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BARRETT 900 SERIES TRANSCEIVERS

3.4

PA PCB

3.5

Remote Control Head

3.6

940 front panel

3.7

940 connector transition PCB

The PA PCB raises the power level to 25 W, 100 or 125 W PEP depending on the setup of the power amplifier
and the model. Seven low pass filters provide harmonic rejection over the full frequency range, reduce
receiver LO radiation and enhance image rejection of the receiver. Also resident on the PA PCB is power
protection circuitry guarding against over-voltage, reverse voltage and low voltage supplies.

ALC protection and regulation of the transmitter power output will protect the transceiver from reactive loads
plus open and short circuit antenna connections.

The remote head can be operated up to 20 metres from any 900 series transceiver (three remote head
interface cables joined together).

The control cable is connected to the remote head via a 9 pin "D" connector. The loudspeaker output being
by a 3.5 mm jack socket.

The remote head contains its own microprocessor to drive the display, but otherwise contains no controlling
intelligence. The remote head firmware is the same for 930, 950 and 980 transceivers - the only difference,
in the heads, being the front panel membrane and key functions.

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. Also fitted to the front panel is a connector transition
PCB described below. In addition to the normal commercial microphone connector on the remote control
head panel there are two military connectors. The 5 pin panel socket provides a handset connection while
the other 8 pin panel plug provides interface signals to the 940 auto tuner, serial communications for
programming and cloning, CW key and power connections.

The connector transition PCB provides a microphone amplifier for the handset and transition from the IDC
connector to the military connectors.

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Содержание 900 Series

Страница 1: ... HF portable transceiver BARRETT COMMUNICATIONS Barrett Communications BCM90000 4 Barrett Communications Pty Ltd Barrett Europe Limited 10 Port Kembla Drive Bibra Lake WA 6163 19 Lenten Street P O Box 1214 Bibra Lake WA 6965 Alton Hampshire AUSTRALIA GU34 1HG Toll Free Tel 1800 999 570 UNITED KINGDOM Tel 61 8 9 434 1700 Tel 44 1420 542254 Fax 61 8 9 418 6757 Fax 44 1420 54337 P3 Head office Europe...

Страница 2: ...pass crystal filter 21 4 2 1 3 Noise blanker 21 4 2 1 4 Noise gate 21 4 2 1 5 Second IF AGC and demodulator 21 4 2 1 6 Transmit and receive switching 21 4 2 2 Audio section 21 4 2 2 1 Audio path 22 4 3 PA PCB 24 4 3 1 Gain control amp 24 4 3 2 Low pass filters 24 4 3 3 ALC control 24 4 3 4 Over voltage and reverse voltage protection 24 4 3 5 Auxiliary antenna socket 24 4 3 6 Receiver RF amplifier ...

Страница 3: ... 3 6 Transmit drive level set potentiometer 42 5 8 3 7 455Khz IF 42 5 8 4 PA PCB 42 5 8 4 1 Driver bias setup 42 5 8 4 2 PA bias setup 42 5 8 4 3 Power level adjustment 43 5 3 4 4 Programmable links 43 6 0 Software programming and options 44 6 1 Barrett 930 transceivers 44 6 2 Barrett 940 transceivers 44 6 3 Barrett 950 transceivers 44 6 4 Barrett 980 transceivers 44 7 0 Internal jumper settings 4...

Страница 4: ...0 series final assembly parts lists 125 930 940 950 980 hand microphone schematic Barrett P N BCA90003 133 930 950 980 cloning cable schematic Barrett P N BCA90024 134 930 950 980 programming cable schematic Barrett P N BCA90023 135 940 chassis explosion diagram 136 940 connector transition PCB overlay 139 940 connector transition schematic 140 940 connector transition parts list 141 940 automatic...

Страница 5: ...gram mode 1 Hz tuneable receiver 940 950 and 980 transceivers Frequency stability Standard 50 Hz 0 to 55 C Optional 10 Hz 15 C to 55 C Standard 980 Intermediate frequencies 45 MHz and 455 kHz double conversion Operating modes J3E USB LSB H3E AM J2A CW J2B AFSK standard filter 980 950 local and remote control models only J2B AFSK narrow filter option 980 950 local and remote control models only Ope...

Страница 6: ...eiver battery and top case 275 mm x 97mm x 405mm automatic antenna tuner 275 mm x 53 mm x 210 mm Selcall System Based on CCIR 493 4 Scan Types Selcall Voice syllabic AGC derived signal level Scan Channels Two tables programmable by channel Scan Rate Selcall Scan Fixed at 500 ms Non Selcall scan Adjustable from 100 ms to 5 secs 930 950 and 980 950MR1 940 940 Optional 940 930 950 980 940 940 940 Opt...

Страница 7: ...e level of a wanted signal that is producing 10dB SINAD that will cause this wanted signal SINAD to reduce by 3dB Blocking 20kHz and 20kHz better than 80dB The level of an unwanted signal above the level of a wanted signal that will reduce the SINAD of the wanted signal producing 10dB SINAD to 7dB SINAD Intermodulation 85dB the level of an unwanted signal in relation to a wanted signal Inband IMD ...

Страница 8: ...s thermal protection against excessive power transistor temperatures Sideband suppression Better than 65dB below PEP Harmonic suppression Better than 60dB below PEP Carrier suppression Better than 60dB below PEP Spurious emission Better than 60dB below PEP Intermodulation products Better than 31dB below PEP 25dB below two tone peak Audio frequency response Less than 6 dB variation 350 Hz to 2750 H...

Страница 9: ...rrett 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 9 ...

Страница 10: ...00 SERIES TRANSCEIVERS PAGE 10 BARRETT 900 DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 DJS PE 900B64A3 PCB 25 1 99 PMW SYSTEM BLOCK DIAGRAM ...

Страница 11: ...or PCB is the central control of the transceiver This PCB also contains the Direct Digital Frequency Synthesis DDFS system which generates all local oscillator injection frequencies the Selcall demodulator and the audio syllabic mute sensing circuit The RF Audio PCB contains the receiver and transmitter exciter the audio processor section and general interface to the outside of the transceiver The...

Страница 12: ...mm jack socket The remote head contains its own microprocessor to drive the display but otherwise contains no controlling intelligence The remote head firmware is the same for 930 950 and 980 transceivers the only difference in the heads being the front panel membrane and key functions The 940 front panel is a Barrett 900 series remote head fitted into an O ringed aluminium front panel The front h...

Страница 13: ...45 455 MHz is the master clock which determines the frequency and timing of all other synchronous events in the transceiver It consists of either a modular TXCO or DCXO oscillating at 45 455 MHz The oscillator frequency is trimmed using the adjustment on the top of the can The output of the TCXO is buffered by Q20 then fed direct to the second mixer on the RF Audio PCB via TP35 and is buffered pri...

Страница 14: ...ANSCEIVERS PAGE 14 BARRETT 900 MICRO BOARD MICROCONTROLLER DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B61A2 PCB 5 8 98 PHW SYSTEM BLOCK DIAGRAM ...

Страница 15: ...f operation chosen but is in the region of 455 kHz The outputs of U7 are digitized sine waves which are decoded by Digital to analog converters U8 U9 and U12 U8 and U9 are used to decode the VCO reference and U12 decodes the carrier insertion output T1 is a resonant transformer which yields a clean sine wave for the carrier insertion signal In order to achieve a spurious free low phase noise local...

Страница 16: ...IES TRANSCEIVERS PAGE 16 BARRETT 950 MICRO BOARD DDFS DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B58A2 PCB 6 8 98 PAB SYSTEM BLOCK DIAGRAM ...

Страница 17: ...t When FSK signals are detected the lock detect U27 pin 6 on the FSK decoder goes high This causes the output of the comparator U27 pin 7 to also go high reverse biasing D31 and thus causing data to be output by U42 B The presence of data SEL RX DATA on the microprocessor U1 pins 24and 25 causes an interrupt and the subsequent processing of the digital selcall data by the microprocessor The Rx aud...

Страница 18: ...is the calibrating voltage for the selcall phase lock in receive but changes to the PA ALC power adjustment control in transmit This voltage is varied by the microprocessor to produce low and high RF power levels from the PA and is also used to trim the PA RF power output at high temperature AN7 on the microprocessor has a temperature sensor on it for this purpose 4 1 9 PA ALC control voltage PWR ...

Страница 19: ...xer U29 and post mixer amplifier Q1 is switched as a block between receive and transmit by relay RL1 The local oscillator level for this mixer is 13dBm The amplifier achieves the best possible broadband termination for the mixer IF port important to maintain low intermodulation distortion The post mixer amplifier then feeds into the noise blanker receiver via an isolation amplifier Q28 and also in...

