Tait 2000-6231 Mobile Transceiver User Manual 2k3 01

Tait Limited Mobile Transceiver 2k3 01

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T2000 user manual part 1

Customer ServicesMobile Radio DivisionTait Electronics LtdPO Box 1645ChristchurchNew ZealandFax: (64) (3) 358-3903Company Name ___________________________Name ___________________________Department ___________________________Street or PO Box ___________________________Town and Postcode ___________________________Country ___________________________Manual Product Code M___________-______-_______So that you are kept up to date with documentation relevant to this product, please fill outand return this registration form.Do you wish to be notified by your Tait subsidiary when Revision Packages are available, sothat you can keep this manual up to date? YesWould you like to know about technical training services?  YesIn order to improve our documentation, we would like your opinion of this manual. Pleaseput a mark in the column that best describes your opinion.Comments: ________________________________________________________________________________________________________________________________________________________Is there any additional documentation we should provide?_______________________________________________________________________________________________________________What industry are you in (e.g. Telecomms, Security, Forestry)?___________________________Do you use other Tait products?poor average excellentTechnical DepthTechnical AccuracyReadabilityEase of UseDocument FormatOverall SatisfactionT2000  T700  T800 Mobile Data  Trunking  Other



Tait Electronics Ltd558 Wairakei RoadP.O. Box 1645ChristchurchNew ZealandPhone: 64 3 358-3399Fax: 64 3 358-3636Tait Electronics (Aust) Pty Ltd275 Toombul RoadNorthgate 4013P.O. Box 679VirginiaQueensland 4014AustraliaPhone: 61 7 3865-7799Toll Free: 1 300 304-344Fax: 61 7 3865-7990E-mail: helpdesk@tait.com.auTait Mobile Radio Inc.Unit 5, 158 Anderson AvenueMarkhamOntario L6E1A9CanadaPhone: 1 905 472-1100Fax: 1 905 472-5300E-mail: 110252.44@compuserve.comTait France S.A.R.L.2 avenue de la Cristallerie92 316 Sèvres, CedexFrancePhone: 33 1 41 14-05-50Fax: 33 1 41 14-05-55E-mail: 100675.651@compuserve.comTait Mobilfunk GmbHWillstätterstraße 50D-90449 Nürnberg 60GermanyPhone: 49 911 967-460Fax: 49 911 967-4679E-mail: tait@t-online.deTait Mobile Radio (Hong Kong) LtdRoom 703A New East OceanCentre9 Science Museum RoadTsim Sha Tsui EastHong KongPhone: 852 2369-3040Fax: 852 2369-3009E-mail: 106122.2060@compuserve.comTait Communications LtdUnit 4, 75 Blenheim RoadP.O. Box 1185ChristchurchPhone: 64 3 348-3301Fax: 64 3 343-0558E-mail: nsc@tcl.tait.co.nzTait Electronics (Far East) Pte Ltd4 Leng Kee RoadSIS Building #05-11ASingapore 159088Phone: 65 471-2688Fax: 65 479-7778E-mail: taittfe@singnet.com.sgTait Mobile Radio (Taiwan) Ltd1104, 142 Chung Hsiao E RdSec 4TaipeiTaiwanPhone: 886 2 2731-1290Fax: 886 2 2711-6351E-mail: tait8503@ms7.hinet.netTait Mobile Radio Ltd14/1 Suwan Tower, Ground FloorSoi Saladaeng 1North Sathorn RdBangrakBangkok 10500ThailandPhone: 662 267-6290Fax: 662 267-6293E-mail: taitthd@loxinfo.co.thTait Mobile Radio LtdErmine Business ParkErmine RoadHuntingdonCambridgeshire PE18 6YAUnited KingdomPhone: 44 1480-52255Fax: 44 1480-411996E-mail: techsupport@tait.co.ukTait Electronics (USA) Inc.9434 Old Katy RoadSuite 110HoustonTexas 77055USAPhone: 1 713 984-8684Toll Free: 1 800 222-1255Fax: 1 713 468-6944E-mail: tech@taitus.com

!This manual contains general, technical and servicing informa-tion on T2000 Series II mobile two-way radios.We have published this manual in a ring binder so that “revisionpackages” containing additional information can be added asrequired.Revision packages will normally be published to coincide withthe release of information on a new PCB, and may also containadditions or corrections pertaining to other parts of the manual.If you return the customer registration card at the front of thismanual, you will be notified when revision packages containingnew PCB information and/or text are available. You may thenorder as many packages as you require from your local TaitCompany. Revision packages are supplied ready-punched forinclusion in your manual.Each page in this manual has a date of issue. This is to complywith various Quality Standards, but will also serve to identifywhich pages have been updated and when. Each page and itspublication date is listed in the “List of Effective Pages”, and anew list containing any new/revised pages and their publica-tion dates will be sent with each revision package.Any portion of text that has been changed is marked by a verti-cal line (as shown at left) in the outer margin of the page. Wherethe removal of an entire paragraph means there is no text left tomark, an arrow (as shown at left) will appear in the outer mar-gin. The number beside the arrow will indicate how many para-graphs have been deleted.The manual issue and revision status are indicated by the lastthree digits of the manual product code. These digits start at 100and will increment through 101, 102, 103, etc., as revision pack-ages are published, e.g: Thus, Issue 301 indicates the first revision to issue 3, and meansthat one package should have been added to the manual. Theissue digit will only change if there is a major product revision,or if the number of revision packages to be included means thatthe manual becomes difficult to use, at which point a new issuemanual will be published in a new ring binder.PCB information is provided for all current issue PCBs, as wellas all previous issue PCBs manufactured in production quanti-ties, and is grouped according to PCB. Thus, you will find theparts list, grid reference index (if necessary), PCB layouts andcircuit diagram(s) for each individual PCB grouped together.23 0 1issue status revision status

"If you find an error in this manual, or have a suggestion on howit might be improved, please do not hesitate to contact the Tech-nical Writer, Product Support Group, Tait Mobile Radio Divi-sion, Tait Electronics Ltd, P.O. Box 1645, Christchurch, NewZealand.##$Any enquiries regarding this manual or the equipment it describes should be addressedin the first instance to your nearest approved Tait Dealer or Service Centre. Further tech-nical assistance may be obtained from the Product Support Group, Tait Mobile RadioDivision, Tait Electronics Ltd, Christchurch, New Zealand.%&'(&!In the interests of improving performance, reliability or servicing, Tait Electronics Ltdreserve the right to update their equipment and/or manuals without prior notice.)&All information contained in this manual is the property of Tait Electronics Ltd. Allrights are reserved. This manual may not, in whole or part, be copied, photocopied,reproduced, translated stored or reduced to any electronic medium or machine readableform without prior written permission from Tait Electronics Ltd.*#Service Manuals should be ordered from your nearest Tait Branch or approved Dealer.When ordering, quote the Tait product code and, where applicable, the version.*$M2000-00-300 T2000 Series II Service Manual Issue 300 published January 1997Issue 301 published March 1998

+,*'#The total number of pages in this Manual is 484, as listed below. Page Issue Date131/12/97231/12/97331/10/96431/10/96531/12/97631/12/97731/12/97831/12/97931/12/9710 31/10/9611 31/12/9712 31/12/9713 31/12/9714 31/12/9715 31/12/9716 31/12/9717 31/12/9718 31/12/9719 31/12/9720 31/12/971.1 31/10/961.2 31/10/961.3 31/10/961.4 31/10/961.5 31/12/971.6 31/12/971.7 31/10/961.8 31/10/961.9 31/12/971.10 31/10/962.1 31/10/962.2 31/10/962.3 31/10/962.4 31/10/962.5 31/10/962.6 31/10/962.7 31/10/962.8 31/10/962.9 31/10/962.10 31/10/962.11 31/10/962.12 31/10/962.13 31/10/962.14 31/10/962.15 31/10/962.16 31/10/962.17 31/10/962.18 31/10/962.19 31/10/962.20 blank3.1 31/12/973.2 31/10/963.3 31/10/963.4 31/10/963.5 31/10/963.6 31/12/973.7 31/10/963.8 31/10/963.9 31/12/973.10 31/12/973.11 31/12/973.12 31/10/963.13 31/10/963.14 31/10/963.15 31/10/963.16 31/10/963.17 31/10/963.18 31/10/964.1 31/10/964.2 31/12/974.3 31/10/964.4 31/10/964.5 31/10/964.6 31/10/964.7 31/10/964.8 31/10/964.9 31/10/964.10 31/10/964.11 31/10/964.12 blank5.1 31/10/965.2 31/10/965.3 31/10/965.4 31/10/965.5 31/10/965.6 31/10/965.7 31/10/965.8 31/10/965.9 31/10/965.10 31/10/965.11 31/10/965.12 31/10/965.13 31/10/965.14 31/10/965.15 31/10/965.16 31/10/96

