Hi, HP dv1000 computer. screen goes dark shortly after initial boot. If I press the switch at the top left of the unit ( the one that puts the unit in standby when the lid is closed), the screen comes to life momentarily sometimes for 15 to 20 seconds. I can use with an external monitor and when the screen is dark, I can see that it is operating, but it is too dark to use.
Any ideas? Thanks, Steve
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Re: screen problem Hp dv1000
The main two causes for this, are the inverter, which supplies the screen with the proper amount of power in order to function correctly, or the screen. If the inverter isn't puting out enough power it will cause the screen to darken or black out completely. Start by checking the screen connections. If all the connection are properly seated, the it's either the inverter or the screen it self.
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4 Short beeps would indicate during POST (Power on Self Test) there is a initialization issue with added hardware. The DIMM you added may not be compatible, or installed in the correct order.
1. Remove new memory completely, and see if machine starts
2. If you have original memory module still installed, remove it and try new one by itself.
3. If that works, put newer larger module in the 1st slot, and move original in second slot, and try again.
The system can automatically adjust memory settings (speed and timing) itself from the SPD module on every stick of RAM. However if the settings are drastically different, it can cause problems. Generally it will run as fast as the slowest module, but now always, sometimes causing the slower module to be attempted to run out of spec and cause boot issues or system instability.
The lid actuator switch may not be working correctly. It's a small switch above the keyboard and led's on either the right or left side. Try pressing it 2 or 3 times to see if the display starts working correctly again. If so, it will need to be replaced.
If that doesn't work, you can also turn it on with the ac adapter plugged in. After it boots, press the power button and hold it in until it shuts off and then turn it on again and see if the display has returned to normal.
If neither of these options work, your laptop may need to have the backlight replaced.
This is common problem. To get to that you'll have to take everything apart including motherboard. It's part of the top case. You'll have to bend it up for it to work or completely disable it permanently.
If there is no media in the card reader, press F8 after the laptop beeps during boot and this should give you a Safe Mode boot screen, choose Safe Mode and then your default OS listed. After you get your desktop, restart the laptop.
If when you press F8 you get a boot from what screen, choose your hard drive and then immediately press F8 again to get the Safe Mode boot screen.
You need to either remove the flash media or use Safe Mode and then restart to reset the Boot Ini information script.
Let me know if this works for you or not, as we may need to take another measure.
You have a power issue. The board is not charging the system or the battery. If you know someone with a similar model, ask them if you can borrow their battery and see if your system boots with it. If it does, you may need a new adapter or the power board in the notebook is out. When you remove the battery and try it, there's enough juice to power it up for the moment, but not sustain it.
It may be that the brightness of your monitor is turned all the way down. In the lower left of your keyboard, there is a "FN" key between the windows logo key and the left ctrl key. Hold this fn key down and continually press F8 until the screen brightens up.