My Compaq altec lansing laptop wont start it just blinks on D3 and D7 leds what is the solution?

SOURCE: Altec Lansing speakers in laptop

It seems as though the speakers wire connector may have become loose or disconnected. You will have to remove the switch cover above the Keyboard to check. Here is the typical instructions for removing it:

Before you begin any removal or installation procedures:

1. Shut down the computer. If you are unsure whether the computer is off or in hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power cord.
4. Remove the battery by following these steps:
a. Turn the computer upside down with the front panel
toward you.

Close the computer.
3. Turn the computer upside down with the front panel
toward you.
4. Remove the three Phillips PM2.5×5.0 screws that secure
the switch cover to the computer.
5. Turn the computer display-side up with the front toward you.
6. Open the computer as far as possible.
7. Lift the rear edge of the switch cover and swing it forward
until it rests on the keyboard.
8. Release the zero insertion force (ZIF) connector 1 to which
the LED board cable is connected and disconnect the cable 2
from the LED board.
9. Remove the switch cover.

Remove the Keyboard:
Remove the four Phillips PM2.5×7.0 screws that secure the keyboard to the computer.
Turn the computer display-side up with the front panel
toward you.
5. Open the computer as far as possible.
6. Lift the rear edge of the keyboard 1 until it rests at an angle.
7. Slide the keyboard 2 back to disengage the tabs on the front
edge of the keyboard from the top cover.
8. Swing the keyboard 3 forward until it rests on the palm rest.

Release the ZIF connector 1 to which the keyboard cable is connected and disconnect the keyboard cable 2 from the system board.
10. Remove the keyboard.

Remove the Speaker Assembly:

Disconnect the speaker assembly cable 1 from the power button board.
5. Remove the two Phillips PM2.5×4.0 screws 2 that secure the speaker assembly to the computer.
6. Remove the speaker assembly 3.

Reverse directions to replace everything.

http://static.tigerdirect.com/pdf/HP_Pavillion_dv6000_MnS.pdf

SOURCE: the hp altec lansing laptop wont turn on

my hp altec lansing laptop doesn't opwer on, the button lights up for 1 second and then shuts down,nothing happens to the screen, it stays blank