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PC Power supply model: P4 ATX-300 schematics diagram

P4 ATX-300 schematics diagram

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

tbirdfan1
  • 3051 Answers

SOURCE: Power Supply Bestec ATX-300-12EB3- Rev: s4(S) 300-watts

yes if you can get the side plates unscrewed and the backplate plate uncrewed then the sides should lift off of the power supply now if you look at the board where all of the wires are it should be on the side by the power cord they are pretty small and some of them are soldered in so be carefull ok keep me posted ook best regards mike

Posted on Aug 26, 2008

freetek
  • 5568 Answers

SOURCE: schematic diagram for ATX-250-12E

Once upon a time . . . I actually repaired PC supplies but only for some oddball PCs whose makers were too stupid to buy 'off-the-shelf' supplies from others.
There is a good possibility that replacement parts to repair one of these will cost more than a new replacement supply. You just cannot compete with people who earn a couple of dollars a day assembling them.
They aren't tough to repair if you have some technical skills but it just isn't worth it.
I'm pasting part of a post below I just did for someone else who wanted to know if the board could be damaged from a failing supply-
"Since there have been some changes in available outputs and connectors even on ATX supplies, make sure you compare pictures of the supply to your own but in any case, I would recommend using a replacment rated at 350W as this will run more conservatively and not be as stressed as the 250 you now have. It won't cost a lot more and will not consume any more power but the critical components will run cooler.
 
Not as a recommendation, just a current example on eBay:
 
http://cgi.ebay.com/Mustang-Switching-Power-Supply-350W-Model-LC-B350ATX_W0QQitemZ250294363195QQcmdZViewItem?hash=item250294363195&_trkparms=72:1156|39:1|66:2|65:12|240:1318&_trksid=p3286.c0.m14
 
 The last couple I bought were $5 each with $7 shipping charge from a US source."      

Posted on Sep 19, 2008

  • 2 Answers

SOURCE: i need datasheet for AT2005 IC

one reference indicated AT2005 is the same as WT7520. I think WT7520 datasheet has some errors, but have found no one to ask about them. I need schematic of Powork PW-600, using WT7520; and a better WT7520 datasheet.

Posted on Mar 08, 2009

rulds2008
  • 3866 Answers

SOURCE: no voltage output

Would recommend replacing this unit instead of serrviceing it yourself it will cause adverse effect and may even smoke. These units once they dye there gone. If you need a diagram I would direct you to www.apex.com.

Posted on Apr 22, 2009

  • 733 Answers

SOURCE: My power supply is blinking green light and my PC has no power

plug your pc directly to your wall outlet and see if it turns on. If it works, then the problem is your power supply. If power supply has a reset button, press it and try again. If pc does not turn on when plugged to wall outlet, then power supply for pc may be out.

Posted on Feb 16, 2010

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Look at this photo
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My power supply is blinking green light and my PC has no power


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Can an ATX-300-12E be used in place of an


I think it wont be a problem as long as both pwoer supplies are of same type e.g both supplies are for P4 sytems

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1 Answer

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Not having one though, I have replaced two capacitors (one with a bulging top) and another with a leaking top, three rectifiers (two shorted and the third had a cracked case), and have ordered transistor Q1 (also shorted). Will also need to repair trace damage on the bottom of the circuit board. Other components check out OK so I hope it will be working again after the transistor arrives Monday. I need the -5v this one supplies to get my old computer running so I can retrieve last year's tax info.

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Power supply packed i n


Yes, you can safely put in equal or higher. Just make sure it is an ATX and that it is P4 compatible. Most new ones all meet to those specs. Higher is actually better. I would go with a 400w or higher.

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3 Answers

I need datasheet for AT2005 IC


Datasheet here:

http://www.china-ate.com/PDF/IC/AT2005B.pdf

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