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Ask Shahid Your Own Question
Shahid, Technician
Category: TV
Satisfied Customers: 9380
Experience:  I have been repairing electronic gear since 1993 as a qualified Sony tech
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Chevron has two flashing lights then 5 flashes, 2013 Sharp

Customer Question

chevron has two flashing lights then 5 flashes
JA: What's the model number of your TV? How old is it?
Customer: 2013 Sharp SHARP LC-70LE755U
JA: Does the TV menu work? Do you have the same problem on all sources/inputs?
Customer: screen black
JA: How long has this been an issue? What happened right before this popped up?
Customer: nothing used normally. One morning did not turn on
JA: Anything else you want the TV expert to know before I connect you?
Customer: I replaced the power board and problem still exists
Submitted: 2 months ago.
Category: TV
Expert:  Shahid replied 2 months ago.

Hello, I'm Shahid. Sorry to hear that you're having trouble with this but I'll do my best to help. Please reply back when you're ready to proceed.
Thank you.

Customer: replied 2 months ago.
Customer: replied 2 months ago.
The sharp tv seems to be faultering
Expert:  Shahid replied 2 months ago.

I understand, so only the power supply board replaced in TV, correct?

Customer: replied 2 months ago.
Expert:  Shahid replied 2 months ago.

2-5 power light flashing is an error code that indicates panel volts failure, this kind of problem occurs if either t-con board isn't getting 12V supply from power board or t-con board itself has got internal failure.

T-con board is located at lower middle of rear of TV and two flat ribbon cables from t-con board go inside the screen.

We need to check 12V at t-con board with multimeter while turning TV power On. If 12V is available even for a second then replace t-con board in TV to resolve the problem.

Please note that replacement t-con board should be identical to old t-con board found in TV as different version/ part number t-con board will not work. I hope these info will help. If you have any additional questions, feel free to ask. If you're satisfied, please rate me a 5-star at the top of your page.
Thank you.

Expert:  Shahid replied 2 months ago.

Do you need any further assistance with this question?