4 beeps wont turn on screen stays black - Toshiba Satellite M45-S165 Notebook

Does the PS3 turn off?
If it stays on but you have a black screen, is it possible you have your tv set to the wrong channel?
Are you able to hook up your PS3 to another tv...preferably one that you know will work...such as a friend's tv that also has a ps3

I think you will find the battery is the cause of the problem, replace it.

dear i think problem in RAM
please change RAM and check it

keep pushing f2 now youll see the page use arrow keys change your boot log f12 now restart it back up on a f12 now it going ask you do you want run windows go there.

my whirlpool awm1203 washing machine wont turn when the timer moves on to the next setting the dial moves then you can hear it click but doesnt turn on

open and reflow vga chip

To verify that your laptop is function and the monitor is now. Try plugging your laptop into a regular computer monitor. If the computer turns on and displays an image on the secondary screen, then you'll need to look into having your laptop screen repaired.

This could be either that your screen has failed, or has just become disconnected somehow from the screen to the laptop motherboard on the inside of the unit.

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when you turn on the computer does the computer beeps?how many times does it beeps? when your computer beeps 3 times faster..try to check you video card!!!! but when the computer continues to beep and beep try to check the modules or the memory try to replace it with a new memory!!! but when you turn on your pc and no beep at all your motherboard will be the problem?so did i answer your questions?

BLACK SCREEN WHEN START . STAY BLACK

the same thing happens to my camera. did u ever end up fixing it