If you are performing a specific repair, focus on these sections: Section 4 (Adjustment Procedures)
For deep technical data like schematics and internal alignment, sites like Mods.dk are well-known in the ham community for hosting large service files that may require registration to download. Advanced Maintenance: The "Service Mode" IC-705 | Manual Download | Support | Icom Inc. IC-705 | Manual Download | Support | Icom Inc. Instruction, users and service manuals for Icom - Mods.dk icom ic705 service manual full
If you plan to keep your IC-705 for more than 2 years, the $50–80 investment in the official full manual is insurance. If you are performing a specific repair, focus
: Deep-dive explanations of the PA Unit, RF Unit, and Main Unit logic. and Main Unit logic.