 available channels are designated for Scanning the user may nonetheless assign Channel as the User assigned Priority Channel via the Follow Me f...

Page 5: ...A 25A Alkaline Battery Case NC 77C 230 240 VAC Overnight Desktop Charger NC 77U 230 VAC Overnight Desktop Charger VAC 800 Desktop Rapid Charger VAC 6800 6 unit Multi Charger MH 45B4B Speaker Microphone MH 37A4B Earpiece Microphone VC 25 VOX Headset VCM 1 Mobile Mounting Bracket for VAC 800 ATU 6A UHF Antenna 410 430 MHz ATU 6C UHF Antenna 440 470 MHz CT 42 PC Programming Cable CT 27 Radio to Radio...

Page 6: ...tination transceiver press the MONITOR switch LOADING LOADING LOADING LOADING LOADING will appear on the LCD for VX 180E for VX 160E the TX BUSY indicator on the top of the radio will glow Green 6 Press the PTT switch on the source transceiver SEND SEND SEND SEND SEND ING ING ING ING ING will appear on the Source transceiver for VX 180E for VX 160E the TX BUSY indicator on the top of the radio wil...

Page 7: ...ons Measurements made per ETS 300 086 Sensitivity ETS 20 dB SINAD 0 20 µV Adjacent channel selectivity 70 dB 25 kHz 60 dB 12 5 kHz Intermodulation 65 dB Spurious and Image Rejection 65 dB Hum Noise 45 dB Audio output 500 mW 4 Ohms 10 THD TRANSMITTER Specifications Measurements made per ETS 300 086 Power output 5 0 1 0 W Modulation 16K0F3E 11K0F3E Conducted Spurious Emissions 73 dB Below Carrier FM...

Page 8: ...02 TAPTITE SCREW M2X4NI 2 VX 180E U20206007 BINDING HEAD SCREW M2 6X6B 2 U24110002 TAPTITE SCREW M2X10NI 2 U02206007 SEMS SCREW SM2 6X6B 2 U00103002 PAN HEAD SCREW M2X3NI 1 RA0210600 RUBBER PACKING x 2 pcs RA0438200 VX 180E LCD HOLDER CP7355001 BELT CLIP ASSY RA033490A VX 180E REFLECTOR SHEET CAUTION The mic element must be desoldered and removed from the PCB on order to re install its protective ...

Page 9: ...Block Diagram 9 All manuals and user guides at all guides com ...

Page 10: ...Block Diagram 10 Note All manuals and user guides at all guides com ...

Page 11: ...ch circuitry consists of a noise amplifier and band pass filter within Q1048 TA31136FN and noise detector D1036 1SS400 TE 61 When no carrier is received noise at the output of the detector stage in Q1048 is amplified and band pass fil tered by the noise amplifier section of Q1048 and the net work between pins 7 and 8 and then is rectified by D1036 The resulting DC squelch control voltage is passed...

Page 12: ...ed by 64 or 65 according to a control signal from the data latch section of Q1050 before being sent to the programmable divider section of Q1050 The data latch section of Q1050 also receives serial di viding data from the microprocessor Q1011 which causes the pre divided VCO signal to be further divided in the programmable divider section depending upon the desired receive frequency so as to produ...

Page 13: ...ignment resulting from use of improper test equipment is not covered under the warranty policy While most steps do not require all of the equipment listed the interactions of some adjustments may require that more complex adjustments be performed af terwards Do not attempt to perform only a single step unless it is clearly isolated electrically from all other steps Have all test equipment ready be...

Page 14: ...able Transceiver Channel Tone Frequency Hz DCS code CTCSS DCS Low Band Edge Channel 1 Band Center 67 0 627 Channel 2 Band Center 254 1 627 Channel 3 High Band Edge Channel 4 The alignment tool outline Installation of the Alignment tool The alignment mode is a software based protocol accessed by an Alignment Mode command from the computer while switching the transceiver on It is oper ated by the al...

