Solved how to troubleshoot E machine monitor no signal problem

August 11, 2014 at 13:47:28
Specs: Windows XP
My E Machine monitor states that there is no signal, The power on the pc comes up and fan is running really good but nothing shows up on monitor.

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✔ Best Answer
August 14, 2014 at 00:40:36
Dusty, usually the internals of the PC tower are fairly straight forward to piece together. Basically if something doesn't fit somewhere it doesn't belong.

Usually a flat CMOS button battery will just revert the BIOS to its default settings but the PC will still power up normally. A giveaway is the date is reverted back to the BIOS's manufacture date. But unfortunately you don't have a screen image to factor this out right now.

I'm assuming there aren't any beeps when you power the PC up?

Do you have multiple slots for the RAM? And do you have more than one stick?

Disconnect the power completely from the tower and try inserting just one stick of RAM in the slot closest to the centre of the board. Power on and see if you can successfully get the computer to start.

Also are the graphics integrated or do you have a graphics card installed that you run the monitor off? If you have a graphics card try reseating it. Also if the motherboard has a graphics port you could try using that instead for troubleshooting purposes.



#1
August 11, 2014 at 15:29:05
Firstly, have you verified that all connections are intact? What happened immediately preceding the problem? Did you make any hardware changes?

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#2
August 12, 2014 at 11:40:10
Hey Jennifer, first let me say thank you for your reply, the answer to the question is the pc has been setting up for over a year, I went inside and cleaned every bit of dust and any grime I could find. I made sure the memory cards were cleaned with an eraser, but it still doesn't come up, I also changed monitors and cable and no positive results, I'm going to check power supply specs online and then measure the output from the bridge rectifier. Dusty

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#3
August 12, 2014 at 15:10:23
In case you don't know, there's most likely nothing wrong with the monitor other than it's not receiving a video signal from the tower. Did you clean it before or after the problem began? Are you hearing any beeps from the tower?

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#4
August 13, 2014 at 07:36:19
Hey riider , I connected everything and tried the system out at first, then broke it down and cleaned it. 'm still trying to find the wiring diagram and schematics for the system. I wish I could at least get into bios, I could then fix the problem. I do hear some nosies from the pc , the hard drive is running for sure. I think your right about the monitor I've never had any problems with it . I have a question maybe you could answer for me, If the small round battery in the pc is dead would that affect the system ? I really appreciate any help I can get. Thanks Dusty

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#5
August 14, 2014 at 00:40:36
✔ Best Answer
Dusty, usually the internals of the PC tower are fairly straight forward to piece together. Basically if something doesn't fit somewhere it doesn't belong.

Usually a flat CMOS button battery will just revert the BIOS to its default settings but the PC will still power up normally. A giveaway is the date is reverted back to the BIOS's manufacture date. But unfortunately you don't have a screen image to factor this out right now.

I'm assuming there aren't any beeps when you power the PC up?

Do you have multiple slots for the RAM? And do you have more than one stick?

Disconnect the power completely from the tower and try inserting just one stick of RAM in the slot closest to the centre of the board. Power on and see if you can successfully get the computer to start.

Also are the graphics integrated or do you have a graphics card installed that you run the monitor off? If you have a graphics card try reseating it. Also if the motherboard has a graphics port you could try using that instead for troubleshooting purposes.


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#6
August 15, 2014 at 21:20:27
Emachines have been notorious for bad power supplies...that would be my assumption....even though you may hear the hd run, etc...it may not getting enough from the power supply....just to be sure, try another monitor OR try the monitor with a different PC

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message edited by XpUser4Real


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#7
August 18, 2014 at 10:55:42
Thank you btk1w1, I just got the bios up, Thanks who would of thought the internal battery would be the culprit , I would like to thank everyone that replied to my posting for there help, when I was in electronics class many years ago I remember the instructor saying always check your power supply first, Duh, I guess should have listened a little more , Thanks everybody ya'll are most excellent .
Dusty

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