T2000/T2004 Multi Head System For T2020 T2040 Radios/T2004 Radios T2004
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T2000 mobiles T2004 Multi Control Head System Manual M2004-00-000-814 May 2004 © Tait Electronics Limited Contact Information Tait Radio Communications http://www.taitworld.com Corporate Head Office New Zealand Tait North America Tait Electronics Ltd. P.O. Box 1645 Christchurch New Zealand E-mail (Marketing): taitnet@taitworld.com E-mail (Sales): sales@taitworld.com Regional Head Office - Canada Tait North America Inc. E-mail: canada@taitworld.com United States of America Tait North America Inc. E-mail: usa@taitworld.com Latin America Technical Support Technical Support Manager Tait Electronics Ltd P.O. Box 1645 Christchurch New Zealand Telephone: (64) (3) 358-3399 Facsimile: (64) (3) 358-6486 E-mail: support@taitworld.com Oceania New Zealand Tait Communications Ltd. E-mail: headoffice@tcl.tait.co.nz Australia Tait Electronics (Aust) Pty Ltd. E-mail: australia@taitworld.com Tait Europe Tait Latin America E-mail: latinamerica@taitworld.com Tait North Asia Regional Head Office - Hong Kong Tait Mobile Radio (Hong Kong) Ltd. E-mail: hongkong@taitworld.com Beijing Tait Mobile Radio (Hong Kong) Ltd. E-mail: beijing@taitworld.com Tait South Asia Regional Head Office - Singapore Tait Electronics (Far East) Pte. Ltd. E-mail: singapore@taitworld.com Thailand Tait Mobile Radio Ltd. E-mail: thailand@taitworld.com Regional Head Office - United Kingdom Tait Mobile Radio Ltd. E-mail: teusales@tait.co.uk 2 T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited Contents Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Scope of Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Enquiries and Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Associated Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Updates of Manual and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Publication Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Part A System Information 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.1 Document Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.2 Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.1 System Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.2 System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.3 System Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.4 System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3 System Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4 System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5 System Equipment Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.1 Multi-Drop Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Micromatch to RJ45 Cable (IPN 219-02900-00) . . . . . . . . . . . . . . . . . . . 23 5.3 RJ45 Wallbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.4 DC Power and Speaker connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6 System Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5 System Fault Finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 3 Part B T2004 Control Heads 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 1.1 The T2004 Control Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 1.3 Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 2 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3 Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.1 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4 I/O Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4.1 J6: Power and Speaker Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4.2 J5: 8way Micromatch Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.3 S10: 6way RJ Socket (Microphone) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 5 Assembly/Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 42 5.1 Mechanical Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 5.2 Disassembling the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 6 X2H2xx PCB Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6.1 X2H221 Rev 007 Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 6.2 X2H221 Rev 007 Grid Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 6.3 228-23722-02 PCB Top Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 6.4 228-23722-02 PCB Bottom Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 6.5 X2H221- PCB Circuit Diagram (page 1 of 1) . . . . . . . . . . . . . . . . . . . . . 55 7 Testing the X2H2xx control heads . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Part C X2AM01 Radio Interface 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 1.1 The X2AM01 Multi-Head Radio Interface PCB . . . . . . . . . . . . . . . . . . . 60 2 4 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 3 I/O Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 3.1 SK1: 8 Way Micromatch Socket to Radio . . . . . . . . . . . . . . . . . . . . . . . . 62 3.2 SK3: 8 Way Micromatch Socket to Control Heads . . . . . . . . . . . . . . . . . . 62 4 Fitting PCB into Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 5 X2AM01 Multi-Head Radio Interface PCB . . . . . . . . . . . . . . . . . . . . . 65 5.1 X2AM01 Rev 008 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 5.2 X2AM01 Rev 008 Grid Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 5.3 228-23721-01 PCB Top Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 5.4 228-23721-01 PCB Bottom Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 5.5 X2MA01 PCB Circuit Diagram (page 1 of 1). . . . . . . . . . . . . . . . . . . . . . 72 6 Testing the X2AM01 radio interface . . . . . . . . . . . . . . . . . . . . . . . . . . 73 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 5 6 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Preface Scope of Manual This manual contains general and technical information about the T2004 Multi-Control Head system for use with a T2000 radio. Copyright All information contained in this manual is the property of Tait Electronics Ltd. All rights are reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, stored, or reduced to any electronic medium or machine-readable form, without prior written permission from Tait Electronics Limited. All trade names referenced are the service mark, trademark or registered trademark of the respective manufacturers. Disclaimer There are no warranties extended or granted by this manual. Tait Electronics Ltd accepts no responsibility for damage arising from use of the information contained in the manual or of the equipment and software it describes. It is the responsibility of the user to ensure that use of such information, equipment and software complies with the laws, rules and regulations of the applicable jurisdictions. Enquiries and Comments If you have any enquiries regarding this manual, or any comments, suggestions and notifications of errors, please contact Customer Support, Tait Electronics Ltd, Christchurch, New Zealand (refer to “Contact Information” on page 2). Associated Documentation T2004 Multi-Control Head Installation Manual M2004-00-000-315 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 7 Updates of Manual and Equipment In the interests of improving the performance, reliability or servicing of the equipment, Tait Electronics Ltd reserves the right to update the equipment or this manual or both without prior notice. Publication Record Issue 0 8 Publication Date April 2004 Description new manual T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Part A System Information This part provides general information about the TM8000 , and describes how to install and operate the system. The following topics are covered in this part: ■ Section 1 Introduction ■ Section 2 System Overview ■ Section 3 System Installation ■ Section 4 System Operation ■ Section 5 System Equipment Specifications ■ Section 6 System Testing ■ Section 7 System Fault Finding T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 9 10 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 1 Introduction 