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I have a Toshiba model 40L3I0U Serial # F19A00MA054902 that…

Customer Question
Hello, I have a...

Hello, I have a Toshiba model 40L3I0U Serial # F19A00MA054902 that "blinks" every 4 seconds or so (black then picture then black) any suggestions ?

Technician's Assistant: What device or product does this involve?

TV

Technician's Assistant: What's the brand and model number of your TV? How old is it?

Brand is Toshiba and Model number is *****

Technician's Assistant: Does the TV menu work? Do you have the same problem on all sources/inputs?

Yes the tv menu works doesn't seem to matter what it is hooked up to - does the same thing when attached to cable box or when attached to a PS4 game box. - starts out okay and as it warms up or is on for a bit it starts to blink more frequently

Technician's Assistant: How long has this been an issue with your 40L310U? What happened right before this?

For about two months now - am tired of watching it blink. had cable company out several times thinking it was the cable but it was not

Technician's Assistant: Anything else you want the TV Expert to know before I connect you?

Nothing happened to it previously that I know of . . .

Submitted: 2 months ago.Category: TV
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Answered in 5 minutes by:
3/29/2018
TV Technician: Anthony_Infotech, Technician replied 2 months ago
Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 16,112
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS
Verified

Hello
Welcome
I am sorry you are having trouble here,I am presently reviewing your question be with you very soon.

Anthony

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TV Technician: Anthony_Infotech, Technician replied 2 months ago

If you press the menu button of the sets OWN remote control does that blink too?or does this stay normal?

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Customer reply replied 2 months ago
No , blinking as of yet but it has been off for a while
TV Technician: Anthony_Infotech, Technician replied 2 months ago

OK well you need to do that check when its blinking and let me know

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Customer reply replied 2 months ago
I am there is no blinking while on menu
TV Technician: Anthony_Infotech, Technician replied 2 months ago

In that case it must be the box bad as its the signal you are losing ,the menu proves that,try this>>

Can you please reboot the TV and any satellite or cable box by un-plugging both from wall-power wait 5 mins then re-plug back in again,let me know if there is any change please
Anthony

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Customer reply replied 2 months ago
Hi, I have had comcast check several times with multiple home visits - it is not my cable box or anything other that this particular tv.
TV Technician: Anthony_Infotech, Technician replied 2 months ago

But the menu stays up and the picture blinks in the background?menu does not blink?

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TV Technician: Anthony_Infotech, Technician replied 2 months ago

Look you must do this check and not guess

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TV Technician: Anthony_Infotech, Technician replied 2 months ago

It just leads to a wrong diagnosis

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Customer reply replied 2 months ago
I have multiple times - thank you for your time.
TV Technician: Anthony_Infotech, Technician replied 2 months ago

So it stays up in that case it basically rules out the set ,you can further verify that simply by trying another input like a DVD player or bluray if THAT is OK then TV is OK by at least 95%

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TV Technician: Anthony_Infotech, Technician replied 2 months ago

And if you try the same INPUT as the box with ANOTHER input then the odds get even shorter of it being the TV

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TV Technician: Anthony_Infotech, Technician replied 2 months ago

Let me know how that check works out please

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TV Technician: Anthony_Infotech, Technician replied 2 months ago

Let me know how this is working out please

A positive rating is appreciated thank you (rating bar of stars top of the page thank you) 3 to 5 stars and the site will release a payment to me thank you.
Regards
Anthony

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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