my emachine EL1850 Acer 5400 gives no signal. what does this mean?

It looks like you'll have to either return it or perform a default factory recovery. These instructions are from their site but proceed knowing that this will erase any data that is stored on the primary partition (meaning if you have anything on it, it's gone...). Esentially it resets it to a point as if you just picked it up in the store (which you did.. :( )


How can I restore my computer with the backup discs I created?
With user created backups you are able to restore your computer to the factory default settings. If backup discs were created instead of factory restore discs, these can be used instead and will restore the system to a user backup point.

If you have a recovery disk:

How can I restore my computer with the backup discs I created?
With user created backups you are able to restore your computer to the factory default settings. If backup discs were created instead of factory restore discs, these can be used instead and will restore the system to a user backup point.

1. Ensure that the computer is completely shutdown, then turn on the computer.
2. When the eMachines splash screen appears, tap the Alt and F10 keys simultaneously. A screen stating "Starting eMachines eRecovery" should appear.
3. From the recovery options, choose Restore system from CD/DVD.
4. Insert either the first Recovery or Backup disc that you created.
5. From the on-screen options, choose a backup.
6. Click OK and the installation will begin.
7. Change the disc as necessary when prompted.
   
   
   If you do not have a recovery disk:
   
   
8. Restart the computer.
9. When the eMachines logo appears on the screen, press the Alt and F10 keys repeatedly.
10. If you are prompted with a Microsoft Windows boot screen, press the Enter key.
11. After the system recovery application has loaded, follow the prompts to reinstall the Operating System.