Instruction/ maintenance manual of the product VX-2500V Vertex Standard
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1 VHF FM Transceiver VX-2500V Service Manual Introduction This manual provides technical information necessary for servicing the VX-2500V Transceiver. Servicing this equipment requires expertise in handling surface-mount chip components.
2 General Frequency range : 134-160 MHz (Type A) 148-174 MHz (Type C) Number of Systems : 32 Number of Groups : 250 Number of Channels : 250 channels (Conventional) 640 channels (Trunking) PLL Steps : 5.0 kHz/6.25kHz Power Supply Voltage : 13.8V DC ±15 % Channel Spacing : 12.
3 DSUB 9-pin Accessory Connector Pin 1 : Output Logic squelch High: Radio receiving the signal with the correct CTCSS, DCS, or LTR ID. Low: Radio not receiving the signal with the correct CTCSS, DCS, or LTR ID. Pin 2 : Output Rx discriminator JP3 (JP1503) - Flat: 10 Hz to 3.
4 Exploded View & Miscellaneous Parts • ‚ ƒ † † † † † † † ƒ … „ „ „ „ ‚ CASE RA0060100 SHIELD GASKET S5000238 SPONGE RUBBER (SHIELD) RA0365500 BLIND SEET (70 x 10) .
5 Block Diagram (1).
6 Block Diagram (2).
7 Interconnection Diagram.
8 Note.
9 Circuit Description 1. Overview The VX-2500V is a VHF FM mobile transceiver designed to operate in the frequency range of 134 to 174MHz. 2. Circuit Configuration by Frequency The receiver is a double-conversion superheterodyne with a first intermediate frequency (IF) of 44.
10 The 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 VCO is amplified by the Q1021 and routed first local/Power Module according to D1022 . The PLL IC consists of a prescaler, fractional divider, ref- erence divider and phase comparator and charge pump.
11 Alignment Introduction The VX-2500V is carefully aligned at the factory for the specified performance across the frequency range speci- fied for each version. Realignment should therefore not be necessary except in the event of a component failure, or altering version type.
12 Setup the test equipment as shown below, apply 13.8V DC power to the transceiver. The transceiver must be programmed for use in the in- tended system before alignment is attempted. The RF pa- rameters are loaded from the file during the alignment process.
13 The alignment tool outline Installation the tool This alignment tool consists, MS-DOS based, only one ex- ecute file “svc47.exe.“ You make a directly as you think fit, and copy this file. That is all of the installation pro- cess. Boot the tool Change directly and input in command line, “svc47 [en- ter],“ and boot the alignment tool.
14 - [3] REF Deviation This parameter is used to align the REF Deviation. ¦ Press [ Enter ] on “[3] REF Deviation” to align REF Deviation. ¦ Select the Channel “1“ in alignment range. ¦ Adjust the AF generator output level to 776m V rms(0dBm) at 300Hz to the pin 3 of the J1502.
15 Alignment [1] Common RX - [0] Tight NSQL This parameter is used to align the noise level in squelch Tight. It adjusts this alignment RX Tuning after ending. ¦ Select the MID frequency channel in alignment range. ¦ Set the SG output level to 0dB m EM F , and obey the message.
16 RF Unit Jumper Information JP1501 (JP1) : Determine the output supply voltage at pin 8 of DSUB 9-pin Accessory Connecto r. Close: +5.0 V (Maximum 100 mA) Open: No Action JP1502 (JP2) : Determine the output supply voltage at pin 8 of DSUB 9-pin Accessory Connecto r.
RF Unit 17 Circuit Diagram (1) RX: 0 V TX: 5.5 V HIGH POWER: 3.3 V LOW POWER: 2.5 V HIGH POWER: 2.6 V LOW POWER: 1.0 V RX: 0 V TX: 1.6 V 9.0 V 3.8 V 3.8 V 3.8 V 3.8 V 3.8 V 0.7 V RX: 8.9 V TX: 8.2 V RX: 0 V TX: 8.9 V RX: 8.8 V TX: 0 V RX: 0 V TX: 8.9 V RX: 0 V TX: 5.
