Power Supply; Operating System Settings; Deactivate "Save Power" (Usb Hubs) - Maico MB 11 Classic Operation Manual

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Operation Manual MB 11 Classic

supply

4.3.1 Power

NOTE: The PC used with the MB 11 must either be grounded, or the

laptop must be in used in battery mode.

Use only protective earth conductor plugs and wiring for the power supply.

The lack of grounding will lead to enhanced humming noise with a large

affect on the measurement quality. The buzzing noise also affects the audio

output of computers and produces a masking noise signal. This will falsify

the results of the measurements.

PC battery Mode:

To assure the most undisturbed (humming noise free) measurement and

masking noise free stimuli, it is necessary to disconnect all external accessory

PC devices, such as those with external power supply like USB Units, printers

and local area network cables (LAN).

If it is necessary to use accessory devices while you operate in the battery

mode, ensure a separate continuous and sufficient grounding of your PC.

To get the best possible performance for the MB11 Classic, it might be

necessary to change the properties of the computer / notebook systems

used. A description of these settings is provided below.

Therefore select Run within the "START" column, type devmgmt.msc and

confirm

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