Page 15: ...y U Key the transmitter and confirm that the voltage is more than 0 9 V PLL Reference Frequency U Set the transceiver to CH 2 via the CH box located on the upper left corner on the Alignment window previously U To adjustment double click the left mouse button on the RF Frequency RF Frequency RF Frequency RF Frequency RF Frequency box to open the pop up window then move the slide bar to adjust the ...

Page 16: ...CS Ref Modulation DCS Ref Modulation DCS Ref Modulation box to open the pop up window then move the slide bar to adjust the 0 75 kHz 0 1 kHz for 25 kHz steps deviation U Press the OK box to lock in the new data Sensitivity U Set the transceiver to CH 4 via the CH box located on the upper left corner on the Alignment window previously U Tune the RF signal generator to the same frequency as the tran...

Page 17: ...0V 4 44V 4 45V 7 50V 6 79V 7 5V 7 45V 6 91V 6 80V 5 10V 5 00V 5 00V 5 00V 5 00V 0V 0V 5 00V 5 00V 0V 0V 5 09V 5 00V 5 00V 4 44V 4 45V 2 32V 2 28V 2 32V 2 32V 2 33V 2 29V 2 32V 2 32V 2 29V 2 26V 5 0V 0V 0V 5 00V 3 77V 0 0V 4 98V 5 00V 5 00V 4 97V 5 00V 4 29V 4 32V 5 00V 5 00V 0V 2 32V 2 32V 0V 1 55V 3 68V 0 77V 2 91V 0 76V 1 17V 2 97V 3 91V 4 32V 0V 2 87V 4 20V 3 47V 2 37V 0 08V 2 11V 1 84V 2 36V 1...

Page 18: ...18 Note MAIN Unit Lot 1 4 All manuals and user guides at all guides com ...

Page 19: ...F D1021 1022 RT1N441U N3 Q1052 2SC4154E LE Q1022 1028 1046 1053 2SA1602A MF Q1054 1056 2SK2035 KP Q1007 NJM2902V Q1017 1030 CPH6102 AB Q1047 DTC124TE 05 Q1032 IMZ2 Z2 Q1003 LC75834W Q1033 FMW1 W1 Q1002 NJM2070M Q1055 NJM12903R Q1045 MAIN Unit Lot 1 4 All manuals and user guides at all guides com ...

Page 20: ...M62364FP Q1004 2SC3357 T2 Q1014 MB15A02PFV1 Q1050 RT1P441U P3 Q1010 1015 2SA1602A MF Q1031 1051 S 29430AFE Q1008 CPH6102 AB Q1016 1023 2SK2974 Q1006 DTB123EK F12 Q1019 FMW1 W1 Q1018 1024 3SK320 U7 Q1036 S 80835CNMC Q1034 TA31136FN Q1048 M37516F8HP Q1011 2SK2973 K1 Q1009 2SK508 K52 Q1037 DTC114EU 24 Q1044 DTA114EU 14 Q1049 DAN235E M D1016 MC2850 A7 D1009 1028 1034 1035 MAIN Unit Lot 1 4 All manuals...

Page 21: ...21 MAIN Unit Lot 5 Circuit Diagram All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 22: ...22 MAIN Unit Lot 5 Note All manuals and user guides at all guides com ...

Page 23: ... TR8 D1018 FA1101F D1021 1022 RT1N441U N3 Q1052 2SC4154E LE Q1022 1028 1046 1053 2SA1602A MF Q1054 1056 2SK2035 KP Q1007 NJM2902V Q1017 1030 CPH6102 AB Q1047 DTC124TE 05 Q1032 IMZ2 Z2 Q1003 LC75834W Q1033 FMW1 W1 Q1002 NJM2070M Q1055 NJM12903R Q1045 All manuals and user guides at all guides com ...

