TITLE
    Apple Monitors: Symptoms Associated w/EMF (5/95)
Article ID:
Created:
Modified: 		13979
11/17/93
5/5/95
TOPIC



    I am having severe Extremely Low Level Magnetic Field (EMF) interference problems with Apple 14" AV Color Displays connected to Centris 660AV, Centris 650, and Macintosh LC III computers.

    Symptom: continuous vertical undulating interference on the monitor.

DISCUSSION


    Apple monitors are no more susceptible to EMF than any other monitor on the market today. All monitors demonstrate symptoms associated with EMF if the source is of sufficient strength.

    Here are a few possible solutions:

    1. Check the AC power line for noise. Apple has seen instances where
    noisy power lines induced the exact symptom you describe.

    2. Locate the source of the EMF and then shield the wall between the
    source and the equipment.

    3. Rotate the position of the monitors slightly, this may decrease the
    effect of the EMF field.

    4. Shield the monitors with special five sided mu metal shields. However,
    please note that this is a very expensive solution.


    Article Change History:
    05 May 1995 - Made minor corrections and reformatted.

    Support Information Services

Document Information
Product Area: Monitors-Displays
Category: Macintosh Displays
Sub Category: Apple AudioVision 14 Display

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