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IC-820 most common service | Radioaficion Ham Radio

IC-820 most common service

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icom IC-820 most common service Technical Support

Symptom: Intermittent/no RX/TX. Display reads "_______".

Resolution

PLL unlock. Replace bad X1 crystal oscillator on PLL unit.

 


 

Symptom: Some front panel controls on left side do not work (mode switch, lock switch, etc).

Resolution

Rework bad or cracked solder at J1 connector on SW-A unit.

 


 

Symptom: Stuck in TX mode.

Resolution

Replace bad Q40 transistor on main unit.

© Icom America Inc.

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