Страница 20: ...RANSCEIVERS PAGE 20 BARRETT 900 RF AUDIO BOARD RF SECTION DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B62A4 PCB 25 1 99 RAG SYSTEM BLOCK DIAGRAM ...

Страница 21: ...lied to the base of Q11 The output in turn is further amplified by Q13 which is tuned to 455 kHz by T8 In SSB modes the output of the 455 kHz IF amplifier is fed into the double balanced mixer U6 which is the product detector for receive and the balanced modulator for generating the first I F on transmit The double balanced mixer is fed by the carrier insertion oscillator generated on the micropro...

Страница 22: ...B and fed to the speaker clamps Q22 and Q23 repectivley which suppress the audio on transmit The power amplifier U23 raises both the audio signals to 2 W maximum in order to drive the loudspeaker in either the remote head or front panel which ever or both of which may be fitted Auxiliary muted Rx audio is available via balanced output amplifier U19 delivering 0dBm into 600 In a balanced op amp U15...

Страница 23: ...NSCEIVERS PAGE 23 BARRETT 900 RF AUDIO BOARD AUDIO SECTION DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B63A4 PCB 16 2 99 RAG SYSTEM BLOCK DIAGRAM ...

Страница 24: ...ower with a reference voltage and generates a control voltage which is fed through the emitter follower buffer Q12 to the gain controlled amplifier Both forward and reverse power DC levels are buffered by U7 and fed to the Micro PCB When optional external linear amplifiers are used U3B buffers an external current sourced ALC signal from these linear amplifiers to control the power output of the PA...

Страница 25: ...RIES TRANSCEIVERS BARRETT 900 PA BOARD DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO 9603 DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B57A3 PCB 16 2 99 TRB SYSTEM BLOCK DIAGRAM PAGE 25 ...

Страница 26: ...his is buffered by Q9 and sent via the control cable and the RF Audio PCB to the microprocessor PCB The microphone channel up and down buttons are also handled by U2 Channel up and channel down functions come from the microphone socket pins 3 and 2 respectively Backlighting for the keys is provided by parallel LED s D6 D12 which are in series with the LCD display s internal backlight diodes Port R...

Страница 27: ...RIES TRANSCEIVERS PAGE 27 BARRETT 900 FRONT PANEL DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B59A1 PCB 24 12 97 PHW SYSTEM BLOCK DIAGRAM ...

Страница 28: ...ing is handled by U2 a matrix encoder chip that provides a PWM coded output only when a key is depressed The microphone up and down buttons are also handled by U2 The serial output from U2 is buffered by FET Q8 and emerges at connector P1 as RH SKB OUT for eventual decoding by the microprocessor Serial data from the transceiver s main body is sent to the remote head on line RH SD INB via the remot...

Страница 29: ...RIES TRANSCEIVERS PAGE 29 BARRETT 900 REMOTE HEAD DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 GMH 900B60A1 PCB 24 12 97 PHW SYSTEM BLOCK DIAGRAM ...

Страница 30: ...ation It is essential that these types of components are installed correctly Components with leads that are soldered into plated through holes in the PCB such as integrated circuits diodes resistors and capacitors can often be replaced with the minimum of risk by clipping its leads as close to the component as possible The leads left in the PCB can then be removed by carefully heating the solder j...

Страница 31: ...g it If working on the whole system with the power amplifier connected caution should be exercised when connecting probes in the area of the MC1350 gain controlled amplifier as a probe can cause instability which can drive the power amplifier to full power without ALC action being available resulting in damage to the power amplifier When connecting probes to the PA assembly the earth clip lead sho...

Страница 32: ...y round The circuit diagram should be examined for parallel paths across these junctions caused by low resistance devices such as inductors before you remove a transistor that fails these tests some transistor faults can be diagnosed by measuring voltages within the circuit One of the most significant voltage measurements is the base emitter voltage The polarity of this will depend on the type of ...

Страница 33: ... RF Audio PCB s Check the 14 way cable between the Front Panel and the RF Audio PCB s Check the 50 way connectors are mated between the RF Audio and the microprocessor PCB Check the Cathode of D1 on the PA PCB is 10 V when the transceiver is off and low when it is switched on If a single relay click is audible on switch on but the transceiver is otherwise inactive the 3 15A fuse on the PA PCB is p...

Страница 34: ...4 PCB 14 13 8 V 13 8 V PA external nominal nominal source Micro 900S14 PCB 10 10V 10V PA U5 0 2V 0 2V Micro 900S14 PCB 5 TP14 5V 5V PA U2 0 2V 0 2V Micro 900S14 PCB 5D TP4 5V 5V Micro U19 0 2V 0 2V Micro 900S14 PCB 5VA TP3 5V 5V Micro U20 0 2V 0 2V Fr Panel 900S16 PCB 14 13 8 V 13 8 V PA via RF Audio nominal nominal Fr Panel 900S16 PCB 5 5V 5V Fr Panel Q6 0 2V 0 2V Rem Head 900S17 PCB 14 13 8 V 13...

Страница 35: ...7 6 VCO faults Check the first local oscillator LO1 generated by a phase locked loop on the microprocessor PCB is locked indicated by the red LED on the microprocessor PCB being extinguished off Then with a channel frequency programmed to 2 000 MHz the frequency if the LO1 should be 47 455MHz SCF 45 455MHz with a level of approx 2 8V P P 13dBm If the VCO is unlocked or the LO1 is not present or co...

Страница 36: ...d check for output If no output is present check the DC level into the TCXO DCXO is correct If it is and no output is evident then replace the TCXO DCXO Incorrect DC levels generally indicate a failed transistor As Q13 and Q14 are not DC coupled the faulty device should be obvious If the reference chain is working up to pin 1 of U13 then check for 22 7MHz logic clock at TP34 and 11 3MHz logic cloc...

Страница 37: ...ansmit it is first necessary to determine which of the modules is at fault First disconnect the coaxial cable between the RF Audio PCB output and the PA PCB input Do this at the RF audio PCB end Connect a coaxial cable from the RF Audio PCB output to an oscilloscope Terminate the oscilloscope input in 50 ohms Set the transceiver frequency to 10 MHz Either inject a two tone test signal into the mic...

Страница 38: ...ss the MRF455 s Desolder all the solder lugs connecting the flange to ground Keep these safely There should be 4 for a pair of transistors Remove 2 spring washers from under the solder tags Desolder the leads of the BD139 transistor which sits on top of the power transistor flange Remove this transistor for later use Prize up the collector leads carefully until they are clear of the PCB The collec...

Страница 39: ... 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 Readjust bias before use PAGE 39 ...

Страница 40: ...andard for the transceiver The high stability oscillator option replaces the standard oscillator components described above with a modular 45 455 MHz TCXO DCXO Unlike the standard oscillator the high stability oscillator can be adjusted straight after turn on A frequency counter should be connected to TP34 using an oscilloscope probe set to 10M Then using a trimming tool or small Philips screw dri...

Страница 41: ...io PCB If a spectrum analyser with tracking generator is available this filter can be adjusted by adjusting the two notch frequencies of 69MHz and 47MHz The transceiver should be turned off for this adjustment Unsolder SP3 and connect the tracking generator to TP30 and the spectrum analyzer input to TP14 Adjust L16 for a notch at 69MHz and L20 for a notch at 47MHz The frequency response should be ...

Страница 42: ...ely if no method of measuring the residual carrier level such as a spectrum analyser is available the control can be set at its midway point Tune the receiver to any convenient frequency to a weak signal or use a signal generator set to 1uV Peak coil T8 for maximum signal at TP11 This has a very broad response so tuning is not critical There are three potentiometers on the PA PCB These control pow...

Страница 43: ... access to a two tone test source and a peak reading watt meter High intermodulation levels can occur if the potentiometers are incorrectly set Set frequency to 7MHz and SSB mode The only user selectable link on the PA PCB is normally left open Where an auxiliary antenna socket is fitted the link can be inserted to obtain separate Tx Rx sockets or separate socket routing depending upon the channel...

Страница 44: ...he internal programmer within the transceiver by using the Barrett 900 Series programming software or by cloning using cloning cable Barrett P N BCA94014 from other 940 transceivers Pack 1 no selcall default no options Pack 2 BCO95002 Selcall Telcall GPS interface and external alarm Pack 3 BCO95003 RS 232 interface includes Telcall Selcall GPS interface 950 transceivers can be programmed using the...

Страница 45: ... antenna connectors PA PCB 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 With reference to the following diagrams the table below d...

Страница 46: ...nnection The scrambler option is enabled in the setup menu within the transceiver or during programming Once enabled the scrambler can be turned off and on by holding down the key labelled SCRAM The scrambler has five Dip switches marked A0 A1 A2 A3 and A4 These allow the scrambling code to be changed as detailed in the table below Ensure all transceivers in a net have the same code set to enable ...

