Delta dps-300sb doesn,t start no output no led

darcy · 02-09-2019, 02:22 PM

just thought I would leave this tip for anyone with the above psu.
in my case this psu would run perfectly one day and not start the next but leave it for a few hours and it would start again.
when it wasn't working the green l.e.d. on the back of the psu remained out the fan did not turn and there was no power output.
everything inside the psu looked clean, no blown caps etc.

turned out to be C914 was under capacitance when removed and tested... replacing it fixed the psu

found more info on this website
https://itbbs.pconline.com.cn/diy/12863186.html

Darcy

**Per Hansson** · 02-09-2019, 02:46 PM

That's CapXon for ya

**PeteS in CA** · 02-11-2019, 01:36 PM

In the 5VSB circuit? Or in the PWM circuit?

02-09-2019, 02:22 PM	#1
darcy New Member Join Date: Jul 2016 City & State: ayr My Country: scotland I'm a: Knowledge Seeker Posts: 4	Delta dps-300sb doesn,t start no output no led just thought I would leave this tip for anyone with the above psu. in my case this psu would run perfectly one day and not start the next but leave it for a few hours and it would start again. when it wasn't working the green l.e.d. on the back of the psu remained out the fan did not turn and there was no power output. everything inside the psu looked clean, no blown caps etc. turned out to be C914 was under capacitance when removed and tested... replacing it fixed the psu found more info on this website https://itbbs.pconline.com.cn/diy/12863186.html Darcy

02-09-2019, 02:46 PM	#2
Per Hansson Super Moderator Join Date: Jul 2005 City & State: ---- My Country: Sweden Line Voltage: 230v 50Hz I'm a: Knowledge Seeker Posts: 4,196	Re: Delta dps-300sb doesn,t start no output no led That's CapXon for ya __________________ "The one who says it cannot be done should never interrupt the one who is doing it."

02-11-2019, 01:36 PM	#3
PeteS in CA Badcaps Veteran Join Date: Aug 2005 City & State: San Jose, CA My Country: USA, Unsure of Planet Line Voltage: 120VAC, 60Hz & 115VAC, 400Hz I'm a: Professional Tech Posts: 2,781	Re: Delta dps-300sb doesn,t start no output no led In the 5VSB circuit? Or in the PWM circuit? __________________ PeteS in CA Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells. Where might is right There is no right. - Sophocles in "Antigone" ************************** All that is gold does not glitter, Not all those who wander are lost; - J.R.R. Tolkien, The Fellowship of the Ring ************************** To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.

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