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C 5802 always burn out after replace - Samsung SyncMaster 750S 17" CRT Monitor

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Re: C 5802 always burn out after replace

Caps burn out 'cause they HATE reverse polarity, so ya getting AC or Ripple from somewhere to that Cap... find out why and that may fix ya problem

Posted on Jul 15, 2007

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A blinking monitor?

Power supply. It is 99.9% always the power supply board in a monitor, and almost ALWAYS a $ .79 capacitor.

Just Google for information specific to your monitor, grab a soldering iron, and "have at 'er!".

Just replace the capacitor that smells like fried chicken (or dirty feet). If you don't just SEE it as burned up, you will likely smell it.

Mar 04, 2015 | HP LE1901w - LCD display - TFT - 19" -...

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Strange hissing sound and smell comes from the monitor

Whenever you experience an unusual smell coming from anything electrical, always turn it off and/or disconnect it from any power source until you learn more about the problem. A fire can make make any problematic device seem suddenly unimportant.


An extremely common component in nearly any electronic device is a capacitor. The sizes vary from baby-tooth-sized to bowling-ball-sized found in the power box for most photography studios. The hissing sound is likely caused by one of these. The noisy capacitor may be going bad or another component or an electrical short may be causing it to get too much power. I've attached a video of what happens when capacitors get too much power.

An electrical short could also be causing both symptoms. If the smell is similar to burning organic matter, you likely have an insect (a crispy critter) that can be removed to remedy your problem. However, an electrical burn usually releases gases from burning rubber or plastic and has a distinctly different type of odor. If that's the smell and you are handy with a soldering iron, remove the cover to your monitor and look for signs of burning or overheating. Otherwise, the task should be left to an electronics shop for repair.

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Oct 23, 2012 | LG Computer Monitors

1 Answer

Xtreme Flat KDS 19" monitor got a burned smell,

This monitor should be trashed, CRT monitors are not worth repairing. LCD monitors a cheap and energy efficient.

Jul 19, 2011 | KDS Xtreme Flat 9e 19 in.CRT Conventional...

2 Answers

I have Dell 1907fpc monitor. The image flickers and finally darkens. how to resolve the problem?

It sounds like your LCD Backlight/s are going out. To fix you will need to replace the LCD screen inside the Monitor. It may be more feasible to replace the Monitor.

Feb 24, 2011 | Dell UltraSharp 1907FP 19" LCD Monitor

2 Answers

Screen remains black

the back lights burn out, the invertors burn out. the power supplies burn up. you can usally repair the power supply with new capacitors

Jan 03, 2010 | BenQ FP731 17" LCD Monitor

2 Answers

I have an IBM 9417-HB7 monitor that quit working for me. I took it apart and saw that 3 capacitors were blown, (820yf, 25v). I thought this would fix it but, all I get is the power light to come on. Can...

I am seeing many of these 9417-Hx7 IBM with the 3 820uF caps bulging. Almost always the inverter driver FETs are shorted, and cause burn marks on the plastic cover. Sometimes the zener protection diode is also shorted. Ohm meter will show how many are shorted and need replaced.
Monitor Mike

Sep 03, 2009 | Computer Monitors

1 Answer

LG Studioworks 552V hout burns off

1. cheak the G2 , G4 wires. ( properly fixed it )

2. Near to LOT one flyback capacitor 1600 / 2KV problem.

3. damper diode BYW 96

4. LOT Problem.

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2 Answers

Blank no video

Replace the Capacitors in the power supply. Start by replacing the two 1000 uF and two to four of the 470uF. Make sure you replace them with computer grade replacements i.e 105c temp rating and it doesn't hurt to up the voltage either.
This will usually do the trick. If not, you may have a burned out CCFL or one or more of the driver chips that drive the transformers is toast. Lastly there is always the possibilty of a shorted transformer.
Good Luck!

Feb 29, 2008 | Samsung SyncMaster 910MP 19" LCD Monitor

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Power on Green but no display (blank screen)

In the LCD1830 the inverter for the backlight always burns out. They are fairly easy to replace when you remove the back to get inside. A new one is available from MoniServ for $69.99.

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