Прислали ответ, проверил теперь сканирует
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always, when you make change in tuner configuration, you must restart
receiver.
This can be done by long pressing power button on the remote control, and
choose RESTART.
After this, tuning sould be OK.
Anyway, it is not good solution to have first tuner not configured.
Second tuner is depended on first tuner, too.
So, both tuners should be configured.
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