Страница 47: ...BARRETT 900 SERIES TRANSCEIVERS Fitting internal scrambler option PAGE 47 U S B A M L S B R X T X 9 5 0 O N V O L B A R R E T T B A R R E T T TP24 TP9 TP15 TP12 ...

Страница 48: ...sceiver as indicated in the attached diagram and terminated on the BNC connector fitted in the normally blanked hole next to the RF connector on the rear of the transceiver Note ALE option PCB is also fitted on this ALE GPS motherboard if required The ALE option PCB is mounted on the ALE GPS daughter board which in turn is mounted on the microprocessor PCB using the screws and stand offs supplied ...

Страница 49: ...ol 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 The Barrett 950MR and Barrett 950MR1 are technically identical to the Barrett 950 local control transceiver but have a PCB fitted in place of the PA PCB containi...

Страница 50: ...nt current source of approximately 2 5A This source is regulated by U4 A Q9 and R30 The source is pulsed or switched off by the battery charge controller U3 using Q5 The current source is pulsed to look for a voltage drop which indicates the battery is fully charged The current source is switched off if the battery is fully charged or a fault condition occurs A fault condition is where the battery...

Страница 51: ...ed in during the tuning procedure by RL12 The pad has the function of reducing the RF voltage to minimise arcing and to present a resistive load to the transmitter so that it can provide a full 20W during tuning Whenever the pad is used a phase detector is also switched in This comprises of a current sense transformer T3 and a voltage sense capacitor C33 These two signals are mixed and rectified v...

Страница 52: ... shunt capacitors C2 and C3 are employed to make the wire appear slightly capacitive Since the required reactance to tune out this residual capacitance will be small a sequential tuning algorithm is employed using only the smaller tuning inductors The combination which produces the highest feed current is assumed to be the optimum Finally the impedance transformer will attempt to match the resisti...

Страница 53: ...uning mobile antenna or 911 Automatic Antenna tuner A set of screw terminals is provided to allow an external 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 Head...

Страница 54: ... no output Octal bit 1 Active low None 16 Ant 2 Channel no output Octal bit 2 Active low None 17 External Alarm Out Horn Latched alarm out selcall activated Active low BCO95002 3 18 13 8 V Int Out Interrupted 13 8 V for 910 Auto Antenna 13 8V 0V None 19 Ant 0 Pre amp on 910 pre amp on Channel no output Octal bit 0 Active low None 20 FSK Ext GPS in FSK digital input Ext GPS Input with pin 8 Active ...

Страница 55: ...annel no output Octal bit 0 910 pre amp on Active low None 15 Ant 1 Channel no output Octal bit 1 Active low None 16 Ant 2 Channel no output Octal bit 2 Active low None 17 External Alarm Out Horn Latched alarm out selcall activated Active low BCO93002 18 13 8 V Int Out Ant 3 Interrupted 13 8 V for 910 Auto Antenna Ant 3 13 8V 0V Active Low None 19 Ant 0 Pre amp on 910 pre amp on Channel no output ...

Страница 56: ... RS 232 None 3 Tx Data RS 232 data output for cloning function only True RS 232 None 4 CW key CW key input Ground to activate None 5 External Speaker External speaker output 0 10V None 6 Tune command Antenna tune command to 940 automatic tuner option Low going pulse None 7 13 8VDC External power input positive 13 8 VDC None 8 13 8VDC Power output to 940 tuner 13 8 VDC None 1 Ground Ground 0 V None...

Страница 57: ...ys and parts lists Active component outlines PAGE 57 DISCRETE SEMICONDUCTORS IN BARRETT 900 SERIES TRANSCEIVERS DRAWING NUMBER DATE ECN REFERENCE BARRETT PART NO DIMENSIONING SCALE NTS DRAWN DRAWING TITLE DESIGNED SHEET 1 OF 1 DJS PE 900S109A0 PCB 3 2 99 RAG KAE ...

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

Страница 59: ...BARRETT 900 SERIES TRANSCEIVERS RF AUDIO Schematic Showing optional narrow filter components See File RF AUDIO BOARD SCHEMATICS pdf PAGE 59 ...

Страница 60: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 60 This page has been intentionally left blank ...

Страница 61: ...916 C21 CAP SMD 0805 15 pF CP 00938 C22 CAP SMD 1206 10nF CP 00951 C23 CAP SMD 1206 10nF CP 00951 C24 CAP SMD 0805 2p2F CP 00918 C25 CAP SMD 0805 1nF CP 00915 C26 CAP SMD 0805 1nF CP 00915 C27 CAP SMD TANT 1uF 16V CP 01570 C28 CAP SMD 0805 1nF CP 00915 C29 CAP SMD 1206 47nF CP 00954 C30 CAP SMD 1206 1 0uF CERAMIC CP 00908 C31 CAP SMD 0805 8p2F CP 00935 C32 CAP SMD 1206 10nF CP 00951 C33 CAP SMD 12...

Страница 62: ...uF CP 00916 C71 CAP SMD 1206 0 1uF CP 00916 C72 CAP SMD 1206 1 0uF CERAMIC CP 00908 C73 CAP SMD 1206 0 1uF CP 00916 C74 CAP SMD 1206 0 1uF CP 00916 C75 CAP SMD 1206 0 1uF CP 00916 C76 CAP SMD 0805 1nF CP 00915 C77 CAP SMD TANT 10uF 16V CP 01580 C78 CAP SMD TANT 10uF 16V CP 01580 C79 CAP SMD 1206 0 1uF CP 00916 C80 CAP SMD 0805 1nF CP 00915 C81 CAP SMD TANT 22uF 20V CP 01590 C82 CAP SMD 0805 1nF CP...

Страница 63: ...05 4n7 CP 10947 C121 CAP SMD 0805 4n7 CP 10947 C122 CAP SMD 1206 0 1uF CP 0 0916 C123 CAP SMD TANT 10uF 16V CP 01580 C124 CAP SMD 1206 1uF CERAMIC CP 00908 C125 CAP SMD 1206 1uF CERAMIC CP 00908 C126 CAP SMD 1206 0 1uF CP 00916 C127 CAP SMD 1206 0 1uF CP 00916 C128 CAP 100uF 25V RB CP 01637 C129 CAP SMD 1206 1uF CERAMIC CP 00908 C130 CAP SMD TANT 1 0uF 16V CP 01570 C131 CAP SMD 0805 1nF CP 00915 C...

Страница 64: ...C170 CAP SMD 1206 2u2F CERAMIC CP 00909 C171 CAP SMD 1206 0 1uF CP 00916 C172 CAP SMD 1206 1uF CERAMIC CP 00908 C173 CAP SMD 1206 10nF CP 00951 C174 CAP SMD 0805 1nF CP 00915 C175 CAP SMD 1206 0 1uF CP 00916 C176 CAP SMD 1206 0 1uF CP 00916 C177 CAP SMD 1206 0 1uF CP 00916 C178 CAP SMD 0805 1nF CP 00915 C179 CAP SMD 0805 1nF CP 00915 C180 CAP SMD 1206 0 1uF CP 00916 C181 CAP SMD 0805 1nF CP 00915 ...

Страница 65: ...AV 70 DI 03316 D16 DIODE SMD BAV 99 DI 03317 D17 DIODE SMD BAV 70 DI 03316 D18 DIODE SMD BAV 70 DI 03316 D19 DIODE SMD BAV 99 DI 03317 D20 DIODE SMD BAV 99 DI 03317 D21 DIODE SMD BAV 70 DI 03316 D22 DIODE SMD BAV 70 DI 03316 F1 CERAMIC FILTER CFJ455K5 FI 07604 F2 F2A CRYSTAL FILTER PAIR 45MHz FI 07603 F4 CERAMIC FILTER CFSFE 10 7 FI 07601 F5 CERAMIC FILTER CFSFE 10 7 FI 07601 F6 OPTIONALFILTER 455...

Страница 66: ...R 02262 Q15 FET SMD 2N7002 LT 1 TR 02282 Q16 FET POWER IRF7404 TR 00001 Q17 TRANSISTOR SMD BC847 TR 02262 Q18 FET SMD MMBF545 TR 02238 Q19 FET SMD 2N7002 LT 1 TR 02282 Q20 FET SMD 2N7002 LT 1 TR 02282 Q21 FET SMD 2N7002 LT 1 TR 02282 Q22 FET SMD 2N7002 LT 1 TR 02282 Q23 FET SMD 2N7002 LT 1 TR 02282 Q24 TRANSISTOR SMD BC807 TR 02229 Q25 TRANSISTOR SMD BC847 TR 02262 Q26 TRANSISTOR SMD BC807 TR 0222...

