Re: Current requirments for xl
From: Jeffrey J. McWilliams (cd827@cleveland.Freenet.Edu)
Date: 05/09/93-12:58:57 PM Z
From: cd827@cleveland.Freenet.Edu (Jeffrey J. McWilliams)
Subject: Re: Current requirments for xl
Date: Sun May 9 12:58:57 1993
In a previous article, dh395@cleveland.Freenet.Edu (Steven J Tucker) says:
>
>
>Does anyone know the ACTUAL min avail current required to operate
>the xl/xe & do all 3 5v lines have to be regulated seperatly..
>
>Also, I have my 800xl hooked to a composite monitor and the
>screen has, what i can only describe as a slight jitter to
>everything... is there any simple mod to the vid section i can do
>to eliminate this? does anyone else experence this or is my
>xl faulty?
>
Steve,
Your screen jitters require the Ben Poehland "SUPER XL VIDEO II"
upgrade. Send a large SASE to the below address and I will return you
a full copy of the upgrade. Requires a couple capacitors, resistors
easily available at your local Radio Shack, and some soldering skill, maybe
some heatshrink tubing. Although three of the pins on the power connector
say +5v, these 3 pins are all connected together, they are not 3 separate
+5 sources. Having more than one pin carry either +5 or ground reduces
the resistance at the connector, thus reducing additional voltage drop
across the power connector and cord. You should use at least a 1A
supply, more if you have more RAM, extra OS ROMS, lots of cartridges,
P:R: connection boxes or stuff like that, as they all draw power from the
computer.
Jeff McWIlliams
--
Jeff McWilliams -->student, Electrical Enginnering, Michigan Tech. Univ.
cd827@cleveland.freenet.edu OR jjmcwill@mathlab.mtu.edu
-----------------------------------------
Return to message index
