Barrett 900 Series Technical Manual
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Barrett 900 Series Technical Manual

Hf transceivers and receivers
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Barrett 900 series HF transceivers and receivers
BARRETT 930, 950 remote control ( trunk mount) HF transceivers
Head office:
Barrett Communications Pty Ltd
10 Port Kembla Drive, Bibra Lake WA 6163
P O Box 1214, Bibra Lake WA 6965
AUSTRALIA
Toll Free Tel: 1800 999 570
Tel: (61-8) 9 434 1700
Fax: (61-8) 9 418 6757
Technical manual
BARRETT 930, 950, 980 local control HF transceivers
BARRETT 950M HF transceiver module
BARRETT 950MR HF receiver
BARRETT 940 HF portable transceiver
©
BARRETT COMMUNICATIONS
© Barrett Communications
BCM90000/4
BARRETT 900 SERIES TRANSCEIVERS
European office
Barrett Europe Limited
19 Lenten Street
Alton, Hampshire
GU34 1HG
UNITED KINGDOM
Tel: (44) 1420 542254
Fax: (44) 1420 54337, P3
:
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Summary of Contents for Barrett 900 Series

  • Page 1 Technical manual Barrett 900 series HF transceivers and receivers BARRETT 930, 950, 980 local control HF transceivers BARRETT 930, 950 remote control ( trunk mount) HF transceivers BARRETT 950M HF transceiver module BARRETT 950MR HF receiver BARRETT 940 HF portable transceiver ©...

  • Page 2: Table Of Contents

    BARRETT 900 SERIES TRANSCEIVERS Specifications ...........................5 General Specifications....................5 Receiver Specifications ....................7 Transmitter Specifications ....................8 Introduction..
  • Page 3 Features and configurations unique to transceiver models .............49 Barrett 950 transceivers fitted with high stability option - P/N BC95001 and BC95003 ....49 Barrett 950M transceiver module - P/N BC95004 ..............49 Barrett 950MR receivers ....
  • Page 4 940 multiple-use distribution unit parts list ......Barrett P/N BCA94010 ......152 940 charge reg. 13Ah / 12V DC input PCB overlay.....Barrett P/N BCA94021 ......153 940 charge reg. 13Ah / 12V DC input PCB schematic ..Barrett P/N BCA94021 ......154 940 battery charger PCB parts list ....

  • Page 5: Specifications

    BARRETT 900 SERIES TRANSCEIVERS Specifications General Specifications Equipment BARRETT 980 GMDSS transceiver. BARRETT 950 transceiver local and remote control models BARRETT transceiver local and remote control models BARRETT 950M transceiver module BARRETT 950MR receiver module (disregard references to transmit specifications and descriptions)
  • Page 6 BARRETT 900 SERIES TRANSCEIVERS Weight 930, 950 and 980 3.6 Kg. 950MR1 3.2Kg. portable transceiver 3.9 Kg. 13 Ah NiMH battery pack 2.7 Kg Optional 940 automatic antenna tuner 1.8 Kg. Dimensions 930 - 950 - 980 250 mm x 75 mm x 300 mm...

  • Page 7: Receiver Specifications

    BARRETT 900 SERIES TRANSCEIVERS Receiver Specifications Sensitivity 0.256uV (-119dBm) for 10dB SINAD - J3E Mode (With RF pre-amp on) Selectivity J3E -1kHz and + 4kHz better than 60dB Selectivity F1B (optional) -500Hz and + 500Hz better than 45dB Desensitisation -1kHz and + 4kHz...

  • Page 8: Transmitter Specifications

    BARRETT 900 SERIES TRANSCEIVERS Transmitter Specifications RF Output Power 930 - 950 100 W PEP two tone ± 1 dB 125 W PEP voice ± 1 dB 10 W PEP two tone ± 1 dB 12 W PEP voice ± 1 dB 100 W PEP two tone ±1.5 dB...

  • Page 9: Introduction

    BARRETT 900 SERIES TRANSCEIVERS Introduction This technical manual covers the Barrett 950 local and remote control transceiver, the Barrett 980 GMDSS transceiver, the Barrett 940 man-pack transceiver, the Barrett 930 local and remote control transceiver, the Barrett 950M transceiver module and the 950MR receivers. They have largely identical hardware and only vary by key function and operational software and in the case of the 940 the mounting hardware and enclosure.
  • Page 10 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER DATE ECN REFERENCE 25-1-99 900B64A3.PCB SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET DJS (PE) 1 OF 1 DRAWING TITLE BARRETT 900 PAGE 10...

  • Page 11: Overview

    BARRETT 900 SERIES TRANSCEIVERS Overview All 900 series transceivers and receivers are made up of several common building blocks. Apart from the 940 man-pack transceiver they are all constructed with a common chassis. This manual deals with each module and has a separate section describing sections of transceivers and receivers that are unique to that transceiver or receiver.

  • Page 12: Pa Pcb

    940 front panel The 940 front panel is a Barrett 900 series remote head fitted into an "O" ringed aluminium front panel. The front half of the remote head plastic front panel is retained the rear half is removed. A special loom is fitted to the remote head PCB to connect to the RF/Audio PCB.

  • Page 13: Technical Description

    BARRETT 900 SERIES TRANSCEIVERS Technical description Microprocessor PCB The Microprocessor PCB incorporates the microprocessor unit which controls the transceiver system, the synthesiser, which provides three stable local oscillator sources, the selcall encoder/decoder which generates and demodulates selcall signals, and the audio syllabic mute and transmitter power control.
  • Page 14 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER DATE ECN REFERENCE 900B61A2.PCB 5-8-98 SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 900 MICRO BOARD MICROCONTROLLER PAGE 14...

