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 Pete Your Own Question

Pete
Pete, Engineer
Category: Electronics
Satisfied Customers: 16876
Experience:  Over 16 years of experience in the Electronics and IT industries.
30970729
Type Your Electronics Question Here...
Pete is online now

I have a Samsung smart TV type number UE46D7000. I has developed

Resolved Question:

I have a Samsung smart TV type number UE46D7000. I has developed a very annoying fault. It repeatedly switches itself on and off.
I have noticed that this happens most when I switch inputs from TV to HDMI1/DV1 which is connected to the Sky box.
It normally calms down and stops going on and off after about 2 hours!
When watching the TV with TV as the source it very rarely occurs but it does sometimes.
Can you please help.
We are very pleased with the Tv in every other respect.
Regards,
Howard Dodd
Submitted: 2 years ago.
Category: Electronics
Expert:  Pete replied 2 years ago.
Hi Howard,
Does both the picture and audio turn off when the problem occurs?
Customer: replied 2 years ago.

Yes, the TV switches off completely - no sound or pictures - but switches itself back on within a couple of seconds.

Expert:  Pete replied 2 years ago.
Hi Howard,
If it affects different devices, even after changing HDMI cables, then this problem is most likely caused by a fault on the main Logic board inside the TV, and the board will need to be replaced.
If the TV is still under warranty then you can return it to the retailer to have the board replaced.
Customer: replied 2 years ago.

The TV is just out of warranty and Samsung have already said that I will have to pay for any repair.

If the logic board was defective wouldn't this also affect the TV when tuned in to the TV's own input - i.e when set to "TV"?

How easy is it to replace the logic board? I have taken laptops apart in the past to replace various modules./ Would this require a similar level of expertise?

Where can I buy a replacement logic board?

Any idea of typical cost/

Thanks

Howard

Expert:  Pete replied 2 years ago.
Hi Howard,
There are different parts of the logic board circuitry, which allow it to process the various input signals, and only one part appears to be defective according to your symptoms.
This would indeed be similar to taking apart a laptop, or perhaps even easier, but first:
How old is the TV?
You are automatically covered for a minimum of 2 years if you bought it anywhere in the EU, and under the UK Sale of Goods Act, you are covered for up to 6 years if you can prove it is a manufacturing fault, which it obviously is. See:
http://www.thisismoney.co.uk/money/bills/article-1677034/Two-year-warranty-EU-law.html
Customer: replied 2 years ago.

Thanks for this suggestion.

I bought the TV almost 4 years ago on 2nd August 2011, so it is well beyond the warranty period.

I could try the EU legislation but this will probably involve a very drawn out period of negotiation during which time I live with the TV that is driving me mad! It may be easier simply to replace the Logic Board.

Any suggestions how I could purchase the right one? Or is this likely to be available to 'authorised' repairers only?

Thanks,

Howard

Expert:  Pete replied 2 years ago.
Hi Howard,
The board can be obtained from a number of sources:
https://flattvparts.co.uk/samsung
www.ebay.co.uk
Check the part number imprinted on the existing board to ensure you get the correct replacement.
Pete, Engineer
Category: Electronics
Satisfied Customers: 16876
Experience: Over 16 years of experience in the Electronics and IT industries.
Pete and other Electronics Specialists are ready to help you

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:

 
 
 
  • Eng. Andres

    Eng. Andres

    Engineer

    Satisfied Customers:

    68
    Electronic Eng. Electronics Specialist. Circuit designer
< Previous | Next >
  • http://ww2.justanswer.com/uploads/RA/ratonxi/2012-1-3_151146_1.64x64.png Eng. Andres's Avatar

    Eng. Andres

    Engineer

    Satisfied Customers:

    68
    Electronic Eng. Electronics Specialist. Circuit designer
  • http://ww2.justanswer.com/uploads/JO/JonTech/2011-10-25_111835_A2c.64x64.jpg Jon-Tech's Avatar

    Jon-Tech

    Technician

    Satisfied Customers:

    1
    ASET Electronics
  • http://ww2.justanswer.com/uploads/ET/eter/2016-7-21_174524_pete.64x64.jpg Pete's Avatar

    Pete

    Engineer

    Satisfied Customers:

    795
    Over 16 years of experience in the Electronics and IT industries.
  • http://ww2.justanswer.com/uploads/SH/ShahidSony/2013-9-1_3122_Shahidb1a.64x64.jpg Shahid's Avatar

    Shahid

    Technician

    Satisfied Customers:

    611
    I have been repairing electronic gear since 1993 as a qualified Sony tech
  • http://ww2.justanswer.com/uploads/SE/SelectTronix/2013-12-28_22514_clrepair.64x64.jpg Carl L's Avatar

    Carl L

    Technician

    Satisfied Customers:

    68
    13+ Years of Computer and Electronics Experience. Current Company Owner as an IT Specialist in FL.
  • http://ww2.justanswer.com/uploads/ZB/zbkai189/2013-8-23_0421_Untitled.64x64.jpg Dan T.'s Avatar

    Dan T.

    Master Technician

    Satisfied Customers:

    8
    USAF trained; currently teaching electronics for the DoD.
  • http://ww2.justanswer.com/uploads/SI/simitpatel/2013-8-22_6857_simit.64x64.jpg simitpatel's Avatar

    simitpatel

    Customer Service

    Satisfied Customers:

    6
    I have 10 years working with electronics.
 
 
 

Related Electronics Questions