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Compaq presario cq 56

Hey. I have disassembled my laptop to clean the fan and when i put it back up my wireless card wasnt working. After opening it up again and having fixed that, the monitor started flickering. I have opened the display (without opening the whole laptop again as in the laptop's book) and after seeing all cables seemed secure and not taking any of them out or moving them too much, it has now completely stopped working, stays black and it will not come on at all when i start the laptop. not too sure what this means or what I should do....

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Unplug the power and remove the battery. Next, hold the power button for about a minute. Than, reattach the power and attempt a boot.

Posted on Jul 10, 2013

Testimonial: "no, it's not that and it's not the ram either . I'll open it up again today and have a look at the connection, maybe i missed something or they got messed up when i closed it up"


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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Good luck!

Posted on Jan 02, 2017


SOURCE: Compaq Presario V6000 Laptop-Black Screen

i have the same problem, booted with lcd monitor... think it might be capacitor... pain in the but to doit yourself $300 at the shop. having this problem with two hp computers

Posted on May 28, 2008

  • 110 Answers

SOURCE: my laptop monitor flickers

Don't worry about embarrassment, there's a world of difference between software and hardware.

The flickering is most likely either a loose wire or more likely a partially snapped dry solder joint where the florescent panel behind the screen is connected. Since the laptop lid is opened and closed frequently, even the smallest of movements over several years can stress a dry solder joint to the point where it cracks.

Unfortunately it's not a user serviceable thing, but you may not need to return it to HP - a local specialist in flatscreens or more ideally monitors is likely to be able to mend it. Since it's so far out of warranty anyway it's not too much of a risk to use someone not HP approved since they can't invalidate a warranty that's long expired, so get your local phonebook out and start searching for someone who can give you a quote on a flatscreen backlight repair.

Posted on May 29, 2008

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SOURCE: Compaq Presario 1700 Laptop screen flickers and locks up

it sounds possibly that it is going into hibernation. a single press of the power button should bring it back alive.
also feel the bottom of the laptop.... if it is getting close to meltdown you need to clean the dust and dirt from the heatsinks. the fan area may appear to be clear but all the junk gets blown against copper heat sinks so you need to remove the covers to get at it.


Posted on Sep 05, 2008

  • 2 Answers

SOURCE: Compaq Presario F500 Monitor Problem

This might fix your problem. There is a problem sith the bios on select F500 models. Yours might fall in that category.

Posted on Sep 10, 2008

  • 4806 Answers

SOURCE: compaq presario laptop screen flickering

Hi there.
It sounds like you may have a loose inverter cable or the ribbon cable behind the screen is loose.
Is the machine in warranty? I

Posted on May 29, 2009

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You can blow compressed air into the cooling vents of the fan. If you notice clouds of dust coming out, then it might be a good idea to disassemble the laptop, clean the fan & air ways, & reassemble it back. If the fan has failed & is no longer running, it might need to be replaced.

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