Computer turns on, but screen says no signal
Computers send out a video signal.
If the monitor isn't receiving a video signal, you get No Signal on the monitor.
First thing to check is the monitor cable. Cable is used on another working computer to verify, or known working computer's monitor cable, is used in place of it.
I believe we can skip that.
eMachines are budget computers. Designed to save the consumer money, and give the consumer a decent computer.
Problem is low cost of computer, is due to certain hardware components inside the computer, are of low quality.
The Power Supply being one.
Dirty computer inside, also leads to early Power Supply demise.
1) Test the Power Supply with a multimeter. If you do not have access to one, economical models sell for around $5 to $12.
You will be testing three main voltages;
3.3 Volts, 5 Volts, and 12 Volts. All are DC Voltage.
In comparison two D cell flashlight batteries store 3 Volts DC.
[ Power Supply's are converters. They convert the dangerous high AC voltage (100 to 240. Depends on what country you're in), to the above low DC Voltages ]
Or do you have a KNOWN to be good, Compatible power supply; you can borrow from a working computer?
(I posted this one time, and the person posted back they had borrowed a Power Supply, from their aunt. Computer sat in the garage unused. When finished they returned the Power Supply. Put it back in the computer. Then went, and bought a new one )
Before performing the above, would like you to try this;
Unplug the computer from power. Press, and hold the Power On button in, for 10 seconds. Let go.
Do this same procedure two more times.
Continue also, until the Power On light doesn't briefly flash anymore.
Now plug the computer back into power. WAIT 1 minute.
Turn the computer on. The processor fan, computer case fan/s, and Power Supply fan; should race, (High idle speed), for a few seconds; then slow down. Let's see.
For additional questions please post in a Comment.
Also post the model number of the eMachines. Some examples, T1090, W3653, etc.
Nov 19, 2012 |
E-Machines eMachines Desktop PC