RF Unit 18 Circuit Diagram (2) 4.8 V 2.2 V 0.7 V 1.3 V 1.2 V 5.3 V 5.8 V 3.7 V 3.7 V HORN OFF: 0 V HORN ACTIVE: 8.9 V HORN OFF: 0 V HORN ACTIVE: 0.6 V HORN OFF: 0 V HORN ACTIVE: 4.2 V HORN OFF: 10.0 V HORN ACTIVE: 0 V HORN OFF: 8.9 V HORN ACTIVE: 0 V HORN OFF: 8.
RF Unit 19 Parts Layout (Side A) 1 3 4 2 A C B E D G F H 2SA1602A (MF) (Q1505) 2SB1301 (ZQ) (Q15 11) 2SD1368CB (CB) (Q1504) 2SK508 (K52) (Q1013) 3SK228 (XR) (Q1026) IMH6A (H6) (Q1017) M5223 (Q1019) NJ.
RF Unit 20 Parts Layout (Side B) a c b e d g f h 1 3 4 2 RA30H1317M (Q1014) TA31136FN (Q1028) 2SA1602A (MF) (Q1031) 2SB 1132 (BA) (Q1009) 2SB1201S (Q1005) 2SC4 116 (LG) (Q1001) 2SC4154 (LE) (Q1007, 15.
21 RF Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR PCB with Component CB1724001 Printed Circuit Board AC031N000 FR0075900 1- C 1001 CHIP CAP. 470pF 50V CH GRM39CH471J50PT K22174249 1- A G3 C 1002 CHIP CAP.
22 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR RF Unit Parts List C 1081 CHIP CAP. 470pF 50V CH GRM39CH471J50PT K22174249 1- B g3 C 1082 CHIP CAP. 220pF 50V CH GRM39CH221J50PT K22174243 1- A D3 C 1083 CHIP CAP. 470pF 50V CH GRM39CH471J50PT K22174249 1- B g2 C 1084 CHIP CAP.
23 RF Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR C 1168 CHIP CAP. 470pF 50V CH GRM39CH471J50PT K22174249 1- A G3 C 1169 CHIP CAP. 0.01uF 50V B GRM39B103M50PT K22174823 1- A C1 C 1170 CHIP CAP. 22pF 50V CH GRM39CH220J50PT K22174219 1- B f3 C 1171 CHIP CAP.
24 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR RF Unit Parts List C 1246 CHIP CAP. 0.01uF 50V B GRM39B103M50PT K22174823 1- B f1 C 1247 CHIP CAP. 0.001uF 50V B GRM39B102K50PT K22174821 1- A E1 C 1248 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A F4 C 1249 CHIP CAP.
25 RF Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR C 1541 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B f2 C 1543 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B f1 C 1544 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A A2 C 1545 CHIP CAP.
26 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR RF Unit Parts List L 1032 M.RFC 0.082uH HK1608 82NJ-T L1690527 1- B b3 L 1033 M.RFC 0.22uH HK1608 R22J-T L1690940 1- B c3 L 1034 M.RFC 0.082uH HK1608 82NJ-T L1690527 1- B d2 L 1035 M.
27 RF Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR R 1015 CHIP RES. 100k 1/16W 5% RMC1/16 104JATP J24185104 1- A D1 R 1016 CHIP RES. 100k 1/16W 5% RMC1/16 104JATP J24185104 1- A D1 R 1017 CHIP RES. 150k 1/16W 5% RMC1/16 154JATP J24185154 1- A C3 R 1018 CHIP RES.
28 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR RF Unit Parts List R 1091 CHIP RES. 39k 1/16W 5% RMC1/16 393JATP J24185393 1- A C3 R 1092 CHIP RES. 2.2k 1/16W 5% RMC1/16 222JATP J24185222 1- A C3 R 1093 CHIP RES. 56 1/16W 5% RMC1/16 560JATP J24185560 1- B d2 R 1094 CHIP RES.
