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Vertex Standard VX-520U Service Manual Download Page 22

22

CNTL Unit

Side A

Side B

Parts Layout

DA227 (N20)
(D1003)

DA204U (K)
(D1004, 1006)

DAN202U (N)
(D1001, 1002, 1005)

DTDG23YP (E02)
(Q1004)

DTA143EU (13)
(Q1009)

BR93LC66RF
BR93L66RF (Lot. 16~)
(Q1002)
NJM2904V
(Q1005, 1008)

2SA1586Y (SY)
(Q1015)

2SC4116GR (LG)
(Q1018)

RN5VL45AA (D5)
(Q1012)

TA75S393F (TA)
(Q1006)

MX165CLH
(Q1001)

M38067ECA
M38067MC (Lot. 8~)
(Q1017)

TC4W53FU
(Q1014)
TC4W66FU
(Q1010)

2SK160 (K6)
(Q1011)

FMG2 (G2)
(Q1016)

FMG5 (G5)
(Q1003)

FMW1 (W1)
(Q1013)

DTC144EU (26)
(Q1007, 1021)

UMG1 (G1)
(Q1020)

Summary of Contents for VX-520U

Page 1: ...ansceiver will provide many years of reli able communications 2003 VERTEX STANDARD CO LTD Service Manual UHF Hand Held Portable Land Mobile Transceiver VX 520U Contents Operating Manual Reprint 2 Specifications 8 Exploded View Miscellaneous Parts 9 Block Diagram 11 Circuit Description 13 Alignment 15 Interconnection Diagram 19 Board Unit Schematics Layouts Parts CNTL Unit 21 LCD Unit 29 VR PTT Uni...

Page 2: ...ailable channels in the VX 520 can be orga nized into 2 Groups with up to 16 channels in each Tog gle this switch to select a group A or B for operation 5 BUSY TX Indicator This lamp blinks green when a signal is being received or the squelch is opened by pressing the MON RES but ton and red when transmitting To avoid interference do not transmit if the lamp is glowing green When the battery almos...

Page 3: ...bled to prevent ra dio settings from being disturbed Operating Manual Reprint 4 Battery Release button Slide this button in the direction of the arrow upward for battery removal 5 EAR and MIC Jacks These jacks primarily intended for use with the op tional MH 45E2B External Speaker Microphone An exter nal earphone can be used in the larger jack in which case the internal speaker will be disabled Wh...

Page 4: ...ter the installation of certain inter nal optional units In this way the radio s operation can be simplified and customized specifically for the user according to network requirements If pressing a button on your radio does not result in the same function described in this manual or if you are un certain of the functions your particular radio is con figured with contact your dealer See PRE PRO GRA...

Page 5: ...Otherwise the scanner will pause on active non priority signals as previously described If a call comes in on a non priority channel that you need to respond to just press the PTT switch while the scanner is paused on that channel As long as no call comes in on the priority channel you can send and receive on the other channel scanning will resume when you finish and the channel clears Dual Watch ...

Page 6: ...ible Top panel button program ming combinations Functions are explained on the pre vious page PRE PROGRAMMED FUNCTIONS For further de tails contact your nearest Vertex Standard dealer For fu ture reference check the box next to the function that has been assigned to the button on your particular radio and keep it handy CUSTOM SETTINGS Below is a table of radio features that can be custom ized by d...

Page 7: ...priate slot s for the desired channels using a pair of tweezers or fine needle nose pli ers according to the drawing below For example to lim it CH selection to channels 1 4 insert one metal stop at the slot 16 channel 1 minus one position and the other at the slot 3 channel 4 minus one position When done press the CH selector knob back on the shaft align the indicator of the CH knob to channel 1 ...

