Let’s say your IC-705 is off frequency by 50 Hz. The VFO reads 14.200.000 MHz but your friend hears you at 14.199.950 MHz. Here is how the service manual walks you through a TXCO alignment:
A complete inventory of proprietary and standard part numbers required for ordering replacements. icom ic-705 service manual pdf
Need a replacement encoder knob or a specific screw? The service manual lists the Icom proprietary part numbers. More importantly, it lists the resistor and capacitor values. If you burn out the final transistor, you will find the exact replacement (often an RD15HVF1 or similar) and the surrounding components like the 100-ohm gate resistor. Let’s say your IC-705 is off frequency by 50 Hz