  • Page 15: Ddfs And Vco

    BARRETT 900 SERIES TRANSCEIVERS The microprocessor has four sets of ports of its own used as follows:- AN0 to AN7 . These analogue input ports monitor transmit VSWR using voltages SWR+ and SWR-, receive signal strength using voltage AGC, synthesiser lock state using voltage VCO Lock and battery voltage utilising a voltage derived from a voltage divider consisting of R2 and R35.
  • Page 16 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER DATE ECN REFERENCE 900B58A2.PCB 6-8-98 SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 950 MICRO BOARD DDFS PAGE 16...

  • Page 17: Selcall (If Enabled)

    BARRETT 900 SERIES TRANSCEIVERS 4.1.7 Selcall (if enabled) The selective system utilises Frequency Shift Keying (FSK) as the modulation technique. The design of the encoder/decoder allows individual channels to be set for operation on either the Australian Standard Selcall format(Codan comaptible, based on CCIR 493-4) or the true CCIR493-4 format and its associated tones.

  • Page 18: Pa Alc Control Voltage Pwr Adj

    BARRETT 900 SERIES TRANSCEIVERS Mute attack timing is controlled by C191 and R121. Release timing is set by C191 and R122 and microprocessor introduced delays. 4.1.9 PA ALC control voltage PWR ADJ The signal PWR ADJ from the DAC U38 via buffer U10B is the calibrating voltage for the selcall phase lock in receive but changes to the PA ALC power adjustment control in transmit.

  • Page 19: Rf / Audio Pcb

    BARRETT 900 SERIES TRANSCEIVERS RF / Audio PCB 4.2.1 RF section The RF section of the RF / Audio PCB provides the complete exciter and receiver for the transceiver. It includes:- First mixer Roofing filter at 45 MHz 45 MHz IF amplifier with AGC...
  • Page 20 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER DATE ECN REFERENCE 25-1-99 900B62A4.PCB SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 900 RF AUDIO BOARD RF SECTION PAGE 20...

  • Page 21: Second Mixer And Bandpass Crystal Filter

    BARRETT 900 SERIES TRANSCEIVERS 4.2.1.2 Second mixer and bandpass crystal filter. The 45 MHz signal from the IF is converted to 455 kHz by the second mixer U13 which is a double balanced ring mixer, and is fed with a +7 dBm oscillator signal at 45.455 MHz from the master oscillator on the microprocessor PCB.

  • Page 22: Audio Path

    BARRETT 900 SERIES TRANSCEIVERS 4.2.2.1 Audio path receive the demodulated Rx audio signal at a level of 50 mV P-P is fed into amplifier U22:B which raises this level by 5dB. This signal is then split and fed to the main signal path and to the microprocessor PCB via U22:A, where it is used in the mute and selcall system.
  • Page 23 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER ECN REFERENCE DATE 900B63A4.PCB 16-2-99 SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 900 RF AUDIO BOARD AUDIO SECTION PAGE 23...

  • Page 24: Pa Pcb

    BARRETT 900 SERIES TRANSCEIVERS PA PCB The Power Amplifier raises the power from the exciter to specified output power. It also provides harmonic filtering for the transmitter, and band filtering and a 8 dB RF pre-amp for the receiver. 4.3.1 Gain control amp The signal from the exciter at a level of approx.
  • Page 25 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER ECN REFERENCE DATE 900B57A3.PCB 16-2-99 SCALE DIMENSIONING BARRETT PART NO 9603 DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 900 PA BOARD PAGE 25...

  • Page 26: Front Panel

    BARRETT 900 SERIES TRANSCEIVERS Front panel The Front Panel PCB allows user control of the transceiver. An integral rubber keypad provides functional control. The LCD display presents channel, frequency and status information and the five status LED's indicate mode and Tx / Rx state. Backlighting for the LCD and keys is provided and a volume control varies the audio level from the loudspeaker.
  • Page 27 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER DATE ECN REFERENCE 900B59A1.PCB 24-12-97 SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 900 FRONT PANEL PAGE 27...

  • Page 28: Remote Control Head

    BARRETT 900 SERIES TRANSCEIVERS Remote control head The on/off switch on the volume control potentiometer completes the circuit to ground and activates the power relay on the PA in the transceiver's main body through the remote control cable via line RH PWR SW.
  • Page 29 BARRETT 900 SERIES TRANSCEIVERS SYSTEM BLOCK DIAGRAM DRAWING NUMBER DATE ECN REFERENCE 900B60A1.PCB 24-12-97 SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET 1 OF 1 DRAWING TITLE BARRETT 900 REMOTE HEAD PAGE 29...

  • Page 30: Maintenance

    BARRETT 900 SERIES TRANSCEIVERS Maintenance Introduction This section provides maintenance and fault finding procedures that can be carried out on Barrett 900 series transceivers. Printed Circuit Board (PCB) maintenance Barrett 900 series transceivers use four layer PCB's for the microprocessor and RF/Audio sections and two layer PCB's, for the PA , front panel and remote head.

  • Page 31: Cmos Devices

    BARRETT 900 SERIES TRANSCEIVERS CMOS devices A number of Complementary Metal Oxide Semiconductor (CMOS) devices are used in the transceiver and most of them have built-in protection. However, their extremely high open-circuit impedance makes them susceptible to damage from static charges. Care must be used when handling these devices during servicing.

  • Page 32: Fault Diagnosis

    IC. If a fault can be traced to one PCB but no further then consider using Barrett Communications' PCB and module exchange service.