Страница 67: ... 00128 R35 RES SMD 1206 180R RE 00118 R36 RES SMD 1206 47K RE 00157 R37 RES SMD 1206 10K RE 00150 R38 RES SMD 1206 680R RE 00101 R39 RES SMD 1206 10K RE 00150 R40 RES SMD 1206 22R RE 00108 R41 RES SMD 1206 10R RE 00111 R42 RES SMD 1206 18K RE 00152 R43 RES SMD 1206 47K RE 00157 R44 RES SMD 1206 22K RE 00153 R45 RES SMD 1206 12K RE 00149 R46 RES SMD 1206 470R RE 00121 R47 RES SMD 1206 680R RE 00101...

Страница 68: ...88 RES SMD 1206 4K7 RE 00128 R89 RES SMD 1206 100K RE 00170 R90 RES SMD 1206 1K1 RE 10267 R91 RES SMD 1206 750R RE 10268 R92 RES SMD 1206 560R RE 00132 R93 RES SMD 1206 10K RE 00261 R94 RES SMD 1206 10K RE 00261 R95 RES SMD 1206 1K8 RE 00252 R96 RES SMD 1206 1K8 RE 00252 R97 RES SMD 1206 100K RE 00170 R98 RES SMD 1206 22K RE 00153 R99 RES SMD 1206 100K RE 00170 R100 RES SMD 1206 1M0 RE 00178 R101 ...

Страница 69: ...140 RES SMD 1206 18K RE 00152 R141 RES SMD 1206 2M2 RE 00187 R142 RES SMD 1206 330K RE 00176 R143 RES SMD 1206 330K RE 00176 R144 RES SMD 1206 2R7 RE 00103 R145 RES SMD 1206 120K RE 00184 R146 RES SMD 1206 10K RE 00150 R147 RES SMD 1206 10K RE 00150 R148 RES SMD 1206 4K7 RE 00128 R149 RES SMD 1206 220K RE 00174 R150 RES SMD 1206 39K RE 00268 R151 RES SMD 1206 5K6 RE 00129 R152 RES SMD 1206 10K RE ...

Страница 70: ...00150 R193 RES SMD 1206 1K RE 00122 R194 RES SMD 1206 1K RE 00122 R195 RES SMD 1206 4K7 RE 00128 R196 RES SMD 1206 10K RE 00150 R197 RES SMD 1206 1K0 RE 00122 R198 RES SMD 1206 4K7 RE 00128 R199 RES SMD 1206 4K7 RE 00128 R200 RES SMD 1206 10K RE 00150 R201 RES SMD 1206 390R RE 00120 R202 RES SMD 1206 130R RE 00096 R203 RES SMD 1206 47R RE 00113 R204 RES SMD 1206 130R RE 00096 R205 RES SMD 1206 2K2...

Страница 71: ... U4 IC SMD MC1350 IC 02709 U5 IC SMD LM358M IC 02706 U6 IC SMD MC1496D IC 02718 U7 IC SMD 4053 IC 02720 U8 IC SMD NE630 IC 02734 U9 IC LM 319 IC 02715 U10 IC SMD 74HC132 IC 02708 U11 IC SMD 4053 IC 02720 U12 IC SMD NE630 IC 02734 U13 BAL MIXER RFLMS 1 RM6 IC 20000 U14 IC SMD 4053 IC 02720 U15 IC SMD LMC6042 IC 02777 U16 IC SMD 4053 IC 02720 U17 IC SMD LMC6042 IC 02777 U18 IC SMD LMC6082 IC 02800 U...

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

Страница 73: ...BARRETT 900 SERIES TRANSCEIVERS Microprocessor Schematic Showing optional switch mode regulator 940 and TCXO See File MICRO BOARD SCHEMATIC pdf PAGE 73 ...

Страница 74: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 74 This page has been intentionally left blank ...

Страница 75: ...D 1206 0 1uF CP 00916 C19 CAP SMD 1206 0 1uF CP 00916 C20 CAP SMD 1206 0 1uF CP 00916 C21 CAP SMD TANT 10uF CP 01580 C22 CAP SMD 1206 0 1uF CP 00916 C23 CAP SMD 1206 0 1uF CP 00916 C24 CAP SMD 0805 1nF CP 00915 C25 CAP SMD 1206 0 1uF CP 00916 C26 CAP SMD 1206 0 1uF CP 00916 C27 CAP SMD 1206 0 1uF CP 00916 C28 CAP SMD 0805 1nF CP 00915 C31 CAP SMD 1206 0 1uF CP 00916 C32 CAP SMD 1206 10nF CP 00951 ...

Страница 76: ...0805 3p3 CP 00921 C78 CAP SMD 0805 1nF CP 00915 C79 CAP SMD 1206 0 1uF CP 00916 C80 CAP SMD 0805 3p3 CP 00921 C81 CAP SMD TANT 10uF CP 01580 C82 CAP SMD 1206 560nF CP 00913 C83 CAP SMD 1206 2u2 CP 00909 C84 CAP SMD 0805 1nF CP 00915 C85 CAP SMD 0805 56pF CP 00931 C86 CAP SMD 0805 56pF CP 00931 C88 CAP SMD 1206 0 1uF CP 00916 C89 CAP SMD 0805 1nF CP 00915 C90 CAP SMD 1206 0 1uF CP 00916 C92 CAP SMD...

Страница 77: ...06 0 1uF CP 00916 C130 CAP SMD 1206 0 1uF CP 00916 C131 CAP SMD 0805 1nF CP 00915 C132 CAP SMD 0805 6p8 CP 00919 C133 CAP SMD 0805 6p8 CP 00919 C134 CAP SMD 0805 1nF CP 00915 C135 CAP SMD 1206 0 1uF CP 00916 C136 CAP SMD TANT 10uF CP 01580 C137 CAP SMD 0805 6p8 CP 00919 C138 CAP SMD 1206 0 1uF CP 00916 C139 CAP SMD 0805 1nF CP 00915 C140 CAP SMD 0805 1nF CP 00915 C141 CAP SMD 0805 1nF CP 00915 C14...

Страница 78: ...06 0 1uF CP 00916 C180 CAP SMD 1206 10nF CP 00951 C181 CAP SMD TANT 1uF CP 01570 C182 CAP SMD TANT 10uF CP 01580 C183 CAP SMD 1206 0 1uF CP 00916 C184 CAP SMD 1206 33nF CP 00953 C185 CAP SMD 0805 560pF CP 00945 C186 CAP SMD 1206 0 1uF CP 00916 C187 CAP SMD 1206 0 1uF CP 00916 C188 CAP SMD 1206 3n3 CP 00946 C189 CAP SMD 0805 1nF CP 00915 C190 CAP SMD TANT 10uF CP 01580 C191 CAP SMD TANT 1uF CP 0157...

Страница 79: ... SMD 0850 1nF CP 00915 C226 CAP SMD 0850 1nF CP 00915 C227 CAP SMD 0850 1nF CP 00915 C228 CAP SMD 0850 1nF CP 00915 C229 CAP SMD 0850 1nF CP 00915 C230 CAP SMD 0850 1nF CP 00915 C231 CAP SMD 0850 1nF CP 00915 C232 CAP SMD 0850 1nF CP 00915 C233 CAP SMD 0850 1nF CP 00915 C234 CAP SMD 0850 1nF CP 00915 C235 CAP SMD 0850 1nF CP 00915 C236 CAP SMD 0850 1nF CP 00915 C237 CAP SMD 1206 0 1uF CP 00916 C23...

Страница 80: ...I 03317 D10 DIODE SMD BAV70 DI 03316 D11 DIODE SMD BAV70 DI 03316 D12 DIODE SMD BAV99 DI 03317 D14 DIODE SMD LED YELLOW LE 02921 D15 DIODE SMD LED GREEN LE 02922 D16 DIODE SMD LED GREEN LE 02922 D17 DIODE SMD LED RED LE 02920 D19 DIODE SMD BAV99 DI 03317 D20 DIODE SMD BAV70 DI 03316 D21 DIODE SMD BAV99 DI 03317 D22 DIODE SMD BAV70 DI 03316 D23 DIODE SMD BAV99 DI 03317 D24 DIODE SMD BAV70 DI 03316 ...

Страница 81: ...80 Q9 TRANSISTOR SMD BC847 TR 02262 Q10 TRANSISTOR SMD BFT92 TR 02280 Q11 TRANSISTOR SMD BFT92 TR 02280 Q12 TRANSISTOR SMD BC847 TR 02262 Q13 TRANSISTOR SMD BC847 TR 02262 Q14 TRANSISTOR SMD BFR92A TR 02260 Q15 TRANSISTOR SMD BFT92 TR 02280 Q16 TRANSISTOR SMD BFR92A TR 02260 Q20 TRANSISTOR SMD BFR92A TR 02260 Q21 TRANSISTOR SMD BC847 TR 02262 Q22 TRANSISTOR SMD BC847 TR 02262 Q23 TRANSISTOR SMD BC...

