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AT power supply



 
 
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  #1  
Old July 28th 03, 06:44 PM
Some One
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Default AT power supply

The green wire goes to the case someplace to ground it out.

The other four go back in the same way the first four came off.

Just guessing, but you do NOT want the black and white wires connected
when you turn the switch on. I'm not sure which of the other wires
pair with the black or white.

"Hughes Patans" wrote in message
.. .
Hello,

I just unplugged a disfinctional AT power supply. I got a new one,

and now,
i have a problem.
There are 5 wires extending out of the power supplyl. There are

white,
black, blue, brown wires which have a female connector destined to

be
plugged into the physical switch of the computer. Also, there is a

green
wire, which has a flat washer-style connector, which i believe is

the
ground.

The physical switch of the computer has 4 male connectors, arranged

as
follows:
------ -- front face of the computer.
| |

\ /

In what order do i have to plug the 4 color wires?
what about the green wire? there doesn't seem to be any connector

for it....
on the MOBO maybe?


thanks.




  #2  
Old July 28th 03, 06:56 PM
Hughes Patans
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Default

The other four go back in the same way the first four came off.

That's the thing, i don't remember which order they were in, and also, the
new power supply has different colors for the wires....



  #3  
Old July 28th 03, 07:05 PM
Pen
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Default

The green wire can go under any convenient screw/bolt on the
chassis. The black/white are a pair as are the brown/blue.
Using an ohmmeter check the switch pins to see what gets
shorted together when turned on. I wo8uld assume that the like
labeled pins are a pair, but it doesn't hurt to double check.

"Hughes Patans" wrote in message
.. .
Hello,

I just unplugged a disfinctional AT power supply. I got a new one,

and now,
i have a problem.
There are 5 wires extending out of the power supplyl. There are

white,
black, blue, brown wires which have a female connector destined to

be
plugged into the physical switch of the computer. Also, there is a

green
wire, which has a flat washer-style connector, which i believe is

the
ground.

The physical switch of the computer has 4 male connectors, arranged

as
follows:
------ -- front face of the computer.
| |

\ /

In what order do i have to plug the 4 color wires?
what about the green wire? there doesn't seem to be any connector

for it....
on the MOBO maybe?


thanks.



  #4  
Old July 28th 03, 08:09 PM
Eric
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Posts: n/a
Default

Pen wrote:

The green wire can go under any convenient screw/bolt on the
chassis. The black/white are a pair as are the brown/blue.
Using an ohmmeter check the switch pins to see what gets
shorted together when turned on. I wo8uld assume that the like
labeled pins are a pair, but it doesn't hurt to double check.


This is not correct, or is at least misleading. The BLUE should get
shorted to the WHITE when the switch is engaged, and the BROWN should
get shorted to the BLACK. There should be a plastic ridge down the
center of the switch. Make sure that the BLUE and WHITE wires are on
one side of this ridge, and that the BROWN and BLACK wires are on the
other side.
  #5  
Old July 28th 03, 08:11 PM
rcm
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Default

Good reference site. But it only has the push button switch, not the rocker
type switch some old AT's have.

I connected a few switches wrong blowing the breaker. I was going on my
experience but some switches are different. Best way is to confirm the
switch with an ohmmeter as to which pins are a pair.
"Wheat Muncher" wrote in message
...
in artical Hughes
Patans enlightened us all with these words of wisdom:

The other four go back in the same way the first four came off.


That's the thing, i don't remember which order they were in, and also,
the new power supply has different colors for the wires....





This should help.

http://home.fuse.net/Walts_Place/powersupplyconn.htm



  #6  
Old July 28th 03, 08:33 PM
Wheat Muncher
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Default

in artical . ca rcm
enlightened us all with these words of wisdom:


I connected a few switches wrong blowing the breaker. I was going on
my experience but some switches are different.


I know, I always get paranoid haveing try to reconnect them to a different
switch. I try to keep them the same if I have to switch them (ie: rocker to
rocker and button to button).

Best way is to confirm
the switch with an ohmmeter as to which pins are a pair.


Agreed.


  #7  
Old July 29th 03, 11:03 PM
Manny
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Default

"Pen" wrote in message t...

The black/white are a pair as are the brown/blue.
Using an ohmmeter check the switch pins to see what gets
shorted together when turned on.


So you're supposed to short the black & white together and
the brown & blue together? That's the impression you give,
even though you didn't mean it.

Hughes Patans:

The power comes in on the black & white wires and goes out
the brown and blue wires. The switch has to be wired for this,
and if you look at the switch from the front, that is, down its
long end, you'll want to connect the black and brown wires on
the right and the white and blue wires on the left.
  #8  
Old July 30th 03, 07:12 AM
ric
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Posts: n/a
Default

Manny wrote:

The black/white are a pair as are the brown/blue.
Using an ohmmeter check the switch pins to see what gets
shorted together when turned on.


So you're supposed to short the black & white together and
the brown & blue together? That's the impression you give,
even though you didn't mean it.


Gawd, I hope he didn't mean it!
 




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