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1) 2$1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.21.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.31.2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.31.2.2 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.31.2.3 Receiver Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.51.2.4 Transmitter Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.71.2.5 Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.81.2.6 Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.91.2.6.1 T2030, T2035, T2040 & T2050 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.91.2.6.2 T2060 Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.91.3 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.91.4 Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.10 )##&2.1 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.22.2 Synthesiser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.32.3 Audio & Regulators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.42.4 TCXO/TX Audio PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.42.5 IF PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.52.6 T2000-100 & -400 RF PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.62.6.1 T2000-100 & -400 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.62.6.2 T2000-100 & -400 Exciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.72.6.3 T2000-100 & -400 Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.72.7 T2000-200 RF PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.82.7.1 T2000-200 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.82.7.2 T2000-200 Exciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.92.7.3 T2000-200 Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.92.8 T2000-300 RF PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.102.8.1 T2000-300 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.102.8.2 T2000-300 Exciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.112.8.3 T2000-300 Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.112.9 T2000-500, T2000-600, T2000-700, -900 & -000 RF PCB. . . . . . . . . . . . . . . . . . . . . .2.122.9.1 T2000-500, -600, -700, -900 & -000 Receiver . . . . . . . . . . . . . . . . . . . . . . .2.122.9.2 T2000-500, -600, -700 -900 & -000 Exciter . . . . . . . . . . . . . . . . . . . . . . . . .2.132.9.3 T2000-500, -600, -700, -900 & -000 Power Amplifier. . . . . . . . . . . . . . . .2.13

2.10 T2000-800 RF PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.142.10.1 T2000-800 Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.142.10.2 T2000-800 Exciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.152.10.3 T2000-800 Power Amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.152.11 Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.162.11.1 T2010 & T2015 HC05 Logic PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.162.11.2 T2020, T203X, T2040, T2050 & T2060 HC11 Logic PCB . . . . . . . . . . . . .2.19 $##3.1 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.23.1.1 Caution: Accidental Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.23.1.2 Caution: Antenna Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.23.1.3 Caution: Beryllium Oxide & Power Transistors . . . . . . . . . . . . . . . . . . . .3.23.1.4 Caution: CMOS Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.23.1.5 Caution: Screw Head Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.33.2 Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.53.2.1 To Gain Access To The Logic PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.53.2.2 To Remove The Bottom Cover And Microprocessor Shield . . . . . . . . . .3.53.2.3 To Detach The Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.63.2.3.1 Locally Mounted Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.63.2.3.2 Remotely Mounted Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.63.2.4 To Disassemble The Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.73.2.4.1 T2010, T2015, T203X & T2060 Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.73.2.4.2 T2020, T2040 & T2050 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.93.2.5 To Detach The EMC Filter PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.113.2.6 To Remote A Locally Mounted T2020, T2040 & T2050. . . . . . . . . . . . . . 3.113.3 Power Amplifier - Special Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.123.3.1 To Replace PA Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.123.3.2 To Remove Case Mica Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.123.4 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.133.4.1 Surface Mount Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.133.4.1.1 Surface Mount Device (SMD) Precautions. . . . . . . . . . . . . . . . . . . . . . . .3.133.4.1.2 Servicing Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.133.4.1.3 Removal & Replacement Of SMD Components . . . . . . . . . . . . . . . . . . .3.153.4.1.4 Common Causes Of SMD Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.173.4.2 Leaded Component Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.173.4.2.1 Desoldering Iron Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.173.4.2.2 Component Cutting Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.183.5 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.18" 3#4.1 Test Equipment Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.24.2 Connecting The Radio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.3

4.3 Trunked Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.44.3.1 Trunking System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.44.4 Receiver Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.54.4.1 To Check The Squelch Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.54.4.2 To Check The Squelch Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.54.4.3 To Check The Audio Output Level And Distortion . . . . . . . . . . . . . . . . .4.64.4.4 To Check The Sinad Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.64.4.5 To Check The Signal+Noise To Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . .4.74.4.6 To Check The Ultimate Signal To Noise Ratio. . . . . . . . . . . . . . . . . . . . . .4.74.4.7 RSSI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.74.4.8 To Check The Operation Of The Noise Blanker . . . . . . . . . . . . . . . . . . . .4.84.5 Transmitter Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.94.5.1 Audio Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.94.5.1.1 To Check The Limiter Circuit Operation . . . . . . . . . . . . . . . . . . . . . . . . . .4.94.5.1.2 To Check The Audio ALC Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.94.5.1.3 To Check The Gain Of The Audio Processor . . . . . . . . . . . . . . . . . . . . . .4.104.5.2 Modulation Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.104.5.2.1 To Check The Above Limiting Response . . . . . . . . . . . . . . . . . . . . . . . . .4.104.5.2.2 To Check The Below Limiting Response . . . . . . . . . . . . . . . . . . . . . . . . .4.104.5.3 To Check The RF Power Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . .4.11+ 335.1 Servicing Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.25.2 Visual Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.25.3 Component Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.25.3.1 Transistor Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.25.3.2 Integrated Circuit (IC) Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.25.4 DC Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.35.5 Receiver RF Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.45.5.1 VCO Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.45.5.2 Control Line Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.45.5.3 RF Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.55.6 Transmitter RF Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.55.7 Trunked Radios: System Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.65.7.1 Base Station Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.65.7.1.1 T2030 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.65.7.1.2 T2040 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.65.7.2 Base Station Control Channel Hunt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.65.8 Trunked Radios: Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.75.8.1 Test Mode Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.75.8.2 Manual Test Mode (MTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.75.8.2.1 T2030 & T2035 MTM Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.8

 5.8.2.2 T2040 & T2050 MTM Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.95.8.3 Computer Controlled Test Mode (CCTM). . . . . . . . . . . . . . . . . . . . . . . . .5.95.8.3.1 CCTM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.105.8.3.2 CCTM Protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.105.8.4 Power-Up State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.115.8.5 Test Facilities Available. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.115.8.5.1 Resetting The Radio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.115.8.5.2 Test Facilities Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.125.8.6 Trunked Radios: Radio Mode/Status Display Codes . . . . . . . . . . . . . .5.155.9 Options Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.175.10 Fault Finding Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.205.10.1 Radio Won’t Switch On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.215.10.2 Radio Won’t Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.225.10.3 Synthesiser Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.235.10.4 Receiver Front End Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.245.10.5 Receiver IF Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.255.10.6 Receiver Mute Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.265.10.7 No Audio On Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.275.10.8 Transmitter RF Low Power Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.285.10.9 Transmitter Power Control Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.305.10.10 Transmit Audio Absent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.315.10.11 Trunked Radios: Radio Won’t Acquire A Control Channel . . . . . . . . .5.32- 4!56.1 Tuning Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.26.2 Tuning & Adjustment Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.36.3 Trunked Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.56.4 Transmitter Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.56.4.1 Power Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.56.4.2 TCXO Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.66.4.3 Dual Point Modulation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.66.4.4 CTCSS Modulation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.76.4.5 LTR Code Deviation Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.76.4.6 Modulation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.76.4.7 Selcall Tone Deviation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.86.4.8 FFSK Adjustment (Trunked Models Only) . . . . . . . . . . . . . . . . . . . . . . . .6.86.4.8.1 T203X Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.86.4.8.2 T2040 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.86.5 Receiver Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.96.5.1 RF Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.96.5.2 Internal Mute Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.106.5.3 RSSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.106.5.3.1 ‘L’ Level Set-Up (Trunked Radios Only) . . . . . . . . . . . . . . . . . . . . . . . . .6.10

". )6$7.1 T2000-100 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01331-02 . . . . . . . . . . . . . 7.1.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.1.4Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.1.5PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.1.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.1.8Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.1.97.2 T2000-200 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01202-10 . . . . . . . . . . . . . 7.2.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.2.4Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.2.5PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.2.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.2.8Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.2.97.3 T2000-300 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01314-01 . . . . . . . . . . . . . 7.3.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.3.4Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.3.5PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.3.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.3.8Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.3.97.4 T2000-400 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01204-11 . . . . . . . . . . . . . 7.4.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.4.4Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.4.5PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.4.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.4.8Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.4.97.5 T2000-500/-600 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01205-14 . . . . . . . . . . . . . 7.5.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.5.6Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.5.7PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.5.9PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.5.10Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.5.117.6 T2000-700/-900 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01289-02 . . . . . . . . . . . . . 7.6.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.6.4Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.6.5PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.6.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.6.8Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . . 7.6.9