Страница 82: ... R44 RES SMD 1206 470R RE 00121 R46 RES SMD 1206 47R RE 00113 R47 RES SMD 1206 10R RE 00111 R48 RES SMD 1206 10R RE 00111 R49 RES SMD 1206 10R RE 00111 R50 RES SMD 1206 47R RE 00113 R51 RES SMD 1206 2K7 RE 00126 R52 RES SMD 1206 1K RE 00122 R53 RES SMD 1206 1K RE 00122 R54 RES SMD 1206 2K7 RE 00126 R55 RES SMD 1206 10R RE 00111 R56 RES SMD 1206 10R RE 00111 R57 RES SMD 1206 10R RE 00111 R58 RES SM...

Страница 83: ... RE 00114 R94 RES SMD 1206 10R RE 00111 R95 RES SMD 1206 10K RE 00150 R96 RES SMD 1206 56R RE 00114 R97 RES SMD 1206 22K RE 00153 R98 RES SMD 1206 10R RE 00111 R99 RES SMD 1206 10R RE 00111 R100 RES SMD 1206 5K6 RE 00129 R101 RES SMD 1206 180R RE 00118 R102 RES SMD 1206 220R RE 00119 R103 RES SMD 1206 470R RE 00121 R104 RES SMD 1206 470R RE 00121 R105 RES SMD 1206 220R RE 00119 R106 RES SMD 1206 5...

Страница 84: ...5 R176 RES SMD 1206 33K RE 00155 R177 RES SMD 1206 27K RE 00154 R178 RES SMD 1206 1K 1 RE 00006 R179 RES SMD 1206 3K3 RE 00127 R180 RES SMD 1206 10K RE 00150 R181 RES SMD 1206 10K RE 00150 R182 RES SMD 1206 10K RE 00150 R183 RES SMD 1206 10K RE 00150 R184 RES SMD 1206 220K RE 00174 R185 RES SMD 1206 15K RE 00151 R186 RES SMD 1206 10K RE 00150 R187 RES SMD 1206 39R RE 00109 R188 RES SMD 1206 39R RE...

Страница 85: ...4 4 MICRO TF 03122 T4 T FORMER T 622 KK81 SMD IC 02766 TCXO1 45 455MHz TXCO CR 07612 TH1 CERAMIC CRYSTAL HEATER CR 07606 U1 IC D78C10AL CPU IC 02741 U2 IC 74HC574 SMD IC 02705 U3 IC 74HC00 SMD IC 02780 U4 IC 27C512 EPROM IC 02772 U5 IC 28C64 EEPROM SMD IC 02714 U6 IC 74HC138 SMD IC 02788 U7 IC Q2334C 50N DDFS SMD IC 02710 U8 IC DAC908 SMD IC 20005 U9 IC DAC908 SMD IC 20005 U10 IC LM358 SMD IC 0270...

Страница 86: ...32 IC 74AC74 SMD IC 02702 U33 IC LMC6042 SMD IC 02777 U34 IC LM339 SMD IC 02730 U35 IC SAA3049 SMD IC 02792 U36 IC PT5101 5V REG IC 02315 U37 IC LM2940 10 TO 220 IC 02802 U38 IC DAC0832 IC 02742 U39 IC 74HC574 SMD IC 02705 U40 IC PALC 16V8Q 25 IC 02750 U41 IC LM358 SMD IC 02706 U42 IC LMC6042 SMD IC 02777 U43 IC 4053 SMD IC 02720 U44 IC 4053 SMD IC 02720 U45 IC LM4040 5 0 SOT 23 DI 03355 VR2 T POT...

Страница 87: ...BARRETT 900 SERIES TRANSCEIVERS PA PCB overlay PAGE 87 ...

Страница 88: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 88 This page has been intentionally left blank ...

Страница 89: ...BARRETT 900 SERIES TRANSCEIVERS PA schematic See File PA SCHEMATIC pdf PAGE 89 ...

Страница 90: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 90 This page has been intentionally left blank ...

Страница 91: ...TALUM 10uF 16V CP 01580 C21 CAP820pF mica CP 02134 C22 CAP 560pF SMD PHILIPS 2238 971 11546 CP 00067 C23 CAP SMD 1206 0 1uF 5 63V CP 00916 C24 CAP ELECTRO RB 220uF 35V CP 01793 C25 CAP SMD 1206 0 1uF 5 63V CP 00916 C26 CAP ELECTRO RB 220uF 35V CP 01793 C28 CAP SMD 1206 0 1uF 5 63V CP 00916 C29 CAP SMD 1206 0 1uF 5 63V CP 00916 C30 CAP SMD TANTALUM 10uF 16V CP 01580 C31 CAP SMD 1206 0 1uF 5 63V CP ...

Страница 92: ...80 CAP SMD 1206 0 1uF 5 63V CP 00916 C82 CAP SMD 1206 0 1uF 5 63V CP 00916 C83 CAP SMD 1206 0 1uF 5 63V CP 00916 C84 CAP SMD 1206 0 1uF 5 63V CP 00916 C85 CAP SMD 1206 0 1uF 5 63V CP 00916 C86 CAP SMD 1206 0 1uF 5 63V CP 00916 C87 CAP SMD 1206 0 1uF 5 63V CP 00916 C88 CAP SMD 1206 0 1uF 5 63V CP 00916 C89 CAP SMD 1206 0 1uF 5 63V CP 00916 C90 CAP SMD 1206 0 1uF 5 63V CP 00916 C91 CAP SMD TANTALUM ...

Страница 93: ...916 C141 CAP SMD 1206 0 1uF 5 63V CP 00916 C142 CAP SMD 1206 0 1uF 5 63V CP 00916 C143 CAP SMD TANTALUM 10uF 25V CP 01575 C144 CAP SMD 1206 0 1uF 5 63V CP 00916 C145 CAP SMD 1206 0 1uF 5 63V CP 00916 C146 CAP SMD 0805 1nF 5 63V CP 00915 C147 CAP SMD 0805 560pF 5 63V CP 00945 C148 CAP SMD 0805 120pF CP 00939 C149 CAP SMD 0805 120pF CP 00939 C150 CAP SMD 0805 1nF 5 63V CP 00915 C151 CAP SMD 1206 0 1...

Страница 94: ...LIPS 2238 971 11531 CP 00054 C194 CAP 270pF SMD PHILIPS 2238 971 11542 CP 00063 C195 CAP 6 8pF SMD PHILIPS 2238 971 11523 CP 00047 C196 CAP 120pF SMD PHILIPS 2238 971 11538 CP 11661 C197 CAP 120pF SMD PHILIPS 2238 971 11538 CP 11661 C198 CAP 470pF SMD PHILIPS 2238 971 11545 CP 00066 C199 CAP 10 Pf SMD PHILIPS 2238 971 11523 CP 00048 C200 CAP 180pF SMD PHILIPS 2238 971 11539 CP 00061 C201 CAP 560pF...

Страница 95: ... BAV70 DI 03316 D10 DIODE ULTRA FAST ES1B DI 03312 D11 DIODE ULTRA FAST ES1B DI 03312 D12 DIODE ULTRA FAST ES1B DI 03312 D13 DIODE ULTRA FAST ES1B DI 03312 D14 DIODE ZENER BZX84C15 DI 03320 D15 DIODE SMD BAV70 DI 03316 F1 FUSE 3 15A M205 FU 04801 FL1 MURATA FILTER M103 FI 07618 J2 PLUG 3PIN CN 14102 L1 CHOKE 33uH SMD IN 03607 L2 CHOKE 33uH SMD IN 03607 L3 CHOKE 6u8H SMD IN 15006 L4 CHOKE 6u8H SMD ...

Страница 96: ...29 Q12 TRANSISTOR BC847 TR 02262 Q16 TRANSISTOR BCP53 TR 02285 Q19 TRANSISTOR BD139 TR 02205 Q21 TRANSISTOR 2N5192 TR 02212 Q22 FET 2SK125 TR 02245 Q23 FET SMD 2N7002 LT 1 TR 02282 Q24 TRANSISTOR BC847 TR 02262 Q25 TRANSISTOR BSP17 TR 02207 Q26 FET SMD 2N7002 LT 1 TR 02282 R1 RES SMD 1206 5 220R RE 00119 R2 RES SMD 1206 5 68R RE 00115 R3 RES SMD 1206 5 330R RE 00107 R4 RES SMD 1206 5 10R RE 00111 ...

Страница 97: ...RES SMD 1206 5 3K3 RE 00127 R53 RES SMD 1206 5 100K RE 00170 R54 RES SMD 1206 5 100K RE 00170 R55 RES SMD 1206 5 15K RE 00151 R56 RES SMD 1206 5 15K RE 00151 R57 RES SMD 1206 5 1K RE 00122 R58 RES SMD 1206 5 1K5 RE 00124 R59 RES SMD 1206 5 220R RE 00119 R60 RES SMD 1206 5 1K RE 00122 R62 RES SMD 1206 5 1K RE 00122 R63 RES SMD 1206 5 120R RE 00095 R65 RES SMD 1206 5 220R RE 00119 R66 RES SMD 1206 5...