  • Page 33: Transceiver Will Not Power Up

    BARRETT 900 SERIES TRANSCEIVERS 5.7.2 Transceiver will not power up Plug the transceiver into a 13.8 VDC power supply, switch the transceiver on, if the transceiver is totally inactive:- Check voltage on the input power cable on the PA PCB is between 11.8 VDC and 14.5 VDC.
  • Page 34 BARRETT 900 SERIES TRANSCEIVERS Voltage table Location Drawing No. Supply Test Voltage Voltage Source PCB rail point Receive Transmit name regulator or transistor 900S18##.PCB +13.8 V +13.8 V external nominal nominal source 900S18##.PCB +10V +/- +10V +/- PA - U5 0.2V...

  • Page 35: Transceiver Will Not Receive But Displays Ok

    On power on the front panel LCD display or remote head LCD display will initially show a banner "Barrett 900 Transceiver" and the RX and AM LEDs will be lit. This is generated, as a power on message, by the front panel and remote head micro, before the main microprocessor in the transceiver starts communicating with it.

  • Page 36: Transceiver Turns On, Internal Voltages Are Normal, But No Lcd Display

    CHECK EPROM Barrett P/N BCS90100 which has been programmed entirely with OOH data at each address. With such an EPROM fitted the microprocessor will...

  • Page 37: Vco Faults

    BARRETT 900 SERIES TRANSCEIVERS 5.7.6 VCO faults If the transceiver beeps satisfactorily, the status LED's are correct and receiver noise is present but the display indicates HARDWARE FAILURE VCO LOCK LOST, then there is a problem with the frequency synthesiser. The red LED on the microprocessor should be illuminated under these circumstances.

  • Page 38: Replacement Of Pa Output And Driver Transistors

    BARRETT 900 SERIES TRANSCEIVERS 5.7.8 Replacement of PA output and driver transistors Under normal operating conditions PA and Driver transistors will last indefinitely. The ALC circuit will fully protect these transistors from incorrect antenna loads. In data mode, if the cooling fan fails for any reason, a high temperature power reducing circuit will protect these devices from overheating.
  • Page 39 BARRETT 900 SERIES TRANSCEIVERS Place solder tags and spring washers back in position and fit all four screws in place. Go around all four screws in turn, gradually increasing torque until the transistors are firmly seated. Solder the BD139 leads.

  • Page 40: Adjustments

    BARRETT 900 SERIES TRANSCEIVERS Adjustments Following PCB repair, it may be necessary to realign or recheck adjustable components on the relevant PCBs. This section describes the methods employed to ensure that the reinstated PCB's conform to the original specification. 5.8.1 Front panel There are no adjustments on the front panel.

  • Page 41: Dac Low Pass Filter

    BARRETT 900 SERIES TRANSCEIVERS 5.8.2.6 DAC Low pass filter If a spectrum analyzer with tracking generator is available, this filter can easily be adjusted by adjusting the two notch frequencies of 12MHz and 18MHz. The transceiver should be turned off while performing this adjustment.

  • Page 42: If Inductors

    BARRETT 900 SERIES TRANSCEIVERS 5.8.3.3 IF Inductors Inductors L5 and L9 can be peaked on a weak signal. As there is a very slight interaction they should be re- peaked after initial setting. Leave L1 alone as this is part of the matching network from the crystal filter to the 45 MHz IF amplifier.

  • Page 43: Power Level Adjustment

    BARRETT 900 SERIES TRANSCEIVERS 5.8.4.3 Power level adjustment The high power adjust set pot, RV4 sets the power level at 100 W. In the case of the 940 only low power is used and it is set between 10 W and 35 W. This should not be adjusted without access to a two-tone test source and a peak reading watt meter.

  • Page 44: Software Programming And Options

    Selcall with external alarm 930 transceivers can be programmed using the internal programmer within the transceiver, by using the Barrett 900 Series programming software or by cloning using cloning cable Barrett P/N BCA90024 from other 930 transceivers. Barrett 940 transceivers Pack 1 ------------ All 940 features.

  • Page 45: Internal Jumper Settings

    Internal jumper settings Standard jumpers locations (no options fitted) The 900 series transceivers have only one jumper fitted in the standard configuration, this being jumper JP1 on the RF/Audio PCB. This jumper must be fitted if scrambler option is fitted. (If this Jumper is removed no Rx audio will be heard in the receiver and there will be no RF output as the audio path is truncated).

  • Page 46: Internal Options

    BARRETT 900 SERIES TRANSCEIVERS Internal options Internal scrambler option P/N BCA90031 - available for 940 and 950 transceivers After removing the jumper JP1 on the RF/Audio PCB, solder the supplied PCB pins into test points TP9,12,15, and TP24 on the RF/Audio PCB. The optional scrambler PCB is then fitted, the connector on the scrambler PCB mating with the accessory connector P4 and the PCB pins fitted above mating with the marked holes.
  • Page 47 BARRETT 900 SERIES TRANSCEIVERS Fitting internal scrambler option TP24 TP12 TP15 PAGE 47...

  • Page 48: Internal Gps Receiver Option

    BARRETT 900 SERIES TRANSCEIVERS Internal GPS receiver option P/N BCA90030 available for 950 and 980 transceivers The GPS receiver is mounted on the ALE/GPS mother board which in turn is mounted on the microprocessor PCB, using the screws and stand-offs supplied, and plugged into the 14 way connector GPS1.

  • Page 49: Features And Configurations Unique To Transceiver Models

    It is supplied standard with GAL Level 3 which enables RS-232 control and is fitted with a high stability TCXO/DCXO. The Barrett 950M is primarily for use with the Barrett 960 telephone interconnect but can be used in a variety of remote control applications where a basic HF transceiver module is required.