Page 8: ...n Conducted Spurious Emmisions FM Hum Noise Audio Distortion 1 kHz 32 450 488 MHz 12 5 25 kHz 7 2 VDC Standby Saver On 19 mA Standby Saver Off 50 mA Receive 200 mA Transmit 2 1 A 11 hrs 13 3 hrs w saver 22 F to 140 F 30 C to 60 C 2 5 ppm 2 3 W x 5 9 H x 1 5 D inch w FNB 29A 59 W x 149 H x 39 D mm w FNB 29A 2 3 W x 6 7 H x 1 5 D inch w FNB 29AL 59 W x 171 H x 39 D mm w FNB 29A 1 21 lbs 547 g w o AN...

Page 9: ...AL NUT 2pcs RA0277700 TOP PANEL ASS Y RA0277800 RUBBER KNOB LCD Unit MAIN Unit IF Unit PLL Unit VCO Unit REG Unit APC Unit PA Unit N0190177 ROTARY SWITCH VR Unit M4090103 SPEAKER T9206264A WIRE ASS Y R7145910A RUBBER RA0277900 CONNECTOR COVER S2000054 O RING U76004001 PLAIN WASHER AW4 VXSTD P N U20204027 U07240101 U07270127 U07430127 U32450001 U33104001 U43105001 U44204001 U32230127 U32430127 No D...

Page 10: ...10 Note ...

Page 11: ...Block Diagram 11 ...

Page 12: ...Block Diagram 12 Note ...

Page 13: ...causes audio mute gate Q2207 DTC144EU Q2202 2SB1132Q to open the au dio power amplifier power source thus disabling the au dio amplifier and silencing the receiver when no signal is being received and during transmission When a carrier appears at the discriminator noise is removed from the output causing the emitter of Q2306 to go low then Q1017 controls the signal high which in turn causes Q1003 ...

Page 14: ...ided VCO signal This DC voltage is returned to the varactor diodes on the VCO Unit locking the frequency of the VCO to the crystal reference oscilla tor In the Tx mode Tx 5 volts applied to inverter Q2106 pulls analog switch Q2101 1 2 off removing R2106 and R2122 from the PLL loop Also the transmitter VCO is modulated by the filtered speech audio applied to modulating varactor diode D2403 as previ...

Page 15: ...file on the com puter disk for the transceiver version you are aligning con taining channel settings for the high edge middle and low edge of the transceiver s frequency range in channels 1 2 and 3 respectively Up load this file to the transceiver PLL Transmitter Alignment Points I HIGH BAND EDGE CH 3 470 0 MHz LOW BAND EDGE CH 1 450 0 MHz BAND CENTER CH 2 460 0 MHz L2402 L2406 VR3204 VR3201 VR320...

Page 16: ...t VR1002 on the Con trol Unit for a deviation of 3 0 kHz for 25 kHz steps or 1 5 kHz for 12 5 kHz steps PLL Transmitter Alignment Points II CTCSS Tone Level Ë With the transceiver set to band center CH 2 set the CTCSS encoder on Ë Press the PTT switch and adjust VR1001 on the CNTL Unit for a deviation of 0 7 kHz for 25 kHz steps or 0 35 kHz for 12 5 kHz steps DTMF Tone Level Ë With the transceiver...

Page 17: ...round at the antenna con nector during the alignment procedure and when mak ing measurements install the ground plate by sliding it over the CN 1A connector and then insert and tighten the supplied M2 6 x 3 screw into the rear case see illustra tion Remember to remove the nut and washer again before as sembling the transceiver body halves CV3201 CV3202 Ë With the transceiver set to band center CH ...

Page 18: ...18 Alignment Note ...

Page 19: ...Interconnection Diagram 19 ...

Page 20: ...Interconnection Diagram 20 Note ...

Page 21: ...TX 0 V LAMP on 5 0 V LAMP off 0 V RX 2 0 V TX 1 9 V RX 5 0 V TX 0 V 5 0 V 5 0 V 5 0 V 0 V 5 0 V 5 0 V TX L 5 0 V TX H 0 V RX 5 0 V TX 0 V RX 0 V TX 0 3 V RX 0 V TX 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V 5 0 V RX 0 V TX 1 8 V 2 5 V 2 5 V SQL Close 0 V SQL Open 4 2 V TX 1 9 V TX 1 9 V RX 0 V TX 2 0 V RX 0 V TX 1 9 V TX 1 9 V RX 0 1 V TX 0 4 V RX 5 0 V TX 0 V 5 0 V RX 0 V TX 5 0 V Circuit Di...