Страница 98: ...RELAY EP1 3L1S NEC RL 05020 RL10 RELAY EA2 12 RL 05013 RL11 RELAY EA2 12 RL 05013 RL12 RELAY EA2 12 RL 05013 RL13 RELAY EA2 12 RL 05013 RL14 RELAY EA2 12 RL 05013 RL15 RELAY EA2 12 RL 05013 RL16 RELAY EA2 12 RL 05013 RL17 RELAY EP1 3L1S NEC RL 05020 RL18 RELAY EA2 12 RL 05013 RL19 RELAY EA2 12 RL 05013 RV2 TRIMPOT 100R 5 IC 02511 RV3 TRIMPOT 100R 5 IC 02511 RV4 TRIMPOT CER 5K IC 02501 SCR1 THYRIST...

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

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

Страница 101: ...0805 1nF CP 00915 C21 CAP SMD 0805 1nF CP 00915 C22 CAP SMD 0805 1nF CP 00915 C23 CAP SMD 0805 1nF CP 00915 C24 CAP SMD 0805 1nF CP 00915 C25 CAP SMD 0805 1nF CP 00915 D1 LED YELLOW 5x2 RECT LE 02908 D2 LED YELLOW 5x2 RECT LE 02908 D3 LED YELLOW 5x2 RECT LE 02908 D4 LED GREEN 5x2 RECT LE 02909 D5 LED RED 5x2 RECT LE 02910 D6 LED YELLOW ROUND 3mm LE 02923 D7 LED YELLOW ROUND 3mm LE 02923 D8 LED YEL...

Страница 102: ...0R RE 00106 R10 RES SMD 1206 270R RE 00106 R11 RES SMD 1206 270R RE 00106 R12 RES SMD 1206 270R RE 00106 R13 RES SMD 1206 270R RE 00106 R14 RES SMD 1206 39K RE 00156 R15 RES SMD 1206 10K RE 00150 R16 RES SMD 1206 470R RE 00121 R17 RES SMD 1206 0R RE 00000 R20 RES SMD 1206 10K RE 00150 R21 RES SMD 1206 470R RE 00121 R22 RES SMD 1206 22K RE 00153 R23 RES SMD 1206 10K RE 00150 R24 RES SMD 1206 47K RE...

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

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

Страница 105: ...00915 C21 CAP SMD 0805 1nF CP 00915 C22 CAP SMD 0805 1nF CP 00915 C23 CAP SMD 0805 1nF CP 00915 C24 CAP SMD 0805 1nF CP 00915 C25 CAP SMD 0805 1nF CP 00915 C26 CAP SMD 1206 0 1uF CP 00916 C27 CAP SMD TANT 10uF CP 01575 C28 CAP SMD 1206 0 1uF CP 00916 C29 CAP SMD 1206 0 1uF CP 00916 C30 CAP SMD 1206 10nF CP 00951 C31 CAP SMD 1206 0 1uF CP 00916 C32 CAP SMD 1206 0 1uF CP 00916 C33 CAP SMD 1206 0 1uF...

Страница 106: ... R6 RES SMD 1206 100R RE 00117 R7 RES SMD 1206 100R RE 00117 R8 RES SMD 1206 270R RE 00106 R9 RES SMD 1206 270R RE 00106 R10 RES SMD 1206 270R RE 00106 R11 RES SMD 1206 270R RE 00106 R12 RES SMD 1206 270R RE 00106 R13 RES SMD 1206 270R RE 00106 R14 RES SMD 1206 39K RE 00156 R15 RES SMD 1206 33K RE 00155 R16 RES SMD 1206 470R RE 00121 R17 RES SMD 1206 10K RE 00150 R18 RES SMD 1206 2K7 RE 00126 R20 ...

Страница 107: ...RRETT COMMENTS DESIGNATOR P N TH1 THERMISTOR 10K TH 02532 U1 IC PIC16C55 SMD IC 02745 U2 IC M3004 SMD IC 02794 U3 IC ULN2003 SMD IC 02717 U5 IC TL072 SMD IC 02737 U6 IC 78L05 TO 92 IC 02467 U7 IC LM2950 TO 92 IC 02755 VR1 POT 10K LINEAR RE 02810 X1 CRYSTAL 11MHz FI 07620 X2 CERAMIC RESONATOR 455KHz FI 07626 Issue A13 Sheet 3 of 3 PAGE 107 ...

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

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

Страница 110: ...F CP 00916 C5 CAP SMD 1206 1uF CP 00908 C6 CAP SMD 0805 1nF CP 00915 C7 CAP SMD 1206 0 1uF CP 00916 C8 CAP SMD 1206 0 1uF CP 00916 C9 CAP SMD 1206 0 1uF CP 00916 C10 CAP SMD 1206 0 1uF CP 00916 C11 CAP SMD 1206 0 1uF CP 00916 P2 HEADER SOCKET 14 PIN CN 04123 R1 RES SMD 1206 10K RE 00150 R2 RES SMD 1206 10K RE 00150 R3 RES SMD 1206 1M RE 00178 R4 RES SMD 1206 1K RE 00122 S1 SWITCH DIP 6 SW 05557 U1...

Страница 111: ...BARRETT 900 SERIES TRANSCEIVERS GPS ALE Motherboard Overlay PAGE 111 ...

Страница 112: ...BARRETT 900 SERIES TRANSCEIVERS GPS ALE Motherboard Schematic PAGE 112 900 GPS ALE Schematic ...

Страница 113: ...4013 P2 P2A CONN 16 WAY RIBBON PCB MNT 4008 P3 CONN 8 WAY SOCKET 4019 Q1 TRANSISTOR TO 92 BC548 2204 Q3 TRANSISTOR TO 92 BC548 2204 R1 RES 1 4W 10K 0261 R2 RES 1 4W 10K 0261 R3 RES 1 4W 220K 0277 R4 RES 1 4W 220K 0277 R5 RES 1 4W 220K 0277 R6 RES 1 4W 220K 0277 R7 RES 1 4W 220K 0277 R8 RES 1 4W 220K 0277 R10 RES 1 4W 220K 0277 R11 RES 1 4W 2K2 0253 U1 I C 4053 2464 U2 I C 7805 TO 220 2467 U3 I C 7...

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

Страница 115: ...BARRETT 900 SERIES TRANSCEIVERS 950MR Low Pass Filter Power PCB schematic See File 900MR FILTERBOARD SCHEMATIC pdf PAGE 115 ...

Страница 116: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 116 This page has been intentionally left blank ...

Страница 117: ... 0916 C91 CAP SMD TANTALUM 10uF 16V 1580 C95 CAP SMD 1206 0 1uF 5 63V 0916 C96 CAP SMD 1206 0 1uF 5 63V 0916 C97 CAP SMD 1206 0 1uF 5 63V 0916 C98 CAP SMD 1206 0 1uF 5 63V 0916 C100 CAP SMD 1206 0 1uF 5 63V 0916 C101 CAP SMD 1206 0 1uF 5 63V 0916 C102 CAP SMD 1206 0 1uF 5 63V 0916 C103 CAP SMD 1206 0 1uF 5 63V 0916 C104 CAP SMD 1206 0 1uF 5 63V 0916 C105 CAP SMD 1206 0 1uF 5 63V 0916 C106 CAP SMD ...

Страница 118: ...ICA 15pF 500V 2140 C168 CAP SILVER MICA 12pF 500V 2117 C169 CAP SILVER MICA 12pF 500V 2117 C170 CAP SILVER MICA 180pF 500V 2146 C171 CAP SILVER MICA 15pF 500V 2140 C172 CAP SILVER MICA 100pF 500V 2125 C173 CAP SILVER MICA 27pF 500V 2119 C174 CAP SILVER MICA 68pF 500V 2123 C175 CAP SILVER MICA 22pF 500V 2151 C177 CAP SILVER MICA 100pF 500V 2125 C178 CAP SILVER MICA 39pF 500V 2141 C180 CAP SILVER MI...

Страница 119: ...19 CAP SILVER MICA 820pF 500V 2134 C220 CAP SILVER MICA 330pF 500V 2147 C222 CAP SILVER MICA 1000pF 500V 2106 C223 CAP SILVER MICA 820pF 500V 2134 C224 CAP SILVER MICA 220pF 500V 2128 C225 CAP SILVER MICA 12pF 500V 2117 C226 CAP SILVER MICA 330pF 500V 2147 C227 CAP SILVER MICA 820pF 500V 2134 D1 DIODE 1N4004 3303 D2 DIODE 1N4004 3303 D3 DIODE 1 5KE18 3319 D10 DIODE ULTRA FAST ES1B 3312 D11 DIODE U...

