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Author Topic: Generic ATX Power Supply  (Read 2890 times)

Offline tony

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Re: Generic ATX Power Supply
« Reply #20 on: September 14, 2011, 05:39:24 PM »
Quote from: Johannah Aleksandria on September 14, 2011, 09:58:04 AM
Palagay ko sira
Magkaiba ba ang ckt ng standby sa main sir? o pareho lang sila ng start-up resistor?
I'm talking about the resistor in the range of 1Meg.

we are talking atx psu's, tv's and monitors uses start-up resistor which is not involved here....
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Re: Generic ATX Power Supply
« Reply #20 on: September 14, 2011, 05:39:24 PM »

Offline tony

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Re: Generic ATX Power Supply
« Reply #21 on: September 14, 2011, 05:50:18 PM »
these are rects you should check:



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Re: Generic ATX Power Supply
« Reply #21 on: September 14, 2011, 05:50:18 PM »

Offline BhongTech

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Re: Generic ATX Power Supply
« Reply #22 on: September 14, 2011, 06:37:08 PM »
mapapansin mo pati yung plastic spacer ng turnilyo ng mga rectifier minsan lusaw ng konti at nangingitim ang metal tab ng rectifier.
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Re: Generic ATX Power Supply
« Reply #22 on: September 14, 2011, 06:37:08 PM »

Offline BhongTech

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Re: Generic ATX Power Supply
« Reply #23 on: September 14, 2011, 07:16:31 PM »
Quote from: Bhong Conde on September 14, 2011, 06:37:08 PM
mapapansin mo pati yung plastic spacer ng turnilyo ng mga rectifier minsan lusaw ng konti at nangingitim ang metal tab ng rectifier.
pag-shorted na.
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Re: Generic ATX Power Supply
« Reply #23 on: September 14, 2011, 07:16:31 PM »

Offline ars

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Re: Generic ATX Power Supply
« Reply #24 on: September 15, 2011, 09:39:55 AM »
master tony...ito po ung nasa output area na nka top sa heatsink, tama po ba? ung sa primary ay hv switch din to dba? 
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Re: Generic ATX Power Supply
« Reply #24 on: September 15, 2011, 09:39:55 AM »

Offline pabzjose

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Re: Generic ATX Power Supply
« Reply #25 on: September 15, 2011, 09:53:33 AM »
pwede po ba gamitin yung 4 pin ng ATX as an adpater ng smartbro wifi router?
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Offline tony

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Re: Generic ATX Power Supply
« Reply #26 on: September 15, 2011, 03:45:23 PM »
Quote from: ars on September 15, 2011, 09:39:55 AM
master tony...ito po ung nasa output area na nka top sa heatsink, tama po ba? ung sa primary ay hv switch din to dba?  

yup yung lower heatsink sa  picture, you have to take it out of board to test, you may also test the small diodes for the negative 12 and 5 rails if installed....
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Offline tony

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Re: Generic ATX Power Supply
« Reply #27 on: September 15, 2011, 04:01:06 PM »
Quote from: Bhong Conde on September 14, 2011, 06:37:08 PM
mapapansin mo pati yung plastic spacer ng turnilyo ng mga rectifier minsan lusaw ng konti at nangingitim ang metal tab ng rectifier.

meron ding cases na walang signs of burning pero shorted pa rin, best to take the heatsink off board and test individual rectifiers.....kasi in circuit you might think that it is shorted, hindi naman pala..
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Offline ars

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Re: Generic ATX Power Supply
« Reply #28 on: September 16, 2011, 10:36:58 AM »
ok tnx sa idea
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Offline profpat

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Re: Generic ATX Power Supply
« Reply #29 on: October 10, 2011, 09:48:23 AM »
madalas ntc resistor ang culprit - tama si sis tony, sometimes nag change value yung over voltage/current resistor shunt, also check very well all switching diodes, a little leak will make the circuit go on protection mode..if this unit is equiped with 393 i.c. palitan mo na rin..
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Offline /

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Re: Generic ATX Power Supply
« Reply #30 on: October 17, 2011, 05:34:18 PM »
master anung piyesa yong SCK 055 ang label. may crack na kasi eh, yong kaya ang cause kaya pumuputok ang fuse?
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Offline unitech

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Re: Generic ATX Power Supply
« Reply #31 on: October 17, 2011, 06:30:51 PM »
pa sub....
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Offline ditchie

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Re: Generic ATX Power Supply
« Reply #32 on: October 17, 2011, 06:49:22 PM »
Quote from: Hunter on October 17, 2011, 05:34:18 PM
master anung piyesa yong SCK 055 ang label. may crack na kasi eh, yong kaya ang cause kaya pumuputok ang fuse?
nakaparallel ba yan sa AC sis?
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Offline /

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Re: Generic ATX Power Supply
« Reply #33 on: October 17, 2011, 07:01:27 PM »
uu sis malapit sa fuse
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Offline Mayalin22

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Re: Generic ATX Power Supply
« Reply #34 on: October 17, 2011, 07:05:45 PM »
varistor cguro yan sis.. alisin mo pansamantala then check kung puputok pa fuse
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Offline ditchie

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Re: Generic ATX Power Supply
« Reply #35 on: October 17, 2011, 07:07:44 PM »
ah forgot the name of that part. ginagamit yan to protect the unit. once tumaas voltage mag turn.on yan causing short circuit at puputok yung fuse. meron siyang certain voltage rating kung saan magconduct. kadalasan ko yan nakita sa samsung boards at mga unit na palagi nakastandby. pwede naman tanggalin muna pero make sure stable supply mo.
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“A man is but the product of his thoughts. What he thinks, he becomes."
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Offline ditchie

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Re: Generic ATX Power Supply
« Reply #36 on: October 17, 2011, 07:09:47 PM »
yun na sis. varistor. metal oxide varistor MOV.

thanks kuya google.
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“A man is but the product of his thoughts. What he thinks, he becomes."
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Re: Generic ATX Power Supply
« Reply #37 on: October 17, 2011, 07:10:43 PM »
^uu nga sis kasi naisaksak sa 220 na naka 110 ang selector.
Quote from: Co0LëT♥ on October 17, 2011, 07:05:45 PM
varistor cguro yan sis.. alisin mo pansamantala then check kung puputok pa fuse
ahhh sige sis maya pag balik ko sa opis pag tripan ko ulit. basag na kasi eh.

+1 kau sis
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Offline Mayalin22

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Re: Generic ATX Power Supply
« Reply #38 on: October 17, 2011, 07:12:05 PM »
gamit ka ng gasmask  ;D ;D ;D ;D
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Re: Generic ATX Power Supply
« Reply #39 on: October 17, 2011, 07:13:54 PM »
bakit sis ecap na ang sasabog? :D :D :D
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Re: Generic ATX Power Supply
« Reply #39 on: October 17, 2011, 07:13:54 PM »
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