Question about 3G Technology GM-171B 17" Flat Panel LCD Monitor

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Monitor temporarily on

My monitor temporarily turns on (less than a second) when I boot my PC. After that the green power light is on indicating power and a good connection, but my screen is blank. What could be wrong?

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Hi, It looks like it may be receiving power from the computer but not a signal. Try a different monitor cable from the PC and even a different monitor. If doesn?t work, it could be the graphics card in the PC. Daniel

Posted on Feb 16, 2006


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It sounds like the power supply is failing. This computer has an odd size power supply. You could try another power supply from another computer and see if it boots up just connect it from the outside of the case temporarily . If it is the power supply you could remove the power supply to measure it and search online for the correct one. I just did a Google search and there were alot of option to choose.
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The Dell AS 501 monitor display comes and goes off in seconds. If I switch off and on again, the display comes back and goes off again in less than a second. I repeat this as many times the same monitor...

This sounds like the power inverter is failed.. It's what pumps up the power for the light in the monitor.
You could try unplug the sound bar from the back of monitor if you have the sound bar installed. Just a maybe..
To fix the inverter (replace) is usually better to buy newmonitor unless you do it your self.
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When i turn it on it only appears only a second , my monitor turn black

Hello Chelleydiao, hi, its either you have a CPU problem or the monitor itself. Check or use another monitor to see if the problem is fix. you see an blank monitor can also be caused by the CPU if it fails to boot. the aid the checking, do you see any orange light on the monitor? or any indication.... the led light on the screen in summary: green or blue means there is power and the CPU boots up. if orange the CPU fails to boot, if there are no lights on the Monitor panels, there are problems on the monitor. check these first....I need a much detail description.

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Check your fans o see if they are running and if the PC isn't getting too hot because that will cause it to stop and not boot up.

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Screen does not turn on but green light is on.

Green light indicates the monitor is getting power. Nothing coming up on the screen indicates, No Signal.

No signal from the computer. This means the computer itself isn't working.

A bad power supply in the computer can cause this. A bad power supply is the leading cause of desktop computer failure. It is replaceable, and can be done by the owner relatively easy.

You may have a computer tower that the Power light comes on, you hear fan/s spinning, (Including the Power Supply fan), and it sounds like the harddrive is running.

ALL the lights in your computer use less than 1 Watt.
EACH fan uses 2 to 3 Watts.
A harddrive sitting there spinning in an endless loop, consumes about 2 to 3 Watts.

A Processor uses 51 to 125 Watts. Depends on what Processor it is.

A weak Power Supply will have enough power for lights, fans, and that harddrive sitting there spinning.
It won't have enough power to turn on the Processor.

[No processor operating, then the harddrive sits there spinning in an endless loop, because there is no processor to find the boot sector]

For a test, connect your monitor to a know good computer. See if it works.
Now connect that other monitor to your computer.

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Monitor displays breifly then goes to blank screen

If tried the monitor on two other computers with the same result -- definitly your monitor is faulty. Take it to the repair shop. To make double sure, run your computer with another monitor. If everything is fine now; you can blame the monitor.

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Connect an external monitor to the laptop and see if you can see what is happening on that.
It is a possibility that your inverter is faulty and will need to be replaced. They will normally power on for a few seconds, then cut out.
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You can email and provide your telephone number... he will call you to assist.

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Sounds like a problem in the power supply section that will need component-level electronic troubleshooting. If it's under warranty and less than 30-60 days, I would suggest an exchange. If not, I would call the number in the manual for help.

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