Страница 120: ... 5 10R 0225 R78 RES 1 4W 1206 5 10R 0225 R79 RES 1 4W 1206 5 10R 0225 R83 RES SMD 1206 5 1K 0122 R84 RES SMD 1206 5 1K 0122 R85 RES SMD 1206 5 1K 0122 R87 RES SMD 1206 5 10R 0111 R88 RES 1 4 WATT 5 100K 0273 R89 RES 1 4 WATT 5 100K 0273 R91 RES SMD 1206 5 100R 0117 R101 RES 1 4W 1206 5 10R 0225 R105 RES SMD 1206 5 10R 0111 RL2 RELAY EA2 12 5013 RL3 RELAY EA2 12 5013 RL4 RELAY EA2 12 5013 RL5 RELAY...

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

Страница 122: ...BARRETT 900 SERIES TRANSCEIVERS 980PSU DC DC Switch Mode Power Supply Schematic PAGE 122 GATEIN 3 8 4 980 24 13 8VDC SMPSU ...

Страница 123: ...Polyester 1U 63v 0 2 L S 2115 C18 Cap Polyester 1U 63v 0 2 L S 2115 C19 Cap Polyester 1U 63v 0 2 L S 2115 D2 Diode 1N914 1N4148 3302 D3 Diode 1N4004 3303 L1 Inductor 8 6uH 3280 L2 Inductor 6uH 3290 L3 Inductor 8 6uH 3280 Q1 Trans BS170 Mosfet 2208 Q2 Trans BC556 2231 Q3 Trans BS170 Mosfet 2208 Q4 Trans BC548 T 2204 R1 Res 1 4w 5 3R3 0220 R2 Res 1 4w 5 3R3 0220 R3 Res 1 4w 5 10R T 0225 R4 Res 1 4w ...

Страница 124: ...y Microprocessor Board 950 Hi Stability 9929 001 980 9939 001 930 950 9931 001 Assembly Front Panel 930 9908 001 950 9907 001 980 9906 001 Assembly RF Audio Board All 9933 002 Assembly PA Board 930 950 9935 002 980 9937 002 Assembly Side Plate All Models Left 900M35A4 L Right 900M35A4 R Assembly Chassis All Models 900M9440 ...

Страница 125: ...S 4626S Screw M4x8 Black C Sunk R H 4636 Washer M3 Shakeproof 4641 Loom RF Audio To PA 26Way 9083 BC930 Front Panel Complete 9908 001 Screw 4Gx3 8 Selftap 4628T Knob Black S151 250 5410 Knob Black Cap C151 5412 Membrane Keypad BC930 Only 5548 LBL 930 F P 5902 LBL HORIZ LED F P 5906 LBL BARRETT LOGO F P 5960 Plastic Front Panel Local 8401 Loom RF Audio To Frt Pnl 9090 BC950 930 Front Panel PCB Assy...

Страница 126: ...d held BCA50003 Acc External Speaker BCA50011 I C PALCE 16V8Q 25PC 2750S I C 27 C 512 2772S Screw M3x5 Pan 1A 4605 Screw M3x8 Black Pan Phillps 4637S 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 4613 Nut M3 Hex Z P 4621 Screw M6x12 Pan...

Страница 127: ...M6x12 Pan 1A S 4626S Screw M4x8 Black C Sunk R H 4636 Washer M3 Shakeproof 4641 Loom RF Audio To PA 26Way 9083 BC950 Front Panel Complete 9907 001 Knob Black S151 250 5410 Knob Black Cap C151 5412 Membrane Keypad BC950 Only 5549 LBL 950 F P 5903 LBL HORIZ LED F P 5906 LBL BARRETT LOGO F P 5960 Plastic Front Panel Local 8401 Loom RF Audio To Frt Pnl 9090 BC950 930 Front Panel PCB Assy 9904 001 950 ...

Страница 128: ...M6x12 Pan 1A S 4626S Screw M4x8 Black C Sunk R H 4636 Washer M3 Shakeproof 4641 Loom RF Audio To PA 26Way 9083 BC950 Front Panel Complete 9907 001 Knob Black S151 250 5410 Knob Black Cap C151 5412 Membrane Keypad BC950 Only 5549 LBL 950 F P 5903 LBL HORIZ LED F P 5906 LBL BARRETT LOGO F P 5960 Plastic Front Panel Local 8401 Loom RF Audio To Frt Pnl 9090 BC950 930 Front Panel PCB Assy 9904 001 950 ...

Страница 129: ...k Cradle Clip BC550 8430 Acc Cable Power Lead BCA50002 Acc Microphone hand held BCA50003 Acc External Speaker BCA50011 I C PALCE 16V8Q 25PC 2750S I C 27 C 512 2772S Screw M3x5 Pan 1A 4605 Screw M3x8 Black Pan Phillps 4637S 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 LBL 950 F P 5903...

Страница 130: ...le Power Lead BCA50002 Acc Microphone hand held BCA50003 Acc External Speaker BCA50011 I C PALCE 16V8Q 25PC 2750S I C 27 C 512 2772S Screw M3x5 Pan 1A 4605 Screw M3x8 Black Pan Phillps 4637S 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 LBL 950 F P 5903 LBL BARRETT LOGO F P 5960 Loom ...

Страница 131: ...x Z P 4621 Screw M6x12 Pan 1A S 4626S Screw M4x8 Black C Sunk R H 4636 Washer M3 Shakeproof 4641 LBL 950 F P 5903 LBL BARRETT LOGO F P 5960 500 900series Rmt Front Panel 9640 Plastic Front Panel Blank 8402 950 Micro TCXO PCB Assy Ver1 9929 001 Coax Link Cbl 900MICRO RFA L01 900C71A2 1 Coax Link Cbl 900MICRO RFA L02 900C71A2 2 Coax Link Cbl 900MICRO RFA CIO 900C71A2 C BC900 RF AUDIO PCB ASSY COMP 9...

Страница 132: ...1 Screw M6x12 Pan 1A S 4626S Screw M4x8 Black C Sunk R H 4636 Washer M3 Shakeproof 4641 Lbl Rear Main 980 Xceiver 5959 Loom RF Audio To PA 26Way 9083 BC980 Front Panel Complete 9906 001 Knob Black S151 250 5410 Knob Black Cap C151 5412 Membrane Keypad BC980 5554 LBL 980 F P 5904 LBL HORIZ LED F P 980 5915 LBL BARRETT LOGO F P 5960 Plastic Front Panel Local 8401 Loom RF Audio To Frt Pnl 9090 BC950 ...

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

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

Страница 135: ...RAMMING CABLE LENGTH 1 5 METRE B DB9F SOLDER TYPE P No 4017A A B 7 2 3 BLUE RED YELLOW GND RxD TxD TxD RxD COLOUR SIGNAL CABLE CORE DETAILS 5 3 2 DB25 3 2 7 P No 9651 ADAPTER DB25F To DB9M 9 CORE CABLE P No 6582 P No 4017 DB9 SHELL P No 4023A DB25 SHELL P No 4023 DB25M SOLDER TYPE A 930 950 980 Programming Cable Schematic ...

Страница 136: ...y Body top cover 81A0T Drab Olive 74A0T Periwinkle Assembly Body bottom cover 81A0B Drab Olive 74A0B Periwinkle Assembly PA PCB on plate complete 9936 002 Assembly Micro TCXO SMPS PCB 9932 002 Assembly RF audio PCB complete 9933 002 Assembly Front Panel complete 9946 001 Drab Olive 9956 001 Periwinkle Loom BC940 Audio RF to PA 9087 RF audio Micro Mounting Plate 940M02A6 PAGE 136 ...

Страница 137: ...Link Cbl 900MICRO RFA CIO 900C71A2 C3 Loom BC940 Audio RF To P A 9087 940 Micro TCXO SMPS PCB Assy 9932 002 Coax Link Cbl 900MICRO RFA L01 900C71A2 14 Coax Link Cbl 900MICRO RFA CIO 900C71A2 C4 BC900 RF Audio PCB Assy Complete 9933 002 Coax Link Cbl 900RFA PA Rx Tx 900C71A2 R4 940 PA PCB on Plate Assy Complete 9936 002 940 PA Mounting Plate 940M03A6 900 Common PA PCB Assy Ver2 9934 002 BC940 Rear ...