+7.7 T2000-800 RF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01305-03 . . . . . . . . . . . . . 7.7.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.7.4Grid Reference Index . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.7.5PCB Layout - Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.7.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.7.8Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.7.97.8 T2000 IF PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01384-00 . . . . . . . . . . . . . 7.8.1PCB Layout - Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.8.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.8.4Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.8.57.9 T2000 TCXO/TX Audio PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01389-00 . . . . . . . . . . . . . 7.9.1PCB Layout - Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.9.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.9.4Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.9.57.9 T2000 TCXO/TX Audio PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01389-02 . . . . . . . . . . . . . 7.9.7PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . 7.9.9PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . 7.9.10Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . .7.9.117.10 T2010 & T2015 HC05 Logic PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01377-01 . . . . . . . . . . . . 7.10.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . 7.10.4Grid Reference Index . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . 7.10.5PCB Layout - Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . 7.10.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . 7.10.8Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . 7.10.97.10 T2010 & T2015 HC05 Logic PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01377-02 . . . . . . . . . . . .7.10.11Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.14Grid Reference Index . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.15PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.17PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.18Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.197.10 T2010 & T2015 HC05 Logic PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IPN 220-01377-03 . . . . . . . . . . . 7.10.21Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.24Grid Reference Index . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.25PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.27PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.28Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . 7.10.29

-7.11 T2020, T203X, T2040, T2050 & T2060 HC11 Logic PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01344-02 . . . . . . . . . . . . 7.11.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.11.4Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.10.5PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.11.7PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.11.8Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.11.97.11 T2020, T203X, T2040, T2050 & T2060 HC11 Logic PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01344-04 . . . . . . . . . . . 7.11.13Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . 7.11.16Grid Reference Index. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . 7.10.17PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . 7.11.19PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . 7.11.20Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . 7.11.217.12 T2010 & T2030 Control Head PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01331-02 . . . . . . . . . . . . 7.12.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.12.2PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.12.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.12.4Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.12.57.13 T2015 & T2060 Control Head PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01320-01 . . . . . . . . . . . . 7.13.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.13.2PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.13.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.13.4Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.13.57.14 T2020, T2040 & T2050 Control Head PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01321-04 . . . . . . . . . . . . 7.14.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.14.3PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.14.5PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.14.6Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.14.77.15 T2035 Control Head PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01322-03 . . . . . . . . . . . . 7.15.1Mechanical & Miscellaneous Parts . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.15.2PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.15.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.15.4Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.15.57.16 T2000 EMC Filter PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01383-01 . . . . . . . . . . . . 7.16.1PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.16.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.16.4Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.16.57.17 T2000 Data Interface Decoupling PCBParts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPN 220-01388-01 . . . . . . . . . . . . 7.17.1PCB Layout - Top. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.17.3PCB Layout - Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.17.4Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ". . . . . . . . . . . . . . . . . . . . 7.17.5

./ !##8.1 T2008 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.18.1.1 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.28.1.2 Performance Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.38.1.3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.58.1.4 Circuit Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.68.1.5 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.88.1.6 Introduction To Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.108.1.7 Setting Up The Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.128.1.8 Fault Finding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.148.1.9 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.158.1.10 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.178.2 Connection To External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2.18.2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2.18.2.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2.18.2.3 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2.28.2.4 T2010 & T2015 BCD Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2.28.3 T2000-500 & T2000-600 1-7W Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.18.3.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.28.3.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.28.3.3 Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.48.3.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.48.4 T2000-05 Remote Speaker Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.18.4.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.18.4.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.18.5 T2000-06 Desktop Microphone Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5.18.5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5.18.5.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5.18.5.3 T2000-06 Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5.18.5.4 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5.28.6 T2000-07 DTMF Microphone Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6.18.6.1 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6.18.6.2 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6.18.6.3 T2000-07 Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6.18.7 T2000-34 Selcall Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7.18.7.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7.28.7.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7.28.7.3 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7.38.8 T2000-36 Selcall Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8.18.8.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8.28.8.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8.28.8.3 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8.48.9 T2000-40 DTMF Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.9.18.9.1 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.9.18.9.2 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.9.1

/8.10 T2000-A450X CTCSS & Scrambler Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10.18.10.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10.28.10.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10.28.10.3 T2000-A450X Link Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10.38.10.4 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10.58.11 T2000-50 Handsfree Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.18.11.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.28.11.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.28.11.3 Fitting The Complete Unit In The Vehicle . . . . . . . . . . . . . . . . . . . . . . 8.11.38.11.4 T2000-50 Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.58.11.5 Signal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.78.11.6 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.88.11.7 Circuit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.88.11.8 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.108.12 T2000-60 Dual Port UART Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.18.12.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.28.12.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.38.12.3 T2000-60 Link Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.48.12.4 T2000-60 Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.58.12.5 Signal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.78.12.6 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.98.13 T2000-A66 Single Port UART Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13.18.13.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13.28.13.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13.28.13.3 Signal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13.38.13.4 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13.48.14 T2000-80 Line Interface Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.18.14.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.28.14.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.28.14.3 Line Interface Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.48.14.4 T2000-80 Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.78.14.5 Signal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.98.14.6 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.108.14.7 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.168.14.8 Circuit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.188.14.9 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.218.15 T2000-A70 Data Modem Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.18.15.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.28.15.2 Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.28.15.3 T2000-A70 Link Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.48.15.4 Signal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.58.15.5 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.68.15.6 Circuit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.128.15.7 PCB Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.138.16 T2000-A03/-A04/-A16 Remote Loom Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.18.16.1 Components Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.28.16.2 Fitting To Locally Mounted Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.28.16.3 Fitting To Remote Mounted Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.6

00 79.1 Identifying The Software Version Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.29.2 Software History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.39.2.1 T2010 & T2015 Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.39.2.2 T2020 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.49.2.3 T2030 & T3035 Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.59.2.4 T2040 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.69.2.5 T2050 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.79.2.6 T2060 Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.8,*$Figure 2.1 T2000 TCXO/TX Audio PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . .2.4Figure 2.2 T2000 IF PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.5Figure 2.3 T2000-100 & -400 RF PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . .2.6Figure 2.4 T2000-200 RF PCB Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.8Figure 2.5 T2000-300 RF PCB Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.10Figure 2.6 T2000-500, -600, -700, -900 & -000 RF PCB Block Diagram . . . . . . . . . .2.12Figure 2.7 T2000-800 RF PCB Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.14Figure 2.8 T2010 & T2030 Control Head Block Diagram . . . . . . . . . . . . . . . . . . . . .2.17Figure 2.9 T2015 & T2060 Control Head Block Diagram . . . . . . . . . . . . . . . . . . . . .2.17Figure 2.10 T2020, T2040 & T2050 Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.18Figure 3.1 Anti-Static Bench Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.2Figure 3.2 Screwdriver Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3Figure 3.3 T2000 Series II Radio Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.4Figure 3.4 T2010, T2015 & T203X Control Head Assembly . . . . . . . . . . . . . . . . . . . . 3.7Figure 3.5 T2020, T2040 & T2050 Control Head Assembly - Locally Mounted. . . .3.9Figure 3.6 T2020, T2040 & T2050 Control Head Assembly - Remotely Mounted.3.10Figure 3.7 EMC Filter PCB Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.11Figure 3.8 Identifying SMD Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.14Figure 3.9 SMD Soldering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.16Figure 4.1 Suggested Test Equipment Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.3Figure 5.1 RF Test Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5Figure 6.1 RF & TXCO/Tx Audio PCBs - Tuning & Adjustment Points . . . . . . . . .6.4Figure 6.2 Receiver Tuning Amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.9Figure 8.1.1 T2008 Float Charging Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . 8.1.9Figure 8.1.2 T2008 Typical Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.15Figure 8.3.1 T2000-500/600 PA - Top Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.2Figure 8.3.2 T2000-500/600 PA - Bottom Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.3Figure 8.3.3 T2000-500/600 PA - Bottom Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.3Figure 8.4.1 T2000 Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.2Figure 8.7.1 T2000-34 Selcall PCB Mounting - T2010 & T2015 Logic PCB . . . . . . . 8.7.3Figure 8.8.1 T2000-36 Selcall PCB Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8.2Figure 8.10.1 T2000-A450X PCB Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10.2Figure 8.11.1 T2000-50 Handsfree PCB Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.2Figure 8.11.2 T2000-50 Test Equipment Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11.5

