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General| Brand | Icom |
|---|---|
| Model | IC-745 |
| Category | Transceiver |
| Language | English |
Instructions for tuning, covering preset, band selection, and display modes.
Using the preset function for radio operation and frequency display.
How to select between Ham Band and General Coverage modes on the radio.
Operating the band switch and tuning control for frequency selection.
How the frequency display changes based on mode and selected band.
Using the tuning control for frequency adjustment and fine-tuning.
Explanation of the Dial Lock Switch for preventing accidental tuning.
How to use the VFO A and VFO B switches for transmit and receive operations.
Operating the Duplex (Split) switch for split frequency operation.
How to transfer frequencies between VFO A and VFO B.
Description of the RF section, covering receiver, IF, and transmitter circuits.
Detailed description of the transmitter circuits including RF, IF, and PA units.
Comprehensive description of the PLL circuit and its sub-loops.
Circuit diagram and explanation for the Logic Unit.
Block diagram of the PLL and logic units.
Block diagram of the main loop within the PLL.
Block diagram of the sub loop within the PLL.
Top view of the internal components with labels.
Bottom view of the internal components with labels.
View of the RF unit with component labels.
Instructions for installing optional filters like FL-52A/FL-53A.
Information on the Marker Unit IC-EX241, including calibration.
Details on the FM Unit IC-EX242, including assembly and operation.
Identification of front panel parts.
Identification of more front panel parts.
Connector connections for the Logic/PLL unit.
Connector connections on the front panel.
Connector connections for the Filter/ACC unit.
Connector connections for the 2nd LO unit.
Disassembly instructions for the rear unit.
Instructions for mounting PA transistors.
Adjustment procedures for the receiver section.
Adjustments for the RF unit.
Adjustments for the main unit.
Continued receiver adjustments including Notch Filter and Squelch.
Adjustments for the SW-F unit.
Adjustments for the IF unit.
Adjustments for the VR-A unit.
Adjustment procedures for the transmitter section.
Adjustments for the SW-C unit.
Adjustments for the IF unit.
Continued transmitter adjustments including COMP meter and RF meter.
Adjustments for the SW-C unit.
Adjustments for the IF unit.
Adjustment procedures for the PLL section.
Adjustments for the 1st LO module.
Adjustments for LPL lock voltage.
Adjustments for PLL lock voltage.
Adjustments within the PLL unit.
Adjustment procedures for common circuits.
Adjustment of RIT/XIT frequency.
Adjustments for the 2nd LO unit.
Adjustments for the RF unit.
Continued adjustments for common circuits like BFO and PBT/COMP.
Adjustments for the SW-F unit.
Adjustments for the main unit.
Adjustments for the IF unit.
Voltage and circuit diagrams for the main unit.
Voltage and circuit diagrams for the RF unit.
Voltage and circuit diagrams for the IF unit.
Voltage and circuit diagrams for the PLL unit.
Circuit diagram for the sub loop.
Circuit diagram for the logic unit.
Circuit diagram for the front unit.
Circuit diagram for the 2nd LO unit.
Circuit diagram for the matrix unit.
Voltage and circuit diagrams for the PA Unit.
Circuit diagram for the filter unit.
Diagram showing unit connections.
Pin connection and maximum ratings for TA7124P IC.
Pin connection and maximum ratings for µPC1181H IC.
Pin connection and maximum ratings for M51201L IC.
Pin connection and maximum ratings for M54459L divider.
Pin connection and maximum ratings for SN74LS02N.
Pin connection and maximum ratings for SN74LS08N.
Pin connection and maximum ratings for SN74LS32N.
Pin connection and maximum ratings for SN74LS90N.
Pin connection and maximum ratings for SN74LS175N.
Pin connection and maximum ratings for SN74LS377N.
Pin connection and maximum ratings for M54844P.
Block diagram of the M54844P.
Timing diagrams for data writing and output.
Pin connection for M50780SP.
Block diagram of the M50780SP.
Maximum ratings for the M50780SP.
Complete schematic diagram of the IC-745.
Schematic diagram of the Main unit.
Schematic diagram of the Main unit.
Schematic diagram of the RF unit.
Schematic diagram of the RF unit.
Schematic diagram of the IF unit.
Schematic diagram of the IF unit.
Schematic diagram of the Logic unit.
Schematic diagram of the Logic unit.
Schematic diagram of the PLL unit.
Schematic diagram of the PLL unit.
Schematic diagram of the Sub Loop.
Schematic diagram of the Sub Loop.
Schematic diagram of the 2nd LO unit.
Circuit diagram for the 2nd LO Unit.
Circuit diagram for the Matrix Unit.
Voltage and circuit diagrams for the PA Unit.
Circuit diagram for the Filter Unit.
Diagram showing unit connections.
Board layout diagrams.
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