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General| Brand | Icom |
|---|---|
| Model | IC-A3E |
| Category | Transceiver |
| Language | English |
Critical safety advice regarding electrical hazards, liquid exposure, and RF signal limits.
Guidelines for ordering replacement parts, including necessary information.
Essential precautions for disassembly and adjustments, emphasizing safe handling of components.
Diagram showing component placement and identification on the RF unit.
Diagrams illustrating component placement on the Main Unit (Top and Bottom views).
Diagram showing component placement and identification on the Logic Unit.
Detailed explanation of the transceiver's receiver signal path, including filters and amplifiers.
Detailed explanation of the transceiver's transmitter signal path, modulation, and power amplification.
Description of the Phase-Locked Loop (PLL) circuits for frequency stability and control.
Description of the various power supply lines and their functions within the transceiver.
Details on the input/output functions of the CPU's ports for device control.
Procedures and conditions for tuning and adjusting PLL and transmitter parameters.
Procedures for adjusting receiver sensitivity, squelch, and VOR functions.
List and identification of chassis-related mechanical components.
List and identification of mechanical parts specific to the Main Unit.
List and identification of mechanical parts specific to the Logic Unit.
List and identification of mechanical parts specific to the RF Unit.
Diagrams and symbols for various transistors and FETs used in the circuit.
Diagrams and symbols for various diodes used in the circuit.
Top view layout of the PTT unit's printed circuit board.
Layout of the PRT unit's printed circuit board.
Layout of the VCO board's printed circuit board.
Top and bottom view layouts of the RF unit's printed circuit board.
Top and bottom view layouts of the Main Unit's printed circuit board.
Top and bottom view layouts of the Logic Unit's printed circuit board.
Schematic showing voltage distribution and lines within the Main Unit.
Schematic showing voltage distribution and lines within the RF Unit.
Schematic showing voltage distribution and lines within the Logic Unit.
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