1Figure 8.11.3 T2000-50 9 Way D-Range Connector (S21). . . . . . . . . . . . . . . . . . . . . . 8.11.7Figure 8.12.1 T2000-60 UART PCB Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.3Figure 8.12.2 T2000-60 Test Equipment Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12.5Figure 8.12.3 T2000-60 15 Way D-Range connector (S21) . . . . . . . . . . . . . . . . . . . . . 8.12.8Figure 8.13.1 T2000-A66 Single Port UART PCB Mounting . . . . . . . . . . . . . . . . . . . 8.13.3Figure 8.13.2 9 Way D-Range Connector (SKT1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13.3Figure 8.14.1 T2000-80 Line Interface PCB Mounting (T2010/T2015 shown) . . . . 8.14.2Figure 8.14.2 T2000-80 Test Equipment Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14.7Figure 8.14.3 T2000-80 15 Way D-Range connector (S21) . . . . . . . . . . . . . . . . . . . . . 8.14.9Figure 8.14.4 T2000-80 Line Interface PCB Block Diagram . . . . . . . . . . . . . . . . . . . 8.14.18Figure 8.15.1 T2000-A70 PCB Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.2Figure 8.15.2 T2000-A70 Data Modem PCB Mounting . . . . . . . . . . . . . . . . . . . . . . . 8.15.3Figure 8.15.3 Data Interface Decoupling PCB Mounting: Series I Chassis . . . . . . . 8.15.3Figure 8.15.4 Data Interface Decoupling PCB Mounting: Series II Chassis . . . . . . 8.15.4Figure 8.15.5 9 Way D-Range Connector (SKT1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.5Figure 8.16.1 Remote Control Head Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.3Figure 8.16.2 Connector PCB Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.4Figure 8.16.3 EMC FIlter PCB Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.4Figure 8.16.4 Dummy Front Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16.5,*Table 5.1 T2000 Test Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.13Table 5.2 Radio Mode/Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.16Table 5.3 Options Connectors - Audio Signal Specifications . . . . . . . . . . . . . . . .5.17Table 5.4 Options Connectors - Supply Voltage Specifications . . . . . . . . . . . . . .5.17Table 5.5 Options Connectors - Logic Signal Specifications . . . . . . . . . . . . . . . . .5.18Table 5.6 BCD Channel Selection (T2010 & T2015 only) . . . . . . . . . . . . . . . . . . . .5.19Table 6.1 Tuning & Adjustment Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3Table 8.15.1 Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.7Table 8.15.2 Messages To The Radio Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.8Table 8.15.3 Messages From The Radio Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.10Table 8.15.4 Software Test Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.11

 8 2$This Section introduces the T2000 Series II radio, describing models and features availa-ble and their performance.The following topics are covered in this Section:Section Title Page1.1 Introduction 1.21.2 Specifications 1.31.2.11.2.21.2.31.2.41.2.51.2.61.2.6.11.2.6.2IntroductionGeneralReceiver PerformanceTransmitter PerformanceFrequency ReferenceTrunkingT2030, T2035, T2040 & T2050 ModelsT2060 Model1.31.31.51.71.81.91.91.91.3 Operating Instructions 1.91.4 Product Codes 1.10

8 8 $#The T2000 Series II is a high performance mobile two way radio. It covers ten frequencybands between 66 and 870MHz, and is available in both trunked and conventional mod-els.Operation of the T2000 is by handheld microphone, a press-to-talk switch and a range offront panel function keys. The T2020 and T2040 models are fitted with an LCD displayand alphanumeric keypad.Most of the functions of the T2000 are microprocessor controlled. The system software isstored in a read only memory (ROM), while the data is stored in a non-volatile memoryfor ease of programming. Operational parameters can be programmed without openingthe radio, via the front panel microphone socket.The T2000 uses a synthesiser with a single VCO switched between transmit and receive.A plug-in TCXO PCB is used to provide a highly stable reference frequency, and dualpoint modulation gives a flat modulation response at the synthesiser.The standard T2000 RF power output is 25W, except in the T2000-800 which delivers15W. The receiver is electronically tuned across the entire frequency band and containsan IF noise blanker and RSSI facility. A maximum of 4W of audio is delivered to a 4Ωspeaker.The RF and logic PCBs are shielded from each other in a diecast aluminium chassis, andare connected by two plug-in looms. The T2000 top and bottom covers are also diecastaluminium.There is provision within the radio to mount option PCBs and a 9 or 15 way output con-nector which is used for options requiring connection to external equipment. Standardoptions include hands-free operation, line control interface, signalling and data trans-mission.The DC supply to the radio must be negative earth and may be between 10.8 and 16V.The T2000 is protected against reversal of the DC supply and is provided with overvolt-age protection.If further information is required about the T2000 or this Manual, it may be obtainedfrom Tait Electronics Ltd or accredited agents. When requesting this information, pleasequote the equipment product code (e.g. T2010-512-002) and serial number. In the case ofthe Service Manual, quote the product code (e.g. M2000-00-300), and for circuit dia-grams quote the ‘Title’, ‘Internal Part Number’ (IPN) and ‘Issue’.

 8 8 &##88 $#The performance figures given are typical figures, unless otherwise indicated, for equip-ment operating at standard room temperature. Where applicable, the test methods usedto obtain the following performance figures are those described in the European specifi-cation ETS 300-086.Details of test methods and the conditions which apply for type approval testing in allcountries can be obtained from Tait Electronics Ltd.88 2Modulation Type .. FMFrequency Ranges:T2000-100 .. 220 to 270MHzT2000-200 .. 66 to 88MHzT2000-300 .. 136 to 174MHzT2000-400 .. 175 to 225MHzT2000-500 .. 400 to 470MHzT2000-600 .. 450 to 520MHzT2000-700 .. 330 to 360MHzT2000-800 .. 800 to 870MHz (Tx).. 851 to 870MHz (Rx)T2000-900 .. 360 to 400MHzT2000-000 .. 500 to 530MHzFrequency Increment:All Except T2000-800 .. 5 or 6.25kHzT2000-800 .. 12.5kHzNumber Of Channels:T2010 .. 4T2015 .. 24T2020 .. 100Bandwidth .. 7.5, 12 or 15kHzSwitching Range:T2000-200 .. 22MHzT2000-300 .. 38MHzT2000-400, T2000-100 .. 50MHzT2000-500, T2000-600 .. 70MHzT2000-700 .. 30MHzT2000-800 .. 70MHz (Tx).. 19MHz (Rx)T2000-900 .. 40MHz

8" Tx/Rx Offset:T2000-200 .. 0 to 22MHzT2000-300 .. 0 to 38MHzT2000-400, T2000-100 .. 0 to 50MHzT2000-500, T2000-600 .. 0 to 70MHzT2000-700 .. 0 to 30MHzT2000-800 .. 0 to 45MHzT2000-900 .. 0 to 40MHzSupply Voltage:Operating Range .. 10.8V to 16V DCStandard Test Voltage .. 13.8V DCPolarity .. negative earthPolarity & Overvoltage Protection .. internal transorb crowbarBrown-out Recovery .. <2s to full operation following supplyfluctuations below 10.8VSupply Current:Economy Mode .. <270mA (T201X/T203X/T2060) or<350mA (T2020/T2040/T2050)Receiver:Squelched .. 320mA (T201X/T203X/T2060) or472mA (T2020/T2040/T2050)Full Audio .. 1.2ATransmit:T2000-200, -300, -400, -800 .. 6AT2000-500 .. 6.8AT2000-600 .. 7AT2000-100, -700, -900 .. 6.8AT2000-000 .. 7.5ATx/Rx Changeover Switching .. solid stateOperating Temperature Range .. -30ºC to +60ºC ambientProgramming .. clone or PC program via mic. socketAntenna:Impedance .. 50Ω (nominal)Connector .. BNC (UHF optional on VHF radios only)Power/Speaker Connector .. 7 way automotive typeOptions Connector .. 9 or 15 way high density D-range(optional)Radio Unit Dimensions:Depth .. 150mmWidth .. 150mmHeight .. 45mmFront Panel Dimensions:Depth .. 25mmWidth .. 158mmHeight .. 51mm

 8+Remote Control Head Dimensions:Length .. 26mmWidth .. 159mmHeight .. 51mmWeight (radio & control head) .. 1.2kg88 ##Type: All Except T2000-200 .. triple conversion superheterodyneT2000-200 .. dual conversion superheterodyneSensitivity:12dB Sinad .. better than -117dBm20dB Sinad (psophometric) .. better than -113dBm20dB Quieting .. better than -113dBmIF Amplifiers:Frequencies:T2000-200 .. 10.7MHz and 455kHzT2000-100, -300, -400 .. 27.7MHz, 10.7MHz and 455kHzT2000-500, -600, -700, -900, -000 .. 49.1MHz, 10.7MHz and 455kHzT2000-800 .. 61.9MHz, 10.7MHz and 455kHzFirst Local Oscillator Injection (with respect to signal):T2000-200, -300 .. high sideT2000-100, -400, -500, -600, -700, -800, .. low side-900, -000Second Local Oscillator Injection (with respect to signal):T2000-100, -300, -400 .. high sideT2000-200, -500, -600, -700, -800, -900, -000 .. low sideThird Local Oscillator Injection (with respect to signal):T2000-100, -300, -400 .. low sideT2000-500, -600, -700 -800, -900, -000 .. low sideBandwidth:Narrow Band .. 7.5kHzMedium Band .. 12kHzWide Band .. 15kHzSignal-to-Noise Ratio (with respect to 100% deviation, at RF level of -47dBm):Narrow Band .. 45dBMedium Band .. 48dBWide BandAll Except T2000-800 .. 50dBT2000-800 .. 45dB