  • Page 50: Barrett 940 Man-Pack

    Barrett 940 man-pack - P/N BC94001 The Barrett 940 man-pack is technically identical to the Barrett 950 but has the PA set between 10 and 35 W output. In addition it is fitted with the high stability TCXO/DCXO as standard and has a switch mode regulator fitted to the microprocessor PCB in place of the normal regulators for low power consumption purposes.

  • Page 51: Multiple-Use Distribution Unit Barrett P/N Bca94010

    Introduction The Barrett 940 MkII Tuner is designed to interface the 940 portable transceiver to either a vertical whip or a long wire antenna. The tuner requires only a power input, a RF feed and a tune line which when pulled to ground will initiate a tune command.

  • Page 52: Barrett 980 Gmdss Transceiver

    500Hz filter for F1B (AFSK) operation fitted as standard. It can also be supplied with a 300 W switch mode power supply fitted in a standard 900 series enclosure. This switch mode power supply has an input voltage of 24 VDC and provides galvanic isolation of the transceiver from the power as required by GMDSS regulations.

  • Page 53: Accessory Interface Unit - P/N Bca90016

    GPS to be connected as well as an external alarm and cross mute connection. The full 25 way accessory connector is duplicated by the connector on the accessory interface to enable data and other ancillary products to be connected using the standard Barrett 25 way cables (P/N BCA90021/22). CW Key...

  • Page 54: Auxiliary Connector

    Note 2:- These outputs provide channel information for use with antenna select units such as the BARRETT 916. The outputs are octal coded 0 to FF representing the least significant digit of the channel number selected. i.e. octal 0 for channel 1, octal 1 for channels 2, octal 3 for channels 2, to...

  • Page 55: Barrett 930 Transceivers

    Note1:- These outputs provide channel information for use with antenna select units such as the BARRETT 916. The outputs are octal coded 0 to FF representing the least significant digit of the channel number selected. i.e. octal 0 for channel 1, octal 1 for channels 2, octal 3 for channels 2, to octal FF for channel 16.

  • Page 56: Barrett 940 Manpack Transceivers

    BARRETT 900 SERIES TRANSCEIVERS 11.3 Barrett 940 manpack transceivers Barrett 940 manpack portable transceiver P/N BC94000 / BC94001 8 pin waterproof panel mounted plug Name Description of function Level Option required to activate Ground Ground None Rx Data RS-232 data input (for cloning/programming function only)

  • Page 57: Circuit Diagrams, Overlays And Parts Lists

    12.0 Circuit diagrams, overlays and parts lists Active component outlines DRAWING NUMBER DATE ECN REFERENCE 3-2-99 900S109A0.PCB SCALE DIMENSIONING BARRETT PART NO DRAWN DESIGNED SHEET DJS(PE) RAG KAE 1 OF 1 DRAWING TITLE DISCRETE SEMICONDUCTORS IN BARRETT 900 SERIES TRANSCEIVERS PAGE 57...

  • Page 58: Rf/Audio Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS RF/Audio PCB overlay - showing optional narrow filter components. PAGE 58...

  • Page 59: Rf/Audio Schematic

    BARRETT 900 SERIES TRANSCEIVERS RF-AUDIO Schematic - Showing optional narrow filter components. See File: RF-AUDIO-BOARD-SCHEMATICS.pdf PAGE 59...
  • Page 60 BARRETT 900 SERIES TRANSCEIVERS This page has been intentionally left blank PAGE 60...

  • Page 61: Rf/Audio Parts List - Showing Optional Narrow Filter Components

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 1 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ----------------------------------------------------------------------------------------------------------------------------- ----------- CAP SMD 1206 0.1uF CP-00916 CAP SMD 1206 1.0uF CERAMIC...
  • Page 62 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 2 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 0805 1nF CP-00915 CAP SMD 1206 10nF CP-00951...
  • Page 63 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 3 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C101 CAP SMD 0805 15pF CP-00938 C102 CAP SMD 0805 180pF...
  • Page 64 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 4 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C151 CAP SMD 1206 2n2F CP-00937 C152 CAP SMD 1206 0.1uF...
  • Page 65 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 5 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C204 CAP SMD 1206 0.1uF CP-00916 C205 CAP SMD 1206 0.1uF...
  • Page 66 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 6 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CHOKE SMD 100uH IN-03601 HEADER BOX 14 PIN CN-04144 HEADER SOCKET 50 PIN...
  • Page 67 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 7 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- RES SMD 1206 100K RE-00170 RES SMD 1206 1R0 RE-00090...
  • Page 68 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 8 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- RES SMD 1206 820R RE-00102 RES SMD 1206 33K RE-00155...
  • Page 69 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 9 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- R120 RES SMD 1206 10K RE-00150 R121 RES SMD 1206 68K...
  • Page 70 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 10 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- R173 RES SMD 1206 4K7 RE-00128 R174 RES SMD 1206 10K...
  • Page 71 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 RF/AUDIO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P85A7 Issue A7 Sheet 11 of 11 Assembly P/N: SA-09933 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- R229 RES SMD 1206 10K RE-00150 R230 RES SMD 1206 180K...

  • Page 72: Microprocessor Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS Microprocessor PCB overlay - showing TCXO. PAGE 72...

  • Page 73: Microprocessor Schematic

    BARRETT 900 SERIES TRANSCEIVERS Microprocessor Schematic - Showing optional switch mode regulator (940) and TCXO. See File: MICRO-BOARD SCHEMATIC.pdf PAGE 73...
  • Page 74 BARRETT 900 SERIES TRANSCEIVERS This page has been intentionally left blank PAGE 74...

