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Power Supplies

Forum discussion tagged with Power Supplies.
  1. C

    What is causing white background noise on my microphone?

    Hi everyone! I recently bought the Neewer NW-700, along with the NW-100 48V Phantom power supply. I am getting white background noise and I'm wondering what's causing it. I have connected the Microphone to the Power Supply with an XLR-XLR cable I have connected the Power supply to a FIIO USB...
  2. T

    Solved! Is it possible to use a 12V3A (36W) power supply for a 20x2W stereo amplifier without any problems?

    Hello, I have 2 of the mentioned power supply, and I have an amp thats rated for 12V 2x20W, and an other one which is rated for 12V 2x50W. Is it bad for the amps to use them with a power supply like this, or I should buy a bigger one? (I know it's gonna be "less effective", but that's not the...
  3. K

    HI grade model W651UI Laptop

    Can anyone guide me where I could purchase a new power Supply and laptop battery from as Hi Grade computers have gone out of business. Thanks for all your help it is so much appreciated
  4. B

    Solved! Help To know the watts of this power supply

    Please, I need To know how many watts in my power supply.. https://www.photobox.co.uk/my/photo/full?photo_id=501626165229
  5. I

    Solved! External Graphics Card not working

    I have a Dell Optiplex Usff 9020 and a Zotac 650 1gb destroyer tsi with a power supply for the card and a beast egpu adapter. Its all plugged in but my PC isn't detecting the card please help. -Jamo p.s My graphics card fans are spinning.
  6. L

    Solved! Power Supply Adapter

    can i use a ActionTec power supply input 100-120 60hz 0.3A when the tablet says power source DC 5V 3A straight line on top and 3 dashes on bottom.
  7. V

    Can the power supply board burn/damage the main board? (Samsung TV)

    I have a Samsung TV UA40F5000AR that doesn't turn on but has the red light on. When I checked the internet, the problem seems to be either in the main board or the power supply board. The technician came and thought the problem was in the main board, so he replaced it with a new one. The TV...
  8. B

    Monitor only shows black screen

    Hello everyone. Sorry if this has already been solved I didn't see any threads that fixed my problem. I recently purchased an Acer ED242QR and when I turn my computer on I see exclusively a black screen. No logo and no windows. The menus don't show up either. I have tested my second monitor and...
  9. W

    Solved! Where would I find a power supply for example projector rpj129

    I have an RCA rpj129 projector and the power supply went bad on me where would I find a new one I can order
  10. P

    Solved! Laptop screen goes black after power supply plugged in

    My toshiba M840 screen instantly goes black if power supply plugged in and would never turn on back. I've tried many method but none of that work , the screen goes black even in the save mode and I think it either the power supply problem or my motherboard. I hope I can find my solution here...
  11. packersfan036

    laptop power supply question

    I have a Lenovo legion y520 gaming laptop. a oem charger cost is around 70 dollars, I can get a aftermarket for 16 dollars. big difference. my question Is, is it safe to use a aftermarket charger? all the specs match as well.
  12. J

    Solved! Safe to use lower wattage power supply on laptop?

    Ok so I bought a used laptop before finding out the power supply doesn't have enough wattage that the laptop needs (uni PSU) but the voltage is correct. I noticed obvious throttling when playing games and the backlit keyboard would flicker, I assumed it's because the system isn't getting enough...
  13. D

    Solved! Sony HT-RT3 Power failure

    Hi, Suddenly my Home Theater stopped working. I am experiencing power supply failure to it. What is the best approach to resolve the issue. Thanks Santosh
  14. B

    Computer keeps shutting off

    About 3 months ago my pc would work fine but recently it shuts off then comes back on or just stays off. after it shuts off I have to turn the power supply off and back on again before it will turn on again. Any help?
  15. C

    Selecting the right power supply for a tower speaker(Philips)

    Hello! I got a tower speaker form my uncle and not very fimilar with audio systems, I don't know how to revive this 3 feet tower speaker.. I'll just attach the photo of the speaker.. Please help me to bring back it to live
  16. S

    effect on laptop battery

    my laptop has a Polymer/Prismatic Battery, do I have to unplug the power supply cord once the battery is fully charged. if I don't do so does the power supply affect the battery life?
  17. J

    AT2020 XLR lots of static (repost) desperate for help.

    Hey I just got this mic today and hooked it up to a Behringer PS400 Phantom Power Supply i plugged everything in correctly and the hiss is still there. It's really loud. heres a clip of me speaking. https://www.mediafire.com/file/lf899jrc1d1dma4/Recording_%2828%29.m4a/file please help? thanks
  18. M

    Solved! home theater system

    How to connect subwoofer with speaker wire input to receiver with RCA output? ( subwoofer doesn't have power supply)
  19. P

    Solved! Whats the name of this power cord for the speaker?

    https://ibb.co/gUd6xy whats the name of this power cord. Thanks for help.
  20. N

    Solved! Loud Humming coming from Sub

    So i have a car sub hooked up in my house. I know everything works fine as i tested it all with a car battery and it sounds incredible. But i dont want to keep a car battery in my house so I bought a computer power supply that out puts 30 amps @ 12v (that is what my subwoofer amp is rated...