8- Audio:Minimum Load Impedance .. 2ΩRated Power (into 4Ω) .. 4W (at 1kHz)Distortion:@ Rated Power (1kHz) .. <5%@ 0.5W (0.3 to 3.0kHz) .. <3% (narrow band)<2.5% (medium band)<2% (wide band)Response .. within +1, -3dB of 6dB/octavede-emphasisBandwidth .. 300Hz to 3kHzSelectivity .. better than 70dBSpurious Response AttenuationAll Except T2000-000, -800 .. 75dB (80dB EIA)T2000-000 .. 60dBT2000-800 .. 70dB (70dB EIA)Intermodulation Response Attenuation .. 66dB (75dB EIA)Spurious Emissions .. better than -57dBm(conducted & radiated to 1GHz)Spurious Emissions .. better than -47dBm(conducted & radiated 1 to 4GHz)Blocking .. better than -23dBmCo-channel Rejection:Narrow Band .. better than 9dBMedium Band .. better than 7dBWide Band .. better than 6dBGroup Delay .. ±50µs (300Hz to 3kHz)Squelch:Preset Level .. 11dB sinadRatio .. >70dBVoting Levels .. >20dB sinad(applies to T2020 only)

 8.88" #Power Output:Maximum:All Except T2000-800 .. 30WT2000-8000 .. 25WHigh (high setting):All Except T2000-800 .. 25WT2000-8000 .. 15W. Low (low setting):T2000-200, -300, -400 .. 1 to 25WT2000-100, -500, -600, -700, -900 .. 5 to 25WT2000-800 .. 5 to 15WLow Power Version .. 1 to 7W (T2000-500, -600)Duty Cycle (33%) .. 2 minutes Tx, 4 minutes RxLock Up Time (synthesiser) .. 25ms (from PTT to 90% output powerwithin 2kHz, not including micro.delay)Spurious Emissions .. better than -36dBm(conducted & radiated to 1GHz)Spurious Emissions .. better than -30dBm(conducted & radiated to 1 to 4GHz)Adjacent Channel Power:Narrow Band .. better than -65dBcMedium Band .. -70dBcWide Band .. -80dBcGroup Delay .. +200/-50µs (300Hz to 3kHz)Modulation System:Type .. direct FMDeviation Limiting:Narrow Band .. ±2.5kHz (peak) max.Medium Band .. ±4kHz (peak) max.Wide Band .. ±5kHz (peak) max.Bandwidth:Narrow Band .. 300Hz to 2.55kHz below limiting or450Hz to 2.55kHz in limitingMedium & Wide Band .. 300Hz to 3kHz below limiting or450Hz to 3kHz in limitingResponses:In Limiting .. within +0dB, -4dB of maximumsystem deviationBelow Limiting .. within +1, -3dB of 6dB/octavepre-emphasisAbove 3kHz .. greater than 25dB/octave roll-off

8/ Audio:Microphone Type .. dynamic or electretInput For 60% Deviation .. 1.5mVrms maximum (at 1kHz)Distortion .. 5%Hum & Noise:All Except T2000-800:Narrow Band .. 39dBMedium Band .. 43dBWide Band .. 45dBT2000-800:Wide Band .. 40dBMismatch Capability:Ruggedness .. 2 minutes transmission into infiniteVSWRStability .. VSWR 5:1 (all phase angles)Transmit Timer (non-trunking models) .. programmable up to 4 minutes, orcontinuous.88+ 3(##Oscillator Frequency .. 12.8MHzCrystal Stability And Source Details .. see table below:*. Not fitted to T2000-200 due to low modulatibility.†. Fitted only to 400MHz versions and above, due to low modulatibility.Product Code Frequency Tolerance(ppm) Temperature Range (ºC) Frequency SourceT2XX-XX1±5 -10 to +60 TE/45 xtalT2XX-XX3*±3 -30 to +60 VXO-2605A ModuleT2XX-XX5±2.5 -30 to +60 VXO-2605A-1 Module†T2XX-XX6±2.0 -30 to +60 TDC 60281 Module†

 8088- 988-8 1 1:1 +:1"141+1Data Modulation .. as per MPT1317Data Deviation (Tx: 60% full system deviation):Narrow Band .. 1.5kHzMedium Band .. 2.4kHzWide Band .. 3kHz88-8 1-1System .. LTR® trunked1, systems x groups = 24Data Deviation (Tx) .. 1kHz8 *&$#Refer to the User’s Guide supplied with the radio. These are also available separatelyunder the following IPNs:T2010/T2015 459-20100-0XT2020 459-20200-0XT2030/T2035 459-20300-0XT2040 459-20400-0XT2060 459-20600-0XComprehensive Operator’s Manuals are also available for T2020 and T2040 radios.These Manuals cover such topics as advanced user operations and the use of trunkedradios for data applications. These are available under the following IPNs:T2020 409-20200-0XT2040 409-20400-0X1. LTR is a trademark of E F Johnson & Co.

81 8" #)The 3 groups of digits in a T2000 product code provide information about the radio’smodel, RF type and options fitted, according to the conventions described below.The following explanation of the T2000 product codes is not intended to suggest thatany combination of features is necessarily available in any one radio. For details regard-ing availability of specific T2000 radios, consult your nearest Tait dealer or subsidiary.The Model group indicates the basic features of the radio, as follows:T20XX-XXX-XXX T2010 4 channelsT2015 24 channelsT2020 100 channelsT2030 4 calls, all preset trunkedT2035 1000 calls, including 20 preset trunkedT2040 dialled calls trunkedT2050 dual mode T2040 or T2020 operation trunked, non-trunkedT2060 LTR®, systems x groups = 24 trunked3&RF Type group uses 3 digits to indicate the basic RF configuration of the radio.The first digit in the RF Type group designates frequency band.T20XX-XXX-XXX ‘1’ for 220 to 270MHz‘2’ for 66 to 88MHz‘3’ for 136 to 174MHz‘4’ for 175 to 225MHz‘5’ for 400 to 470MHz‘6’ for 450 to 520MHz‘7’ for 330 to 360MHz‘8’ for 800 to 870MHz transmit851 to 870MHz receive‘9’ for 360 to 400MHz‘0’ for 500 to 530MHzThe second digit in the RF Type group designates radio IF bandwidth.T20XX-XXX-XXX ‘1’ for wide band (15kHz)‘2’ for narrow band (7.5kHz)‘3’ for medium band (12.5kHz)The third digit in the RF Type group designates frequency stability.T20XX-XXX-XXX refer to “Frequency Reference” on page 1.8.*&T20XX-XXX-XXX The third group of digits covers a wide range of software and mar-ket specific options. The large number of options and their frequentchanges preclude listing them here.

 8 )##&This Section describes the operation of the basic circuit blocks found in the T2000 radio.Refer also to the circuit diagrams in Section 7 of this Manual.The following topics are covered in this Section:Section Title Page2.1 Design Overview 2.22.2 Synthesiser 2.32.3 Audio & Regulators 2.42.4 TCXO/TX Audio PCB 2.42.5 IF PCB 2.52.6 T2000-100 & -400 RF PCB 2.62.6.12.6.22.6.3T2000-100 & -400 ReceiverT2000-100 & -400 ExciterT2000-100 & -400 Power Amplifier2.62.72.72.7 T2000-200 RF PCB 2.82.7.12.7.22.7.3T2000-200 ReceiverT2000-200 ExciterT2000-200 Power Amplifier2.82.92.92.8 T2000-300 RF PCB 2.102.8.12.8.22.8.3T2000-300 ReceiverT2000-300 ExciterT2000-300 Power Amplifier2.102.112.112.9 T2000-500, T2000-600, T2000-700, -900 & -000 RF PCB 2.122.9.12.9.22.9.3T2000-500, -600, -700, -900 & -000 ReceiverT2000-500, -600, -700 -900 & -000 ExciterT2000-500, -600, -700, -900 & -000 Power Amplifier2.122.132.132.10 T2000-800 RF PCB 2.142.10.12.10.22.10.2T2000-800 ReceiverT2000-800 ExciterT2000-800 Power Amplifier2.142.152.152.11 Control Module 2.162.11.12.11.2 T2010 & T2015 HC05 Logic PCBT2020, T203X, T2040, T2050 & T2060 HC11 Logic PCB 2.162.19

8 8 *7The T2000 radio is made up of two modules, the RF module and the control module.The RF module consists of an RF PCB unique to each frequency band with commonplug-in IF and TCXO/Tx audio PCBs, determining the frequency stability and referencefrequency. The control module consists of a logic PCB and a control head PCB. Each con-trol module is unique to each T2000 model, i.e. T2010, T2015, T2020, T203X, T2040 orT2050.The following circuit blocks are located in the RF module:• The synthesiser, containing the- Tx/Rx VCO- plug-in TCXO and Tx audio PCB- Tx/Rx switching.• The regulators and audio power amplifier.• The receiver, containing the- front end- mixer- noise blanker- mute circuit- RSSI- plug-in IF PCB.• The exciter, RF power amplifier and power control circuit.The following circuit blocks are located in the control module:• The microprocessor control circuitry.• Audio processing.• Control head.• Options connectors (refer to Section 5.9, “Options Interface Specifications”).

