Entering an electronic lock
1. Apply voltage, turn on the radio. The radio display will show "SAFE".
2. Simultaneously press the range buttons "U" And "M" and press until prompted "1000" release the buttons.
3. Use the radio buttons 1–4 to enter the radio code number. In this case, use button 1 to enter the first number of the code number, button 2 - the second, etc. For technical reasons, the first number can only be one 1 or none, while each of the other three digits can be indicated by numbers from 0 to 9.
4. Then press the buttons again "U" And "M" simultaneously until the indication on the radio changes to "SAFE". Release the buttons. The instrument is now ready for use again.
Attention! If an incorrect code number is entered by mistake, a flashing indication will appear first "SAFE", then it stays on. Now you can repeat the set operation, but only once. If an incorrect code number is entered again, the radio will be blocked for approximately 1 hour and cannot be put into operation. After 1 hour (the device should have been left on) the electronic unlock can be entered again. This cycle is repeated for all subsequent incorrect attempts.
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