Separating monitor from CPU?
DoN Nichols
dnichols at ceilidh.beartrack.com
Sun Mar 10 02:22:42 AEST 1991
In article <1991Mar8.162643.11785 at ssd.kodak.com> staffan at phos.serum.kodak.com (Kenneth Staffan (x37507)) writes:
>Has anyone tried disconnecting the monitor from a 3b1 box in order to
>use it on a monitor pedestal? (or for any other reason, actually.)
>How'd it work?
I haven't actually tried it, but if you do, and are considering
placing it at more than the existing cable's length away from the left side
of the computer (where the cable plugs in), there are two consideratins to
keep in mind.
1) The cable should be shielded, and the shield should be connected to
the chassis of the 3b1, and to the shield of the existing cable.
2) You should consider using a fairly heavy gage wire, probably from a
mimimum of 22ga for short extensions, to perhaps 16ga for in excess
of three feet. The power for the monitor comes through the cable,
at a relatively low voltage (12V). Longer runs would result in the
monitor attempting to operate from lower voltage, resulting in
distorted screen images, and possible damage to the circuitry.
(Also, longer cables would increase capacative loading, which would
lower bandwidth, smearing the nice, crisp video.
You could avoid the problems of the power drop in the cable by
placing the monitor on a base which includes a 12V power supply,
whose input ac is switched by a solid-state relay controlled by the
12V from the computer (so that the monitor is switched off when the
computer is, avoiding possible damage to the phosphor.
Let us know how things turn out.
Good luck
DoN.
--
Donald Nichols (DoN.) | Voice (Days): (703) 664-1585
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