 8 8 Synthesiser IC201 (MC145158) receives channel and reference frequency informationfrom the microprocessor via a three line serial interface:• DATA - synthesiser data: A counter: 7 bitsM counter: 10 bitsRef. counter: 14 bits• CLK - synthesiser clock• ENABLE - synthesiser latch.Once the data has been latched in, the synthesiser IC processes the incoming signals; finfrom the prescaler IC and fref from the temperature compensated crystal oscillator(TCXO) operating at 12.8MHz. The TCXO signal is divided by the reference counter toprovide 5kHz, 6.25kHz or 12.5kHz at the phase detector. IC201 generates the moduluscontrol at the appropriate time to change the dividing factor for the prescaler. The phasedetector outputs are summed and fed via the integrator to the control line. The VCO fre-quency increases with a positive change in control line voltage.The synthesiser produces a signal called LCK-DET which is fed to the exciter after someprocessing to prevent transmission when the synthesiser is out of lock. The LCK-DETsignal is also fed to the I/O bus of the control circuitry, where the signal is used for fea-tures such as scanning. The time lapse between the synthesiser latch pulse and the lockdetect line going low is typically 15ms (maximum is 20ms).The T2000 uses a dual point modulation system which allows the radio to be modulatedat frequencies below the loop filter cut-off frequency (approximately 400Hz). In this sys-tem, modulation is supplied to both the VCO and TCXO. When both the reference andVCO are modulated below the cut-off frequency of the loop filter, the phase detectorcannot detect a difference between fin, and fref and will not generate corrective signals.The modulation bandwidth is therefore dependent only on the audio and coupling cir-cuits.

8" 8 !4The nominal supply voltage of the T2000 is 13.8VDC but satisfactory operation is possi-ble from supply voltages of between 10.8 and 16V. Power for the radio is switched viathe volume control and switch on the control head.Overvoltage protection is provided in the form of an 18V zener diode. This will sup-press transient spikes but prolonged overvoltage will cause the device to fail short cir-cuit.On the RF PCB, two regulated power supply rails of 8V and 5V are provided as well asa 30V supply from an inverter. The 30V supply is used to feed the synthesiser loop filterand the receiver front end tuning. A switched 8V line is used to enable the transmitterand disable the receiver.13.8V is applied directly to the RF and audio power amplifiers, with the audio poweramplifier rated for a standard output of 4Wrms into 4Ω, at a nominal supply voltage of13.8V.8" );*;!)6The TCXO/Tx audio PCB provides the temperature compensated 12.8MHz referencefrequency for the synthesiser and a times-three multiplier in the receiver. The PCB alsocontains the Tx audio limiter, deviation level potentiometer and low pass filter. TheTCXO fine frequency adjustment is provided by a ten turn potentiometer. Narrow orwide band deviation and TCXO frequency stability with temperature are determinedsolely by this PCB.

 8+8+ $3)6The l0.7MHz signal from the RF PCB feeds Q104, passes through a crystal filter (Xl0l)and is amplified by Q111 and Q112 before passing through a 10.7MHz ceramic filter to amixer/oscillator (Qll3). This 455kHz mixer output is further filtered and amplified byCF102, CF103 and Q114, then passes back to the RF PCB where it is demodulated byIC101. The RSSI function is internal to IC101.The demodulated signal is filtered and compensated on the IF PCB before passing to thelogic PCB via the RF PCB. Narrow band or wide band response is determined solely bythe IF PCB.The processed transmit audio passes to the RF PCB where it is split into a VCO modula-tion path and a TCXO modulation path. The TCXO path passes through a potentiome-ter to enable the dual point modulation to be correctly adjusted, and then returns to theTCXO/Tx audio PCB.

8- 8- 111114"113)68-8 111114"11#The incoming signal from the antenna via the PIN switch passes through a high pass fil-ter to the RF amplifier, Q101. The 50Ω output from the amplifier is coupled to a varicaptuned triplet which provides the spurious response rejection necessary for the firstmixer. An attenuator is provided at the output to allow for fine adjustment of the frontend gain.The VCO output is fed to the first double balanced mixer via a low pass filter to reduceharmonic content. The VCO signal is 27.7MHz below the RF signal and the first mixeroutput (at 27.7MHz) feeds the first post-mixer buffer, Q103. The output of Q103 feedsboth a delay line and the noise blanker circuit.

 8.L114 and L116 form a 50Ω delay line which provides the spurious response rejectionnecessary for the second mixer. L114 and L116 also provide the delay necessary for thenoise blanker to detect and clamp noise pulses. The local oscillator signal of 38.4MHzfor the second double balanced mixer is provided by the 12.8MHz reference via a triplercircuit, and the 10.7MHz output feeds the plug-in IF PCB. Each sub-block within thefront end has been designed with 50Ω terminations for ease of testing and fault finding.8-8 111114"11'<#The VCO output from the PIN switch is amplified to 900mW by a two stage broad bandexciter (Q301 and Q302) with approximately 22dB of gain. Q301 is operating into com-pression to prevent changes in VCO drive affecting output power.This output power is controlled by varying the collector voltage on Q302, via Q303,Q304 and the feedback loop from the PA. The power settings (maximum, high and low)are under microprocessor control and are set for each channel by programming.R308, R309, R310 and R313 form a 2dB attenuator, reducing the output to approximately550mW and also providing good isolation between the exciter and PA.8-8 111114"117!&The 550mW exciter output is amplified to 30W by Q305 and Q306. Q305 has a smallamount of bias applied (via R319, D302, R322 and R315) to provide stability at lowpower levels.The T2000-100 power amplifier has no tuning, and when the output power is set to 25Wthe variation across the 50MHz switching range should be less than ±2W.The high level RF signal passes via the Tx/Rx PIN switch, the low pass filter and direc-tional coupler to the antenna connector. The power level is sensed by D301 on the direc-tional coupler and this voltage is fed back to the power control operational amplifier viaRV324. RV324 on the RF PCB sets the high power and RV507 on the logic PCB willadjust the low power.

8/ 8. 111113)68.8 11111#The incoming signal from the antenna via the PIN switch passes through a high pass fil-ter to the RF amplifier, Q101. The 50Ω output from the amplifier is coupled to a varicaptuned triplet that provides the spurious response rejection necessary for the first mixer.An attenuator is provided at the output to allow for fine adjustment of the front endgain.The VCO output is fed to the first double balanced mixer via a low pass filter to reduceharmonic content. The VCO signal is 10.7MHz above the RF signal and the first mixeroutput (at 10.7MHz) feeds the first post-mixer buffer, Q103. The output of Q103 feedsboth a delay line and the noise blanker circuit.

 80L114 and L116 form a 50Ω delay line that provides the delay necessary for the noiseblanker to detect and clamp noise pulses and also provides a high impedance point forthe signal to be clamped.The 10.7MHz output feeds the plug-in IF PCB through R128, R129 and R132 which pro-vide the attenuation equivalent to the second mixer of the T2000-300, T2000-400, T2000-500 or T2000-600.Each sub-block within the front end has been designed with 50Ω terminations for easeof testing and fault finding.8.8 11111'<#The VCO output from the PIN switch is amplified to 500mW by a two stage broad bandexciter (Q301 and Q302) with approximately 2ldB of gain. Q301 is operating into com-pression to prevent changes in VCO drive affecting output power. This output power iscontrolled by varying the collector voltage on Q302, via Q303, Q304 and the feedbackloop from the PA. The power settings (maximum, high and low) are under microproces-sor control and are set for each channel by programming. R308A, R308, R309 and R310provide approximately 1dB of attenuation and isolation between the exciter and poweramplifier.8.8 111117!&The 500mW exciter output is amplified to 30W by Q305 and Q306. The T2000-200 poweramplifier has no tuning, and when the output power is set to 25W the variation acrossthe 22MHz switching range should be less than ±2W.The high level RF signal passes via the Tx/Rx PIN switch, the low pass filter and thedirectional coupler to the antenna connector. The power level is sensed by D301 on thedirectional coupler and this voltage is fed back to the power control operational ampli-fier via RV324. RV324 on the RF PCB sets the high power and RV507 on the logic PCBwill adjust the low power.