Page 22: ...04 DTA143EU 13 Q1009 BR93LC66RF BR93L66RF Lot 16 Q1002 NJM2904V Q1005 1008 2SA1586Y SY Q1015 2SC4116GR LG Q1018 RN5VL45AA D5 Q1012 TA75S393F TA Q1006 MX165CLH Q1001 M38067ECA M38067MC Lot 8 Q1017 TC4W53FU Q1014 TC4W66FU Q1010 2SK160 K6 Q1011 FMG2 G2 Q1016 FMG5 G5 Q1003 FMW1 W1 Q1013 DTC144EU 26 Q1007 1021 UMG1 G1 Q1020 ...

Page 23: ... 001uF 50V B GRM39B102K50PT K22174821 1 A C 1029 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1030 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1031 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1032 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1033 CHIP TA CAP 10uF 6 3V TEMSVA0J106M 8R K78080027 1 A C 1034 CHIP CAP 0 1uF 16V B GRM39B104K16PT K22124805 1 A C 1035...

Page 24: ...21M50PT K22174801 1 A C 1086 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1087 CHIP TA CAP 10uF 6 3V TEMSVA0J106M 8R K78080027 1 B C 1088 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1089 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 A C 1092 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1093 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 1094 CHIP CAP 0 001uF ...

Page 25: ...16 TRANSISTOR FMG2 T148 G3070015 1 B Q 1017 IC M38067ECAGP 1 A Q 1017 IC M38067MC 463GP 8 A Q 1017 IC M38067MC 470GP 13 A Q 1018 TRANSISTOR 2SC4116GR TE85R G3341167G 1 B Q 1020 TRANSISTOR UMG1 TR G3070113 1 A Q 1021 TRANSISTOR DTA144TE TL G3070209 1 B Q 1022 TRANSISTOR DTC144EU T106 G3070041 1 B R 1001 CHIP RES 1M 1 16W 5 RMC1 16 105JATP J24185105 1 A R 1002 CHIP RES 1M 1 16W 5 RMC1 16 105JATP J24...

Page 26: ... 1 16W 5 RMC1 16 000JATP J24185000 1 B R 1051 CHIP RES 100 1 16W 5 RMC1 16 101JATP J24185101 1 B R 1052 CHIP RES 47k 1 16W 5 RMC1 16 473JATP J24185473 1 A R 1055 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 1 A R 1057 CHIP RES 0 1 16W 5 RMC1 16 000JATP J24185000 1 A R 1057 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J24185103 3 A R 1058 CHIP RES 47k 1 16W 5 RMC1 16 473JATP J24185473 1 B R 1059 CHIP RES...

Page 27: ...42900005 1 A RB1004 BLOCK RES RCB8C102J5E5A J42900005 1 B RB1006 BLOCK RES RCB8C473J5E5A J42900006 1 B RB1007 BLOCK RES RCB8C102J5E5A J42900005 1 B RB1008 BLOCK RES RCB8C473J5E5A J42900006 1 B RB1009 BLOCK RES RCB8C102J5E5A J42900005 1 B RB1010 BLOCK RES RCB8C473J5E5A J42900006 1 B RB1012 BLOCK RES RCB8C473J5E5A J42900006 1 A RB1013 BLOCK RES RCB8C102J5E5A J42900005 1 B TH1001 THERMISTOR TBPS1R472...

Page 28: ...28 CNTL Unit Note ...

Page 29: ...29 FSD 10928 DS5001 Circuit Diagram LT1ED53A D5001 LC75821E Q5001 Circuit Diagram Side A Side B Parts Layout LCD Unit ...