Page 24: ...57 T2 Q1014 MB15A02PFV1 Q1050 RT1P441U P3 Q1010 1015 2SA1602A MF Q1031 1051 S 29430AFE 16 CH S 29530ADFJA 32 CH Q1008 CPH6102 AB Q1016 1023 2SK2974 Lot 1 19 RD07MVS1 Lot 20 Q1006 DTB123EK F12 Q1019 FMW1 W1 Q1018 1024 3SK320 U7 Q1036 S 80835CNMC Q1034 TA31136FN Q1048 M37516F8HP Q1011 2SK2973 K1 Lot 1 19 RD01MUS1 Lot 20 Q1009 2SK508 K52 Q1037 DTC114EU 24 Q1044 DTA114EU 14 Q1049 DAN235E M D1016 MC285...

Page 25: ... C 1018 CHIP CAP 4pF 50V CH UMK105CH040CW F K22178252 VERSION CS1 5 B b1 C 1018 CHIP CAP 4pF 50V CH UMK105CH040CW F K22178252 VERSION D 33 B b1 C 1019 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 A E1 C 1021 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B a1 C 1022 CHIP CAP 4pF 50V CH UMK105CH040CW F K22178252 VERSION B 37 B b1 C 1022 CHIP CAP 2pF 50V CK UMK105CK020CW F K22178250 VERSION ...

Page 26: ...CHIP CAP 470pF 50V B UMK105B471KW F K22178825 1 A A1 C 1062 CHIP CAP 0 022uF 16V B EMK105B223KW F K22128813 1 A B1 C 1063 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 A A1 C 1064 CHIP CAP 4pF 50V CH UMK105CH040CW F K22178252 1 B a2 C 1066 CHIP CAP 10pF 50V CH UMK105CH100DW F K22178258 1 36 A D1 C 1066 CHIP CAP 10pF 50V CH UMK105CH100DW F K22178258 VERSION AS1 37 A D1 C 1066 CHIP CAP 10pF 50V ...

Page 27: ...CH UMK105CH070DW F K22178255 1 4 B b2 C 1118 CHIP CAP 8pF 50V CH UMK105CH080DW F K22178256 VERSION AS1 5 B b2 C 1118 CHIP CAP 8pF 50V CH UMK105CH080DW F K22178256 VERSION B 37 B b2 C 1118 CHIP CAP 7pF 50V CH UMK105CH070DW F K22178255 VERSION CS1 5 B b2 C 1118 CHIP CAP 7pF 50V CH UMK105CH070DW F K22178255 VERSION D 33 B b2 C 1120 CHIP CAP 0 1uF 10V BJ LMK105BJ104KV F K22108806 1 B d3 C 1121 CHIP CA...

Page 28: ...ON B 37 B c1 C 1162 CHIP CAP 2pF 50V CK UMK105CK020CW F K22178250 VERSION CS1 33 B c1 C 1163 CHIP CAP 0 022uF 16V B EMK105B223KW F K22128813 1 B e2 C 1165 CHIP CAP 0 0047uF 25V B TMK105B472KW F K22148831 1 A A3 C 1166 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 B f2 C 1167 CHIP TA CAP 4 7uF 16V TEMSVA1C475M 8R K78120031 1 B f2 C 1169 CHIP TA CAP 0 1uF 35V TESVA1V104M1 8R K78160025 1 B d2 C 1...

Page 29: ...022uF 50V B UMK105B222KW F K22178833 1 A A2 C 1231 CHIP CAP 0 0022uF 50V B GRP155B11H222JA01E K22178837 5 A A2 C 1234 CHIP CAP 0 1uF 10V BJ LMK105BJ104KV F K22108806 1 B e1 C 1235 CHIP CAP 0 1uF 10V BJ LMK105BJ104KV F K22108806 1 A C1 C 1236 CHIP TA CAP 4 7uF 16V TEMSVA1C475M 8R K78120031 1 A C1 C 1238 CHIP CAP 220pF 25V CH TMK105CH221JW F K22148246 1 A D2 C 1240 CHIP CAP 100pF 50V CH UMK105CH101J...