Страница 138: ...Link Cbl 900MICRO RFA CIO 900C71A2 C3 Loom BC940 Audio RF To P A 9087 940 Micro TCXO SMPS PCB Assy 9932 002 Coax Link Cbl 900MICRO RFA L01 900C71A2 14 Coax Link Cbl 900MICRO RFA CIO 900C71A2 C4 BC900 RF Audio PCB Assy Complete 9933 002 Coax Link Cbl 900RFA PA Rx Tx 900C71A2 R4 940 PA PCB on Plate Assy Complete 9936 002 940 PA Mounting Plate 940M03A6 900 Common PA PCB Assy Ver2 9934 002 BC940 Rear ...

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

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

Страница 141: ... 1uF CP 00916 C9 CAP SMD 0805 1nF CP 00915 C10 CAP SMD 0805 1nF CP 00915 C11 CAP SMD TANT 10uF CP 01580 C12 CAP SMD 0805 68pF CP 00932 L1 CHOKE SMD 100uH IN 03605 L2 CHOKE SMD 100uH IN 03605 L3 CHOKE SMD 100uH IN 03605 P1 PLUG 13 PIN DOUBLE ROW CN 04108 P2 PLT 8 PIN M PANEL SOCKET CN 00083 P3 PLT 5 PIN M PANEL SOCKET CN 00081 R1 RES SMD 1206 10K RE 00150 R2 RES SMD 1206 10K RE 00150 R3 RES SMD 120...

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

Страница 143: ...2 L3 L4 L5 L6 L7 L8 L9 L10 C1 RESET RESET RESET RESET RESET RESET RESET PAD1 C2 47p 500V C3 100p 500V R S RL13 EA2 12T R S RL14 EA2 12T VDD VDD RESET C2 RESET C3 L2 L3 L4 L5 L6 L7 L8 L9 L10 C1 C2 C3 PAD1 Z2 Z1 T2 2 1 R S RL15 EA2 12T R S RL16 EA2 12T VDD VDD P2 RF IN L14 220U C12 0U1 C13 10P R8 4K7 C14 0U1 D3 BAV99 D4 BAV99 D5 BAV99 C15 0U1 R9 15K R10 27K 5 RESET Z1 Z2 C16 0U1 C27 10U 5 C28 10U C1...

Страница 144: ... CAP SMD 1206 10nF CP 00951 C25 CAP SMD 1206 10nF CP 00951 C27 CAP SMD TANT 10uF CP 01575 C28 CAP SMD TANT 10uF CP 01575 C29 CAP SMD 1206 0 1uF CP 00916 C30 CAP SMD 1206 0 1uF CP 00916 C31 CAP SMD 1206 10nF CP 00951 C32 CAP SMD 0805 1nf CP 00915 C33 CAP SMD 0805 12pF CP 00923 C34 CAP SMD 1206 0 1uF CP 00916 C35 CAP ELECTRO 470uF CP 01755 C36 CAP SMD 1206 10nF CP 00951 C37 CAP SMD 1206 10nF CP 0095...

Страница 145: ...6 RES SMD 1206 47R RE 00113 R17 RES SMD 1206 10K RE 00150 R18 RES SMD 1206 10K RE 00150 R20 RES SMD 1206 100K RE 00170 R21 RES SMD 1206 100K RE 00170 R22 RES SMD 1206 10K RE 00150 R23 RES SMD 1206 10K RE 00150 RL1 RELAY EA2 12T LATCHING RL 00077 RL2 RELAY EA2 12T LATCHING RL 00077 RL3 RELAY EA2 12T LATCHING RL 00077 RL4 RELAY EA2 12T LATCHING RL 00077 RL5 RELAY EA2 12T LATCHING RL 00077 RL6 RELAY ...

Страница 146: ...ATOR P N T3 TRANSFORMER 940 ATU T1 TF 00098 U1 IC PIC16C73ACT SMD IC 00032 U2 IC ULN2003 IC 02360 U3 IC ULN2003 IC 02360 U4 IC 74HC4094 IC 00074 U5 IC 74HC4094 IC 00074 U7 IC 78L05ACM IC 00076 U8 IC LM339N IC 02360 U9 IC ULN2003 IC 02360 X1 CRYSTAL 20MHz CR 00202 Issue A3 Sheet 3 of 3 BARRETT 900 SERIES TRANSCEIVERS PAGE 146 ...

Страница 147: ... Panel PCB assy 9937 Cable Assy 940ATU Front Panel 940C63A0 940 ATU Machined Front Panel Drab Olive 940M82A1 940 ATU Chassis Ver 2 940M85A0 940 ATU Whip Ant Mount Base 940M48A1 940 ATU Balun 25 1 940I49A0 940 ATU Balun 25 1 940I49A0 10m Wire Antenna Kit 940 Manpk 7350 Cable Assy 940ATU Control 9094 Cable Assy 940ATU RF 9095 Screw M4 x 173mm BC940 Only 4619 940 ATU Main Housing Assy Periwinkle 9102...

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

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

Страница 150: ...8 PIN M PANEL SOCKET CN 00083 P3 CONN PLUG 3 PIN POLARISED CN 14102 P4 CONN PLUG 2 PIN POLARISED CN 14101 P5 CONN PLUG 2 PIN POLARISED CN 14101 Q1 FET SMD 2N7002 LT 1 TR 02282 R1 RES SMD 1206 330R RE 00107 R2 RES SMD 1206 330R RE 00107 R3 RES SMD 1206 330R RE 00107 R4 RES SMD 1206 330R RE 00107 R5 RES SMD 1206 100K RE 00170 R6 RES SMD 1206 100K RE 00170 Issue A2 Sheet 1 of 1 BARRETT 900 SERIES TRA...

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

Страница 152: ...Socket panel mnt 5pin 4167 Cap for panel mnt connectors 4169 Screw M3x6 CSK POZI BLACK 4609 LBL 940 Break out Box 5994 Mwork Enclosure 940 BrkoutBox 940M60A0 Cable Assy 940 Dist Unit 940C64A0 Socket cable mnt 8pin 4166 Grommet Straight Thro 4910 Cable Tie Black 100mm 5301A Cable 10 way 6534 Wire PTFE Black 19 0 16mm 6536 Cable Wire 7 2mm Black 6559 Sleeving 4mm ID 6570 PAGE 152 ...

Страница 153: ...BARRETT 900 SERIES TRANSCEIVERS 940 Charge reg 13Ah 12V DC input PCB overlay Barrett P N BCA94021 PAGE 153 ...

Страница 154: ...940 NiMH Battery Charger Booster Section Schematic 940D50A2 BARRETT 900 SERIES TRANSCEIVERS 940 Charge Reg 13Ah 12V DC input PCB Schematic Barrett P N BCA94021 PAGE 154 ...

Страница 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 ...

Страница 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 ...

Страница 157: ...06 2n2 CP 00951 C18 CAP SMD 1206 0 1uF CP 00916 C19 CAP SMD TANT 10uF CP 01580 C20 CAP SMD 1206 0 1uF CP 00916 C21 DO NOT FIT C22 CAP SMD 1206 0 1uF CP 00916 C23 CAP SMD TANT 10uF CP 01580 C24 CAP SMD 1206 1uF CP 00908 C25 CAP SMD 1206 1uF CP 00908 D1 DIODE BAV99 SMD DI 03317 D2 DIODE BAV99 SMD DI 03317 D3 DIODE 1N5821 DI 03322 D4 DIODE 1N4004 DI 03303 D5 DIODE 1N4004 DI 03303 D6 DIODE 1N4004 DI 0...

Страница 158: ...0150 R21 RES SMD 1206 12K RE 00149 R22 RES SMD 1206 20K RE 00010 R23 RES SMD 1206 1K0 RE 00122 R24 RES SMD 1206 100K RE 00127 R25 RES SMD 1206 100K RE 00170 R26 RES SMD 1206 56K RE 00159 R27 RES SMD 1206 680K RE 00175 R28 RES SMD 1206 18K RE 00152 R29 RES SMD 1206 10K RE 00150 R30 RES 0R1 2 5 WATT RE 00754 R31 RES 220R 1 4 WATT RE 00241 R32 RES SMD 1206 100K RE 00170 R34 RES SMD 1206 5K6 RE 00129 ...

Страница 159: ...P N PC 940P52A4 Issue A4 Sheet 3 of 3 Assembly P N SA 09954 COMPONENT DESCRIPTION BARRETT COMMENTS DESIGNATOR P N U2 IC LM339 SMD IC 02730 U3 IC MC33340 SMD IC 02726 U4 IC MC1458G SMD IC 02791 U5 IC LM339 SMD IC 02730 U6 IC 78L12 TO 92 IC Z1 ZENER 5V6 SMD DI 03311 Z2 ZENER 5V6 SMD DI 03311 ...

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

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

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

Страница 163: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 163 940 Programming Cable Schematic 940 Transceiver Programming Cable Schematic ...

Страница 164: ...Note Specifications and drawings in this manual are subject to change without notice BARRETT 900 SERIES TRANSCEIVERS PAGE 164 ...

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