  • Page 75: Microprocessor Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 1 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP 470uF 16V ELECTRO RB CP-01755 CAP SMD 1206 0.1uF...
  • Page 76 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 2 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD TANT 10uF...
  • Page 77 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 3 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C114 CAP SMD TANT 1uF...
  • Page 78 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 4 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C162 CAP SMD 0805 1nF...
  • Page 79 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 5 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C210 CAP SMD 0850 1nF...
  • Page 80 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 6 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C255 CAP SMD TANT 10uF...
  • Page 81 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 7 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CHOKE 10uH...
  • Page 82 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 8 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- RES SMD 1206 130K...
  • Page 83 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 9 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- RES SMD 1206 10K...
  • Page 84 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 10 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- R125 RES SMD 1206 220K...
  • Page 85 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 11 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- R216 RES SMD 1206 2K...
  • Page 86 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 MICRO BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P79A7 Issue A7 Sheet 12 of 12 Assembly P/N: SA-09929 DTCXO/LinReg (DLR) SA-09931 XTAL/LinReg (XLR) SA-09932 DTCXO/SMPS (DSM) ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- IC 74HC132 SMD...

  • Page 87: Pa Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS PA PCB overlay PAGE 87...
  • Page 88 BARRETT 900 SERIES TRANSCEIVERS This page has been intentionally left blank PAGE 88...

  • Page 89: Pa Schematic

    BARRETT 900 SERIES TRANSCEIVERS PA schematic See File: PA-SCHEMATIC.pdf PAGE 89...
  • Page 90 BARRETT 900 SERIES TRANSCEIVERS This page has been intentionally left blank PAGE 90...

  • Page 91: Pa Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 1 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 1206 0.1uF 5% 63V...
  • Page 92 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 2 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 1206 0.1uF 5% 63V CP-00916 CAP SMD 1206 0.1uF 5% 63V...
  • Page 93 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 3 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C112 CAP SMD 1206 0.1uF 5% 63V...
  • Page 94 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 4 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C171 CAP 15Pf SMD PHILIPS 2238-971-11525...
  • Page 95 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 5 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- C224 CAP 220pF SMD PHILIPS 2238-971-11541 CP-00062...
  • Page 96 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST --------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 6 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA --------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR --------------------------------------------------------------------------------------------------------------------------------------- COIL 1.94uH 18 TURN 3000B CORE IN-03129 COIL 3.49uH 24 TURN 3000B CORE...
  • Page 97 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 PA BOARD PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P82A7 Issue A7 Sheet 7 of 8 Assembly P/N: SA-09935 STANDARD 900 PA SA-09936 940 PA ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- RES SMD 1206 5% 10R...
  • Page 98 IC-02501 SCR1 THYRISTOR SMD P0102AL TY-02541 TRANSFORMER P.A. 6/2+2 TURNS TF-03119 TRANSFORMER P.A. 2+2+2 TURNS TF-03120 OUTPUT TRANSFORMER FOR 900 SERIES TF-03121 OUTPUT TRANSFORMER FOR 940 TF-94003 TRANSFORMER P.A. 20+1 TURNS TF-30672 TRANSFORMER P.A. 4+4+4 TURNS TF-03102 THERMISTOR TYPE P.T.C...

  • Page 99: Front Panel Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS Front panel PCB overlay PAGE 99...

  • Page 100: Front Panel Schematic

    BARRETT 900 SERIES TRANSCEIVERS Front Panel Schematic 900 Front Panel Schematic Drawing No: 900516A1 PAGE 100...

  • Page 101: Front Panel Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 FRONT PANEL PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Issue A12 Sheet 1 of 2 PCB P/N: PC-900P10A12 Assembly P/N: SA-09907 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 0805 15pF CP-00938 CAP SMD 0805 15pF CP-00938 CAP SMD 1206 0.1uF...
  • Page 102 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 FRONT PANEL PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Issue A12 Sheet 2 of 2 PCB P/N: PC-900P10A12 Assembly P/N: SA-09907 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- TRANSISTOR SMD BC807 TR-02229 FET SMD 2N7002 LT-1 TR-02282...

  • Page 103: Remote Control Head Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS Remote Control Head PCB overlay PAGE 103...

  • Page 104: Remote Control Head Schematic

    BARRETT 900 SERIES TRANSCEIVERS Remote Control Head Schematic 900 Remote Control Head Schematic Drawing No: 900517A2 PAGE 104...

  • Page 105: Remote Control Head Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 REMOTE HEAD PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Issue A13 Sheet 1 of 3 PCB P/N: PC-900P11A13 Assembly P/N: SA-09926 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 0805 15pF CP-00938 CAP SMD 0805 15pF CP-00938 CAP SMD 1206 0.1uF...
  • Page 106 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 REMOTE HEAD PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Issue A13 Sheet 2 of 3 PCB P/N: PC-900P11A13 Assembly P/N: SA-09926 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CHOKE SMD 100uH IN-03605 CHOKE SMD 100uH IN-03605 CHOKE SMD 100uH...
  • Page 107 BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 REMOTE HEAD PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P11A13 Issue A13 Sheet 3 of 3 Assembly P/N: SA-09926 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- THERMISTOR 10K TH-02532 IC PIC16C55 SMD IC-02745 IC M3004 SMD...

  • Page 108: Scrambler Pcb Overlay Barrett P/N Bca94031

    BARRETT 900 SERIES TRANSCEIVERS Scrambler PCB overlay PAGE 108...

  • Page 109: Scrambler Schematic

    BARRETT 900 SERIES TRANSCEIVERS Scrambler Schematic 900 Scrambler Module Schematic 900D54A5 PAGE 109...

  • Page 110: Scrambler Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 SCRAMBLER PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-900P55A5 Issue A5 Sheet 1 of 1 ssembly P/N: BCA90031 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENT DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 0805 33pF CP-00928 CAP SMD 0805 33pF CP-00928 CAP SMD 1206 0.1uF...