Page 30: ...DIODE HVC350B TRF G2070596 1 B b2 D 1028 DIODE MC2850 T11 1 G2070704 1 B c2 D 1029 DIODE HVC350B TRF G2070596 1 B c1 D 1030 DIODE HVC350B TRF G2070596 1 B b1 D 1031 DIODE HVC350B TRF G2070596 1 B d2 D 1033 DIODE MC2850 T11 1 G2070704 1 A A2 D 1034 DIODE MC2850 T11 1 G2070704 1 B c3 D 1035 DIODE MC2850 T11 1 G2070704 1 B c3 D 1036 DIODE 1SS400 TE61 G2070634 1 B d3 DS1001 LCD HT 3633 TFZWH G6090139 ...

Page 31: ...8 M RFC 0 082uH HK1608 82NJ T L1690527 1 B c2 L 1029 COIL 0 039uH AS030721 39NK L0022587 1 4 B b2 L 1029 COIL 0 047uH AS030821 47NK L0022588 VERSION AS1 5 B b2 L 1029 COIL 0 047uH AS030821 47NK L0022588 VERSION B 37 B b2 L 1029 COIL 0 039uH AS030721 39NK L0022587 VERSION CS1 5 B b2 L 1029 COIL 0 039uH AS030721 39NK L0022587 VERSION D 33 B b2 L 1030 M RFC 0 082uH HK1608 82NJ T L1690527 1 B b2 L 103...

Page 32: ... Q 1052 TRANSISTOR RT1N441U T11 1 G3070247 1 A A2 Q 1053 TRANSISTOR 2SC4154 T11 1E G3341548E 1 A A3 Q 1054 TRANSISTOR 2SA1602A T11 1F G3116028F 1 A A2 Q 1055 IC NJM2070M TE2 G1092944 1 A E2 Q 1056 TRANSISTOR 2SA1602A T11 1F G3116028F 1 A C1 Q 1057 TRANSISTOR RT1N441U T11 1 G3070247 1 B d2 Q 1063 IC TC4W66FU TE12L G1091676 1 B d2 Q 1064 TRANSISTOR 2SC4154 T11 1E G3341548E 1 B e1 R 1001 CHIP RES 33k...

Page 33: ...MC1 16S 101JTH J24189013 1 4 B c1 R 1062 CHIP RES 47 1 16W 5 RMC1 16S 470JTH J24189009 VERSION AS1 5 B c1 R 1062 CHIP RES 47 1 16W 5 RMC1 16S 470JTH J24189009 VERSION B 37 B c1 R 1062 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 VERSION CS1 5 B c1 R 1062 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 VERSION D 33 B c1 R 1063 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B c1 R 1064 CHIP RES 3...

Page 34: ...JTH J24189031 1 B e3 R 1121 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B e3 R 1123 CHIP RES 3 3k 1 16W 5 RMC1 16S 332JTH J24189031 1 B e3 R 1124 CHIP RES 2 2k 1 16W 5 RMC1 16S 222JTH J24189029 1 B e3 R 1125 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B a2 R 1127 CHIP RES 150 1 16W 5 RMC1 16S 151JTH J24189015 1 B c2 R 1128 CHIP RES 27k 1 16W 5 RMC1 16S 273JTH J24189042 1 B c2 R 1129 CHI...

Page 35: ...1 16W 5 RMC1 16S JPTH J24189070 1 B d2 R 1189 CHIP RES 47k 1 16W 5 RMC1 16S 473JTH J24189045 1 B d1 R 1190 CHIP RES 22k 1 16W 5 RMC1 16S 223JTH J24189041 1 B d1 R 1191 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B d2 R 1192 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B d1 R 1193 CHIP RES 180k 1 16W 5 RMC1 16S 184JTH J24189052 1 A A2 R 1194 CHIP RES 56k 1 16W 5 RMC1 16S 563JTH J24189046 1 ...

Page 36: ...RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 B c2 R 1257 CHIP RES 330k 1 16W 5 RMC1 16S 334JTH J24189055 1 B e2 R 1258 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 B d1 R 1259 CHIP RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 B e2 R 1260 CHIP RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 A E1 R 1261 CHIP RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 B e3 R 1263 CHIP RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 B d3 R 12...

Page 37: ...ght 2004 VERTEX STANDARD CO LTD All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO LTD E C 0 3 7 U 9 0 B All manuals and user guides at all guides com ...

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