Question about Daewoo F227B Monitor

1 Answer

No power in my Daewoo Monitor

I have a Daewoo Monitor model f227b that I purchased in 2003. It's worked fine until a week ago when the power indicator light in the center at the bottom of the unit would not show any indication of power. Usually if it was hooked up to power the light would be amber. If it had a monitor cable attached to a running computer the light would be green. I've taken in to Micro Center where I bought it and they couldn't suggest a solution. The power supply is internal so the power coming in is a standard 3-conductor ac cord computer cord. Is there a replaceable fuse inside ? Can the power supply be repaired/replaced ? There is nothing on the screen. It's totally blank.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers
Re: No power in my Daewoo Monitor

Hi, Youo have zeroed in on the problem area. It looks like a power supply problem. More often than not, there is a fuse inside. If you would venture to open the unit up, do a visual check on the fuse. If it is busted: 1. Clean - no burnt/scorching/black marks inside the glass tube, then you can simply replace and hopefully the unit will be operational; 2. Dark smudges - or small burnt metal pellets inside the glass tube, then it is possible that you have other defective components that caused the fuse to blow. Normal components that are known to go bad are the big capacitor and or the power transistor regulator. Most current designs uses a switch mode power supply where your mains AC voltage is converted to DC that powers a circuit that eventually produces a lower DC voltage say 12VDC for use of the monitor. Should you venture a DIY (do-it-yourself), pls remember safety precautions when working with powered electronics. Hope this be of some help/idea. Post back how things are or should you need further information. Good luck and kind regards.

Posted on Sep 26, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Vertical blue lines in the monitor

try disconnecting the monitor cable and fixing it back.

Mar 02, 2012 | Daewoo F227B Monitor

2 Answers

My 6 year old Daewoo F227B began to fade yesterday and go a bit blurry. Is there a fix for this or do I need a new monitor. My computer is about the same age.

The back lighting which is made up of a fluorescent light array, dies, as you have experienced. The picture in most cases can still be seen but it is very faint. Yes it can be repaired.

Phone around to get an idea of cost, you will have to decide which option sounds good to you. With regards to the cost of repairing or the cost to purchase a whole new monitor that is bigger and has a warranty.

You may find that a new monitor is relatively cheaper, remember that the monitor is not to be thrown in the bin.

Take care!

May 25, 2011 | Daewoo F227B Monitor

1 Answer

I am not getting anysound from the speakers

This monitor has integrated speakers so therefor needs an audio cable to plug in from your computers Audio Output Socket (usually green color) into the monitors audio input jack. It needs a stero type plug for right and left sound. Have a great day.

Dec 05, 2010 | Daewoo F227B Monitor

1 Answer

Don't know how to decrease the brightness. It's straining my eyes. When I push the front bottom Menu button, a rectangle appears with the word Brightness, but I can't find how to decrease it.

Here is a manual for a Daewoo Monitor. On page 3 it indicates that there are buttons that show a right and left arrow above it. When you have the brightness menu highlighted press the left arrow button to decrease the brightness.

Sep 29, 2010 | Daewoo F227B Monitor

1 Answer

Vertical n horizontal ic

Are you asking about this LCD Daewoo (F227B) monitor? LCD monitors do not use Vertical/Horizontal IC like the CRT type for the H/V Yoke.
What is the problem with the monitor?
Common problem with LCD monitor:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for:
Post back what you see inside so we can guide you further and it will help out other people in the future also.

May 19, 2010 | Daewoo F227B Monitor

1 Answer

Daewoo w9zq 19"tft power light flashes but no screen :s

Open it up and check for bad caps in the power supply first, post back what you see so we can guide you further, see example of failed monitors due to bad caps:

Feb 12, 2010 | Daewoo F227B Monitor

1 Answer

Monitor does not come on and power light slowly blinks.

there are no signal output off your pc check your pc

Jul 10, 2009 | Daewoo F227B Monitor

1 Answer

I'm trying to service a Daewoo Monitor f227b

The slot with the K on it is a Kensington lock, it is an anti theft lock and does not affect the disassembly. Most monitors can be carefully prised apart as they are only clipped together.

Sep 27, 2007 | Daewoo F227B Monitor

1 Answer

Daewoo monitor

If you know a little bit about electronics, then you can find or buy a multimeter to check the output voltage of the AC/DC power adapter (if it uses one, sometimes the converter/adapter is inside the monitor). In order to get a voltage reading from center "hole" of the end of the power cord, use a paper clip (thicker paper clip if you have it). If the converter voltage is good, then this monitor might be a warranty return candidate. Hope it's only a power adapter problem (you can find a replacement on Ebay) ZT3000 "Beta tester of "0"s and "1's"

Aug 21, 2007 | Daewoo F227B Monitor

Not finding what you are looking for?
Daewoo F227B Monitor Logo

332 people viewed this question

Ask a Question

Usually answered in minutes!

Top Daewoo Computer Monitors Experts

Colin Taylor
Colin Taylor

Level 2 Expert

322 Answers

Daniel Cardenas
Daniel Cardenas

Level 2 Expert

91 Answers

Audio Service Clinic...

Level 3 Expert

924 Answers

Are you a Daewoo Computer Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides