How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Chris R. Your Own Question

Chris R.
Chris R., Computer Tech
Category: Computer Hardware
Satisfied Customers: 1043
Experience:  BSBA CIS, A+ Certified
70521640
Type Your Computer Hardware Question Here...
Chris R. is online now

I have a Samsung Synmaster 940MG - An electricity mains power

Customer Question

I have a Samsung Synmaster 940MG - An electricity mains power surge appears to have stopped this from working and blown something inside. I am competent with electrics and electronics - is there anything I can look at to repair/correct this monitor ?
Submitted: 2 years ago.
Category: Computer Hardware
Expert:  Chris R. replied 2 years ago.

my name is***** and I would be happy to assist you today.

I am really not an electronics repairman just a computer tech. I do have some general knowledge though. Here are a couple things to check.

1) Are you getting any power at all to the monitor? If no open the monitor and look fuse. I am not sure about this model but a lot of TV's and monitors have a fuse that can be replaced. As far as I know you would just need to match the size and amps of the fuse.

2) If you get power via an LED but no picture from a source or the On Screen Display then it could be a burnt out inverter board.

3) If you can shine a light on the screen and you can make out a display then the the backlighting went dead.

4) If it is any other random problem it could either be something wrong with the main circuit board, or there are blown capacitors. You can tell if a capacitor is bad because it will have a top that is curved out. A good capacitor is pretty much completely flat.

I hope this is enouh information to start investigating. Is there anything else you need assistancve with? or does this answer your question?

As always be very careful working inside the monitor as there is always a chance of electrical shock. If you are not sure what you are doing it is best to bring it to get repaired or replaced.

Customer: replied 2 years ago.

Thanks info - feel ok to take back off and look . The monitor appears completely dead - no LED, no shadowy image. If there is a fuse then it may be an easy solution. Will report back. Thanks help.

Expert:  Chris R. replied 2 years ago.
Sure thing and please remember to rate my service with the Smiley Face icon and hit the submit button. This ensures that we are compensated time helping customers.

If you need any other assistance please let me know!

Take care.
Chris R
Chris R., Computer Tech
Satisfied Customers: 1043
Experience: BSBA CIS, A+ Certified
Chris R. and other Computer Hardware Specialists are ready to help you
Customer: replied 2 years ago.

still looking at monitor - back now off - no fuses to check - mains power appears on back of euro socket ok - nothing looks blackened or blown - - power supply circuit appears v simple - one big capacitor looks ok & has 336 V dc across its ends so that part of circuit appears perhaps to work. led on front does not light up if after depressing on mini switch on front - any further suggestions - will complete your smiley face when I can go no further - please reply

Customer: replied 2 years ago.

PS i replaced the power supply on the computer which was connected to this monitor at the time - pc now works - whole lot belongs to my step son - it appears that pc and monitor both sufferef a similar power surge at the same time

Expert:  Chris R. replied 2 years ago.
Sorry I am just getting your messages. So the computer didn't turn on either? I thought you were dealing with just a dead monitor. It does sound like you had some pretty bad power surge. At least it was just the power supply and not the motherboard and other components. Definitly throw a good surge protector onto the outlet.
Customer: replied 2 years ago.

I have ordered a Belkin power surge protector step son to whom all of this now belongs. Also with the aid of a TV technician from your company I have identified a source of power board replacement tv which I have now ordered. Unfortunately had to pay another fee. Hope this is the fix. With thanks help.

Expert:  Chris R. replied 2 years ago.
I can tell you that the motherboard should be pretty easy to switch out. I don't do these kind of repairs but we had purchased a Samsung TV a while back that came completely dead. A tech came out and replaced the motherboard and I watched him do it. So you should be just fine doing that on your own. We guarantee that you are happy with your service so if you questions about this monitor/TV feel free to respond to either me or one of the TV repair techs in the other categories.

What Customers are Saying:

 
 
 
  • My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed. One Happy Customer
< Previous | Next >
  • My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed. One Happy Customer
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • Frederick S

    Frederick S

    Computer Specialist

    Satisfied Customers:

    51
    Computer technician; founder of a home PC repair company.
< Previous | Next >
  • http://ww2.justanswer.com/uploads/FS/fszcze/2012-6-18_181848_500test.64x64.jpg Frederick S's Avatar

    Frederick S

    Computer Specialist

    Satisfied Customers:

    51
    Computer technician; founder of a home PC repair company.
  • http://ww2.justanswer.com/uploads/SH/Shefin/2012-6-6_17328_1.64x64.jpg Shefin's Avatar

    Shefin

    Computer Hardware Engineer

    Satisfied Customers:

    44
    Working as Tech support specialist with a world famous computer manufacturer
  • http://ww2.justanswer.com/uploads/JE/jessmagz/2012-6-6_18129_jm.64x64.jpg Jess M.'s Avatar

    Jess M.

    Computer Support Specialist

    Satisfied Customers:

    40
    Computer Hardware Support Specialist for more than 10 years
  • http://ww2.justanswer.com/uploads/SE/Seashore2011/2011-12-6_33418_111205223015.64x64.jpg Chris L.'s Avatar

    Chris L.

    Support Specialist

    Satisfied Customers:

    37
    Certified Hardware expert with over 10 years experience.
  • http://ww2.justanswer.com/uploads/SF/sfeehan/2012-10-13_16941_SeanFormal.64x64.jpg Sean Feehan's Avatar

    Sean Feehan

    Computer Repairer

    Satisfied Customers:

    30
    11 years of repair, 3+ in a professional setting
  • http://ww2.justanswer.com/uploads/mike58801/2010-5-24_13250_On-force.jpeg mike58801's Avatar

    mike58801

    Computer Repairer

    Satisfied Customers:

    29
    A+certified IT Tech
  • http://ww2.justanswer.com/uploads/RO/rosslamon/2012-5-31_221218_me.64x64.jpg jrlamon's Avatar

    jrlamon

    Computer Enthusiast

    Satisfied Customers:

    26
    I've had a job in computer related fields since I was 16 years old. I'm 24 now and am still highly involved in the field.