Question about IBM ThinkPad T21 Monitor

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Computer boots but monitor will not turn on could the power source for the monitor have slipped out? If so how much do i HAVE TO TEAR DOWN TO FIND OUT?

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The monitor power should just be a cable with one end that plugs into your wall, and the other that plugs into your monitor (some are hardwired to the monitor, so you only have one end - plug to the wall). If that power cable is connected securely and your monitor still won't turn on, you're monitor has probably fried and it's time to buy a new one.

Posted on Mar 26, 2011

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Posted on Mar 26, 2011

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Power flashes on for a second and then turns off completely


The most likely problem is that the power supply has failed.

Jul 19, 2013 | Shuttle XPC SD32G2 Barebone

1 Answer

My dell gx260 ligth come green if i turn it on but for a few mins time it turn orange why


Do you mean the monitor's power light starts green and then turns orange when you turn it on? Most monitors will go to a power saving mode when they do not get a signal from the computer.

The Dell GX260 has a green power light when on. When the computer is off, the light is off. If it is green and blinking, then the computer is in a power saving mode.

Diagnosis: start with the obvious: is the monitor cable plugged into both the computer and the monitor (if not permanently connected to the monitor)? Are you connected to the active port? (You can add a video graphics card in most desktops. The motherboard video port usually needs to be disabled to use the card ports. If you plug in the monitor cable to the disabled port, it won't work.) Is the monitor set to the correct input? (This applies if the monitor has several ports. In that case, there will be a Source or Input button on the monitor.) Is the computer on? The GX260 has the power button on the front. (Other computers have the power button on the top.) There is also the power supply switch on the back which needs to be on.

Next try a different data cable between the monitor and the computer (if you can). Try a different monitor. If a second monitor works, than the monitor has a damaged main board. If the second monitor doesn't work, then the video graphics adapter has probably failed. Replace the add-on card, if in use, then boot in the safe mode to remove the old graphics driver. Then install the correct driver for the graphics adapter.

Note: the computer and the monitor should both be off when you connect the cables. Then turn on the monitor first and set it to the correct source before turning on the computer.)

I hope this helps.

Cindy Wells

Aug 21, 2011 | Dell OptiPlex GX260 PC Desktop

1 Answer

A white screen display on my laptop


Hello,


You may try this; Turn OFF the laptop, remove the power sources (ac adapter and battery). Without power sources, hold power button 10 secs. Put back the power sources, and power ON the NB. If the laptop will not boot by doing this, take it to the nearest repair center or contact ASUS (if in warranty) to have it check for LCD problem.

Mar 16, 2011 | ASUS LCD Monitor

3 Answers

My flatron L1710S flat screen will not come out of power saving mode. When I turn on the monitor the power button/light is green for a few seconds, the screen indicated "power saving mode", then...


I switch on my PC, ensuring that all cables, leads and power supplies are connected properly. The tower powers up no problems at all. I switch the screen on, the green led lights up, the screen is completely black. A blue box appears centrally on the screen with the text 'power saving mode'. The green led light turns amber and then the screen just goes black.

Please don't suggest going to control panel, as I can't get that far.

PLEASE PLEASE CAN ANYONE SUGGEST ANYTHING give me

Mar 08, 2011 | LG Flatron L1710S 17" LCD Monitor

1 Answer

My monitor does not boot anymore the only thing it does is a flashing green light


check video card or power source ... often it's the power source, some capacitors failed

Jan 02, 2010 | Likom Futura Ld1521 Monitor

2 Answers

When I turn boot up my gt5220 the monitor briefly flashes and then goes into power saving mode- desktop stays on, fans running and all, until turned off by holding power button down or unplugging it.... my...


first try to connect another power source if it does work that is good then try the other options 1- rams 2- vga card 3- cpu 4- of course there is always the motherboard option....
i had the same problem several times mostly it is the power supply ( the power source ) sometimes gives a weak voltage or amps....

Dec 02, 2009 | Gateway GT5220 PC Desktop

1 Answer

No image -- monitor remains black


Without any instruments to check it with, substitution is the best test; in other words connect the monitor to another system for a minute or two and/or a different monitor to your system. (If you can do either, don't do 'hot' swaps, turn everything off and then back on again.)

If you've noticed it; you may have seen that the LED flashes if the monitor is left on and the system shut down. Removing the VGA cable from the back of your system (or the monitor if it is separable) should produce the same result; flashing LED. If this is the case, then your video source from the system (on-board of add-on) has failed. If the video chipset on the motherboard has failed, it can be disabled and replaced by an add-in board for a few dollars.

Oct 12, 2009 | Acer AL1916ASD (Silver) Monitor

1 Answer

Cooked motherboard


Personally, I've never seen a monitor damage a motherboard. Since monitors have their own power source, the HP answer of the monitor "drawing too much power" is bogus.

Possible failures could include the following:
  1. Failing Power Supply - if you haven't tried a different power source, then that is the 1st thing I'd look at, expecially if another system will run the monitor.
  2. A peripheral item, (Keyboard, Mouse, Printer, scanner or other USB device is preventing POST completion of boot completion.) try booting system with just video and power, nothing else.
  3. Check the monitor cable for bent/broken pins. I have seen bent pins on a cable connection short out a video card, this could cause a no post if the video is integrated.
  4. I just reviewed the HP site on this system, and it appears to ship with a PCI-E video card. It appears most likely that the Video Card (If one is installed). If you have the PCI-E video card in system, remove it, and connect to the intergrated video connection and see if ystem posts.

Feb 08, 2009 | Envision 19" Widescreen Flat Panel LCD...

1 Answer

Power Failure


If you mean the Monitor is powered by an external power supply Then that indeed is an option worth trying Simply get a multiple voltage one and set it to the voltage of the existing one. There may be internal problems such as the inverter But this will be a repair shop job.

May 22, 2007 | Daewoo L700C 17" Flat Panel LCD Monitor

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