  • Page 111: Gps/Ale Motherboard Overlay

    BARRETT 900 SERIES TRANSCEIVERS GPS/ALE Motherboard Overlay PAGE 111...

  • Page 112: Gps/Ale Motherboard Schematic

    BARRETT 900 SERIES TRANSCEIVERS GPS/ALE Motherboard Schematic 900 GPS/ALE Schematic PAGE 112...

  • Page 113: Gps/Ale Motherboard Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 ALE / GPS Interface PCB ----------------------------- ---------------- ------------------------------------------------------------------------------------------- PCB P/N: 900P50A3.PCB Issue 1 Sheet 1 of 1 Assembly P/N ------------------------------------------------------------------------------------------------------------------- ---------------- ----- Component Description Barrett P/N Designator ---------------- ---------------- -------------------------------------------------------------------------------------------------------- CAP 0.2" LS 0.1uF 1018 CAP TANT 0.2"...

  • Page 114: 950Mr Low Pass Filter/Power Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS 950MR Low Pass Filter/Power PCB overlay PAGE 114...

  • Page 115: 950Mr Low Pass Filter/Power Pcb Schematic

    BARRETT 900 SERIES TRANSCEIVERS 950MR Low Pass Filter/Power PCB schematic See File: 900MR-FILTERBOARD-SCHEMATIC.pdf PAGE 115...
  • Page 116 BARRETT 900 SERIES TRANSCEIVERS This page has been intentionally left blank PAGE 116...

  • Page 117: 950Mr Low Pass Filter/Power Pcb Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 950MR LOW PASS FILTER PCB --------- -------- ----------------------------------------------------------------------------------------------------------------------- PCB P/N: Issue 1 Sheet 1 of 4 900P102A0.PCB Assembly P/N 9934 ----------------- -------- --------------------------------------------------------------------------------------------------------------- Component Description Barrett P/N Designator -------------------- -------- ------------------------------------------------------------------------------------------------------------ CAP ELECTRO RB 220uF 35V...
  • Page 118 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950MR LOW PASS FILTER PCB ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: 900P102A0.PCB Issue 1 Sheet 2 of 4 Assembly P/N 9934 ---------------------------------------------------------------------------------------------------------------------------------------- Component Description Barrett P/N Designator ---------------------------------------------------------------------------------------------------------------------------------------- C136 CAP SMD 1206 0.1uF 5% 63V 0916 C137 CAP SMD 1206 0.1uF 5% 63V...
  • Page 119 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950MR LOW PASS FILTER PCB ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: 900P102A0.PCB Issue 1 Sheet 3 of 4 Assembly P/N 9934 ---------------------------------------------------------------------------------------------------------------------------------------- Component Description Barrett P/N Designator ---------------------------------------------------------------------------------------------------------------------------------------- C199 CAP SILVER MICA 10pF 500V 2150 C200 CAP SILVER MICA 180pF 500V...
  • Page 120 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950MR LOW PASS FILTER PCB ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: 900P102A0.PCB Issue 1 Sheet 4 of 4 Assembly P/N 9934 ---------------------------------------------------------------------------------------------------------------------------------------- Component Description Barrett P/N Designator ---------------------------------------------------------------------------------------------------------------------------------------- COIL 1.94uH 18 TURN 3000B CORE 3129 COIL 3.49uH 24 TURN 3000B CORE...

  • Page 121: 980Psu Dc/Dc Switch Mode Power Supply Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS 980PSU DC/DC Switch Mode Power Supply PCB Overlay PAGE 121...

  • Page 122: 980Psu Dc/Dc Switch Mode Power Supply Schematic

    BARRETT 900 SERIES TRANSCEIVERS 980PSU DC/DC Switch Mode Power Supply Schematic 980 24/13.8VDC SMPSU PAGE 122...

  • Page 123: 980Psu Dc/Dc Switch Mode Power Supply Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 Switch mode supply PCB -------------------- ---------------- ---------------------------------------------------------------------------------------------------- Issue1 Sheet 1 of 1 900 Switch mode supply PCB Assembly P/N 9941 ------------------------------------------------------------------------------------------------------------------- ---------------- ----- Component Description Barrett Designator ----------------------------- ---------------- ------------------------------------------------------------------------------------------- Cap Elect 35v 220Uf...
  • Page 124 BARRETT 900 SERIES TRANSCEIVERS 930, 950, 980 Chassis Explosion Diagram Assembly: Microprocessor Board 950 Hi Stability - 9929.001 - 9939.001 930/950 - 9931.001 Assembly: Chassis All Models - 900M9440 Assembly:Side Plate All Models Left - 900M35A4-L Right - 900M35A4-R Assembly: PA Board 930/950 - 9935.002...