1.1 Document Navigation System Manual This System Manual is divided into three parts. ■ Part A provides general information about the system, how the components are connected together, system installation and operation instructions, and specifications for equipment in the system, excluding the control heads and radio. ■ Part B provides technical information about the control heads, including a circuit description, PCB layout and circuit diagram, and testing information. ■ Part C provides technical information about the Radio Interface PCB, including a circuit description, PCB layout and circuit diagram, and testing information. Control Head/Radio User Guide Installation and operation instructions included in Part A of the System Manual provide instructions unique to this system. For more detailed operation instructions, refer to the user guide. Radio Service Manual The System Manual does not contain information about the T2020 or T2040 radio used with the system. For information about the radio, refer to the T2000 Series II Service Manual (M2000-00-301). T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Introduction 11 1.2 Product Codes The T2004 Multi-Control Head system replaces the STA6682 Multi Control Head system, previously manufactured by Tait Communications Ltd. (TCL). Note The T2004 is not compatible with existing STA6682 heads or interface boards. The table below provides the product numbers for both systems. Product Code 12 Introduction Description TCL Code T2004-A20 T2020 Primary Multi-Control Head Kit T2004-A21 T2020 Secondary Multi-Control Head Kit T2004-A40 T2040 Primary Multi-Control Head Kit T2004-A41 T2040 Secondary Multi-Control Head Kit X2H221 T2020 Primary Control Head only STA6682-4H X2H222 T2020 Secondary Control Head only STA6682-4H X2H241 T2040 Primary Control Head only STA6682-4H X2H242 T2040 Secondary Control Head only STA6682-4H X2AM01 T2020/40 Multi-Control Head Radio Interface PCB STA6682-1H T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 2 System Overview The T2004 Multi-Control Head system allows the use of between one and five control heads with a single T2020 or T2040 radio. The control heads are configured as one Primary and up to four Secondary. The Primary control head is the only one which controls the radio’s power, as well as power to each Secondary control head, otherwise the functionality of all the control heads is the same. Advantages: radio to control head length able to be greater than the standard 6m cable. The Multi-Control Head system consists of two kits, designed to connect to your existing Series II T2020 or T2040 radio and T2008 power supply: ■ the T2004-A20 (T2020) or the T2004-A40 (T2040) Primary MultiControl Head Kit (one required per system). ■ the T2004-A21 (T2020) or T2004-A41 (T2040) Secondary MultiControl Head Kit (not required if only one control head is used in the system). The T2004-A20 or T2004-A40 Primary Head Kit provides the Primary control head as well as the Radio Interface PCB. This PCB is housed inside a dummy (Clayton’s) control head and replaces the standard control head on the radio. The radio can be concealed if required, as all radio controls are now done via the Primary control head. The T2004-A21 or T2004-A41 Secondary Head Kit provides one Secondary control head and other equipment needed to install the control head for use with the radio. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Overview 13 Each control head can be installed anywhere on a multi-drop line up to 2000m long (not included), and is powered locally by a mains-operated DC plug pack. A speaker plugs into each control head to provide local Tx and Rx audio. Note The DC Plug pack is not supplied as part of the kit. The correct plug pack for each country can be ordered separately as per the table on page 18. The control heads provide the same functionality as the standard T2000 control head, but will not provide for a DTMF module to be fitted. In addition, the control heads provide some extra functions: 2.1 ■ Global Mute The Global Mute function is provided to avoid the possibility of audio feedback when two or more control heads are placed in close proximity. This function is individually selectable on each control head, via a link JP1 on the control head PCB. Refer to Part B, Control Head for further information. ■ Power Switch Selection The Power Switch Selection function is provided so that only one control head in the system (the Primary control head) is able to control the system’s power. This function is selectable by the fitting of a jumper (JP2) on the control head PCB of the Primary control head. Refer to Part B, Control Head for further information. System Specifications General Specifications Radios supported Series II T2020 and T2040 radios Possible number of control heads Between one and five Control head DC supply & speaker connector Phoenix MCV 1,5/4-G-3,81 4 way jack Control head DC supply voltage (at 800mA) +13.8V nominal +10.8V minimum +16.0V maximum Balanced line Audio levels -10dBm for receiver audio -15dBm for transmitter audio Control head dimensions Standard T2000 control head dimensions Recommended cable 4 x twisted pair with overall screen 14 System Overview T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 2.2 System Diagram T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Overview 15 2.3 System Equipment The Multi-Control Head system includes the following components: ■ one T2020 or T2040 radio with T2008 power supply unit (existing) ■ 2km maximum Multidrop Line (not supplied) ■ one T2004-A20 or T2004-A40 Primary Multi-Control Head Kit ■ between one and four T2004-A21 or T2004-A41 Secondary MultiControl Head Kit (optional) T2004-A20 and T2004-A40 Primary Multi-Control Head Kit Parts The T2004-A20 or T2004-A40 Primary Multi-Control Head Kit are listed below: Qty IPN Description 1 X2H221 or X2H241 T2020 or T2040 Primary Control Heada 1 X2AM01 T2020/40 Multi-Control Head Radio Interfaceb 2 219-02900-00 Micromatch to RJ45 cable 2 240-04051-00 RJ45 Screw Terminal Wallbox 2 349-00010-33 Screw, #6*3/4: S/T P/P (bracket to wall) 4 349-00010-22 Screw, 4-20x3/8 P/P Trilb-P BZ (dummy head to radio) 1 316-06433-02 Dummy (Clayton’s) control head 1 316-85125-00 T2000 Plate cover 1 219-02907-00 Power/ Speaker cable (no plug pack) 1 M2004-00-000-315 Installation manual 1 252-00010-49 Microphone clip 1 302-05211-00 Head mounting bracket 2 350-01007-00 Head thumb screws 4 360-01057-00 Screw hole covers a. For more information about the X2H221 or X2H241 Primary Control Head, see Part B of this manual. b. For more information about the X2AM01 T2020/40 Multi-Control Head Radio Interface board, see Part C of this manual. This kit provides the Primary control head as well as the Radio Interface PCB. This PCB is housed inside a dummy (Clayton’s) control head and replaces the standard control head on the radio. The radio can be concealed if required, as all radio controls are now done via the Primary control head. 16 System Overview T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 A speaker and microphone are not provided as part of the Primary MultiControl Head Kit, as the Primary control head uses the speaker and microphone already supplied with the radio. T2004-A21 and T2004-A41 Secondary Multi-Control Head Kit Parts The T2004-A21 or T2004-A41 Secondary Multi-Control Head Kit parts are listed below: Qty IPN Description 1 X2H222 or X2H242 T2020 or T2040 Secondary Control Heada 1 219-02900-00 Micromatch to RJ45 cable 1 240-04051-00 RJ45 Screw Terminal Wallbox 2 349-00010-33 Screw, #6*3/4: S/T P/P (bracket to wall) 1 005-00000-40 T2000 Speaker Kit (incl. mount) 1 252-00010-76 T2000 microphone 1 219-02907-00 Power/ Speaker cable (no plug pack) 1 M2004-00-000-315 Installation manual 1 252-00010-49 Microphone clip 1 302-05211-00 Head mounting bracket 2 350-01007-00 Head thumb screws a. For more information about the X2H222 or X2H242 Secondary Control Head, see Part B of this manual. This kit provides one Secondary control head and other equipment needed to install the control head for use with the radio. Between one and four Secondary Multi-Control Head Kits can be installed as part of your system. Each control head can be installed anywhere on a multi-drop line up to 2000M long, and is powered locally by a mains-operated DC plug pack. A speaker plugs into each control head to provide local Rx audio and Tx audio from other control heads in the system. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Overview 17 DC Plug packs for powering multi -control heads Each multi-control head requires a separate DC plug pack. This is not supplied as part of the kit because the exact plug pack requirements differ between countries. With each T2004 multi-control head kit you can order one of the following plug packs Order Code 18 System Overview Input Voltage Country T952-012 230V Australia/ New Zealand T952-022 230V United Kingdom T952-032 230V Europe T952-042 110V United States of America T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 2.4 System Connections Each control head connects to the system network via the Micromatch to RJ45 Cable, which plugs into the RJ45 Wallbox. The RJ45 Wall boxes are fitted at intervals along a multi-drop cable. The radio also connects to the system network via the Micromatch to RJ45 Cable, which plugs into the X2AM01 Multi-Head Radio Interface. The other end of the cable plugs into an RJ45 Wallbox, which is fitted at one end of the multi-drop cable. See system diagram earlier for block overview of system. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Overview 19 3 System Installation The T2004 Multi-Control Head Installation Manual M2004-00-000-315 should be referred to for the installation process. 20 System Installation T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 4 System Operation The primary control head provides the same user functionality as the original T2020/T2040 control head, including the On/Off power control to the entire multi-head system. The Secondary control heads have the same functionality except for the On/Off power control. The power switch is disabled in the Secondary heads, because only one control head (Primary) can provide system power On/Off control. Secondary control heads can not be individually powered off. Note The DC plug pack for the Secondary head should be connected to a 24-hour mains outlet in order for the Secondary heads to always function correctly. Display errors will occur if power is removed and replaced without resetting the radio via the Primary head. Secondary heads have a programmed delay of 10 seconds from initial power on, where key presses will not be actioned. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Operation 21 5 System Equipment Specifications 5.1 Multi-Drop Cable Specifications Note This cable is not supplied by TEL as part of the Multi-Control Head system. The Multi-Drop Cable is a 4x twisted pair overall screen cable (Cat5 or similar) which is used for cabling within the building. The length of this cable can be a maximum of 2000M. The recommended cable type used for the multi-drop cable is M&M cables b2004 ESCS 4 x twisted pair/overall screen. RJ45 Wall boxes are fitted at intervals along this multi-drop cable, which provide the junction between the remote control heads and connection to the building network. 22 System Equipment Specifications T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 5.2 Micromatch to RJ45 Cable (IPN 219-02900-00) The Micromatch to RJ45 Cable is the means by which the radio and control heads connect to the building network. The cable connects the radio at SK3 on the X2AM01 Multi-Head Interface PCB to the radio’s RJ45 Wallbox. The cable connects each control head at J5 to the corresponding RJ45 Wallbox. The table below shows the pin assignment for the RJ45 cable which connects to the wallboxes: Pin T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Colour Description 1 Black Data from radio 1B 2 Brown Data from radio 1A 3 Red Ground 4 Orange Balanced audio 5 Yellow Balanced audio 6 Green Power switch 7 Blue Data to radio 2B 8 Violet Data to radio 2A System Equipment Specifications 23 5.3 RJ45 Wallbox Wall boxes are connected in a multi drop arrangement (i.e. all wiresare connected in parallel), with one wallbox for each control head and one wallbox for the radio. View below of the RJ45 Wallbox terminals is from the top. The following pins should be paired: 24 ■ Power Switch line and Ground ■ Audio ■ Data 1A & 1B ■ Data 2A & 2B Note Polarity of the data pairs is important. Earthing of the cable screen should only occur at the radio interface wallbox. Note Some Cat 5 cable installations (normally used for network or PABX connection) have pin reversal on some or all pins. Check connection polarities if control heads do not function as expected. System Equipment Specifications T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 5.4 DC Power and Speaker connections The control head is connected to the external speaker and the DC plug pack via the 219-02907-00 Multi-head DC power cable. Quantity IPN Description 300mm 201-00030-10 Wire T/C 7/0.2mm Pvc Blk 1 meter 205-00010-03 Cable twin cycle 2/7/0.2mm black 1 240-02011-35 Connector 4w Phoenix MCV 1,5/4-G3,81 4 way jack 1 240-04021-63 Connector 2w 24awg black inline 1 356-00010-05 Tag Solder 4mm long M6144/4.2 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Equipment Specifications 25 26 System Equipment Specifications T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 6 System Testing Install all interface boards, control heads and components as per the installation guide (IPN M2004-00-100-315). Power up all control heads, followed by the radio. Check the Primary control head causes the radio and all heads to power on and off. Check all control heads show the same information in the LCD Check all control heads keypad functionality. Note Secondary head user input is disabled for 10 seconds after power on. Check transmit and receive audio functionality from all control heads. The radio should function normally from each control head. If Global mute is enabled check the following ■ All control heads have audio when all mics are on hook (Hang up stud is earthed) ■ When one microphone is lifted off hook the audio remains enabled for that head and all other heads are muted. ■ When a microphone is off hook in the system, check that lifting another microphone off hook enables audio for that head. Verify the radio can be read/ programmed by a computer connected to any remote head. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Testing 27 7 System Fault Finding Problem System will not power up, all heads appear dead. Suggestion ■ Check radio has power connected and two micromatch connectors on the interface board are not reversed. ■ Check pin 1 of interface board SK3 appears at J5 pin 1 at control heads. SK3 pin 2 connects to J5 pin 2 etc. ■ Check for 13.8V at control heads. ■ Check Primary head is correctly fitted and turned on. Problem System will not power off. Suggestion ■ Check all multi-drop wiring for shorts or faults. ■ Check only one Primary head is installed. Problem Head displays information but keypad, mic, etc. are dead. Suggestion ■ This happens for ten seconds after power up on Secondary heads only. ■ If condition is permanent check data pair 2A/2B paying attention to polarity. Problem Transmit/ Receive audio is very quiet. Suggestion Check for cable losses or faults. Max multi drop line length is 2km. 28 System Fault Finding T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Problem Transmit/ Receive audio is excessively noisy. Suggestion ■ Confirm radio is OK by removing multi-drop network and connecting a Primary control head directly to the interface board SK3. ■ If problem is in the network, check for cable faults, remove noise sources or re-route cable away from noise sources. ■ Ensure mic clip is isolated from metal work to avoid earth loops. Problem Global mute is not functioning. Suggestion ■ Check JP1 is fitted in the control head. ■ Check microphone clip is correctly earthed. Problem Control head only shows 2372A510 on power on or all digits and LEDs flash. Suggestion ■ One of the keys on the keypad is stuck down. ■ Keypad PCB has become contaminated with chemicals or liquids. