No power, no cooling, no light

Make sure the cord has voltage at the other end. Measure it with a voltmeter. There may be a fuse out or the cord could be bad too.

Sounds like electric motor has gone bad. If you can get past the switch and put a tester on and see if there is any power there that would tell whether your switch has gone bad. I had a new electric motor go bad after ten minutes use. I ended up replacing it.

What is the pattern of the flashing lights?

Since You have replaced the Power Cord, Battery and DC Power Jack, I think your problem is either the Memory or the Video Card. I do recall that the DV6000 series of hp laptops had the Nvidia Graphics (Video) Card that was a manufacturing defect and documenting all over the internet. If you get nothing to post on the lcd screen then you probably have the bad video card that needs to be reflowed.

Take a look at HP's site for a explanation of the blink codes by the link below.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443366&tmp_track_link=ot_recdoc/c01443317/en_us/c01443366/loc:2&cc=us&dlc=en&jumpid=re_r163_eolproducts_psg_mar2011_dv6500_support_button&lc=en&product=3380544

When you plug in the power cord is there any lights whatsoever on the laptop, where the plug goes in or on the AC Adapter of the power cord?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the laptop is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoever when you press the power button. And if that's true maybe you was operating off the battery the last time you had it on and since the power cord is bad, it was not charging the battery so the battery is drained and the power cord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove the Battery, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in (leave the battery out) and hit the power button to see if it boots. If it does, you can put the battery back in and let it charge.

Maybe your DC Power Jack which is where the power cord plugs into the computer is bad. Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.

Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.Maybe your DC Power Jack which is where the power cord plugsinto the computer is bad. Take an ink pen and push the tip inside thejack and see if the little pin wiggles, if so the jack is bad. You'll have totake the laptop apart to fix it. Most times it is soldered onto themotherboard, so you will have to desolder the old and solder a new one.

I'm inclined to think that your power cord is bad and you have drained your battery.
When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.

Does your laptop even begin the boot process where it displays stuff on the screen? Do you hear fans running, disk drives running, see lights, hear the cd drive click once and notice a light that comes on the cd drive door briefly when you press the power button? If not you computer either has a bad power cord, a bad dc power jack where the power cord plugs in, a bad mother board or static build up. 1) lets eliminate static buildup by removing the power cord and the battery then press and hold the power button for 30 seconds. Then replace the power cord but not the battery and hit the power button. If it boots up you had static build up. 2) Take an ink pen and put in in the slot where the power cord plugs into the laptop, if it wiggles loosely then your dc power jack which is soldered onto the motherboard needs to be replaced. 3) If the power jack is tight and when you plug in the power cord if you don't see any lights or hear a fan, disc, cd drive, then you can almost bet your power cord is bad. 4) If the power cord is ok then you have a mother board issue. Normally motherboards will give some beeps or constantly blinking lights when you plug in the power cord and try to boot up. These beeps or blinking lights will tell the technician what is wrong with your computer.

Check to make sure the power cord you are using is getting 120 volts and that it is plugged in properly to the pc. If you are sure your power cord is powering to 120 volts, plug it in to the computer and see if the power supply light (in the back of the computer) is coming on. If it is, then the power supply is good, if not, you need a new power supply unit. If your power supply does not have a power light on it, listen for the cooling fans to come on when you press the power button, if they don't, it is very possible that the power supply is bad and will need to be changed.

First , check if is power in the outlet where the fridge is plugged in by plugging something you know works (table light , radio,etc.) , if it doesn't work , means there's not power at the outlet what could be a trpped breaker , burnt fuse , burnt or loose wire at the outlet, or a bad outlet ; but if you got power in the outlet , probably the fridge cord or its plug are bad.

this problem occurs:

When there is too much current.

When the voltage is too high.

When the temperature of the power supply is too high

if you have the console plugged into an extension lead try plugging directly into the wall, but 1st, turn off your console and leave power plugged in to allow fans to continue cooling the system.. after fans switch off, carefully plug out power cord and allow cord and console to cool in a well ventilated area for 24 hours. if its still red you may need to replace your power cord as it may have overheated

Is the it the power supply red light?

The red light may indicate that the power supply is too hot or is overheated. Therefore, you should let the power supply cool for several hours in a well-ventilated space. During this time, you should not try to turn the console back on to allow the power supply sufficient time to cool. As soon as the power supply has cooled off, the power supply light will change from red to orange, and you can turn the console back on.

If the power supply light is still red after you have let the power supply unit cool in a well-ventilated space, the power supply unit may require replacement.
Also make sure the power msupply is plugged in correctly.

You could also purchase a new power cord.
Good luck
Mick