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Flickery monitors

Discussion in 'Hobby Electronics' started by Michael C, Sep 4, 2009.

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  1. Michael C

    Michael C Guest

    Hi Peoples,

    I have a dental surgery with 3 monitors running off the 1 PC via a power
    splitter. The problem is that the monitors flicker when something is
    turned on (probably the air con). The problem appears to be
    interference, not dirty power as running the monitors off a UPS didn't
    help. What I'm wondering is will switching over to use DVI solve the
    problem? Is there any other way to solve the issue? Currently there are
    3 17" LCD monitors running at 1024x768 at 60Hz. Because the cables
    needed to go through the walls the ends had to be cut off and reattached
    so the filters are missing on some ends and the plugs on the end are not
    quite as good as a manufactured one of course.

    What I was thinking was switching to a DVI vga card, running a DVI
    splitter and then using DVI to HDMI adaptors to run HDMI cables through
    the surgery. Then at the other end convert it back to DVI. Before
    spending the cash on new cabling + 2 new monitors (only 1 has DVI) I'm
    wondering on opinions as to whether this is likely to solve the problem.

    Thanks in advance,
    Michael C
  2. **Switching to DVI might help. Or not. You really need to keep those ferrite
    toroids for decent performance. You also MUST use decent cables, if the runs
    are long. The difference in quality between cables running analogue signals
    can be substantial.
  3. moffie

    moffie Guest

  4. Bob Larter

    Bob Larter Guest

    You can't do that on LCDs.
  5. Mr.T

    Mr.T Guest

    Sure you can, it just won't help.

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