FAQ / Operational / Misc.
- Avionics Power Requirements: Can I use my Icom handheld or a panel mount radio in an aircraft or a vehicle with a 24 Volt electrical system?
- AH2: TUNE and THRU LEDs are not lighting
- AH-2 / AH-3 / AT-120-Won't start tuning.
- AH2 / AH3 / AT120: Won't tune on some bands.
- Receivers All, Audio Buzz: The buzz can be heard in the speaker or headphones even with volume control set to minimum.
- R71: Common Problems/Repairs
- IC281: Cannot turn on or off, no volume control, and no tuning control on my 281.
- M600: Common problems/Repairs
- IC820: Intermittent / no RX/TX. Display reads "_______".
- I-820 Stuck in TX mode.
- IC820: Some front panel controls on left side do not work (mode switch, lock switch, etc).
- IC781: Repairs, Symptoms and Maintenance
- IC775 Display dims in CW TX when AF volume is turned up.
- IC775: Rotary encoder shaft does not turn smoothly; feels rough.
- IC775 does not power-up.
- IC775: Harsh TX CW note.
- IC775: Raspy RX audio when warm; it sounds like intermodulation.
- IC775: TX LED indicator does not light.
- IC775: No TX output.
- IC765: Repair/Symptoms and Maintenance
- IC751: Repair, Symptoms and Maintenance
- IC740: Repairs/Symptoms and Maintenance
- F21GM: Programming CTCSS tones in an F21GM
- IC737: Repair/Symptoms and Maintenance
- IC736: Repair/Symptoms and Maintenance
- IC735: Repair/Symptoms and Maintenance
- IC730: Repair/Symptoms and Maintenance
- IC706 Poor Audio: My 706 has low/distorted RX audio.
- IC706: Repair/Symptoms and Maintenance
- IC4KL: Repair/Symptoms and Maintenance