Question about RaidMax 350W Power Supply (NEWITEM36787964) Power Supply

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I need a diagram and list electronic components, power supply BSP-8442 Rev 1.9 Thanks Best regards

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I need a schematic diagram for a HP4540s motherboard

Interesting user icon...........

I better get this right, huh? Bahahahahahaha!

Best I can do is a Block Diagram,

Click on the diagram to enlarge.

Now what is the problem?

Need to know where to connect cables?
Need to know the Specifications to upgrade?

Problem with laptop, and you need to know what electronic components deal with that circuit?

DC - DC circuit (Charging / Power )
Motherboard chipset
Graphics chipset

Post back in a Comment.


Apr 11, 2013 | HP 15.6" ProBook 4540s B5P37UT Laptop PC...


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

1 Answer

My acer monitor just keeps turning on and off it was working fine then it just started turning on and off

Hello, Thanks for using

What you got here is a power supply issue. The power supply might be having some issues with its filler capacitors inside the power supply itself.

Many people such as myself have replaced these types of things to make it work.

You would need to know basic soldering and electronics repair skills to do this type of duty.

If that is not the type of work your into I recommend having the monitor repaired by a expert in your city.

1. Bad/bulging electrolytic filler capacitors

Thanks for your question, I do hope your satisfied with my answer,

Best regards


Jul 13, 2011 | Acer AL1916W 19" LCD Monitor

1 Answer

Won't turn on


if it does not power up, then it means its having a power problem. it might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Best regards....

Mar 07, 2011 | Office Equipment & Supplies

1 Answer

My problem is purely an electronic one because my printer cannot switch on. Can somebody help me and forward a schematic diagram to try to repar the power supply unit. Thanks and best regards Roland

If still the problem (there no diagram in my search):

The issue you describe seems to indicate that your product may require repair service. If you feel your product might require service, a Technical Support Representative will be happy to answer any questions you may have and explain the service options available to you. You can contact us through the email link or phone numbers listed below.
  • Obtain Support by Email

  • For toll-free technical support, please call 1 (800) OK-CANON (1-800-652-2666) during regular business hours (currently Monday-Friday 10:00 a.m. - 10:00 p.m. ET, excluding holidays).

  • Toll-free TDD Support Line for the Hearing Impaired is available Monday - Saturday (excluding holidays) at 1-866-251-3752

  • Technical Support is available for Customers in Canada at 1-800-OK-CANON
The InstantExchange Warranty Program is available:
(1) only for certain printer, facsimile, multifunction, and scanner models;
(2) during the express limited warranty period for such products; and
(3) only in the continental United States, Alaska and Hawaii.
So we may better assist you, please make sure that you can access your Canon product and have the following information available when you call:
  • Product model name and serial number.
  • Computer's operating system; for example Windows XP.
  • Message displayed when the problem occurred.
  • Steps you've already done to try to solve the problem.

Dec 22, 2010 | Canon PIXMA iP4300 InkJet Photo Printer

2 Answers

External power problem

It's actually the opposite. 1/8" jacks are almost always positive tip. I think you are best off using a 9VDC supply. If the voltage is not staying constant at 9 volts it could certainly do damage. If the supply you used was a negative tip positive sleeve you may have burned out a component or two...and more voltage than recommended could have done some other bad things. If it does not work with a 9VDC supply with the correct polarity you can fix it yourself if you have electronic experience. You could also send it to me and I'll fix it at a reasonable rate.

Aug 26, 2009 | Ibanez Ts808 Vintage Tube Screamer Reissue

1 Answer

Polyspan soundstation power supply schematic diagram

My Polycom sound station power unit malfunction. I found that AC transformer broke. If I try to get substitute transformer, what is the required ac output (Vac) and Amp that I need to find?

Nov 23, 2008 | Polycom SoundStation

3 Answers



Initially, pls check D854 on the Power Supply/Logic board. It is a dual diode. If you would prefer board replacement rather than component level repair, this might be of help. This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

This is of course in addition to checking the usual, power cord, fuse, outlet etc.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

Nov 05, 2008 | Dell E173FPf 17" TFT LCD Flat Panel...

1 Answer

Power Supply Bestec ATX-300-12EB3- Rev: s4(S) 300-watts

yes if you can get the side plates unscrewed and the backplate plate uncrewed then the sides should lift off of the power supply now if you look at the board where all of the wires are it should be on the side by the power cord they are pretty small and some of them are soldered in so be carefull ok keep me posted ook best regards mike

Aug 23, 2008 | E-Machines Bestec ATX-300-12E Rev. D 300w...

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