81 8/ 111 113)68/8 111 11#The incoming signal from the antenna via the PIN switch passes through a high pass fil-ter to the RF amplifier, Q101. The 50Ω output from the amplifier is coupled to a varicaptuned triplet which provides the spurious response rejection necessary for the firstmixer. An attenuator is provided at the output to allow for fine adjustment of the frontend gain.The VCO output is fed to the first double balanced mixer via a low pass filter to reduceharmonic content. The VCO signal is 27.7MHz above the RF signal and the first mixeroutput (at 27.7MHz) feeds the first post-mixer buffer, Q103. The output of Q103 feedsboth a delay line and the noise blanker circuit.

8 80 111+11:111-11:111.11:01141113)6808 111+11:-11:.11:0114111#The incoming signal from the antenna via the PIN switch passes through a high pass fil-ter to the RF amplifier, Q101. The 50Ω output from the amplifier is coupled to a varicaptuned triplet which provides the spurious response rejection necessary for the firstmixer. An attenuator is provided at the output to allow for fine adjustment of the frontend gain.

 8 The VCO output is fed to the first double balanced mixer via a low pass filter to reduceharmonic content. The VCO signal is 49.lMHz below the RF signal and the first mixeroutput (at 49.lMHz) feeds the first post-mixer buffer, Q103. The output of Q103 feedsboth a delay line and the noise blanker circuit.L114 and L116 form a 50Ω delay line which provides the spurious response rejectionnecessary for the second mixer. L114 and L116 also provide the delay necessary for thenoise blanker to detect and clamp noise pulses. The local oscillator signal of 38.4MHzfor the second double balanced mixer is provided by the 12.8MHz reference via a triplercircuit, and the 10.7MHz output feeds the plug-in IF PCB. Each sub-block within thefront end has been designed with 50Ω terminations for ease of testing and fault finding.808 111+11:-11:.110114111'<#The VCO output from the PIN switch is amplified to 2W by a three stage broad bandexciter (Q300, Q301 and Q302) with approximately 28dB of gain. The first stage (Q301 inthe T2000-500/600, and Q300 in the T2000-700) operates into compression to preventchanges in VCO drive affecting output power.This output power is controlled by varying the collector voltage on Q300, via Q303,Q304 and the feedback loop from the PA. The power settings (maximum, high and low)are under microprocessor control and are set for each channel by programming.808 111+11:-11:.11:01141117!&The 2W exciter output is amplified to 30W by Q305 and Q306. The T2000-500/600/700power amplifier has no tuning, and when the output power is set to 25W the variationacross the switching range should be less than ±2W.The high level RF signal passes via the directional coupler, the Tx/Rx PIN switch andthe low pass filter to the antenna connector. The power level is sensed by D301 on thedirectional coupler and this voltage is fed back to the power control operational ampli-fier via RV324. RV324 on the RF PCB sets the high power and RV507 on the logic PCBwill adjust the low power.

8" 81 111/113)6818 111/11#The incoming signal from the antenna via the PIN switch passes through a band passfilter to the RF amplifier, Q101. The 50Ω output from the amplifier is coupled to a sec-ond band pass filter, and these two filters provide the spurious response rejection neces-sary for the first mixer. An attenuator is provided at the output to allow for fineadjustment of the front end gain.The VCO output is fed to the first double balanced mixer via a low pass filter to reduceharmonic content. The VCO signal is 61.9MHz below the RF signal and the first mixeroutput (at 61.9MHz) feeds the first post-mixer buffer, Q103. The output of Q103 feeds aband pass filter.

 8+L114 and L116 form a 50Ω band pass filter which provides the spurious response rejec-tion necessary for the second mixer. The local oscillator signal of 51.2MHz for the sec-ond double balanced mixer is provided by the 12.8MHz reference via a times 4multiplier circuit, and the 10.7MHz output feeds the plug-in IF PCB.Each sub-block within the front end has been designed with 50Ω terminations for easeof testing and fault finding.818 111/11'<#The VCO output from the PIN switch is amplified to 0.5W by a three stage broad bandexciter (Q300, Q301 and Q302) with approximately 21dB of gain. Q300 is operating intocompression to prevent changes in VCO drive affecting output power.This output power is controlled by varying the voltage on IC405 pin2, via Q303, Q304and the feedback loop from the PA. The power settings (maximum, high and low) areunder microprocessor control and are set for each channel by programming.818 111/117!&The 0.5W exciter output is amplified to 20W by IC405. The T2000-800 power amplifierhas no tuning, and when the output power is set to 15W the variation across the 70MHzswitching range should be less than ±1W.The high level RF signal passes via the directional coupler, the Tx/Rx PIN switch andthe low pass filter to the antenna connector. The power level is sensed by D301 on thedirectional coupler and this voltage is fed back to the power control operational ampli-fier via RV324. RV324 on the RF PCB sets the high power and RV507 on the logic PCBwill adjust the low power.

8- 8 )The primary task of the control section in the T2000 is to control the state of the radio atall times, based both on user input, and activity of the internal circuitry. To achieve this,the control section monitors the radio’s operation and responds to any changes withvarious control signals.The input shift registers are read by the microprocessor approximately 100 times persecond. The output shift registers are updated only when a control signal is required tochange, and the miscellaneous I/O is continually scanned.In the majority of cases, a control output will change only in response to an input stimu-lus, e.g. a control head key being pressed, receiver busy, etc. Some outputs may beaffected by more than one input or a sequence of events; this is particularly so in thecase of the mute gate control line. Its operation may be affected by a number of externalconditions and even some generated in the microprocessor.For operation of the T2000 Series II control heads, refer to Figures 2.8 to 2.10.88 1141+=)1+,#)6Transmitter speech from the microphone is preamplified and fed into an automatic levelcontrol circuit which also has two mute facilities (one for options and one for the micro-processor). The speech is pre-emphasised and high pass filtered to reduce CTCSS com-ponents, then passes via the RF PCB to the limiter on the TCXO/Tx audio PCB.DCS/CTCSS signals are generated by the microprocessor and are filtered by a low passfilter before being passed to the level potentiometer on the TCXO/Tx audio PCB. A fivetone Selcall module is available which is directly interfaced to the microprocessor.Selcall tones are fed to the limiter on the TCXO/Tx audio PCB.Receiver audio from the IF PCB passes through a low pass filter where it is split into sig-nalling and speech paths. Five tone signals are coupled to the five tone module. DCS/CTCSS passes through a low pass filter and limiter before arriving at the microproces-sor. Speech is de-emphasised and passed through one or two high pass filters, depend-ing on the signalling used. Processed speech passes through the mute to an amplifierwhere speech and progress tones are summed. The signal then passes via the volumecontrol to the audio power amplifier on the RF PCB.

 8088 11:1 ;:1"1:1+141-1=),#)6Transmitter speech from the microphone is preamplified and fed into an automatic levelcontrol circuit which also has three mute facilities (one for options and two for themicroprocessor). The speech is pre-emphasised and high pass filtered to reduce CTCSScomponents. The speech passes via the RF PCB to the limiter on the TCXO/Tx audioPCB.The FFSK modem tones pass through a level potentiometer before being fed to the lim-iter on the TCXO/Tx audio PCB. DCS/CTCSS signals are generated by the microproces-sor and are filtered by a low pass filter before being passed to the level potentiometer onthe TCXO/Tx audio PCB. Five tone Selcall and DTMF modules are both available to directly interface to themicroprocessor. Selcall tones are fed to the limiter on the TCXO/Tx audio PCB andDTMF tones are summed at the automatic level control.Receiver audio from the IF PCB passes through a low pass filter where it is split into sig-nalling and speech paths. Five tone signals are coupled to the five tone module. DCS/CTCSS passes through a low pass filter and limiter before arriving at the microproces-sor. FFSK modem signals pass through a buffer amplifier before the modem input.Speech is de-emphasised and passed through one or two high pass filters, depending onwhat signalling is used. Processed speech passes through the mute to an amplifierwhere speech and progress tones are summed. The signal then passes via the volumecontrol to the audio power amplifier, on the RF PCB.