  • Page 125: Series Final Assembly Parts Lists

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 930 LOCAL CONTROL HF TRANSCEIVER FINAL ASSEMBLY PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Assembly No: BC93000 Issue1 Sheet 1 of 1 ---------------------------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ---------------------------------------------------------------------------------------------------------------------------------------- LBL Microphone Hand Held 5928 Acc-Cable Power Lead BCA50002 Acc-Microphone hand held...
  • Page 126 BARRETT 900 SERIES TRANSCEIVERS BARRETT 930 REMOTE CONTROL HF TRANSCEIVER FINAL ASSEMBLY PARTS LIST --------------------------------------------- ---------------- --------------------------------------------------------------------------- Assembly No: BC93001 Issue1 Sheet 1 of 1 ---------------- ----------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ------------------------------------------------------------------------------------------------------------------ ---------------- ------ LBL Microphone Hand Held 5928 ManBill 930 Remote Head Complt A93000.001...
  • Page 127 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950 LOCAL CONTROL HF TRANSCEIVER FINAL ASSEMBLY PARTS LIST ------------------------------------------------------------- ---------------- ----------------------------------------------------------- Assembly No: BC95000 Issue1 Sheet 1 of 1 ------------------------------------------------------------------------------- -------- -------- ---------------------------------------- Description Barrett P/N ---------------------------------------------------------------------------------------------------------------------------------------- LBL Microphone Hand Held 5928 Acc-Cable Power Lead...
  • Page 128 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950 LOCAL CONTROL HF TRANSCEIVER FINAL ASSEMBLY PARTS LIST ------------------------------------------ -------- -------- --------------------------------------------------------------------------- Assembly No: BC95001 Issue1 Sheet 1 of 1 ------------------------------------------------------------------------------------------------------------------ ---------------- ------ Description Barrett P/N -------------------------------------------------------------------------------------------------------- ---------------- ---------------- LBL Microphone Hand Held 5928...
  • Page 129 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950 REMOTE CONTROL HF TRANSCEIVER FINAL ASSEMBLY PARTS LIST --------------------------------------------- ---------------- --------------------------------------------------------------------------- Assembly No: BC95002 Issue1 Sheet 1 of 1 ---- ---------------- -------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ----------------------------------------------------------------------------------------------------------------- ---------------- ------- Knob R/Head BC Only 4681 LBL Microphone Hand Held...
  • Page 130 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950 REMOTE CONTROL HF TRANSCEIVER FINAL ASSEMBLY PARTS LIST --------------------------------------------- ---------------- --------------------------------------------------------------------------- Assembly No: BC95003 Issue1 Sheet 1 of 1 ---------------------------------------------------------------------------------------------------------------------------------------- Description Barrett P/N --------------------------------------------------------------------------------------------------------- -------- --------- -------- ------ Knob R/Head BC Only 4681 LBL Microphone Hand Held...
  • Page 131 BARRETT 900 SERIES TRANSCEIVERS BARRETT 950M HF TRANSCEIVER (HI STAB) FINAL ASSEMBLY PARTS LIST ---------------------------------------------- ---------------- ------------------------------------------------------------------------ Assembly No: BC95004 Issue1 Sheet 1 of 1 ---------------- --------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ---------------------------------------------------------------------------------------------------------------- ---------------- ------ Acc-Cable Power Lead BCA50002 I/C PALCE 16V8Q-25PC...
  • Page 132 Washer M3 Nylon (S) 4649BS Feet Rubber Push On 20m x 10mm 5955 M/Work Cover Plate RF/Audio 8422 Cover 900 Series Top Only 8390 Cover 900 Series Bottom Only 8390.1 Screw M3x8 Z/P CSK 1A 4602 Screw M3 x 4mm Pan 1A...

  • Page 133: Hand Microphone Schematic

    BARRETT 900 SERIES TRANSCEIVERS 900 Hand Microphone Schematic 930, 940, 950, 980 Hand Microphone Schematic PAGE 133...

  • Page 134: Cloning Cable Schematic

    BARRETT 900 SERIES TRANSCEIVERS 900 Cloning Cable Schematic 930, 950, 980 Cloning Cable Schematic PAGE 134...

  • Page 135: Programming Cable Schematic

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 900 SERIES TRANSCEIVERS 900 Programming Cable Schematic 930, 950, 980 Programming Cable Schematic PAGE 135...

  • Page 136: Chassis Explosion Diagram

    BARRETT 900 SERIES TRANSCEIVERS 940 Chassis Exploded Diagram PAGE 136...

  • Page 137: Final Assembly Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 PORTABLE HF TRANSCEIVER (DRAB OLIVE) FINAL ASSEMBLY PARTS LIST ---------------------------------------------------------------------------------------------------------- ----------------- ------------- Assembly No: BC94000 Issue1 Sheet 1 of 1 ---------------- ----------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ---------------- ----------------------------------------------------------------------------------------------------------------------- Washer Seal O Ring BC940 4596 Screw M4x14 Phillps/C/sunk...
  • Page 138 BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 PORTABLE HF TRANSCEIVER (PERIWINKLE) FINAL ASSEMBLY PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Assembly No: BC94001 Issue1 Sheet 1 of 1 ---------------------------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ---------------------------------------------------------------------------------------------------------------------------------------- Washer Seal O Ring BC940 4596 Screw M4x14 Phillps/C/sunk 4599 Screw M4 x 173mm BC940 Only...

  • Page 139: Connector Transition Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS 940 Front Metalwork Connection PCB Overlay PAGE 139...

  • Page 140: Connector Transition Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Connector Transition Schematic 940 Connector Transition Schematic 940D33A3.S01 PAGE 140...

  • Page 141: Connector Transition Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 TRANSITION PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-940P07A7 Issue A7 Sheet 1 of 1 Assembly P/N: SA-09945 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------- ---------------- -------------------------------------------------------------------------------------------------------- CAP SMD 1206 1uF CP-00908 CAP SMD 1206 0.1uF CP-00916 CAP SMD 1206 0.1uF...

  • Page 142: Automatic Antenna Tuner Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS 940 Automatic Antenna Tuner PCB Overlay Barrett P/N BCA94009 PAGE 142...

  • Page 143: Automatic Antenna Tuner Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Automatic Antenna Tuner PCB Schematic Barrett P/N BCA94009 PAGE 143...
  • Page 144 BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 AUTO TUNER PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N:PC-940P98A3 Issue A3 Sheet 1 of 3 Assembly P/N: SA-07423 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 1206 22pF 500V CP-00051 CAP SMD 1206 47pF 500V...
  • Page 145 BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 AUTO TUNER PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N:PC-940P98A3 Issue A3 Sheet 2 of 3 Assembly P/N: SA-07423 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- INDUCTOR 42uH 940ATU L8 IN-00097 CHOKE SMD 100uH IN-03605 CHOKE SMD 100uH...