Page 30: ... CH GRM39CH101J50PT K22174235 1 B D 5001 LED LT1ED53A G2070548 1 A DS5001 LCD FSD 10928 G6090093 1 A J 5001 CONNECTOR 52357 1290 P1090884 1 B PL5001 LAMP 60mA 5V 5V60MA T 3 4 6153 Q1000092 1 B Q 5001 IC LC75821W G1093333 1 B R 5001 CHIP RES 330 1 16W 5 RMC1 16 331JATP J24185331 1 B R 5002 CHIP RES 330 1 16W 5 RMC1 16 331JATP J24185331 1 B R 5003 CHIP RES 47k 1 16W 5 RMC1 16 473JATP J24185473 1 B R...

Page 31: ...Parts Layout Parts List Side A Side B REF DESCRIPTION VALUE V W TOL VXSTD P N MFR S DESIG VERS LOT PCB with Compornents CB1469001 Printed Circuit Board F3364101 1 J 4101 CONNECTOR 9120B 05 P0090955 1 S 4101 TACT SWITCH SKQDAB N5090058 1 S 4102 TACT SWITCH SKQDAB N5090058 1 S 4103 TACT SWITCH SKQDAB N5090058 1 PTT Uni Diagram PTT Unit Parts Layout Parts List Side A Side B DESCRIPTION VALUE V W TOL ...

Page 32: ...32 Note ...

Page 33: ...X 4 3 V TX 0 5 V TX 0 7 V TX 2 9 V RX 1 1 V TX 1 3 V 2 9 V 4 9 V RX 0 7 V TX 0 6 V RX 1 8 4 0 V TX 1 6 4 0 V 0 8 V TX 1 5 V TX 1 8 V TX 4 7 V TX 1 7 V TX L 2 0 V TX H 0 V RX 6 8 V TX 0 V 0 9 V RX 6 8 V TX L 6 4 V TX H 6 1 V TX L 0 V TX H 2 7 V W 2 1 V N 5 0 V 7 2 V 5 0 V RX 0 V TX 0 8 V SQL Close 0 V SQL Open 4 4 V RX 0 V TX 0 8 V 1 3 V TX L 5 0 V TX H 0 V 0 V 0 V 0 V 0 V TX L 0 1 V TX H 0 2 V 0 6...

Page 34: ...Z2 Z2 Q3207 DTC124TU 05 Q3215 Side A Side B Parts Layout SGM2016AM MA Q3202 DTC144EU 26 Q3208 3210 3212 3213 3216 2SC3356 R24 Q3201 3205 2SC2620 QB Q3203 2SC5005 73 Q3204 M5223FP Q3209 2SC3357 RK Q3214 M68732HA Q3206 RN2305 YE Q3211 ...

Page 35: ...GRM39CH220J50PT K22174219 1 B C 3230 CHIP CAP 5pF 50V CH GRM39CH050C50PT K22174206 1 B C 3231 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 3232 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 3233 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 3234 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 3236 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B C 3237 CHIP TA CAP...

Page 36: ...E85L G4803208 1 B Q 3203 TRANSISTOR 2SC2620QBTR G3326207B 1 B Q 3204 TRANSISTOR 2SC5005 T1 G3350058 1 B Q 3205 TRANSISTOR 2SC3356 T2B R24 G3333567D 1 B Q 3206 IC M68732HA 22 G1092836 1 A Q 3207 TRANSISTOR IMZ2A T108 G3070060 1 B Q 3208 TRANSISTOR DTC144EU T106 G3070041 1 B Q 3209 IC M5223AFP 600C G1092955 1 B Q 3210 TRANSISTOR DTC144EU T106 G3070041 1 B Q 3211 TRANSISTOR RN2305 TE85R G3070123 1 B ...

