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UHF FM Transceiver
VX-4500 Series
VX-4600 Series
Service Manual
VX-4500 Series
Introduction
This manual provides the technical information necessary for servicing the VX-4500/-4600 Series Mobile 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 are 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
(surface-mount devices), and the other has either a mixture of both chip and leaded components (trimmers, coils, electrolytic
capacitors, ICs, etc.), or leaded components only.
As described in the pages to follow, the advanced microprocessor design of the VX-4500/-4600 allows a complete alignment of
this transceiver to be performed without opening the case of the radio; all adjustments can be performed from the personal
computer, using with the Vertex Standard FIF-12 USB Programming Interface and CE115 Software.
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.
The VX-4500/-4600 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 apparatus. 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.
Specifications ................................................................. 2
DSUB 15-pin Accessory Connector ............................. 3
Exploded View & Miscellaneous Parts ........................ 4
Block Diagram ............................................................... 5
Parts List ........................................................................ 6
Circuit Description ........................................................ 7
Alignment ....................................................................... 9
VX-4500/-4600 Series UHF FM Transceiver Service Manual
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
©
Important Note
Contents
Installation of Option .................................................. 23
Board Units (Schematics & Layouts)
MAIN Unit ............................................................... 24
FRONT-A Unit ( VX-4500 ) ..................................... 36
FRONT-B Unit ( VX-4600 ) ..................................... 40
Optional Units (Schematics & Layouts)
DVS-8 Voice Storage Unit ...................................... 44
Vertex Standard LMR, Inc.
2013 Vertex Standard LMR, Inc.
VX-4600 Series
EC093U90G
1
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Table of Contents
Related Manuals for Vertex VX-4500 Series
Summary of Contents for Vertex VX-4500 Series
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Page 1: Table Of Contents
Vertex Standard FIF-12 USB Programming Interface and CE115 Software. 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. -
Page 2: Specifications
450 - 520 MHz (512 MHz: USA only) (TYP D) /400 - 470 MHz (TYP A) Frequency Ranges: Number of Channels: 8 channels (VX-4500 Series) 512 channels with 32 group (VX-4600 Series) Power Supply Voltage: 13.6 V ± 20 % Channel Spacing: 12.5/20/25 kHz... -
Page 3: Dsub 15-Pin Accessory Connector
DSUB 15-pin Accessory Connector Pin 1: AF IN A Pin 7: TRX NALOG NPUT External Microphone Input. Nominal input level is This port is intended for controlling an external TX/RX 4 mV (or –10 dBm; programmed via the CE115 program- switching circuit. -
Page 4: Exploded View & Miscellaneous Parts
Exploded View & Miscellaneous Parts Non-designated parts are available only as part of a designated assembly. VX-4500/-4600 Series UHF FM Transceiver Service Manual... -
Page 5: Block Diagram
Block Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual... -
Page 6: Parts List
Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. LOT SIDE LAY ADR PCB with Components MAIN UNIT CS2093701 CH:8, POW:45, TYP D CS2093702 CH:512, POW:45, TYP D CS2093703 CH:8, POW:45, TYP A CS2093704 CH:512, POW:45, TYP A CS2093705 CH:8, POW:25, TYP A CS2093706... -
Page 7: Circuit Description
Circuit Description 1. Circuit Configuration by Frequency 2-4. Audio amplifier Detected signal from Q1054 (NJM2591V) is delivered to The receiver is a double-conversion superheterodyne with a first Q1010 (FQ0801) pin 28 and is output by Q1010 (FQ0801) intermediate frequency (IF) of 67.65 MHz and a second IF of pin 17 through the band pass filter. - Page 8 Circuit Description 3. Transmitter System 4-1. VCO While the radio is receiving, the RX oscillator Q1034 (2SK508) 3-1. Mic Amplifier in VCO generates a programmed frequency between 382.35 The AF signal from microphone jack J2001 (VX-4500) or J3001 and 444.35 MHz as 1st local signal. While the radio is transmit- (VX-4600) is amplified with microphone amplifier in Q1010 ting, the TX oscillator Q1036 (2SK508) in VCO generates a (FQ0801), is amplified a second time after microphone selec-...
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Page 9: Alignment
“ground”. caused by unauthorized attempts at realignment are not cov- ered by the warranty policy. Also, Vertex Standard must re- After completing one step, read the following step to determine serve the right to change circuits and alignment procedures in whether the same test equipment will be required. -
Page 10: Test Setup
Alignment Test Setup The Alignment Tool Outline Setup the test equipment as shown below, and then apply 13.6V Installation of the alignment tool DC power to the transceiver. Install the CE115 (PC Programming Software) to your PC. “Alignment“ function in the “Radio“ menu tab of CE115. Action of the switches When the transceiver is in the “Alignment mode,“... - Page 11 Alignment : when all items are to be aligned, it is strongly recom- mended to align them according to the following sequence. De- Alignment Mode tailed information for each step may be found in the “Help” file The Alignment mode allows you to align the entire radio. The within CE115 (PC Programming Software).
- Page 12 Alignment 1. VCO (RX VCO/TX VCO) - Normally there is no need to adjust this parameter - This parameter is to align the VCO Voltage adjustment. 2. PLL Reference Frequency Frequency This parameter is to align the reference frequency for PLL. 1.
- Page 13 Alignment 3. RX Sensitivity (RX Tune) This parameter is to align the RX BPF (Band Pass Filter) for Receive (RX) sensitivity. The PLL Reference Frequency (Frequency) alignment must be done before this alignment is performed. 1. Press the “RX Tune” button to start the alignment. The RX Sensitivity Alignment window will appear.
