Question about Dell (9228C) 200-Watt Power Supply

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My power suplly is totally off and i need the

My power supply is totally off and i need the schematic to repair it.

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Jst buy a new one at

Posted on Feb 21, 2009

  • kevin bennett Feb 21, 2009

    just buy a new one at



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1 Answer

Power suplly is ok but do not ppower on totally no power

Hi bartrubis_20,

You mentioned the power supply is ok but still the system does not power at all.

check all the power cables conencted to the motherboard if they are all conencted properly, the p4 and the 20 or 24 pin power connector chould be connected proeprly to power your machine.

If still the system does not power on at all, check jumper settings if it is in the proper jumper sequnce if in the incorrect sequence the motherboard will really not respond at all.

If I may ask what happend before the system stopped from turning ON? nd is there light when you power the system? is the fan spinning or not?


Jun 03, 2011 | Computers & Internet

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SC551 error on Infotec IS2220D same as aficio 2020D

it must be a small damage in capacitors in power supply

Mar 25, 2008 | Ricoh Aficio 2020D Copier

1 Answer


If you're sure that your power supply is okay and the switch is okay, but the computer won't switch on, the problem is most likely somewhere on the motherboard. What happens when you turn the computer on? Do any lights come on? Do the fans come on? Is there anything displayed on the monitor?

If you have access to another computer, try installing your power supply in that computer to make sure the problem does not lie with the power supply itself.

May 18, 2010 | Dell OptiPlex GX520 PC Desktop

1 Answer

My Power Suplly makes a high pitch noise and the

The problem lies in the reduction of operational frequency. It is mainly caused during the loose of ferrite cores or failure of HV diodes across the primary coil.
1) Check the looseness of ferritte cores parts loose or fixed properly ?
2) If OK Just check the components parallel to the high voltage side of the big transformer.
3) Check low voltage schottky rectifier diodes. One must be shorted. Just remove and here the sound. If it disappears, it must be faulty. During this test, the output voltages may increase to three times also. So, to safeguard, disconnect the filter capacitors.
Solution :
1) If any of the core becomes loose, just join it properly with epoxy or glue.
2 & 3) If any device fault occurs, just replace it in case of schottky rectifier diodes better replace with higher capacity. Capacity with numbers are given below :
1N5822 => 3 A
F12C20=> 6A per channel total 12A
MBR 20150 => 10A per channel.
MBR 3035WT => 15A per channel

Jan 28, 2010 | Dell - NPS-200PB-73M (NPS200PB73M) Power...

2 Answers

No picture

Polariod TV's are far the most worse in the market right now for qaulity. But the issue is a faulty capacitor on the power suplly logic board. The fix Replace all capacitors that are followed by the one that is bad. If you do not know about eletronics repair this would cost you $150 $200 for the repair depending on the issue as a whole.

Please give me those 4 thumbs up for your totally free answer and unwavering FREE email support today.

Nov 24, 2009 | Polaroid TDA-03211C 32 in. LCD HDTV

3 Answers

I need datasheet for AT2005 IC

Datasheet here:

Jan 30, 2009 | OEM Systems ATX P4 350 Watts Power Supply...

1 Answer

No power after plugging in the external power adapter

I believe sometime when you insert the AC Adaptor while the power switch still on in CAM mode or VTR mode the sparking cause the micro fuse protection blew up it require a qualifier and trained from Sony to repair it
I had this service manual how do I post to you it big about 15MB
I sugges to bring it to Sony for repair it sometime they can not repair at component level they replace a complet PCB and it need the computer to setup and adjust and highly cost
I hope that give you some ideas

Jun 28, 2008 | Sony Handycam DCR-TRV510 Digital Camcorder

1 Answer

Screen goes to black..still has sound

Hello fredva,

More then likely it is the video board. Let me explain why. If the entire power supply was bad you would have what is called a "dead set" meaning no picture and no sound. Now in the likelihood that just the section of the power supply that supplied power to the video board was bad, now that might be the case, however unlikely as it is. Now the best way to see if this is the case would be to measure the DC voltages of the power supply to determine if that is the case. For this task you will need a voltage meter and a schematic of the TV. If you have a background in electronics this would be a snap, if you do not have a background in electronics, I would suggest that you take the Tv to a qualified TV repair shop so that the repairs can be done.

If it is just the video board you will need to follow the replacement instructions exactly as the schematic will show you.
You can usually order the board from the manufacture or one of their customer support shops. Go to the manufacture's web site and look under customer support or repairs.

I hope this helps,

Thank you,


May 08, 2008 | Akai LCT3201AD 32 in. LCD Television

1 Answer

Power supply repair HP Pavilion s 7210 n Slimline

need fans on main cpu maby died replace with ball bearing blow all the dust out of it with big vac on blow ok and go nuts blowing dust out add hiend nice quilty fans mascool on newegg 10 pack 12 bucks free ship cheap nice need air flow getting to hot and power suplly cant keep up get nice dual rail one ok

Jan 10, 2008 | Computers & Internet

1 Answer

Dell power Supply has won't work

Hi, all power supply's have a fuse in them, remove the power supply, open it up and study the printed circut board, you will see either a white ceramic or glass fuse attached to it. Replace this and reasemble it then re-install it into your computer and then test it. If you still have no power then you will have to replace the unit as the costs of repair are far greater than a new one. Goodluck, mistyman

Aug 30, 2007 | Dell POWER SUPPLY PS-5201-5D (PS52015D)...

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