Question about PC Desktops

1 Answer

When switching on my lcd flat screen there is an electrical buzzing sparking noise coming from the monitor and it wont switch on any more

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 113 Answers

Please bring it to a repair shop sooner rather than later. They will let you know if it can be repaired. But have a look at the price of a new one. Sometimes it is the better option!

Posted on Aug 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My HP A6400f pc has started to not want to turn on. It makes this wierd buzzing noise sometimes, monitor says video cable connected and then some times it wont even let me manually turn it of I end up...


Hi, mtmj8,

Can you tell whether the buzzing sound is coming from the power supply fan, the disk drive, or maybe an internal fan? I can't imagin it's the power supply fan, as the whole system would likely just cut out.

If it's an internal fan (CPU fan of graphics card), the system will come up to some random point before a component overheats, and usually the device will cut out in order to protect itself. You may be lucky and simply be able to replace the errant fan, or you may have to replace the component itself. Only if you feel confident enough, you may try to open the case and see if you can tell better which component is failing; take all precautions when operating a system with the case opened, and ensure that you do not touch any internal parts even while the power is switched off, as power supplies can retain a charge even when switched off and unplugged from the power supply.

If the buzzing sounds a bit "clunky", it may be your hard drive that's failing, in which case, the prospects for recovery are limited - you will probably have to replace it and reinstall the operating system and any software you have.

Peter.

Oct 21, 2010 | HP Pavilion A6400f Desktop PC, Refurbished

1 Answer

Random "No Signal"


This can happen if your monitor's refresh rate is too high, try lowering the refresh rate, and or the resolution. Also disable the screen saver, as this too can have unwanted results. Further also make sure you have the most up-to-date Video Driver, for your setup too.

Jul 21, 2010 | E-Machines eMachines Desktop PC

1 Answer

Just received Refurbished Advent CBE 1401. It is being replaced because power switch is faulty - but I have questions about machine. 1. When initially switched on the switch turned red is this normal? I...


1) No. The switch color should have been Green

2) No Signal on the monitor, indicates the monitor is not receiving a Video Signal from the computer.

A) Could be due to a faulty monitor cable.
Monitor cable is used on a working computer for a test,
Or,
working computer's monitor cable is used on the Advent for a test.

B) Could be due to the graphics 'engine' on the motherboard, or on the graphics card is bad.

[Graphics 'engine'.
GPU
Graphics Processing Unit.

http://en.wikipedia.org/wiki/GPU ]

If the computer is using Integrated Graphics, the GPU is on the motherboard.

(Integrated Graphics is also referred to as OnBoard Graphics. Meaning On the motherBoard)

You will know if it's Integrated Graphics, because the monitor cable will be plugged into the VGA connector, on the motherboard

http://en.wikipedia.org/wiki/VGA_connector

Since you indicate an adapter was included, to adapt to a different port (Connector), it could be a VGA to DVI adapter, or a DVI to VGA adapter.

Your monitor may just have a VGA connector on the monitor cable.
Hence you would use a female VGA to Male DVI adapter.

Your monitor may be an LCD flat screen monitor, and has a DVI connector on the monitor cable.
Hence you would use a female DVI to Male VGA adapter.

DVI
Digital Visual Interface

http://en.wikipedia.org/wiki/Digital_Visual_Interface

VGA monitors are Analog.
LCD monitors are Digital.

A computer puts out a digital signal.

If a VGA monitor is used, the computer has to alter the Digital signal to an Analog one.
This slows down the video signal.

If your monitor (In any case. Not just this one), is an LCD flat screen monitor, it is best to use a DVI monitor cable, and plug into a DVI port on the computer, if available.

If your monitor is a VGA (CRT. Cathode Ray Tube), monitor, and you have a DVI connection on your computer, using the adapter will do you no good.

The adapter just uses the contact pins for VGA, that are present in that DVI adapter, and hence the DVI connection on the computer.

You're still just getting an Analog VGA signal.

Example of a female VGA to male DVI adapter,

http://www.directron.com/dvi.html

If the Integrated Graphics are suspected to be bad, a graphics card is used in the appropriate expansion slot, for a test.

