In a smps power suply secondery voltage is not steady when disconectin power it comes steady

1 Answer

sherlywang

Electrical S... Master 428 Answers
Posted on Nov 30, 2019

sherlywang

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Joined: Oct 20, 2017

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Starlight diesel generator set faults support article: www.dieselgeneratortech.com, hope it is helpful to you.

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pravin bhavsar

348 Answers
Posted on Nov 21, 2008

SOURCE: PC smps power supply problem

ok you open the pcb check the fuse first then replace it if faulty if it burns again then check 4 diodes then see if 200v big capacitor is expanded or not if so then replace it if not then check diodes after transformer if short then replace it

Anonymous

700 Answers
Posted on Oct 28, 2009

SOURCE: Akai 25

try to check its high voltage section for axed HOT or flyback. Also check its regulator. Maybe start up resistor or check the chopper circuit. You should at least have an standby voltage on the secondary side.

Anonymous

4 Answers
Posted on Dec 17, 2009

SOURCE: my IBM 15

Manufacturer site under support
have make model info ready

Bud Martin

11361 Answers
Posted on Jun 22, 2010

SOURCE: All voltages are present on power suply board.

Please see my basic troubleshooting guide:
http://s807.photobucket.com/home/budm/allalbums

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://en.wikipedia.org/wiki/Capacitor_plague
Parts: try www.shopjimmy.com or Ebay

Anonymous

1 Answer
Posted on Jun 17, 2011

SOURCE: i need meter voltage from

in this device the 48 volt(dc) is used for phantom power . and the o/p volt is from the red cable are 36volt,56volt 56volt and 75volt all in dc. take red as ref.

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First remove smps power suply unit box from cpu.
Then ground pin and check is it on you have to ground 4-5 pin blck and green.
Then if it is on then smps is ok.then pull cmos cell from motherbord for 10 minutes make sure cmos cell give voltage.Remove pci cards from pci slot is any.
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Pull cmos cell from motherbord for 10 minutes refix RAM memory .
reconnect all conection to motherbord.
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Some times your smps means your cpu power suply unit has issue.
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In a smps power suply secondery voltage is not steady when disconectin power it comes steady

1 Answer

sherlywang

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pravin bhavsar

Anonymous

Anonymous

Bud Martin

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The power went out and when it came back on the on timer light keeps flashing and I can't turn the tv back on.

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Power suply not output

Do not start

My t1500 XR keeps clicking on and off when i connect it to the power suply. why is that and how do i solve it?

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TV IS DEAD. NO POWER AT ALL. HAD A SERVICE TECH LOOK AT IT. HE SAID THE PCB HAD TO BE REPLACED. IS THIS A COMMON PROBLEM? IF SO , WHY?

Sharp 14

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Samsung 29 inch hdtv

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In a smps power suply secondery voltage is not steady when disconectin power it comes steady

1 Answer

sherlywang

5 Related Answers

pravin bhavsar

Anonymous

Anonymous

Bud Martin

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Add Your Answer

Attachments: Added items

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Samsung 29 inch hdtv

The power went out and when it came back on the on timer light keeps flashing and I can't turn the tv back on.

I need meter voltage from power suply. what voltage a suply.

Power suply not output

Do not start

My t1500 XR keeps clicking on and off when i connect it to the power suply. why is that and how do i solve it?

Have a ATA-100 motherboard, when turning it on it turns itself off within 3 seconds... do not have a manual with this.

TV IS DEAD. NO POWER AT ALL. HAD A SERVICE TECH LOOK AT IT. HE SAID THE PCB HAD TO BE REPLACED. IS THIS A COMMON PROBLEM? IF SO , WHY?

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