Star Tech Journal

m
February 1993
STAR*TECH Journal
ADVANTAGES
is unbroken from the
source.
c) Repeat the
above procedure with
the earth (green)
ground wire.
3. Locate the 12Vdc out-
put line ( usually yellow
or green), disconnect it
from the old supply and
reconnect it to the new
supply 12 V de terminal.
4. Repeat the above pro-
cedure with the 5Vdc
line (usually red).
5. Repeat the above pro-
cedure for the DC
grounds
(usually
black).
0
-+!
~
~b
tl>
+IJ.
Doing the "peter chou" instal-
lation for another older type
supply in this way saves some
time-consuming modifica-
tions. You can use the same
incoming AC cord, which will
still attach and detach for easy
removal.You can use the same
line filter that's probably al-
ready in place for the old "com-
puter" style supply -and the
line fuse too.
iJ _.,ti
• --s
GREEM
w1RC
At TD
AC. FROM
C!>M Pt.ATE:~ P. S.
ISOLATION
lTW-IFtltr\~
Option
Leaving the old supply in place
(~.lows you to utilize the power
~if off switch if you run the AC
directly from the old supply.
This also saves rewiring time.
CONCLUSION
STARE*
TECH~
In the end, you really only
need to stock one type supply-
your favorite "peter chou" type
switcher for all your repair,
replacement and conversion
requirements.