- Page 14 Alignment 4. Squelch (SQL) This parameter is to align the SQL (Squelch) Sensitivity. There are several alignments as follows in the Squelch Sensitivity. Tight SQL Level (TI NSQ W/N) The Alignment for the Noise SQL Tight level at Wide (5k/4k) or Narrow (2.5k).
- Page 15 Alignment 5. TX Power This parameter is to align the “Power High”, “Power Low3”, “Power Low2” or “Power Low1” for the selected channel. 1. Press the “TX Pwr(H / L3 / L2 / L1)” button to start the alignment. The TX Power Alignment window will appear. 2.
- Page 16 Alignment 6. Maximum Deviation <Wide> / <Narrow> This parameter is to align the “Maximum Deviation” (Wide/Narrow). 1. Press the “Max Dev (W/N)” button to start the alignment. 2. The Max Deviation alignment window will appear. 3. Set the AF Signal Generator output level to –24 dBm at 1 kHz tone (Sine Wave).
- Page 17 Alignment Please adjust the following items when needed. Modulation Balance <Wide> / <Narrow> (This Alignment is difficult.) This parameter is to align the “Modulation Balance” (Wide/Narrow). 1. Press the “Mod Bal (W/N)” button to start the alignment. 2. The Modulation Balance Alignment window will appear. 3.
- Page 18 Alignment CTCSS Deviation <Wide> / <Narrow> This parameter is to align CTCSS Deviation of the selected channel. 1. Press the “CTC Dev (W/N)” button to start the alignment. The CTCSS Deviation Alignment window will appear. 2. Click the left mouse button on the slide bar or press the Up / Down arrow key, to select the desired channel.
- Page 19 Alignment DCS Deviation <Wide> / <Narrow> This parameter is to align “DCS Deviation” of the selected channel. 1. Press the “DCS Dev (W/N)” button to start the alignment. The DCS Deviation Alignment window will appear. 2. Click the left mouse button on the slide bar or press the Up / Down arrow key, to select the desired channel.
- Page 20 Alignment DTMF Deviation This parameter is to align “DTMF Deviation”. 1. Press the “DTMF” button to start the alignment. The DTMF Alignment window will appear. 2. Click the “PTT” button or press the “SPACE” bar the radio starts to transmit on the Center frequency channel. 3.
- Page 21 Alignment VOX On Level This parameter is to align the “VOX On Level”. Set the Sensitivity of the VOX circuitry's input audio detector. 1. Press the “VOX ON Level” button to start the alignment. The VOX ON Level window will appear. 2.
- Page 22 Alignment EXT AF OUT Level This parameter is to align the “EXT AF OUT Level”. Set the Low-level receiver output of pin 2 of the D-SUB Connector. 1. Press the “Ext AF Out” button to start the alignment. The Ext AF Out Level window will appear. 2.
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Page 23: Installation Of Option
Lift up the Top Case Cover to remove while sprend The DVS-8 is is easily programmed the configulations using a both side of the Top Case Cover. Vertex Standard CE115 programmer with an IBM PC-compat- 3. Referring to Figure 2, remove the Shield Case Cover. ible computer. -
Page 24: Main Unit
MAIN Unit (Lot. 1~2) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual... - Page 25 MAIN Unit (Lot. 1~2) Parts Layout (Side A) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 26 MAIN Unit (Lot. 1~2) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 27 MAIN Unit (Version A: Lot. 3, Version D: Lot. 3~5) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 28 MAIN Unit (Version A: Lot. 3, Version D: Lot. 3~5) Parts Layout (Side A) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 29 MAIN Unit (Version A: Lot. 3, Version D: Lot. 3~5) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 30 MAIN Unit (Version A: Lot. 4~10, Version D: Lot. 6~10) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 31 MAIN Unit (Version A: Lot. 4~10, Version D: Lot. 6~10) Parts Layout (Side A) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 32 MAIN Unit (Version A: Lot. 4~10, Version D: Lot. 6~10) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 33 MAIN Unit (Lot. 11~) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 34 MAIN Unit (Lot. 11~) Parts Layout (Side A) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 35 MAIN Unit (Lot. 11~) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
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Page 36: Front-A Unit ( Vx-4500 )
FRONT-A Unit (VX-4500) (Lot. 1~3) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual... - Page 37 FRONT-A Unit (VX-4500) (Lot. 1~3) Parts Layout (Side A) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 38 FRONT-A Unit (VX-4500) (Lot. 4~) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 39 FRONT-A Unit (VX-4500) (Lot. 4~) Parts Layout (Side A) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
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Page 40: Front-B Unit ( Vx-4600 )
FRONT-B Unit (VX-4600) (Lot. 1~3) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual... - Page 41 FRONT-B Unit (VX-4600) (Lot. 1~3) Parts Layout (Side A) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 42 FRONT-B Unit (VX-4600) (Lot. 4~) Circuit Diagram VX-4500/-4600 Series UHF FM Transceiver Service Manual...
- Page 43 FRONT-B Unit (VX-4600) (Lot. 4~) Parts Layout (Side A) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual...
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Page 44: Dvs-8 Voice Storage Unit
DVS-8 Voice Storage Unit (Option) Circuit Diagram Parts Layout (Side A) Parts Layout (Side B) VX-4500/-4600 Series UHF FM Transceiver Service Manual... - Page 45 Copyright 2013 Vertex Standard LMR, Inc. All rights reserved No portion of this manual may be reproduced without the permission of Vertex Standard LMR, Inc. VX-4500/-4600 Series UHF FM Transceiver Service Manual...