TIP: Click on subject to list as thread! ANSI
echo: electronics
to: all
from: Roy J. Tellason
date: 2003-10-25 04:06:10
subject: power supply

Got a dead ATX power supply here...

I just got this case,  cheap.  Got the MB off my brother.  I had MB and
floppy drive and HD power plugged into it,  but it supposedly being a 250W
supply,  I don't think you could call this thing seriously loaded down or
anything.

While testing,  trying to set some stuff up,  I was flipping the switch of
the PS itself on and off.  Not a thing comes up now.  Not even a twitch of
the fan.  Opened it up (somebody'd been in there before me,  that
"seal" was broken" and checked out what I could,  nothing
obvious.

This unit has little board with what almost appears to be a separate small
PS screwed to the tops of the heatsinks?!

Anyhow,  fuse is good.  Thermistor is good (about 8 ohms cold),  bridge
rectifier is good,  caps are good as far as I can tell,  main switchmode
transistors are neither shorted or open,  and I have *no* idea about the
rest of it.

Repair FAQ says "startup"...

Beats the heck out of me what parts I might be wanting to look at next,  to
the extent that I can with my eyes in the shape they're in these days.

I'm not waiting on this to get going with that machine,  but,  anybody have
other suggestions to offer on this?  Besides tossing it?  :-)

--- 
* Origin: TANSTAAFL BBS 717-838-8539 (1:270/615)
SEEN-BY: 633/267 270
@PATH: 270/615 150/220 379/1 396/45 106/2000 633/267

SOURCE: echomail via fidonet.ozzmosis.com

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.