Question about Dell Optiplex GX520 Desktop PC - Intel Pentium 4 3.0GHz, 512GB DDR2, 40GB HDD, CDRW, Windo

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There is always problem sending command. - Dell <b> Optiplex GX520 Desktop PC - Intel Pentium 4 3.0GHz, 512GB DDR2, 40GB HDD, CDRW, Windo

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For that problem you need to reinstall cd software of your operating system some of system file have spyware and viruses.

or your hardisk drive try to scan using updates anti-virus.

Posted on May 28, 2011

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Posted on Jan 02, 2017

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I HAVE REPLACED THE POWER BOARD. STILL WONT COME ON. CHECKED THE CIRCUITS. YES POWER IS TO THE BOARD. COULD IT BE THE SIGNAL BOARD?


Hi Pam,
For a TV to come on, the power board has to send 'stand by or SB5V or 3.5V ' to the main board. On your pressing power on button on remote control, the main board sends power on command to the power board which in turn produces all the necessary supplies to run the TV. If the main board does not respond to your TV on command, the TV will not work. So It is not the power board which is responsible for not powering on of a TV every time. A voltage investigation before changing boards is always helpful. I hope it helps.

Aug 14, 2015 | Televison & Video

1 Answer

Manual command settings in zebra 3301


need to be more especify ?!?
to send commands to the printer, go to the driver.
to calibrate send !SA command.
To print card test send IM command.
to reset senr R command.
hope help you.

Aug 16, 2010 | Zebra P330i Thermal Card Printer

1 Answer

Function keys are not working with windows7 on dell inspiron Laptop


The keyboard has a feature (and associated button) called F-Lock. By default, when the computer boots, F-Lock is turned on. In the F-Lock mode, rather than sending the standard key commands for the function keys, the keyboard sends special alternate commands (like print for F7 and save for F8) that are configured in the iTouch program. In order to force the keyboard to send the standard function key commands, you must TURN OFF F-Lock by pressing the F-Lock button! Oh, and by the way, there are no indicator lights on the keyboard, and the F-Lock button is an always up momentary button - just like the keys on the keyboard, so there is no way to tell what state it is in, other than by pressing it and then pressing an F key to see what happens!

Hope this helps.

Jun 11, 2010 | Dell Inspiron 1501 Notebook

1 Answer

Receive a drive one \error not found message


The keyboard has a feature (and associated button) called F-Lock. By default, when the computer boots, F-Lock is turned on. In the F-Lock mode, rather than sending the standard key commands for the function keys, the keyboard sends special alternate commands (like print for F7 and save for F8) that are configured in the iTouch program. In order to force the keyboard to send the standard function key commands, you must TURN OFF F-Lock by pressing the F-Lock button! Oh, and by the way, there are no indicator lights on the keyboard, and the F-Lock button is an always up momentary button - just like the keys on the keyboard, so there is no way to tell what state it is in, other than by pressing it and then pressing an F key to see what happens!

Dec 23, 2009 | Dell Dimension 4700 PC Desktop

2 Answers

How do I send EPL commands to Zebra TLP2844 printer through USB port?


You can use the driver to send commands to the Printer via any port you have setup to. See Printer Tab and then select Tools, in there you will find a field to send commands.

Oct 28, 2009 | Zebra LP 2844 Thermal Printer

1 Answer

Hi dudes. i had erd commander 2007 but it not compatible for win vista. can any one help me to get the win vista compatible erd commander. just send me the link to sunil.dt@hotmail.com


ERD commander 2007 works for Vista, i have used it several times. ERD cannout always log into the operating system when you boot to it. Often if it is too damaged it wont log in and allow you to system restore or anything.

Sep 12, 2009 | Microsoft Windows Vista Ultimate Edition

1 Answer

Keep hearing "command not recognized"


well. the problem is that you're probably hitting the command button where you sumbit voice commands like: call "mom".
its a stupid thing to put on a phone, and I've never seen anyone use it. but whatever, verizon's stupid.

again, the voice command key on the enV is the clear button. so if you hold it down, you'll hear the "command not recongnized, after you hear "please say a command".
your hearing it over and over again because you accidently hit it, and since you dont say anything after the beep it gives, it goes "command not recongnized". i dont think it says "please say a command" when its on vibrate, but i couldnt be sure.

hope i helped :)

Jul 20, 2009 | Verizon Communications enV2 Cellular Phone

4 Answers

Blue patch


you didn't state how many hours are on the unit, but I'm guessing close to 3,000 hours, that is when most brands have LCD panel failures, due to the heat over time the coating on the lcd panels burns off, the panels start to burn up, and it gets worse with time, and you notice it more when you put a fresh bright lamp in. if it is low hours then you could have a bad lamp, that casts a bad tint, but it sounds like fried LcD panels, a sure way to tell, is put up a white back-ground screen and see if you see discolored "BLOB" in the center of the screen.
keeping the filters clean, and the projector cool is the best way to prevent this.

Nov 09, 2007 | Hitachi PJTX100 Multimedia Projector

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