If the graphics work then, the graphics card is left in service.

After I test the monitor cable my next procedure is to suspect the Power On switch, or the Power Supply, and go to the graphics next.

The reasoning is that Power Supply failure, is the number one cause of computer failure.
The next is the Power On switch, then Electrolytic Capacitors used on the motherboard.

(Specifically, any Electrolytic Capacitors used in the motherboard Voltage Regulator Circuit)

If the Power On switch is bypassed, the diagnosis will reveal if the problem is the switch, or Power Supply.

Bypass the Power On switch, and the Power Supply comes on?
Problem is the Power On switch.

[One Power On switch I have found to fit a lot of computers. The Power On switch goes into the plastic Power On button,

http://www.directron.com/atxswitch.html ]

Bypass the Power On switch, and the Power Supply does Not come on?
The problem is the Power Supply.

The Power On switch is bypassed using a jumper wire, from the green Soft Power On wire, to ANY black Ground wire. The contact made is a brief momentary one.

The jumper wire is used at the back, of the 20, or 24-pin ATX main power cable connector.

To be continued in an additional Comment.


Jun 04, 2010 | PC Desktops

1 Answer

When i switch on there is a buzzing noise and


Sounds like an issue in your power supply. Try a good second hand supply or, if you have to purchase a new one, get a new case with a supply and install the guts of your PC into that as Dell power supplies are very expensive (if they are available at all for your model). Swapping everything into a new case is a pain I know but it may be a lot cheaper then a dell supply. You can also have your supply tested by a professional. Don't be tempted to open the supply and fix it your self.. Switchmode supplies are more then happy to provide all the power needed to turn you into a sticky mass on the floor!!! and the surge capacitors can hold a formidable charge for several hours which really stings when it bites you !!!

Dec 12, 2009 | Dell Dimension 9200 PC Desktop

2 Answers

Unable to drive LG W22432S monitors in WindowsXP


Hi there.
Go to the control panel, select display, click on the settings tab and set the display to 1024 x 768 pixels, that should sort the problem out.
Post back if you need more help.

Good luck and thanks for using FixYa!!

May 14, 2009 | PC Desktops

2 Answers

Monitor stuck in power save mode


Hi,
This might be problem with your with your monitor or videocard.
Click Here to Troubleshoot.
Thanks, PREM

Mar 31, 2009 | Dell Dimension E520 PC Desktop

1 Answer

The LCD does goes dark after power on


you mean few second the monitor goes in black. then its come. if it happen, it is ok

Jan 21, 2009 | Sony VAIO® VGC-LS37E PC Desktop

1 Answer

Laptop comes on but monitor remains black


Hello,

IT could be one of two things. First make sure that you have the laptop set to display on the LCD. Most laptops will have a Function key labeled by Fn then you will need to look at the function keys at the top F1-F12 and find the one that either says CRT/LCD or has a picture of a screen or monitor. Then, after you have found that key, you will need to press and hold the Fn key and tap the appropriate function key, this will alternate between the LCD (laptop) and CRT (monitor). If you have trouble finding the correct key combination for switching displays should be listed in the manual.

If that doesn't correct it, then I would try locating a desktop CRT and connecting it to the monitor connection on the rear of the laptop and again pressing the keys to switch between CRT/LCD. If it shows on the CRT then I would say that the LCD on the laptop is bad.

Thanks

Aug 28, 2008 | PC Desktops

2 Answers

Switching from Dell monitor to LCD monitor


with out seeing the monitor i can just suggest pull out the cord which is in the old monitor and plug it into the new one, if it has the same audio plug slot, im not sure if the dell monitor has a special cord or not , so its hard for me to say sorry

Nov 21, 2007 | Dell Dimension 4500 PC Desktop

Not finding what you are looking for?
PC Desktops Logo

Related Topics:

61 people viewed this question

Ask a Question

Usually answered in minutes!

Top PC Desktops Experts

joecoolvette
joecoolvette

Level 3 Expert

5660 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18299 Answers

Are you a PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...