Question about Dell Dimension 3000 PC Desktop

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MONITOR DELL MONITOR COMES ON THEN OFF.AFTER ABOUT THREE TIMES IT STAYS ON.

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PUGG, Is is a CRT or LCD?
If it is indeed a CRT, then the monitors main capacitor is going bad...

Posted on Mar 06, 2008

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Posted on Jan 02, 2017

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Yellow light is on and monitor is not coming on


This has worked three times on a Dell PC: shut down; turn off monitor and PC at wall socket, unplug wall sockets, wait 30 seconds, plug back in to wall socket or power board, turn on, all should be well?

Dec 22, 2010 | Dell Computers & Internet

1 Answer

The monitor only stays on for three seconds


I will assume that you already try this mnoitor with other PC and still get the same result, same with new VGA cable.
Then you will have to do some component level trouble shooting, common failure in these Dell monitors (made by BENQ) are due to poor solder joints and shorted out transistors (c5707/5706) in the inverter circuits. See pictures of failed Dell monitors for guide: http://s807.photobucket.com/home/budm/allalbums
Post back what you see, otherwise you can get the replacement board from http://lcdrepair.us/powersupply.html

Mar 30, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Dell monitor will come on but will not stay on. stays on 5sec


5 seconds? Hmm, too long for inverter driver turning into protection caused by bad lamps. Also too long for PWM controller in the switching power supply.
Rather looks like overheating of the FETs in the inverter, they are driving HV-transformers. Open the monitor, remove metal lid and observe inverter board. If PCB under and around these FETs is darkened, replace them.
These Dells hard to open. Take the foot off and unscrew plastic cover. Then using flat screwdriver with wide blade separate plastic halves of the case, starting from bottom edge and moving to opposite. It might be sweaty.

Sep 13, 2009 | Dell E173FPf 17" TFT LCD Flat Panel...

1 Answer

Hp flat panel monitor comes on shows logon and then blank screen


Ok, another words, monitor powers up for few seconds and shuts down by itself. If green LED on the front panel turns off as well or stays on?
If stays on, then inverter turns into protection mode because of old backlight lamps.
If it turns off in same time with an image on the screen, then there are some bad electrolytic capacitors in the power supply.

Sep 11, 2009 | Dell E152FP 15" Flat Panel LCD Monitor

1 Answer

When I start my computer my Dell S199WFP Flat Panel Monitor does not go on and stay on. It comes on for about two seconds or and switches off. I have to turn it on about 20-30 before it will stay on. While...


Hello

You have capacitors on the monitors power supply that have changed value. Soon they will keep the monitor from turning on at all. Send it to a company like mine or take it to a local repair person.

Aug 02, 2009 | Dell UltraSharp 1800FP 18.1" LCD Flat...

2 Answers

Monitor is black. Press power on monitor/screen shows for 1 sec


You will need a new monitor screen. I have had two screens go on me recently and what you describes normally happens

Dec 10, 2008 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers

Monitor shuts off but green light stays on


I perhaps can. I would think inverter or ccfl's.

Jun 12, 2008 | Dell UltraSharp 2407WFP 24" LCD Monitor

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