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 System Fault Finding 29 30 System Fault Finding T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Part B T2004 Control Heads This part provides general and technical information about the T2020 and T2040 Primary and Secondary control heads used in the T2004 Multi-Control Head system. The control heads covered in this section are: ■ X2H221 T2020 Primary Control Head ■ X2H222 T2020 Secondary Control Head ■ X2H241 T2040 Primary Control Head ■ X2H242 T2040 Secondary Control Head The following topics are covered in this part: ■ Section 1 Introduction ■ Section 2 Circuit Description ■ Section 3 Functionality ■ Section 4 I/O Connections ■ Section 5 Assembly/Disassembly Instructions ■ Section 6 X2H2xx PCB Information ■ Section 7 Testing the X2H2xx control heads T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 31 32 T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 1 Introduction 1.1 The T2004 Control Heads The T2004 Multi-Control Head system allows the use of between one and five control heads with a single T2020 or T2040 radio. The control heads are configured as one Primary and up to four Secondary. The Primary control head is the only one which controls the radio’s power, as well as power to each Secondary control head, otherwise the functionality of all the control heads is the same. 1.2 Features The remote control heads provide the same functionality as the standard T2000 control head, except it does not provide for a DTMF module to be fitted. If DTMF dialling capability is required, a T2000-A07 DTMF microphone is required. In addition, the remote control heads provide two extra functions: ■ Power Switch Selection (Primary/ Secondary mode selection ■ Global Mute Power Switch Selection The Power Switch Selection function is provided so that only one control head in the system (the Primary head) is able to control the system’s power. This function is selectable by the fitting of a jumper (JP2) on the control head PCB of the Primary head. This is factory fitted by default. Only the Primary head should have JP2 fitted. The system will not power on correctly if more than one control head in the system has this jumper fitted. Global Mute The Global Mute function is provided to avoid the possibility of audio feedback when two or more control heads are placed in close proximity (for example, within the same room or the same vehicle). The Global Mute function is individually selectable on each control head, via a link on the control head PCB. This is factory fitted by default. If a control head has this jumper fitted, its speaker will only unmute when the microphone is taken off hook (i.e. to answer or make a call). All other T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Introduction 33 control heads with the global mute function enabled will mute their speakers. If all microphones are on-hook then all the speakers will unmute when a call is received. A user shall be able to join a conversation by picking up the microphone. This will unmute the speaker audio at that control head. With Global Mute disabled (i.e. the jumper is not fitted), received audio is present at all control heads, and transmit audio is heard at all heads except the head that is transmitting. Not all control heads in the system must be set to the same Global Mute setting. For example: ■ Where a despatcher station has two control heads in the same room, both heads would need Global Mute enabled to avoid audio feedback. ■ Where a supervisor may have a control head installed in their office, and wants to hear all incoming and outgoing traffic, Global Mute would not be enabled. Note that in this example, outgoing transmit audio from this control head would be heard at the despatcher’s station heads. General Specifications Radios supported Series II T2020 and T2040 radios Possible number of control heads Between one and five Control head DC supply & Speaker connector Phoenix MCV 1,5/4-G-3,81 4 way jack Control head DC supply voltage (at 800mA) +13.8V nominal +10.8V minimum +16.0V maximum Balanced line audio levels Preset to -10dBm for receiver audio Preset to -15dBm for transmitter audio Control head dimensions Standard T2000 control head dimensions 34 Introduction T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 1.3 Product Codes Product Code Description TCL Code T2004-A20 T2020 Primary Multi-Control Head Kit T2004-A21 T2020 Secondary Multi-Control Head Kit T2004-A40 T2040 Primary Multi-Control Head Kit T2004-A41 T2040 Secondary Multi-Control Head Kit X2H221 T2020 Primary Control Head only STA6682-4H X2H222 T2020 Secondary Control Head only STA6682-4H X2H241 T2040 Primary Control Head only STA6682-4H X2H242 T2040 Secondary Control Head only STA6682-4H X2AM01 T2020/40 Multi-Control Head Radio Interface PCB STA6682-1H T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Introduction 35 2 Circuit Description This section provides circuit information for the T2004 Primary and Secondary control heads as shown in the X2H2xx control head block diagram. Audio An internal power amplifier drives a speaker connected to the control head for local audio. The PCB provides a 600 Ohm interface for both the Tx and Rx audio. A microphone amplifier/ compressor followed by a line driver stage outputs microphone audio to the balanced line. Microphone The standard T2000-A02 microphone is used. 36 Circuit Description T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Power The control head is supplied with 13.8V from an AC to DC plug pack. The remote power switch line J5-3 (controlled by the Primary control head) controls the 5V regulators on the Secondary heads and interface board. Data A separate RS-485 transmitter and receiver in each control head provide the data communications between the radio and control heads. Connections Connection to the remote control heads is via the micromatch to RJ45 cable at J5, which connects to the RJ45 Wallbox. The wallbox connects to the multi-drop cable, which connects to the RJ45 Wallbox for each control head and the radio. DC Input and speaker output is via a 4 way phoenix connector at J6. The supplied cable 219-02907-00 connects to J6. The plug pack (supplied separately) connects to this cable assembly. The DC input is polarity protected so that in the event of reverse polarity being applied the head will not function, no damage will occur. T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Circuit Description 37 3 Functionality 3.1 Software Software version 2372A510 is programmed into the microprocessor on all of the remote control heads. The software allows the remote control heads to work in the same way as standard T2000 control heads, with additional features detailed below. Primary Secondary Configuration The control head design is altered to allow a system of multiple heads to function with one radio. The heads are divided into Primary and Secondary via hardware, i.e. by linking a port bit on the head processor (Secondary = high, Primary = low). Only one Primary is possible per system. RS485 The serial line driver in each head feeds its output to a common serial line back to the radio. This raises the problem of multiple devices trying to drive one line. To overcome this, the RS485 line drivers are held in a tri-state condition until the head generates serial data. Hardware on the circuit board enables the driver at the appropriate time. The radio can still be programmed from a PC via any head. Avoiding Data Clashes The heads share a common serial data link with the radio, so in order to overcome data clashes at power up