Codan_9323_9360_9390_9780_serv.pdf

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1、HF SSB Transceiver 9323, 9360, 9390 and 9780 Technical Service Manual No part of this handbook may be reproduced, transcribed, translated into any language or transmitted in any form whatsoever without the prior written consent of Codan Pty Ltd 1994 Codan Pty Ltd. Codan part number 15-02051 Issue 4,

2、 August 1997 Head Office Codan Pty Ltd ACN 007 590 605 81 Graves Street Newton South Australia 5074 Telephone+61 8 8305 0311 Facsimile+61 8 8305 0411 Email .au Worldwide Web .au Marketing Offices Codan Pty Ltd Suite 11A 2 Hardy Street South Perth Western Australia 6151 Telephone+61 8 9368 5282 Facsi

3、mile+61 9 8368 5283 Codan (UK) Ltd Gostrey House Union Road Farnham, Surrey GU9 7PT United Kingdom Telephone+44 1252 717 272 Facsimile+44 1252 717 337 Telex 858355 HF SSB Transceiver 9323/9360/9390/9780 Technical Service Manuali Table of contents Index 1About this manual Standards and icons.1-2 Defi

4、nitions.1-3 Acronyms and abbreviations.1-3 Glossary.1-6 Circuit reference designations.1-6 Units.1-7 Unit multipliers.1-8 About this issue.1-9 Associated documents.1-9 Other documents.1-9 2General information Overview.2-1 Front and rear panel diagrams.2-2 Specifications.2-5 General specifications.2-

5、5 Receiver specifications.2-7 Transmitter specifications.2-8 Connectors.2-10 Microphone.2-10 Remote control.2-10 Antenna control.2-11 External alarm.2-12 RS232 .2-12 Loudspeaker.2-12 Option GP, general purpose.2-13 Option M, morse.2-13 Table of contents iiHF SSB Transceiver 9323/9360/9390/9780 Techn

6、ical Service Manual Programming cable.2-13 Cloning cable.2-14 Options.2-15 3Brief description General.3-2 Control and switching.3-3 Synthesiser.3-4 Receive path.3-5 Transmit path.3-6 4Technical description Control and supply voltages .4-1 Power on.4-1 Power off.4-2 Supply voltages .4-2 Receive/Trans

7、mit switching.4-4 Receiver.4-5 Input low-pass filters.4-5 High-pass filters .4-5 RF amplifier.4-5 LPF and first mixer .4-6 45 MHz band-pass filter.4-6 Second mixer.4-6 Noise limiter.4-6 455 kHz filter and IF amplifier.4-7 Demodulator.4-7 Automatic gain control.4-7 Voice mute.4-9 Volume control and a

8、udio output amplifier.4-10 Low voltage Tx inhibit.4-10 Transmitter exciter.4-11 Microphone amplifier/compressor.4-11 Table of contents HF SSB Transceiver 9323/9360/9390/9780 Technical Service Manualiii Modulator.4-12 455 kHz filter and first mixer .4-12 45 MHz band-pass filter .4-13 Second mixer and

9、 exciter output filter.4-13 Tune.4-13 Local oscillators .4-15 General.4-15 VCO1 and phase lock loop (0402972) .4-15 VCO1 and phase lock loop (04-03135).4-16 VCO2 and phase lock loop (04-02972).4-17 VCO2 and phase lock loop (04-03135).4-18 455 kHz local oscillator for USB/LSB (04-02972) .4-18 455 kHz

10、 local oscillator for USB/LSB (04-03135) .4-19 Clarifier.4-20 Microprocessor and peripheralstransceiver.4-21 Microprocessor .4-21 I2C buses.4-22 Synthesiser bus.4-23 PA serial bus.4-23 RS232 bus.4-23 Tone generation .4-23 A/D inputs.4-24 Antenna control.4-24 E2PROM write protect.4-25 Microprocessor

11、and peripheralscontrol panel .4-26 Microprocessor .4-26 I2C buses.4-26 Keypad.4-26 Select control .4-27 Volume control.4-27 Display.4-27 Microphone keypad .4-28 Data input/output.4-28 S+ RF indicator.4-29 Mute indicators.4-29 Table of contents ivHF SSB Transceiver 9323/9360/9390/9780 Technical Servi

12、ce Manual Front panel back light.4-29 PA and filters.4-30 PTT and PA filter control.4-30 Gain control stage.4-30 Pre-driver stages.4-30 Driver stage.4-31 Output stage and bias regulator.4-31 Output filters .4-31 ALC control.4-32 Selective calling.4-34 Calibration.4-34 Selective calling.4-35 Emergenc

13、y call (RFDS) and two-tone calling.4-36 Emergency alarm (marine).4-37 PA Exciter Interface.4-38 Filter and PTT control.4-38 Power On/Off.4-38 Transmit Amplifier.4-39 Receiver Path.4-39 Antenna Control.4-39 PA assembly 4404.4-40 Options.4-41 Option AM.4-41 Option CW.4-41 Option F.4-41 Option GP.4-42

14、Option M.4-42 Option PH.4-42 Option STE (9390 only).4-43 Accessories.4-44 RS232/I2C Interface .4-44 Table of contents HF SSB Transceiver 9323/9360/9390/9780 Technical Service Manualv 5Maintenance General.5-1 CMOS devices.5-1 Circuit boards.5-2 Transmitter precautions .5-3 Probe precautions.5-4 Surface mounted c