Vertex Standard VX-2500 User Manual

1VHF FM TransceiverVX-2500VService ManualIntroductionThis manual provides technical information necessary for servicing the VX-2500V Transceiver.Servi

10The output of the VCO is amplified by the Q1020 and rout-ed to the pin 5 of the PLL IC. Also the output of the VCOis amplified by the Q1021 and rout

11AlignmentIntroductionThe VX-2500V is carefully aligned at the factory for thespecified performance across the frequency range speci-fied for each ve

12Setup the test equipment as shown below, apply 13.8VDC power to the transceiver.The transceiver must be programmed for use in the in-tended system b

13The alignment tool outlineInstallation the toolThis alignment tool consists, MS-DOS based, only one ex-ecute file “svc47.exe.“ You make a directly a

14- [3] REF DeviationThis parameter is used to align the REF Deviation.¦Press [Enter] on “[3] REF Deviation” to align REFDeviation.¦Select the Channel

15Alignment[1] Common RX- [0] Tight NSQLThis parameter is used to align the noise level in squelchTight. It adjusts this alignment RX Tuning after end

16RF Unit Jumper InformationJP1501 (JP1): Determine the output supply voltage at pin 8 of DSUB 9-pin Accessory Connector.Close: +5.0 V (Maximum 100 mA

RF Unit17Circuit Diagram (1)RX: 0 VTX: 5.5 VHIGH POWER: 3.3 VLOW POWER: 2.5 VHIGH POWER: 2.6 VLOW POWER: 1.0 VRX: 0 VTX: 1.6 V9.0 V3.8 V3.8 V3.8 V3.8

RF Unit18Circuit Diagram (2)4.8 V2.2 V0.7 V1.3 V1.2 V5.3 V5.8 V3.7 V3.7 VHORN OFF: 0 VHORN ACTIVE: 8.9 VHORN OFF: 0 VHORN ACTIVE: 0.6 VHORN OFF: 0 VHO

RF Unit19Parts Layout (Side A)1342A CB ED GF H2SA1602A (MF)(Q1505)2SB1301 (ZQ)(Q1511)2SD1368CB (CB)(Q1504)2SK508 (K52)(Q1013)3SK228 (XR)(Q1026)IMH6A (

2GeneralFrequency range: 134-160 MHz (Type A)148-174 MHz (Type C)Number of Systems: 32Number of Groups: 250Number of Channels : 250 channels (Conventi

RF Unit20Parts Layout (Side B)acbedgf h1342RA30H1317M(Q1014)TA31136FN(Q1028)2SA1602A (MF)(Q1031)2SB1132 (BA)(Q1009)2SB1201S(Q1005)2SC4116 (LG)(Q1001)2

21RF UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRPCB with Component CB1724001Printed Circuit Board AC03

22REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRRF UnitParts ListC 1081 CHIP CAP. 470pF 50V CH GRM39CH471J50PT K2217424

23RF UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRC 1168 CHIP CAP. 470pF 50V CH GRM39CH471J50PT K2217424

24REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRRF UnitParts ListC 1246 CHIP CAP. 0.01uF 50V B GRM39B103M50PT K22174823

25RF UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRC 1541 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805

26REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRRF UnitParts ListL 1032 M.RFC 0.082uH HK1608 82NJ-T L1690527 1- B b3L 1

27RF UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRR 1015 CHIP RES. 100k 1/16W 5% RMC1/16 104JATP J241851

28REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRRF UnitParts ListR 1091 CHIP RES. 39k 1/16W 5% RMC1/16 393JATP J2418539

29RF UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRR 1505 CHIP RES. 330 1/16W 5% RMC1/16 331JATP J2418533

3DSUB 9-pin Accessory ConnectorPin 1: Output Logic squelchHigh: Radio receiving the signal with the correct CTCSS, DCS, or LTR ID.Low: Radio not recei

30REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRRF UnitParts ListNote

PANEL Unit31Circuit DiagramLIGHT ON: 5.0 VLIGHT OFF: 0 VLIGHT ON: 3.9 VLIGHT OFF: 0 VBUSY: 2.2 VTX: 1.8 V5.0 V5.0 V2.7 V8.2 V5.0 VFLASH ROM WRITE: 5.0

PANEL Unit32Note

PANEL Unit33Parts Layout (Side A)A CB ED GF H12LC87F72C8A(Q2013)BU4066BF(Q2024)S-93C56AMFN(Q2011)2SC4617 (BR)(Q2004, 2020)BRPG1211C(D2004)DA221 (K)(D2

PANEL Unit34Parts Layout (Side B)acbedgf h12AK2345(Q2016)M62364FP(Q2014)LA8630M(Q2017)NJM2902V(Q2015, 2021, 2022)NJM78L05(Q2006)2SC4617 (BR)(Q2001, 20

35PANEL UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRPCB with Component CB1725001Printed Circuit Board A

36REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRPANEL UnitParts ListC 2081 CHIP CAP. 10pF 50V CH UMK105CH100DW-F K22178

37PANEL UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRQ 2019 TRANSISTOR PDTC144EE G3070244 1- B d2Q 2020

38REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRPANEL UnitParts ListR 2071 CHIP RES. 1.5M 1/16W 5% RMC1/16S 155JTH J241

39PANEL UnitParts ListREF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRR 2162 CHIP RES. 82k 1/16W 5% RMC1/16S 823JTH J2418

4Exploded View & Miscellaneous Parts•‚ƒ†††††††ƒ…„„„„‚CASERA0060100SHIELD GASKETS5000238SPONGE RUBBER (SHIELD)RA0365500BLIND SEET (70 x 10)RA036550

40REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS.LOTSIDELAY ADRPANEL UnitParts ListNote

18Copyright 2003VERTEX STANDARD CO., LTD.All rights reserved.No portion of this manualmay be reproducedwithout the permission ofVERTEX STANDARD CO., L

5Block Diagram (1)

6Block Diagram (2)

7Interconnection Diagram

8Note

9Circuit Description1. OverviewThe VX-2500V is a VHF FM mobile transceiver designedto operate in the frequency range of 134 to 174MHz.2. Circuit Confi