Velleman Velbus VMB4PD, Руководство пользователя

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VMB4PD
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6. Confirm by pressing the upper left button.
Remarks:
The seconds counter starts from 0 when setting the time. Wait for the beginning of a minute
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Hold the configuration button pressed for 8 seconds to display the contrast mode.
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The display contrast may be set too low if experiencing a blank display. Hold the configuration button
pressed for 8 seconds to switch the module to the configuration menu which allows modifying contrast.
Hold the upper right push button pressed for 3 seconds. The contrast will be set at its maximum.
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The module will automatically quit the configuration mode after 30 seconds of inactivity.
Confirm time
Next clock menu
Setting the minutes