The service menu is intended for technicians with proper calibration equipment, such as a frequency counter. Incorrectly adjusting these values can leave your radio unable to transmit or receive on the correct frequency. frequency targets for aligning the BFO in CW or SSB modes? Anytone 5555n Ii Service Menu - Google Groups
while turning the power on. This defaults the frequency range to 25.615–28.305MHz. Warning: Use with Caution anytone at5555n ii service menu work
The display should now show the service menu items (often starting with "IC9" or similar adjustment codes). Common Service Menu Functions Once inside, you navigate the menu by turning the knob and pressing the (inner channel) knob to select a setting. Modulation Adjustment: Look for settings labeled The service menu is intended for technicians with
Even when following guides, users make mistakes. Here is your fix-it flowchart. Anytone 5555n Ii Service Menu - Google Groups
The service menu is a playground for casual users. Adjusting these settings without a frequency counter or signal generator can easily "brick" the radio's performance.