Page 37: ...B R 3235 CHIP RES 120k 1 16W 1 RMC1 16 124FTP J24183124 6 B R 3236 CHIP RES 47k 1 16W 5 RMC1 16 473JATP J24185473 1 B R 3236 CHIP RES 47k 1 16W 1 RMC1 16 473FTP J24183473 6 B R 3237 CHIP RES 180k 1 16W 5 RMC1 16 184JATP J24185184 1 B R 3238 CHIP RES 100k 1 16W 5 RMC1 16 104JATP J24185104 1 B R 3242 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 1 B R 3243 CHIP RES 5 6k 1 16W 5 RMC1 16 562JATP J241...

Page 38: ...38 MAIN Unit Note ...

Page 39: ...39 APC Unit Circuit Diagram Side A Side B Parts Layout FMW1 W1 Q2002 RD3 6MB1 361 D2004 2SA1586Y SY Q2001 2SA1298Y IY Q2003 2SC4116GR LG Q2004 DTC144EU 26 Q2005 2006 ...

Page 40: ... 1 B D 2004 DIODE RD3 6MB1 T1B G2070392 1 A J 2001 CONNECTOR 9230B 1 11Z009 T P0090658 1 A J 2002 CONNECTOR 9230B 1 04Z009 T P0090674 1 A L 2001 M RFC 0 27uH ELJ FCR27MF L1690341 1 B L 2002 COIL A1 3 5T2 0D0 5UEW R L0021767A 1 A L 2003 COIL A1 2 5T2 0D0 5UEW R L0021761A 1 A L 2004 COIL A1 2 5T2 0D0 5UEW R L0021761A 1 A L 2005 COIL A1 1 5T2 5D0 5UEW R L0020875B 1 A L 2006 COIL A1 3 5T2 0D0 5UEW R L...

Page 41: ...41 PLL Unit DAN202U N D2104 IMD3 D3 Q2102 DTC114TK 04 Q2103 DTA144EU 16 Q2104 DTC144EU 26 Q2106 TC4W66F Q2101 MB1505PF Q2105 Circuit Diagram Side A Side B Parts Layout ...

Page 42: ...1 1 2 B C 2116 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 W O TCXO 3 B C 2117 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 2 B C 2117 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 W O TCXO 3 B C 2118 CHIP CAP 10pF 50V CH GRM39CH100D50PT K22174211 1 2 A C 2118 CHIP CAP 22pF 50V CH GRM39CH220J50PT K22174219 W O TCXO 3 A C 2119 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 2 A C 2119 ...

Page 43: ... 16W 5 RMC1 16 470JATP J24185470 1 2 A R 2112 CHIP RES 47 1 16W 5 RMC1 16 470JATP J24185470 W O TCXO 3 A R 2113 CHIP RES 22k 1 16W 5 RMC1 16 223JATP J24185223 1 2 B R 2113 CHIP RES 22k 1 16W 5 RMC1 16 223JATP J24185223 W O TCXO 3 B R 2114 CHIP RES 150k 1 16W 5 RMC1 16 154JATP J24185154 1 2 B R 2114 CHIP RES 150k 1 16W 5 RMC1 16 154JATP J24185154 W O TCXO 3 B R 2115 CHIP RES 100k 1 16W 5 RMC1 16 10...

Page 44: ... Unit DTB123EK F12 Q2204 2209 DTA143XK 33 Q2205 DTC144EU 26 Q2207 2208 2210 TDA2822D Q2206 TK11650UTL 50 Q2203 2SC4116GR LG Q2211 2SA1586Y SY Q2201 Circuit Diagram Side A Side B Parts Layout 2SB1132Q BA Q2202 ...

Page 45: ...GRM39B102K50PT K22174821 1 B C 2225 CHIP TA CAP 68uF 10V TEMSVD21A686M12R K78100030 1 B C 2226 CHIP CAP 0 1uF 25V B GRM40B104M25PT K22140811 1 B C 2227 CHIP TA CAP 22uF 10V TEMSVB21A226M 8R K78100029 1 B J 2201 CONNECTOR 9230B 1 06Z009 T P0090675 1 A J 2202 CONNECTOR 9230B 1 07Z009 T P0090676 1 A Q 2201 TRANSISTOR 2SA1586Y TE85R G3115867Y 1 B Q 2202 TRANSISTOR 2SB1132 T100 Q G3211327Q 1 A Q 2203 I...