29 RF Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR R 1505 CHIP RES. 330 1/16W 5% RMC1/16 331JATP J24185331 1- B g1 R 1506 CHIP RES. 2.2k 1/16W 5% RMC1/16 222JATP J24185222 1- A B1 R 1507 CHIP RES. 1.
30 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR RF Unit Parts List Note.
PANEL Unit 31 Circuit Diagram LIGHT ON: 5.0 V LIGHT OFF: 0 V LIGHT ON: 3.9 V LIGHT OFF: 0 V BUSY: 2.2 V TX: 1.8 V 5.0 V 5.0 V 2.7 V 8.2 V 5.0 V FLASH ROM WRITE: 5.0 V FLASH ROM WRITE: 5.2 V FLASH ROM WRITE: 5.2 V HOOK ON: 4.7 V HOOK OFF: 0.5 V FLASH ROM WRITE: 5.
PANEL Unit 32 Note.
PANEL Unit 33 Parts Layout (Side A) A C B E D G F H 1 2 LC87F72C8A (Q2013) BU4066BF (Q2024) S-93C56AMFN (Q20 11) 2SC4617 (BR) (Q2004, 2020) BRPG12 11C (D2004) DA221 (K) (D2003, 2033, 2034) MC2846 (A4).
PANEL Unit 34 Parts Layout (Side B) a c b e d g f h 1 2 AK2345 (Q2016) M62364FP (Q2014) LA8630M (Q2017) NJM2902V (Q2015, 2021, 2022) NJM78L05 (Q2006) 2SC4617 (BR) (Q2001, 2002, 2005, 2007) PDTC144EE (.
35 PANEL Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR PCB with Component CB1725001 Printed Circuit Board AC031U000 FR0076300 1- C 2001 CHIP CAP. 0.1uF 10V BJ LMK105BJ104KV-F K22108806 1- A B1 C 2002 CHIP TA.
36 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR PANEL Unit Parts List C 2081 CHIP CAP. 10pF 50V CH UMK105CH100DW-F K22178258 1- B d1 C 2083 CHIP CAP. 820pF 50V B UMK105B821KW-F K22178828 1- B c1 C 2085 CHIP TA.CAP. 10uF 6.
37 PANEL Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR Q 2019 TRANSISTOR PDTC144EE G3070244 1- B d2 Q 2020 TRANSISTOR 2SC4617 TL R G3346178R 1- A E1 .
38 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR PANEL Unit Parts List R 2071 CHIP RES. 1.5M 1/16W 5% RMC1/16S 155JTH J24189063 1- B d2 R 2072 CHIP RES. 1.5k 1/16W 5% RMC1/16S 152JTH J24189027 1- A B2 R 2073 CHIP RES.
39 PANEL Unit Parts List REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR R 2162 CHIP RES. 82k 1/16W 5% RMC1/16S 823JTH J24189048 1- A E2 R 2163 CHIP RES. 220 1/16W 5% RMC1/16S 221JTH J24189017 1- B f1 R 2164 CHIP RES. 100k 1/16W 5% RMC1/16S 104JTH J24189049 1- B g2 R 2168 CHIP RES.
40 REF DESCRIPTION VALUE V/W TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR PANEL Unit Parts List Note.
18 Copyright 2003 VERTEX STANDARD CO., LTD. All rights reserved. No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO.
An important point after buying a device Vertex Standard VX-2500V (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Vertex Standard VX-2500V yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Vertex Standard VX-2500V - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Vertex Standard VX-2500V you will learn all the available features of the product, as well as information on its operation. The information that you get Vertex Standard VX-2500V will certainly help you make a decision on the purchase.
If you already are a holder of Vertex Standard VX-2500V, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Vertex Standard VX-2500V.
However, one of the most important roles played by the user manual is to help in solving problems with Vertex Standard VX-2500V. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Vertex Standard VX-2500V along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
