Daniels Electronics Ltd. OST-3H035 Instruction Manual
Also see for MT-3: Instruction manualInstruction manualInstruction manual
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Contents
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DE DANIELSELECTRONICSEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz iiiTABLE OF CONTENTSPage1 GENERAL..........................................................................................1-11.1 Introduction...................................................................................1-11.2 OS(R/T)-3(A/H) Enhanced Synthesizer Family Models ................................1-11.3 Performance Specifications .................................................................1-31.4 Printed Circuit Board Numbering Convention ...........................................1-42 THEORY OF OPERATION......................................................................2-12.1 Internal Power and Control (Digital Board)...............................................2-12.2 Synthesizer Analog Circuitry (Analog Board)............................................2-12.2.1 Common Analog Board Circuitry.......................................................2-12.2.2 29 - 71.4 MHz Analog Board Circuitry ................................................2-32.2.3 118 - 159.4 MHz Multichannel AM Analog Board Circuitry........................2-32.2.4 128 - 174 MHz Analog Board Circuitry................................................2-42.2.5 406 - 470 MHz Analog Board Circuitry................................................2-52.3 Synthesizer Digital Circuitry (Digital Board) .............................................2-62.4 Frequency Control ...........................................................................2-62.4.1 BCD Switch Frequency Control ........................................................2-62.4.2 Frequency Select Handle Frequency Control..........................................2-72.5 Synthesizer Base and Frequency Increment Table .......................................2-72.6 5.0/6.25 kHz Channelization. ..............................................................2-82.7 8.333 kHz Channelization. .................................................................2-82.8 12.5 kHz Channelization....................................................................2-93 SYNTHESIZER ALIGNMENT .................................................................3-13.1 General ........................................................................................3-13.2 Repair Note ...................................................................................3-13.3 Recommended Test Equipment.............................................................3-13.4 OS(R/T)-3(A/H) Synthesizer Factory Configuration ....................................3-13.5 OS(R/T)-3(A/H) Synthesizer Alignment ..................................................3-23.5.1 General .....................................................................................3-23.5.2 Synthesizer Test Points...................................................................3-23.5.3 Synthesizer Removal and Installation...................................................3-33.5.4 Circuit Board Removal ...................................................................3-33.5.5 Frequency Adjustment and Channel Selection.........................................3-33.5.5.1 VHF OS(R/T)-3H 29 - 71.4 MHz VCO Alignment ...............................3-43.5.5.2 VHF OS(R/T)-3A 118 - 159.4 MHz Alignment ...................................3-53.5.5.3 VHF OS(R/T)-3H 128 - 174 MHz VCO Alignment...............................3-53.5.5.4 UHF OS(R/T)-3H 406 - 470 MHz VCO Alignment...............................3-63.5.5.5 Reference Frequency Alignment .....................................................3-63.5.6 Jumper Configuration ....................................................................3-6 |
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