time, Secondary heads have a 10 second timeout during which all user input and all serial output is stopped. After the timeout, normal operation resumes. Note that there is no mechanism to prevent data clashes during normal operation; the system must rely on the probability of a clash being very small. Controlling the Speaker Path Muting the speaker output of one head by another head is accomplished in hardware by phantoming a DC control signal onto commonly connected audio lines which link all heads in the group. This line can be either driven or its state sensed by the head microprocessor and the audio output is 38 Functionality T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 controlled accordingly. This is enabled by fitting JP1, for the Global Mute feature. In order to accomplish this, some I/O lines of the microprocessor have been reassigned to new functions. The control of the audio output is based on a truth table that uses the state of the PTT, Hook and Line Sense inputs as its control elements. The audio truth table is shown below. Scenario JP1 PTT (0= Active i.e Hook Switch Global Mute Line Drive (All heads in this (In = Global condition) Mute Active) Transmitting) (1= On hook) (1= mute other heads) Global Mute Line Sense Spkr Mute (1= activate mute) i.e.no audio) (1=mute active Comment On hook, no Rx audio IN 1 1 0 0 0 On hook, no Rx audio OUT 1 1 0 0 0 On hook, Rx audio IN 1 1 0 0 0 Everyone can hear audio On hook, Rx audio OUT 1 1 0 0 0 Everyone can hear audio Off hook (local) IN 1 0 1 1 0 Only local head has Rx audio Off hook (local) OUT 1 0 0 1 0 Because jumper is out, line drive does not affect other heads Off hook (remote) IN 1 1 0 1 1 Everyone else muted Off hook (remote) OUT 1 1 0 0 0 Hear everything Off hook (local+remote) IN 1 0 1 1 0 Everyone off hook hears audio Off-hook (local+remote) OUT 1 0 0 1 0 Hear everything PTT (local) off hook IN 0 1 1 1 1 Mute local PTT (local) off hook OUT 0 1 0 1 1 Mute local PTT (local) on hook IN 0 1 1 1 1 All muted PTT (local) on hook OUT 0 1 0 1 1 Mute local but no-one else PTT (remote) on hook local IN 1 1 0 1 1 Mute local (same as ‘Off hook remote’) PTT (remote) on hook local OUT 1 1 0 1 0 Hear everything PTT (remote) off hook local IN 1 0 1 1 0 Hear everything PTT (remote) off hook local OUT 1 0 0 1 0 Hear everything T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Functionality 39 4 I/O Connections This section describes the I/O connections on the board. 4.1 J6: Power and Speaker Connector J6 on the rear panel of the control head provides connections for power, speaker and microphone clip ground. The connector provides screw terminals for fitting the microphone clip earth wire and speaker wires. 40 I/O Connections T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 4.2 J5: 8way Micromatch Socket Pin 4.3 Signal Description 1 Tx Data 2A Data to radio A 2 Tx Data 2B Data to radio B 3 Pwr Sw Remote power switch, low = power on 4 Audio Balanced audio line 5 Audio Balanced audio line 6 Gnd Common ground 7 Rx Data 1A Data from radio A 8 Rx Data 1B Data from radio B S10: 6way RJ Socket (Microphone) Pin Signal Description 1 +13V8 Low current supply for programming interface 2 TXD Data from radio to computer 3 PTT low = transmit condition 4 MIC Microphone audio 5 GND Common ground 6 RXD Data from computer to radio T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 I/O Connections 41 5 Assembly/Disassembly Instructions This section provides mechanical parts information and disassembly instructions for the control heads. 5.1 Mechanical Parts The T2004 Multi-Control Head includes the following mechanical parts. Please use the IPN number and description when ordering replacement parts. Note Item All PCB and cable components are specified separately. For information for these items, refer to the sections listed below: ■ For PCB information, refer to Section 6, “X2H2xx PCB Information”. ■ For external cable information, refer to Part A, Section 5, “System Equipment Specifications”. Description IPN Qty 1 Knob A3M2530 T2K SII 311-01042-01 1 2 Microphone with Grommet 252-00010-76 1 3 Panel Frt Scrn T2020/40/50 SII 316-06430-02 1 4 Volume Pot Nut part of 040-05100-20 1 5 Volume Pot Washer part of 040-05100-20 1 6 LCD Display 008-02029-00 1 7 Lightspreader 20 Bttn T2K SII 304-07036-02 1 8 Keypad SII International 311-03076-01(T2020) 311-03078-01(T2040) 1 9 Volume Pot 040-05100-20 1 10 Pot PCB part of 228-23722-xx 1 11 Microphone Connector 240-04021-61 1 12 Lens LCD Display T2K FM2/TR2 312-01046-05 1 13 Control Head PCB 228-23722-xx 1 14 Screw 4-20x3/8 P/P Trilobe-P BZ (Control Head Screws) 349-00010-22 2 15 Back Panel 316-02001-00 1 16 Screw 4-20x5/8 P/P Trilobe-P BZ (Remote Back Screws) 349-00010-24 4 17 Captive Nut M4 Pressed 352-00010-17 2 18 Remoting Connector Cover 316-85125-00 1 42 Assembly/Disassembly Instructions T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 5.2 Disassembling the Control Head To disassemble the control heads, refer to the parts list opposite, and the instructions and illustration below. 1. Remove the four retaining screws(16) and two captive nuts (17) from the back panel. 2. Remove the two retaining screws (14) from the control head PCB. Note 3. When replacing the screws, tighten to a torque of 8in.lb (0.9N). With the control head face down, gently remove the PCB (13), keypad (8), and lightspreader (7) from the front panel (3) Caution T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 Do not disturb the positioning or height of the LEDs, as this is critical for reassembly. Assembly/Disassembly Instructions 43 4. Carefully remove the LCD (6) and lens (12). 5. Lay the assembly on a horizontal surface, with the light spreader (7) in place. 6. Remove the volume knob (1) and volume knob nut (4) to access the lightspreader and keypad. 7. Before reassembly, the LCD and PCB edge connectors should be wiped with alcohol. Caution 44 Take care to ensure the alcohol does not come into contact with the coating on the lightspreader, as this will dissolve on contact with alcohol. Assembly/Disassembly Instructions T2004 Multi-Control Head System Manual © Tait Electronics Limited May 2004 6 X2H2xx PCB Information This section contains all PCB information for the X2H2xx Multi-Head Control Head PCB. The following information is included: ■ PCB parts list ■ Grid references ■ PCB layout drawings for both sides of the board ■ Circuit diagram. T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited X2H2xx PCB Information 45 46 X2H2xx PCB Information T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited 6.1 X2H221 Rev 007 Parts List IPN 228-23722-02 Ref IPN Description Ref BF1 BF2 BF3 BF4 BF5 BF6 BF7 BF8 BL1 BL2 BL3 BL4 BL5 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C15 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 008-00010-25 008-00010-25 008-00010-25 008-00010-25 008-00010-25 008-00010-25 008-00010-25 008-00010-25 008-00020-31 008-00020-31 008-00020-31 008-00020-31 008-00020-31 016-08100-03 015-27100-10 016-09100-03 015-25220-08 015-24100-08 016-09100-03 015-26100-08 015-24100-08 015-27100-10 016-08100-01 015-25150-08 015-26100-08 015-26100-08 015-26100-08 015-26100-08 015-26100-08 015-22100-01 015-26100-08 015-23100-01 015-26100-08 015-23150-01 015-23150-01 015-23150-01 015-23150-01 015-23150-01 015-26100-08 015-24470-08 015-25150-08 015-24470-08 015-22220-05 015-22220-05 015-23150-01 015-26100-08 015-26100-08 015-26100-08 016-07470-01 015-24100-08 015-24100-08 016-08470-01 015-26100-08 015-26100-08 015-27100-10 015-27100-10 016-07220-06 LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 2mm Grn Tower 3.8 Base LED 3mm Yel Clear Sunpwr LED 3mm Yel Clear Sunpwr LED 3mm Yel Clear Sunpwr LED 3mm Yel Clear Sunpwr LED 3mm Yel Clear Sunpwr Cap Elec SMD 10uF 35V 105/2000 Cap Cer 0805 1m+80-20% Y5v 16v Cap Elec SMD 100u 16v 20% Cap Cer 0805 22n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Cap Elec SMD 100u 16v 20% Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Cap