The Icom IC-705 service manual PDF typically includes:
Instructions on how to recalibrate the SDR settings, power output levels, and receiver sensitivity.
If your radio receives fine but refuses to transmit or outputs less than the expected 5W (on battery) or 10W (on external power), the service manual helps you trace the bias voltage of the final power amplifier transistors. Issue 3: Touchscreen Unresponsive or Corrupted Display
Icom occasionally updates their firmware and documentation database. Always check the official website first, though they primarily host user manuals rather than full schematics.