  • Page 146: Auto Tuner Pcb Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 AUTO TUNER PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N:PC-940P98A3 Issue A3 Sheet 3 of 3 Assembly P/N: SA-07423 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------------------------------------------------------------------------------------------------------------------------------- TRANSFORMER 940 ATU T1 TF-00098 IC PIC16C73ACT SMD IC-00032 IC ULN2003...

  • Page 147: Automatic Antenna Tuner Final Assembly Parts List (Drab Olive, Periwinkle)

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 AUTOMATIC ANTENNA TUNER (DRAB OLIVE) FINAL ASSEMBLY PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- Assembly No: BCA94009 Issue1 Sheet 1 of 1 ---------------------------------------------------------------------------------------------------------------------------------------- Description Barrett P/N ---------------------------------------------------------------------------------------------------------------------------------------- 10m Wire Antenna Kit 940 Manpk 7350 Cable Assy 940ATU Control...

  • Page 148: Tuner Front Panel Pcb Overlay

    BARRETT 900 SERIES TRANSCEIVERS 940 Tuner Front Panel PCB Overlay PAGE 148...

  • Page 149: Tuner Front Panel Pcb Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Tuner Front Panel PCB Schematic PAGE 149...

  • Page 150: Atu Front Panel Pcb Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 ATU FRONT PANEL PCB PARTS LIST --------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-940P100A2 Issue A2 Sheet 1 of 1 Assembly P/N: SA-940100 --------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR --------------------------------------------------------------------------------------------------------------------------------------- CAP SMD 1206 0.1uF CP-00916 PLT 8 PIN M PANEL SOCKET...

  • Page 151: Multiple-Use Distribution Unit Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Multiple-Use Distribution Unit Schematic Barrett P/N BCA94010 940 Multiple Use Distribution Unit Cable Assembly PAGE 151...

  • Page 152: Multiple-Use Distribution Unit Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 MULTIPLE-USE DISTRIBUTION UNIT PARTS LIST --------------------------------------------------------------------------------------------------------------- ------------------ ------- Assembly P/N BCA94010 Issue 1 Sheet 1 of 1 ------------------------------------------------------------------------------------------------------------------- ------------------ Description Barrett P/N ---------------------------------------------------------------------------------------------------------------------- ------------------ Plug panel mnt 8pin 4165 Socket panel mnt 5pin 4167...
  • Page 153 BARRETT 900 SERIES TRANSCEIVERS 940 Charge reg. 13Ah / 12V DC input PCB overlay Barrett P/N BCA94021 PAGE 153...
  • Page 154 BARRETT 900 SERIES TRANSCEIVERS 940 Charge Reg. 13Ah/12V DC input PCB Schematic Barrett P/N BCA94021 940 NiMH Battery Charger Booster Section Schematic 940D50A2 PAGE 154...
  • Page 155 BARRETT 900 SERIES TRANSCEIVERS 940 Charge Reg. 13Ah/12V DC input PCB Schematic Barrett P/N BCA94021 940 NiMH Battery Charger Protection Section Schematic 940D50A2 PAGE 155...
  • Page 156 BARRETT 900 SERIES TRANSCEIVERS 940 Charge reg. 13Ah/12V DC input PCB Schematic Barrett P/N BCA94021 940 NiMH Battery Charger Charger PCB Schematic 940D53A2 PAGE 156...

  • Page 157: Battery Charger Pcb Parts List

    BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 BATTERY CHARGER PCB PARTS LIST ---------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-940P52A4 Issue A4 Sheet 1 of 3 Assembly P/N: SA-09954 ---------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR ---------------- ------------------ ------------------------------------------------------------------------------------------------------ CAP ELECTRO 470U 25V CP-01756 CAP SMD 1206 0.1uF...
  • Page 158 BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 BATTERY CHARGER PCB PARTS LIST --------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-940P52A4 Issue A4 Sheet 2 of 3 Assembly P/N: SA-09954 --------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR --------------------------------------------------------------------------------------------------------------------------------------- FET MTP 2955 TR-02265 RES SMD 1206 2K2 RE-00125...
  • Page 159 BARRETT 900 SERIES TRANSCEIVERS BARRETT 940 BATTERY CHARGER PCB PARTS LIST --------------------------------------------------------------------------------------------------------------------------------------- PCB P/N: PC-940P52A4 Issue A4 Sheet 3 of 3 Assembly P/N: SA-09954 --------------------------------------------------------------------------------------------------------------------------------------- COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR --------------------------------------------------------------------------------------------------------------------------------------- IC LM339 SMD IC-02730 IC MC33340 SMD IC-02726 IC MC1458G SMD...

  • Page 160: Transceiver Cloning Cable Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Transceiver Cloning Cable Schematic 940 Transceiver Cloning Cable Schematic PAGE 160...

  • Page 161: Handset Lightweight Tactical Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Handset Lightweight Tactical Schematic Barrett P/N BCA94004 940 Handset Lightweight Tactical Schematic PAGE 161...

  • Page 162: Transceiver Mic Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Transceiver Mic Schematic Barrett P/N BCA94013 940 Electret Mic And Speaker Schematic PAGE 162...

  • Page 163: Programming Cable Schematic

    BARRETT 900 SERIES TRANSCEIVERS 940 Programming Cable Schematic 940 Transceiver Programming Cable Schematic PAGE 163...
  • Page 164 BARRETT 900 SERIES TRANSCEIVERS Note: Specifications and drawings in this manual are subject to change without notice. PAGE 164...

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