Cer 0805 1m+80-20% Y5v 16v Cap Elec SMD 10m 4*5.2 16v 20% Cap Cer 0805 15n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 10p+-0.5p NPO 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100p 5% NPO 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 150p 5% NPO 50v Cap Cer 0805 150p 5% NPO 50v Cap Cer 0805 150p 5% NPO 50v Cap Cer 0805 150p 5% NPO 50v Cap Cer 0805 150p 5% NPO 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 4n7 10% X7r 50v Cap Cer 0805 15n 10% X7r 50v Cap Cer 0805 4n7 10% X7r 50v Cap 0805 22p 1% 200v Cap 0805 22p 1% 200v Cap Cer 0805 150p 5% NPO 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Elec SMD 4u7 6*4 16v 20% Cap Cer 0805 1n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Cap Elec SMD 47uf 6*4 16v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 1m+80-20% Y5v 16v Cap Cer 0805 1m+80-20% Y5v 16v Cap Elec SMD Bi-P 22u 16v 20% C53 016-09100-03 C55 015-23100-01 C56 015-22330-01 C57 016-09100-03 C58 015-27100-10 C59 015-23100-01 C62 015-26100-08 C67 015-26100-08 C731 015-25100-08 C732 015-25100-08 C733 015-25220-08 C734 015-24100-08 D1 001-10001-60 D2 001-10070-01 D3 001-10001-60 D4 001-10001-60 D5 001-10011-74 J4 240-00020-87 J5 240-10000-05 J6 240-06000-00 JP1 036-10000-00 JP2 036-10000-00 LCD1 008-02029-00 PT501 040-05100-20 Q1 000-10008-17 Q2 000-10008-17 Q3 000-10008-17 Q4 000-10085-71 Q5 000-10008-17 Q6 000-10085-71 Q7 000-10008-17 Q8 000-10085-71 Q9 000-10008-17 Q10 000-10008-17 Q11 000-10008-17 R1 036-16100-00 R5 036-15270-00 R6 036-16100-00 R7 036-15100-10 R8 036-14470-10 R09 036-17100-00 R10 036-16100-00 R11 036-16100-00 R12 036-16100-00 R13 036-16100-00 R14 036-16100-00 R15 036-15270-00 R16 036-16100-00 R17 036-15180-00 R18 036-15560-10 R19 036-14100-00 R20 036-16100-00 R21 036-15470-10 R22 036-15100-10 R23 036-15100-10 R24 036-15270-00 R25 036-15100-10 T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited IPN Description Cap Elec SMD 100u 16v 20% Cap Cer 0805 100p 5% NPO 50v Cap Cer 0805 33p 5% NPO 50v Cap Elec SMD 100u 16v 20% Cap Cer 0805 1m+80-20% Y5v 16v Cap Cer 0805 100p 5% NPO 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 10n 10% X7r 50v Cap Cer 0805 10n 10% X7r 50v Cap Cer 0805 22n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Diode SMD BAS16 Diode BAV70W Dual Ss SOT323 Diode SMD BAS16 Diode SMD BAS16 Diode SMD MRA4004T3 1a/400v Hdr 2x5w Ra Pcb Mtg Conn SMD 8w 2r Skt M/Match Conn 4W Hdr Vrt3.81mm Combicon Res M/F SMD 0805 0e 0.125w Res M/F SMD 0805 0e 0.125w LCD 8 Chr 14 Seg Alpha T2K Pot 10k Log 3a 16vDC Spst Pcb Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC857BW PNP SOT323 Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC857BW PNP SOT323 Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC857BW PNP SOT323 Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC817-25 NPN SOT23 Xstr SMD BC817-25 NPN SOT23 Res M/F SMD 0805 100k 5% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 4k7 1% Res M/F SMD 0805 1m 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 18k 5% Res M/F SMD 0805 56k 1% Res M/F SMD 0805 1k 5% Res M/F SMD 0805 100k 5% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 10k 1% X2H2xx PCB Information 47 Ref IPN Description Ref IPN Description R26 R28 R34 R35 R42 R43 R44 R53 R69 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R117 R119 R120 R121 R123 R124 R125 R126 R127 R128 R129 R130 R133 R135 R136 R138 R139 R140 R141 036-15100-10 036-10000-00 036-14470-10 036-14470-10 036-15470-10 036-15470-10 036-15470-10 036-15470-10 036-15470-10 036-15470-10 036-15100-10 036-15100-10 036-15100-10 036-15100-10 036-13560-00 036-13560-00 036-13560-00 036-13560-00 036-16180-00 036-13470-00 036-15100-10 036-14120-00 036-14270-00 036-14100-00 036-14270-00 036-14120-00 036-14270-00 036-13470-00 036-13390-00 036-13470-00 036-14270-00 036-14270-00 036-15470-10 036-15100-10 036-18100-00 036-14330-00 036-15470-10 036-15100-10 036-15100-10 036-15100-10 036-15100-10 036-13560-00 036-13560-00 036-13560-00 036-13560-00 036-13120-00 036-15100-10 036-16150-00 036-14220-00 036-13470-00 036-13470-00 036-15470-10 036-15470-10 036-14470-10 036-15270-00 036-15470-10 036-15220-10 036-16270-00 036-13120-00 036-13120-00 036-15100-10 036-15390-00 036-16220-00 036-15270-00 Res M/F SMD 0805 10k 1% Res M/F SMD 0805 0e 0.125w Res M/F SMD 0805 4k7 1% Res M/F SMD 0805 4k7 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 180k 5% Res M/F SMD 0805 470e 5% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 1k2 5% Res M/F SMD 0805 2k7 5% Res M/F SMD 0805 1k 5% Res M/F SMD 0805 2k7 5% Res M/F SMD 0805 1k2 5% Res M/F SMD 0805 2k7 5% Res M/F SMD 0805 470e 5% Res M/F SMD 0805 390e 5% Res M/F SMD 0805 470e 5% Res M/F SMD 0805 2k7 5% Res M/F SMD 0805 2k7 5% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10m 5% Res M/F SMD 0805 3k3 5% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 560e 5% Res M/F SMD 0805 120e 5% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 150k 5% Res M/F SMD 0805 2k2 5% Res M/F SMD 0805 470e 5% Res M/F SMD 0805 470e 5% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 4k7 1% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 47k 1% Res M/F SMD 0805 22k 1% Res M/F SMD 0805 270k 5% Res M/F SMD 0805 120e 5% Res M/F SMD 0805 120e 5% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 39k 5% Res M/F SMD 0805 220k 5% Res M/F SMD 0805 27k 5% R142 R143 R144 R145 R146 R147 R148 R149 R595 RLY2 S10 S11 T2 U1 U2 U13 U14 U15 U16 U17 U19 U20 U21 U22 U23 X2 036-15150-10 036-15270-00 036-12390-00 036-15270-00 036-10000-00 036-14100-00 036-15100-10 036-15100-10 036-12100-10 002-10117-00 240-04021-61 240-00020-87 054-00010-20 002-10018-77 002-10003-58 240-04020-42 002-10340-64 002-74900-04 002-74900-04 002-10085-76 002-10004-83 002-10016-51 002-10004-83 002-12951-00 002-10021-42 274-01070-00 002-20068-07 209-01027-00 228-23722-01 304-07036-02 311-01042-01 311-03076-01 312-01046-05 316-02001-00 316-06430-02 316-85125-00 365-01516-01 399-00010-53 349-00010-22 352-00010-17 349-00010-24 Res M/F SMD 0805 15k 1% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 39e 5% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 0e 0.125w Res M/F SMD 0805 1k 5% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10k 1% Res M/F SMD 0805 10e 1% IC SMD TS117 Opto 8p Fpak Skt 6w Phone Jack S-Ent Hdr 2x5w Ra Pcb Mtg Xmfr SMD Ct Etal2782 IC SMD LM1877M Dual Af Pwr Amp IC SMD LM358 Dual 0-Amp Skt 44 Pin SMD Plcc IC SMD MC34064 L-Volt Sense IC SMD 74HC04D 6x Inv Buffd IC SMD 74HC04D 6x Inv Buffd IC SMD PCF8576T LCD Dvr IC SP483EEN RS485 Xcvr/Esd S08 IC SMD SSM2165-1s Preamp S0-8 IC SP483EEN RS485 Xcvr/Esd S08 IC SMD LP2951CM Adj Vltge Reg IC SMD TLE2142CD Opamp S08 Xtal 4.000MHz Hc-49u/S Lo-Prof IC MC68HC705C8AFN Otp Micro Strip A3m2544 SI Impregnated Pcb T2020/40 Multi/Ctrl Head Light Sprdr 20 Bttn T2K SII Knob A3M2530 T2K SII K/Pad T2020 SII International Lens LCD Dsply T2K FM2/TR2 Pnl M/Ctrl Hd Back T2K Pnl Frt Scrn T2020/40/50 SII Plate Cvr T2K Lbl T2K Model Id T/A Bag Plstc 150*250mm Scrw 4-20x3/8 P/P Trilobe-P BZ Nut M4 Pressed Sq S/T Bz Scrw 4-20x5/8 P/P Trilobe-P BZ 48 X2H2xx PCB Information T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited 6.2 X2H221 Rev 007 Grid Reference IPN 228-23722-02 Grid Ref PCB Circuit Diagram Grid Ref PCB Circuit Diagram B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B# B* BF1 BF2 BF3 BF4 BF5 BF6 BF7 BF8 BL1 BL2 BL3 BL4 BL5 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C15 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 D4 E7 D7 B7 E6 D6 B6 E5 D5 B5 B4 E4 N5 M5 K5 H5 N3 M3 K3 H3 K4 C4 C6 F6 P7 A7 L5 A6 C6 C5 B7 K7 P6 A4 A5 M6 B5 F4 C5 D4 F8 A4 L6 B4 D7 K5 E5 F6 G4 E5 J4 D5 D5 G5 K6 1F2 1G2 1G2 1G1 1G2 1G2 1G1 1G2 1G2 1G1 1F1 1F2 1H12 1J12 1F12 1G12 1H12 1H12 1F12 1G12 1D9 1D9 1D9 1D10 1D10 1C12 1C6 1B14 1E11 1B11 1C13 1J8 1E6 1B7 1B10 1J7 1J3 1B2 1E12 1J4 1J1 1B8 1K9 1B9 1D12 1B14 1E13 1D13 1D13 1E14 1H7 1H4 1H5 1H5 1H9 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C55 C56 C57 C58 C59 C60 C62 