Question about OEM Systems ATX P4 350 Watts Power Supply ( Channel Well OEM ) (PS350) Power Supply

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I need datasheet for AT2005 IC

I try to repair the power supply atx p4 350 watts all component around Q ksc5027 is good , transistor c945 is good .
i need schematics diagram for power supply p4 350ATX
i need datasheet IC AT2005
i need troubleshooting to help me to repair the power supply
please help me
thank youuuuu

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L? Vinh

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Datasheet here:

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

Posted on Sep 07, 2009

  • L? Vinh
    L? Vinh Jul 08, 2010

    WT7520 datasheet here:

    http://www.dianyuan.com/bbs/u/28/1112672...


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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

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I need datasheet for WT7520 IC

Posted on Mar 17, 2011

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How. Can I obtain a circuit diagram for a win power atx450l please.


th?id=hn.608022427297449792&w=121&h=105&c=7&rs=1&qlt=90&pid=3.1&rm=2 Got here and use this datasheetarchive.com/ATX+power+supply+450+watt+circuit+diagram-datasheet.html

Feb 02, 2015 | Computers & Internet

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Repairing the ATX power supply unit


<br />if you have some knowledge about electronic component, about multimeter; you can easily learn to repair the ATX PSU. here you find a simple presentation that allow you to understand the role main components with a photos.<br /><b><u>Presentation 1:</u></b><br /><br /><img src="mabroukmedal_5.JPG" /><br /><b><u>Presentation 2:</u></b><br /><b></b> <br /><br /><img src="mabroukmedal_6.JPG" /><br /><b><u>presentation 3:</u></b><br /><b></b> <br /><br /><img src="mabroukmedal_7.JPG" /><br /><b><u>here you find the schematic diagram:</u></b><br /><b></b> <br /><br /><br /><img src="mabroukmedal.GIF" /><br />the component side :<br /><br /><img src="mabroukmedal_0.GIF" /><br /><br /><img src="mabroukmedal_8.JPG" /><br /><b><u>the solder side:</u></b><br /><br /><img src="mabroukmedal_1.GIF" /><br /><b><u>Step 1:</u></b><br /><br /><img src="mabroukmedal_9.JPG" /><br /><br /><b><u>Step 2:</u></b><br /><br /><img src="mabroukmedal_11.JPG" /><br /><b><u>Step 3:</u></b><br /><b></b> <br /><b></b> <br /><br /><img src="mabroukmedal_12.JPG" />

on Nov 05, 2010 | Computers & Internet

3 Answers

Schematic atx diagram


I give up! Why would you need a schematic for a computer power supply? I've been in the computer business for over 30 years and have never needed a power supply schematic. Just curious!

Sep 18, 2013 | Antec BP350 350-Watt Power Supply

1 Answer

SCHEMATIC DIAGRAM FOR ATX250-3505


While this link will show you a schematic for a 200 Watt ATX, the one you seek should be similar.

http://www.pavouk.comp.cz/hw/en_atxps.html

Dec 29, 2011 | Astec 250W Power Supply w / External Fan...

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I need Power Supply unit ATX-300-12Z CDR for my H Pavilion desktop. P/S HP P/N 51882625


You dont have to replace it with the exact one...just shop around and find a 300 watt ATX power supply. You can find a few good deals around the internet. (tigerdirect.com...newegg.com....etc)

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1 Answer

5VSB IS MISSINIG FROM MOTHERBOARD CONECTOR . COMPUTER WILL NOT BOOT WHEN POWER SWITCH ON FRONT PANEL IDEPRESSED . NEED A SCHEMATIC AND COMPONENT DIAGRAM FOR THIS UNIT .


specs are here
http://www.antec.com/specs/SP500_spe.html
This includes 5VSB
There is more info here
http://www.newegg.com/Product/Product.aspx?Item=N82E16817103937
the ATX spec and 20+4 connector pinout (wich locates 5VSB got you) can be found in the Wikipedia article (section 3 in http://en.wikipedia.org/wiki/ATX#ATX_power_supply_revisions has pin out details for ATX rev 2.1).
If your psu is missing 5VSB it is defective and should be returned to manufacturer or retailer if within warranty period. See testing psu articles also.

Jan 19, 2011 | Antec SmartPower SP-500 (ASKU37152)...

1 Answer

SCHEMATIK DIAGRAM FOR POWER SUPPLI


I would also have liked to have had a schematic diagram for my ECHOSTAR 450w ATX power supply.

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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3 Answers

Schematic diagram for ATX-250-12E


I repair power supplies and various electroics, most cases it will be compacitors, or diodes which have caused it to fail!!

Jul 29, 2008 | Bestec (ATX-250-12E) 250-Watt Power Supply

1 Answer

Busted component


Getting a schematic is rather doubtful. You might be able to get a general idea of the circuit from somewhere on the 'net.

Was the power supply dead?

ATX style power supplies have both a standby and main section. The standby supplies a low current +5 volts to a small portion of the motherboard.

If the component failure is in this section, this standby voltage will be missing or incorrect, and the computer will be dead- won't power on at all.

I've seen a number of catastrophic failures in this standby circuit, and repair isn't suggested or economically feasible, especially as some parts often poof beyond identification.

When the pwr button is pushed, the main section comes on, and supplies +5 (Red wires), +12 (Yellow wires), +3.3 (Orange wires), -5, -12. Look here for this info http://pinouts.ru/Power/atx_v2_pinout.shtml

Voltages are precisely regulated, and any substantial deviation (more than a few 10ths of a volt) indicate a problem, especially on the +5 & +3.3 lines.

Jul 07, 2008 | Okia / 450-Watt / ATX / 80mm Fan /...

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