 8 This Section provides information necessary for servicing T2000 Series II radios, andcovers the following topics:Section Title Page3.1 Servicing Precautions 3.23.1.13.1.23.1.33.1.43.1.5Caution: Accidental TransmitCaution: Antenna LoadingCaution: Beryllium Oxide & Power TransistorsCaution: CMOS DevicesCaution: Screw Head Types3.23.23.23.23.33.2 Disassembly Instructions 3.53.2.13.2.23.2.33.2.3.13.2.3.23.2.43.2.4.13.2.4.23.2.53.2.6To Gain Access To The Logic PCBTo Remove The Bottom Cover And Microprocessor ShieldTo Detach The Control HeadLocally Mounted ModelsRemotely Mounted ModelsTo Disassemble The Control HeadT2010, T2015, T203X & T2060 RadiosT2020, T2040 & T2050 RadiosTo Detach The EMC Filter PCBTo Remote A Locally Mounted T2020, T2040 & T20503.53.53.63.63.63.73.73.93.113.113.3 Power Amplifier - Special Instructions 3.123.3.13.3.2 To Replace PA TransistorsTo Remove Case Mica Capacitors 3.123.123.4 Repair 3.133.4.13.4.1.13.4.1.23.4.1.33.4.1.43.4.23.4.2.13.4.2.2Surface Mount DevicesSurface Mount Device (SMD) PrecautionsServicing Equipment RequiredRemoval & Replacement Of SMD ComponentsCommon Causes Of SMD FailureLeaded Component RemovalDesoldering Iron MethodComponent Cutting Method3.133.133.133.153.173.173.173.183.5 Programming 3.18

8  8 ## 88 )!##Under certain circumstances the microprocessor can key the transmitter. Ensure that allinstruments are protected from accidental transmit at all times. 88 )!,The equipment has been designed to operate with a 50Ω termination impedance, butwill tolerate a wide range of antenna loading conditions. However, it is strongly recom-mended that the transmitter is not operated in the absence of a suitable load. Failure toobserve this precaution may result in damage to the transmitter power output stage. 88 )6*<47The RF power transistors in the T2000 all contain some beryllium oxide. This substance,while perfectly harmless in its normal solid form, can become a severe health hazardwhen it has been reduced to dust.For this reason the RF power transistors should not be scratched, mutilated, filed,machined, or physically damaged in any way that can produce dust particles. 88" ))*#This equipment contains CMOS Devices which are susceptible to damage from staticcharges. Care when handling these devices is essential. For correct handling proceduresrefer to manufacturers’ data books covering CMOS devices, e.g. Philips Data HandbookCovering CMOS Devices; Motorola CMOS Data Book Section 5 (Handling Procedures),etc.The following diagram shows a typical anti-static bench set-up.

 8 88+ )#7=&Pozidriv screws are the preferred standard on all T2000 series equipment. Pozidriv No.1 and 2 screwdrivers will fit all pozidriv screws used in the T2000: Philips cross-headscrewdrivers are not satisfactory for use on these screws.The following diagram identifies the differences between Philips and Pozidriv screw-drivers.The diagrams on the following pages show the types of screws used in the T2000Series II radios, their locations and torque specifications.driving flutes with parallel sidesdriving flutes with tapered sidesPozidriv Philipsinternal notches"star" markingsbetween slotsno special markingsslots with parallel sidesslots with tapered sidesridges between driving flutes

8" 7131491211612334458101412

 8+ 8 $# To carry out alignment it is necessary to remove only the top cover (1) andlogic PCB retaining screws (3). It is essential that the bottom cover (13) andmicroprocessor shield (5) with its three retaining screws (4) are torqueddown as specified in Figure 3.3. Various electronic components within the radio can be damaged by elec-trostatic discharge. A properly grounded earth mat and wrist strap shouldbe used at all times (refer to Section 3.1.4). 88 2!##,#)6Refer to Figure 3.3.Remove the top cover (1) by unscrewing the four bottom cover screws (14).Remove the three logic PCB retaining screws (3).It should now be possible to open out the logic PCB (2), giving access to both sidesof the logic PCB, and access to the RF PCB (11) tuning points, audio, plug-inTCXO PCB and loop filter components. 88 6)!#&#Refer to Figure 3.3.Remove the top cover and logic PCB screws as instructed in Section 3.2.1, thenremove the three microprocessor shield retaining screws (4).Remove the screw securing the earthing wire from the control head to the micro-processor shield.It should now be possible to lift off the microprocessor shield (5) and the bottomcover (13).This will give access to both sides of the RF PCB and IF PCBs, and enable the con-trol head to be removed.

8-  88 #)= 88 8 ,#Remove all covers, as instructed in Section 3.2.2.Unplug the loom running between the control head and the logic PCB.  In EMC model radios, the loom connects to a Micromatch connector on theEMC filter PCB (refer to Section 3.2.5). 88 8 Remove the four screws on the front of the radio dummy front panel. This willgive access to the control head loom, which can now be unplugged. In EMC model radios, the loom connects to a Micromatch connector on theEMC filter PCB (refer to Section 3.2.5).

 8. 88" )= 88"8 11:1+:1 ;41-1Refer to Figure 3.4.Remove the control head from the main chassis, as instructed in Section 3.2.3.Remove the four adaptor plate retaining screws (16).Remove the control head PCB retaining screws (14).78245691210131411151631

8/ The screws used in the control head are No. 4 Plastites, and should not be con-fused with the M3 screws used elsewhere. When being replaced, the No. 4 Plas-tite screws must be tightened to a torque of 8in.lb (0.9Nm).With the control head face down, gently remove the PCB (13), along with the key-pad (8) and lightspreader (7).Do not disturb the positioning or height of the LEDs, as this is critical for reas-sembly.Remove the speaker by carefully removing the four speaker retaining spire nuts.Remove of the volume knob (1) and volume pot nut (5) to access the volume knoblight spreader (6).

 80 88"8 11:1"141+1Refer to Figure 3.5 and Figure 3.6.Remove the control head from the main chassis, as instructed in Section 3.2.3.Remove the four adaptor plate/remote back panel retaining screws (16). Remotemounted models also have two captive nuts (17) fitted in the back cover. EMC model radios have 4 ESD plugs fitted over the remote back panel screws.These will need to be removed to access the remote back panel screws.Remove the control head PCB retaining screws (14).The screws used in the control head are No. 4 Plastites, and should not be con-fused with the M3 screws used elsewhere. When being replaced, the No. 4 Plas-tite screws must be tightened to a torque of 8in.lb (0.9Nm).41096512321157816111314

81 With the control head face down, gently remove the PCB (13), along with the key-pad (8) and lightspreader (7).Do not disturb the positioning or height of the LEDs, as this is critical for reas-sembly.Carefully remove the LCD (6) and lens (12).Lay the front panel (3) on a horizontal surface, with the light spreader (7) in place.Remove the volume knob (1) and volume knob nut (5) to access the lightspreaderand keypad (8).Before reassembly, the LCD and PCB edge connectors should be wiped with alco-hol.Take care to ensure the alcohol does not come in contact with the coating on thelight spreader, as this will dissolve on contact with alcohol.

 8 88+ #')3)6Refer to Figure 3.7.Remove the top cover and open the logic PCB, as described in Section 3.2.1.Remove the microprocessor shield and bottom cover, as described in Section 3.2.2. The control head (locally mounted models) or dummy front panel (remotelymounted models) can now be removed.Unplug the loom running between the logic PCB and EMC filter PCB (18).Unplug the loom running between the EMC filter PCB and the control head.Remove the 4 EMC filter PCB retaining screws. The EMC filter PCB can now belifted from the chassis. 88- !,#11:1"141+1Refer to Section 8.16, “T2000-A03/-A04/-A16 Remote Loom Kits”.

$8  8 7!&&#$# As the location of certain components in the PA is critical to performance,it is important that any components removed or disturbed are refitted inexactly the same location. 8 8 &#!Desolder the tabs by heating them with a soldering iron, then lifting them uptowards the transistor with a thin stainless steel spike or screwdriver.Unscrew the transistor mounting stud nut or screws and remove the transistor.Trim the tabs of the replacement to make them similar to the faulty item, thenlightly tin the underside of the tabs.Apply a thin layer of heatsink compound to the underside of the transistor.Screw the transistor tightly to the heatsink then solder the tabs.Do not solder the tabs before tightening the screws or nut, as this will fracturethe device. 8 8 )#)&#Apply a heavy duty soldering iron to the top of the capacitor case.When the solder is molten, ease the capacitor away from the PCB with a thinstainless steel spike or screwdriver.$

Tait 2000-6231 Mobile Transceiver User Manual 2k3 01

Tait Limited Mobile Transceiver 2k3 01

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