C67 C68 C731 C732 C733 C734 D1 D2 D3 D4 D5 F1 F2 F3 F4 F5 F6 F7 F8 J4 J5 J6 JP1 JP2 LCD1 P1 P2 P3 PHH1 PT501 PTH2 PTH3 PTH4 K7 F6 E4 E3 E4 P6 E6 D6 J4 D5 C6 F5 N5 F3 N5 D3 D3 C4 D4 D5 D5 B6 C7 A5 S3 R4 R4 R4 D6 N6 B5 G7 M5 N5 L5 J5 G5 N4 L4 J4 G4 R5 G5 L5 G6 F6 K8 G7 P5 E3 A4 S1 N4 P4 P5 1H9 1D14 1A1 1B3 1B3 1E6 1E6 1D6 1B6 1E13 1D13 1B1 1C4 1A3 1C5 1B4 1B4 1C3 1B5 1B5 1B6 1B11 1C13 1B13 1D2 1D2 1D2 1D1 1D6 1D5 1B9 1F10 1C14 1G5 1G4 1G4 1G3 1G5 1G4 1G4 1G3 1E4 1B7 1C7 1D14 1E14 1B14 1F10 1D4 1J13 1E10 1H4 1B3 1A8 1D2 1D3 1A9 1A9 1A10 T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited X2H2xx PCB Information 49 Grid Ref PCB Circuit Diagram Grid Ref PCB Circuit Diagram PTH5 PTH6 PTH7 PTH8 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 R1 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R28 R34 R35 R42 R43 R44 R53 R69 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 P7 C3 B7 D7 B6 B5 G7 H4 G7 D6 H4 E5 P6 D6 G7 H7 A6 C6 C6 B5 A4 A4 B4 A4 B5 B4 B4 B5 B6 C5 A4 B5 G6 G7 G7 G7 G6 B6 B5 R1 K6 L6 J5 J5 J5 J5 J5 J4 E6 E7 F7 F7 L5 L4 N5 N4 L6 L6 M6 M6 G6 G4 G6 1A10 1A11 1A11 1A12 1B11 1B10 1G9 1E9 1F10 1E11 1E9 1H6 1F6 1D6 1E9 1H8 1B13 1B11 1E11 1B10 1B7 1B8 1B9 1A7 1B10 1B8 1A8 1B10 1B11 1B8 1B7 1B9 1G10 1G9 1F9 1G10 1F9 1B10 1B11 1D2 1J8 1J8 1G5 1G5 1G6 1G6 1G6 1J7 1J11 1H11 1H11 1G11 1J12 1H12 1H12 1H12 1J9 1K9 1K9 1K9 1G6 1E9 1G5 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R117 R118 R119 R120 R121 R123 R124 R125 R126 R127 R128 R129 R130 R133 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R595 RLY2 S10 S11 T2 U1 U13 U14 U15 U16 U17 U19 U2 U20 G4 G6 H4 G4 D5 G6 E5 D5 E6 K6 G7 G7 F7 E7 E7 E7 H5 H4 K5 J4 E4 P5 E4 E4 P6 D6 E6 D6 D6 D6 C4 D6 C4 A6 C6 D5 E5 M5 E4 D4 D4 C4 D4 J4 D5 D5 K4 A6 G7 S3 M4 S3 S3 L4 B6 J6 L5 F7 E6 M7 C5 B4 F4 1E10 1G5 1E9 1D9 1H5 1G6 1H5 1H5 1H6 1H8 1E8 1F9 1G11 1G11 1F11 1F11 1G12 1G12 1F12 1F12 1B1 1F5 1B3 1B3 1F6 1E5 1E5 1D6 1D6 1E7 1B3 1D7 1C3 1B13 1D13 1E13 1A1 1D4 1A3 1B4 1B4 1C3 1B5 1B6 1B5 1B6 1A7 1B12 1F8 1E2 1A6 1E1 1E3 1C7 1B13 1G7 1H6 1F11 1G11 1K1 1H11 1E6 1H11 1J11 1K2 1D8 1C7 1J9 1E12 1K3 1B8 1B9 1A2 50 X2H2xx PCB Information T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited Grid Ref PCB Circuit Diagram U21 U22 U23 X2 D7 M5 D4 K7 1D12 1C5 1B6 1K4 1B4 1H8 T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited X2H2xx PCB Information 51 6.3 52 228-23722-02 PCB Top Side X2H2xx PCB Information T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited 6.4 228-23722-02 PCB Bottom Side T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited X2H2xx PCB Information 53 54 X2H2xx PCB Information T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Limited 6.5 X2H221- PCB Circuit Diagram (page 1 of 1) T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd Part B T2004 Control Heads 55 56 Part B T2004 Control Heads T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd 7 Testing the X2H2xx control heads Test equipment ■ T2020 or T2040 radio with power supply in known working order. ■ X2AM01 radio interface board in known working order. ■ Microphone, speaker and power supply for control head. ■ 8 way micromatch loom to connect X2AM01 to radio. ■ 8 way micromatch loom to connect primary head under test. ■ Radio communications test set. ■ Multimeter. ■ 20MHz oscilloscope, preferably digital storage. ■ Standard tools, screwdrivers, etc. Setting up 1. If T2004 control head under test is not configured as a primary head, temporarily fit shorting link to position JP2. 2. Connect SK1 of the X2AM01 board to connector S9 of radio logic board. 3. Connect SK3 of the X2AM01 board to connector J5 of the control head under test. 4. Connect power and microphone to the primary control head as usual. 5. Connect the radio's antenna jack to the RF input/output of the communication test set. 6. Connect a suitable 13.8VDC 10A power supply to the radio. Testing Power ■ Check there is always +13.8V on U22 pin 8 and U1 pin 14. ■ Check U22 pin 3 is high when the control head switch (volume control) is off, and around 0V when the control head is switched on. ■ Check there is 5V on U22 pin 1 when control head is on. ■ Check 1/2 VCC rail on C57 is around 2-3V. T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 Part B T2004 Control Heads 57 Microprocessor ■ Check reset line U14 pin 1 is at 5V. ■ Use oscilloscope to check for 4MHz oscillation on crystal X2 or resistor R104. ■ With micromatch cable on J5 removed, switch on control head with any key held down. On power up the display should always show software version number (2372A510). When key is released, all display segments and LEDs should flash. Audio ■ Transmit on microphone and apply audio (E.G. whistle into microphone), check for approx. -15dBm line audio on RLY2 pins 7 and 8. Radio should enter transmit mode and have normal TX deviation. "TX" should appear on the LCD. ■ With the radio in receive mode, generate a test signal of -70dBm RF level, 60% system deviation (1.5kHz for narrow band, 3kHz for wide band). Check for approx. -10dBm line audio at C2. Check Q1 base is at 0V, so PA is not muted. Check that audio level into PA on U1 pin 7 varies with volume control. Check for high level audio output on U1 pin 2. Global mute ■ Ensure link JP1 is fitted to enable global mute. ■ When not transmitting and microphone off hook (hang up stud not earthed), check that JP1 is at 5V. ■ With microphone on hook (hang up stud connected to 0V), check that JP1 is at 0V. ■ Temporarily fit a 1k ohm resistor between JP1 and U22 pin 1. Make radio receive a test signal and adjust volume so audio can be heard in control head speaker while microphone is off hook. Speaker should mute when microphone is placed on hook. Remove link resistor when finished. Data ■ Turn radio off then on using control head volume switch. Use oscilloscope to check for 5V TTL data on U21 pin 1. Note that data only lasts a few seconds after power on. ■ After power up, confirm that key presses on control head appear as 5V TTL data on U19 pin 4. Connect oscilloscope channel 1 on J5 pin 1, channel 2 on J5 pin 2. Verify differential mode data exists on RS485 line when keys are pressed. PC programming 58 ■ Connect T2000 programming cable to microphone socket, check for approx. 13.8V on microphone socket S10 pin 1. ■ Verify that radio can be read correctly with appropriate radio programming software. Part B T2004 Control Heads T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 Part C X2AM01 Radio Interface This part provides general and technical information about the X2AM01 Multi-Head Radio Interface. The following topics are covered in this part: ■ Section 1 Introduction ■ Section 2 Circuit Description ■ Section 3 I/O Connections ■ Section 4 Fitting PCB into Radio ■ Section 5 X2AM01 Multi-Head Radio Interface PCB ■ Section 6 Testing the X2AM01 radio interface T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 Part C X2AM01 Radio Interface 59 1 Introduction 1.1 The X2AM01 Multi-Head Radio Interface PCB The X2AM01 Multi-Head Radio Interface PCB is the interface between a standard T2020 or T2040 radio and the remote control heads in the T2004 Multi-Control Head system. The PCB fits inside a dummy (Clayton’s) control head, which replaces the standard control head of the radio. Only one X2AM01 Multi-Head Radio Interface PCB is used in the system. 60 Part C X2AM01 Radio Interface T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 2 Circuit Description This section provides circuit information for the X2AM01 Multi-Head Radio Interface PCB. Audio The PCB provides a balanced 600 Ohm line interface for both the Tx and Rx audio. Power The PCB is supplied with 13.8V from the radio. A single 5V supply is provided for circuitry on the X2AM01 Interface PCB only. The remote power switch line SK3-3 (controlled by the Primary head) enables the 5V regulator, which in turn draws current from the radio (SK11) and causes the radio to power up. Data A separate RS485 transmitter and receiver provide the data communications between the radio and control heads. Connections The connection to the radio is the same as for a standard T2000 control head (micromatch cable to SK1). Connection to the remote control heads is via the micromatch loom at SK3, which connects to the RJ45 Wallbox. The wallbox connects to the multi-drop cable, which connects to the RJ45 Wallbox for each control head. T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 Part C X2AM01 Radio Interface 61 3 I/O Connections This section describes the I/O connections on the board. 