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Overview of the manual's scope and purpose.
Safety precautions for personnel handling the equipment.
Procedure for installing the EEPROM in the signaling unit.
Steps and products for installing the duplexer.
Instructions for attaching optional rack-mount brackets.
Procedure for modifying the DC switching circuit for power failure backup.
Steps to remove the outer case of the unit.
Procedure for disassembling the transmitter/receiver section.
Steps to remove the TX-RX unit.
Procedure for disassembling the final assembly unit.
Steps to remove the front panel and sub-panel.
Procedure for disassembling the sub-panel.
Steps to remove the AVR unit.
Steps to remove the power transformer.
Explanation of the transmitter's functional circuit blocks.
Explanation of the receiver's functional circuit blocks.
Detailed description of the squelch circuit operation.
Description of the receiver frequency synthesizer circuit.
Description of the transmitter frequency synthesizer circuit.
Description of the microphone amplifier circuit.
Process of programming the EEPROM using external equipment.
Detailed explanation of the signaling unit's operations.
Functions and specifications of the accessory connector terminals.
Explanation of the Automatic Voltage Regulator (AVR) circuit.
Technical data for the JLC1075DW IC, used in PLL systems.
Technical data for the M51943BML IC, used for reset and reference.
Technical data for the M5222FP IC, an electronic attenuator.
Technical data for M57729 series TX power amplifier IC.
Technical data for the MB504F prescaler IC.
Technical data for the MB3756 voltage regulator IC.
Technical data for the MC3361D IC, used in the IF system.
Technical data for the 93C46PI EEPROM IC.
Technical data for the µPC1242H AF power amplifier IC.
Technical data for the μPD75104G microprocessor IC.
List and description of components in the AVR unit.
List and description of components in the Display unit.
List and description of components in the Final unit.
List and description of components in the Signaling unit.
List and description of components in the TX-RX unit.
List of capacitor types, codes, and values.
List of resistor types and values.
Parts list for the main TKR-820 unit.
Parts list for the AVR unit.
Parts list for the Final unit.
Parts list for DC Back Up modification.
Parts list for the AVR unit.
Parts list for the AVR unit.
Parts list for the Final unit.
Parts list for the Final unit.
Parts list for the Signaling unit.
Parts list for the Signaling unit.
Parts list for the Display unit.
Parts list for the Display unit.
Parts list for the Display unit.
Parts list for the Display unit.
Parts list for the TX-RX unit.
Parts list for the TX-RX unit.
Parts list for the TX-RX unit.
Parts list for the TX-RX unit.
Parts list for the TX-RX unit.
Parts list for the RX VCO.
Parts list for the TX VCO.
Parts list for the MIC AMP.
Parts list for the IF unit.
Parts list for the BPF/VCA unit.
Initial AC voltage and DC output connection settings.
Setup instructions for test equipment.
Procedure for setting voltage under different load conditions.
Checks for protection circuit operation.
Setting procedure involving frequency writing and cable connection.
Adjustment of RX PLL lock voltage.
Adjustment of TX PLL lock voltage.
Adjustment of the TCXO frequency.
Adjustment of transmitter power output (APC).
Adjustment of transmitter frequency.
Adjustment of tone deviation with filter settings.
Adjustment of maximum audio deviation.
Adjustment of microphone sensitivity.
Correction of DQT waveform.
Adjustment of receiver sensitivity.
Adjustment of squelch level and sensitivity.
Adjustment of preset squelch level.
Adjustment of the hangup timer.
Adjustment of the Time-Out Timer.
Adjustment of repeater transmitter deviation.
Adjustment of signaling squelch sensitivity.
Check of the TAKEOVER LED status.
Component and foil side views of RX/TX PLL circuits.
Component and foil side views of the RX VCO circuit.
Component and foil side views of the TX VCO circuit.
Component and foil side views of the MIC AMP circuit.
Component and foil side views of the IF unit circuit.
Component and foil side views of the BPF/VCA circuit.
Component and foil side views of the AVR unit.
Component and foil side views of the Final unit.
Component and foil side views of the Signaling unit.
Component side view of the Display unit.
Component and foil side views of the TX-RX unit.
External visual representation of the KMC-9 microphone.
Steps for removing the microphone chassis.
Steps to remove the microphone element and amplification unit.
Procedure for removing the switch unit.
Method for removing the microphone plug.
List of parts for the KMC-9 microphone.
General operating parameters like frequency range and power.
Receiver performance specifications.
Transmitter performance specifications.
Specifications for signaling functions like QT and DQT.
General