[TechAssist] Re: ATX Power supply
- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 26 Jan 2004 12:19:12 -0500
Sometimes there not worth repairing, ATX 250W P.S. used are $20. New
250W ATX P.S with case are $40. That doesn't mean the broken ones can't
be fixed :-)
http://www.oemexpress.com/items.asp?CartId={03E46F80-431C-4A79-B850-54C4
A707A77F}&cc=CASEPOWER
David Lessard
Alexandria Electronics
50 Harrison Street
Alexandria, Ontario
K0C-1A0
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Gary McCartney
Sent: Monday, January 26, 2004 11:22 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: ATX Power supply
Barry, I have repaired a couple of computer power suppplies which were
dead. These were under 300W output. The problems were the 2 switching
transistors in the primary side, both were 2SC3039's (against the
heatsink). They checked ok out of circuit but were actually bad. New
ones solved it.
Gary McCartney
McCartney Electronics
Guelph Ontario Canada
Est. 1984
email: gary (at) number63.ca
Barry Thompson wrote:
>
> Hi All: My 350 watt supply gave up.I repaired one before but it was
only the
> standby supply, but this has no outputs.I have a schematic but no
> voltages.would someone have voltages for these supplys or the most
likely
> componets to check. Thanks Barry.
> Barrys TV
> Ottawa,Canada
> barrystv@xxxxxxx
>
>
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