3.1 SK1: 8 Way Micromatch Socket to Radio Pin 3.2 Description 1 +13.0V_UNSW Unswitched 13.8V from radio 2 GND Common ground 3 RX_DATA Data from heads to radio, 5V logic levels 4 TX_DATA Data from radio to heads, 5V logic levels 5 GND Common ground 6 AF Receiver audio, approx. -4dBm 7 MIC_IN Transmitter audio, approx. -30dBm 8 N/C Not connected SK3: 8 Way Micromatch Socket to Control Heads Pin 62 Signal Signal Description 1 DATA 2A Data from heads A 2 DATA 2B Data from heads B 3 PWR SW Remote power switch, Low=power on 4 Audio Balanced audio line 5 Audio Balanced audio line 6 GND Common ground 7 DATA 1A Data to heads A 8 DATA 1B Data to heads B Part C X2AM01 Radio Interface T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 4 Fitting PCB into Radio The T2004 Multi-Control Head Installation Manual M2004-00-100-315 should be referred to for the installation process. T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 Part C X2AM01 Radio Interface 63 64 Part C X2AM01 Radio Interface T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 5 X2AM01 Multi-Head Radio Interface PCB This section contains all PCB information for the Multi-Head interface PCB. The following information is included for the board: ■ PCB parts list ■ Grid references ■ PCB layout drawings for both sides of the board ■ Circuit diagram. T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd Part B T2004 Control Heads 65 66 Part B T2004 Control Heads T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd 5.1 X2AM01 Rev 008 Parts List IPN 228-23721-01 Ref IPN Description C1 C2 C3 C6 C7 C8 C9 C10 C11 C14 C15 C18 C21 C26 C36 C39 D1 R1 R2 R3 R4 R5 R7 R8 R9 R10 R12 R13 R17 R18 R25 R26 R27 R28 R38 R42 SK1 SK3 T1 U1 U2 U4 U5 015-27100-10 015-26100-08 015-26100-08 015-23100-01 015-24100-08 015-24100-08 016-09100-01 015-26100-08 015-24100-08 015-24100-08 015-26100-08 015-26100-08 016-08100-01 015-22330-01 015-22330-01 015-23100-01 001-10284-51 036-14180-00 036-15560-00 036-14100-00 036-14150-00 036-14150-00 036-15270-00 036-12390-00 036-15270-00 036-15220-10 036-15120-10 036-15270-00 036-15560-00 036-15220-10 036-14150-00 036-14150-00 036-13150-00 036-13150-00 036-14820-10 036-15270-00 240-10000-05 240-10000-05 054-00010-20 002-10021-42 002-12951-00 002-10004-83 002-10004-83 219-02013-00 228-23721-01 365-00011-54 399-00010-51 399-00010-86 349-00020-32 353-00010-16 Cap Cer 0805 1m+80-20% Y5v 16v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100p 5% NPO 50v Cap Cer 0805 1n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Cap Elec SMD 100u 6.6*6.6 6.3v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Cap Cer 0805 1n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Cer 0805 100n 10% X7r 50v Cap Elec SMD 10m 4*5.2 16v 20% Cap Cer 0805 33p 5% NPO 50v Cap Cer 0805 33p 5% NPO 50v Cap Cer 0805 100p 5% NPO 50v Diode SMD BZX284B5V1 Zensod110 Res M/F SMD 0805 1k8 5% Res M/F SMD 0805 56k 5% Res M/F SMD 0805 1k 5% Res M/F SMD 0805 1k5 5% Res M/F SMD 0805 1k5 5% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 39e 5% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 22k 1% Res M/F SMD 0805 12k 1% Res M/F SMD 0805 27k 5% Res M/F SMD 0805 56k 5% Res M/F SMD 0805 22k 1% Res M/F SMD 0805 1k5 5% Res M/F SMD 0805 1k5 5% Res M/F SMD 0805 150e 5% Res M/F SMD 0805 150e 5% Res M/F SMD 0805 8k2 1% Res M/F SMD 0805 27k 5% Conn SMD 8w 2r Skt M/Match Conn SMD 8w 2r Skt M/Match Xmfr SMD Ct Etal2782 IC SMD TLE2142CD Opamp S08 IC SMD LP2951CM Adj Vltge Reg IC SP483EEN RS485 Xcvr/Esd S08 IC SP483EEN RS485 Xcvr/Esd S08 T2K 8way Loom Logic-Ctrl Hd Pcb T2020/40 M/Ctrl Hd Rad I/F Lbl White R1556/2 90*24mm Bag Plstc 75*100mm Bag Static Shlding 127x203mm Scrw M3*8mm T/T P/P Bz Wshr M3 Fibre 8mm Od*1.5mm T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd Part B T2004 Control Heads 67 68 Part B T2004 Control Heads T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd 5.2 X2AM01 Rev 008 Grid Reference Ref PCB Circuit Diagram C1 C2 C3 C6 C7 C8 C9 C10 C11 C14 C15 C18 C21 C26 C36 C39 D1 MT1 MT2 MT3 MT4 R1 R2 R3 R4 R5 R7 R8 R9 R10 R12 R13 R17 R18 R25 R26 R27 R28 R38 R42 SK1 SK3 T1 TP1 TP2 U1 U2 U4 U5 A2 B3 B2 C1 D4 E2 A1 C4 G2 G3 B1 C1 A4 C1 B1 B1 F1 D3 D2 G2 G3 C4 C1 C4 B2 C2 C1 C1 C1 A2 A2 C1 A1 C4 B3 C3 C3 C2 C4 C2 F4 F2 D1 C1 C1 B1 B4 B2 B3 1C3 1E6 1B9 1C6 1D8 1D8 1C2 1E3 1D9 1D10 1B7 1B6 1E5 1C6 1C4 1C5 1F8 1D8 1D8 1D9 1D10 1C3 1C6 1B2 1G7 1F7 1C6 1D6 1C6 1D2 1C3 1C5 1C4 1B3 1E7 1E7 1E7 1F7 1B3 1C5 1B2 1G2 1C2 1D2 1E2 1C9 1G9 1F9 1E9 1C7 1D4 1C7 1B9 1C4 1C6 1E5 1F7 1E7 T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd Part B T2004 Control Heads 69 5.3 70 228-23721-01 PCB Top Side Part B T2004 Control Heads T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd 5.4 228-23721-01 PCB Bottom Side T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd Part B T2004 Control Heads 71 5.5 72 X2MA01 PCB Circuit Diagram (page 1 of 1) Part B T2004 Control Heads T2004 Multi-Control Head System Manual May 2004 © Tait Electronics Ltd 6 Testing the X2AM01 radio interface Test equipment ■ T2020 or T2040 radio with power supply in known working order. ■ X2H2x1 Primary control head in known working order. ■ Microphone, speaker and power supply for control head. ■ 8 way micromatch loom to connect X2AM01 to radio. ■ 8 way micromatch loom to connect primary head. ■ Radio communications test set. ■ Multimeter. ■ 20MHz oscilloscope, preferably digital storage. ■ Standard tools, screwdrivers, etc. Setting up 7. Connect SK1 of the X2AM01 board to connector S9 of radio logic board. 8. Connect SK3 of the X2AM01 board to connector J5 of the primary control head. 9. Connect power and microphone to the primary control head as usual. 10. Connect the radio's antenna jack to the RF input/output of the communication test set. 11. Connect a suitable 13.8VDC 10A power supply to the radio. Testing Power ■ Check there is always +13.8V on U2 pin 8. ■ Check U2 pin 3 is high when the control head switch (volume control) is off, and around 0V when the control head is switched on. ■ Check there is 5V on U2 pin 1 when control head is on. ■ Check 1/2 VCC rail at TP1 is around 2-3V. ■ Check radio turns off (0V on radio logic board S14 pin 1) when control head is off, check radio is on (+13.8V on S14 pin 1) when control head is on. T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004 Part B T2004 Control Heads 73 Audio ■ Transmit on microphone and apply audio (E.G. whistle into microphone), check for approx. -15dBm line audio at TP2, check for approx. -30dBm mic audio on SK1 pin 7. Radio should enter transmit mode and have normal TX deviation. ■ With the radio in receive mode, generate a test signal of -70dBm RF level, 60% system deviation (1.5kHz for narrow band, 3kHz for wide band). Check for approx. -4dBm of receiver audio on SK1 pin 6. Check for approx. -10dBm line audio on TP2. Ensure audio appears on 600 ohm balanced line (measure between SK3 pins 4 and 5). Data 74 ■ Turn radio off then on using control head volume switch. Use oscilloscope to check for 5V TTL data on SK1 pin 4. Note that data only lasts a few seconds after power on. Connect oscilloscope channel 1 on SK3 pin 7, channel 2 on SK3 pin 8. Verify differential mode data exists on RS485 line at radio power on. ■ After power up, confirm that key presses on control head appear as 5V TTL data on SK1 pin 3. Part B T2004 Control Heads T2004 Multi-Control Head System Manual © Tait Electronics Ltd May 2004
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