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Power breakdown my laptop keeps going off as if their is a break in power supply

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CCTV power supply keeps decreasing the voltage

Your power supply appears to have a capacitor that is breaking down located within the diode bridge. You will need to replace the power supply or get it repaired.

Jul 16, 2012 | Optics

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Hp pavillion dv4 charging indicator is blinking even if charger is plugged in. and when turned on, suddenly shut downs just a few seconds from turning it on. any solutions to this problem? i'm really...

From the Why your HP Pavilion dv4 Battery light flashing?this migth fix your HP battery Pavilion dv4 problem;
  • Go to your power settings by right clicking on the desktop and select Properties> click the Screen Saver tab> click Power.
  • Under Power schemes select select all of the choices to never.
  • Plug the power supply into the laptop and wait till it reaches 100% and stop charging..
  • Disconnect the power supply and let the laptop discharge completly untill it heibernates.
  • Reconect the power supply and let the laptop charge complely again, then go back into the HP dv4 Battery power settings and resume the previous settings.

...but in your case - that sounds to me like the battery is defective...

Jun 13, 2011 | Computers & Internet

1 Answer

Keeps going off every 15 minutes then showing no signal

Please check if the fan filter is clogged or the lamp heat is too much. If so the lamp can shut off, so use a good cooling fan to see if the shut down stops, if not the projector power or the lamp circuit must be checked for a loose connection., or possible power supply load breakdown.

Sep 29, 2010 | Office Equipment & Supplies

1 Answer

Last week, I spilled the coffee. I get zero power after a week of drying out. I've used the power supply, and the battery, and no power at all. I have read that cleaning the motherboard may help, but I...

If you aren't knowledgeable in disassembling a laptop, then I would encourage you to take it or send it to a computer shop. I usually charge $110 - $130 to do this type of repair\servicing. I've had lots of customers who've done the same thing you did, and then try to take apart their laptop to clean\repair it. They almost always end up breaking something; which ends up costing them more for me to buy the part, fix it, and re-assemble the entire thing. If you decide to do this on your own, then be sure that you have something that you can keep all of the little screws in and have them labeled so that you know where they go when you put the computer back together. More than likely your laptop is going to need an new motherboard put in it. You can expect that to run you at least $250. -madhatter639

Aug 22, 2010 | MSI A6200038US Notebook

2 Answers

I have replaced the mobo in my dv6000 and still have the same issue. power sometimes comes on for a second or two. Power supply is generic but output is pretty close to spec...within .25 vdc. Should I...

It is highly unlikely that the it is your mobo since you saw the same problem. I would try to find another power supply before doing anything about the processor. Some times DC power supplies are defective either because can't handle the load(amperage pulls it down) or there is a breakdown where it lets through some of the AC component. You would need a oscilloscope to see the AC component. Just try to swap it out with another that has the same specs.
If it still gives you problems, the only thing left is the processor.

Dec 25, 2009 | HP Computers & Internet

1 Answer

Computer keeps cycling off then on when I power upwhat can I do?

the diodes that are transforming AC to DC from the secundary winding are fryed... replace them with new ones. the mainproblem is that you must break all the seals of the power supply to do this, so it is wiser to go to a repair center for this if you don't have experience with fixing electronics. Alternatively you can use a Unintreruptible Power Supply ( UPS ) to regulate the current fed in the power supply as power spikes are the main cause of this kind of malfunctions.

Jun 14, 2009 | Bestec (ATX-250-12E) 250-Watt Power Supply

1 Answer

My r3000 has a tempermental power supply. it

whatabout the lead that plugs into the laptop ? does the plug in the laptop move easily, with the lead in, Sounds like the actual plug in the laptop is breaking away, the solder around the connector. Sadly to fix that you will have to get it repaired for about £50 to £70, maybe more ?? please make sure the lead from power supply is not loose or a bad fitting.

Jun 14, 2009 | Compaq Presario R3000 Notebook

1 Answer

I am having dificultys getting my emachines m5310 laptop apart

Haven;t found a manual for you, but this link should give you a good start towards where you're going.

Hope this helps and have a super day!

Jan 03, 2009 | Computers & Internet

1 Answer

Tv is not working

the symptom is usually caused by a breakdown in the power supply circuit. in most modern receivers (transistorized and/or ic), it may also be caused by a breakdown in the horizontal deflection circuits (hor. oscillator, pre-drive, or drive circuits). supply voltages for the tuner, vif,sif, and vertical output are usually supplied by the horizontal output circuit. but if you doesnt know anything about these stuffs, better bring it to a qualified service tecnhician

Jan 08, 2007 | RCA 27F650T 27" TV

2 Answers

RCA 20f510td

Sounds like a thermal breakdown of a componet. it could be in the main power supply regulaor supply or even a bad capacitor in the power or sweep supply. In some cases Zener diodes can break down and change values after warm up. In some cases also bad solder connections in the highvoltage section, or the power supply can cause this problem. It is a hard call without being able to look at the set. Just a few leads on where to go first. most likly a combo unit, such as this one , would cost you more then a new one these days. Good Luck PS Please dont forget to rate this thread.

Dec 09, 2006 | RCA 20F510TD 20 in. TV/DVD Combo

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