Page 46: ...46 IF Unit DA221 K D2302 BA4116FV Q2302 2SA1586Y SY Q2306 2SC4116GR LG Q2304 Circuit Diagram Side A Side B Parts Layout MA142WK MU D2304 2305 DTA144EE 16 Q2301 DTC144EU 26 Q2303 ...

Page 47: ...2WK TX G2070534 1 B J 2301 CONNECTOR 9230B 1 03Z009 T P0090673 1 A J 2302 CONNECTOR 9230B 1 04Z009 T P0090674 1 A L 2301 M RFC 0 33uH LK1608 R33K T L1690412 1 B Q 2301 TRANSISTOR DTA144EE TL G3070074 1 B Q 2302 IC BA4116FV E2 G1092616 1 A Q 2303 TRANSISTOR DTC144EU T106 G3070041 1 B Q 2304 TRANSISTOR 2SC4116GR TE85R G3341167G 1 B Q 2306 TRANSISTOR 2SA1586Y TE85R G3115867Y 1 B R 2301 CHIP RES 3 3k ...

Page 48: ...B 1 C 2401 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 C 2402 CHIP CAP 3pF 50V CJ GRM39CJ030C50PT K22174204 1 C 2403 CHIP CAP 220pF 50V CH GRM39CH221J50PT K22174243 1 C 2404 CHIP CAP 3pF 50V CJ GRM39CJ030C50PT K22174204 1 C 2405 CHIP CAP 5pF 50V CH GRM39CH050C50PT K22174206 1 C 2406 CHIP CAP 7pF 50V CH GRM39CH070D50PT K22174208 1 REF DESCRIPTION VALUE V W TOL VXSTD P N MFR S DESIG VERS SIDE ...

Page 49: ...2070126 1 D 2404 DIODE DAN202U T106 G2070162 1 J 2401 CONNECTOR 9210B 1 03Z361 T P0090986 1 J 2402 CONNECTOR 9210B 1 04Z361 T P0090987 1 L 2401 M RFC 0 22uH ELJ NDR22JF L1690628 1 L 2402 COIL E558AN 100041 P3 L0190214 1 L 2403 CHIP COIL 0 22uH LQN21AR22J04 L1690600 1 L 2404 M RFC 0 22uH ELJ NDR22JF L1690628 1 L 2405 M RFC 0 22uH ELJ NDR22JF L1690628 1 L 2406 COIL E558AN 100040 P3 L0190213 1 L 2407...

Page 50: ...50 TCXO Unit Circuit Diagram Side A Side B Parts Layout DAN202U N D2504 IMD3 D3 Q2502 DTC114TK 04 Q2503 DTA144EU 16 Q2504 DTC144EU 26 Q2506 TC4W66F Q2501 MB1505PF Q2505 TA75S01F SA Q2507 ...

Page 51: ...RN 120 3 3 T51512012 4 L 2501 M RFC 4 7uH LK1608 4R7K T L1690688 1 A Q 2501 IC TC4W66F TE12L G1091493 1 B Q 2502 TRANSISTOR IMD3 T108 G3070053 1 A Q 2503 TRANSISTOR DTC114TK T146 G3070073 1 A Q 2504 TRANSISTOR DTA144EU T106 G3070079 1 B Q 2505 IC MB1505PF G BND TF G1091706 1 A Q 2506 TRANSISTOR DTC144EU T106 G3070041 1 A Q 2507 IC TA75S01F TE85R G1091593 1 A R 2501 CHIP RES 22k 1 16W 5 RMC1 16 223...

Page 52: ...52 Printed in Japan Copyright 2003 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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