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my tv turns on then within 1-10 seconds shuts off again its

Customer Question
really anoying what do i...
my tv turns on then within 1-10 seconds shuts off again its really anoying what do i do
it is only a little over a year old
Submitted: 8 years ago.Category: Consumer Electronics
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Answered in 5 minutes by:
6/13/2009
Electronics Technician: Mark, Technician replied 8 years ago
Mark
Mark, Technician
Category: Consumer Electronics
Satisfied Customers: 298
Experience: 6+ years of experience repairing digital/analog electronics equipment
Verified
Hello,

Thank you for asking your question on JustAnswer.

The problem seems to be with the capacitors on the circuit board. I recommend a reset. Switch off and disconnect it from power supply/batteries. Also disconnect any other units connected to it. Leave this disconnected for 30 minutes. All the electric charges stored should drain out.. It should do a soft reset itself, then restart it.

If this doesnt solve your problem then a component on circuit board will need replacement..most likely capacitors have gone bad and cant hold charge anymore..If individual components are not available the whole circuit board will need replacement.

I would not suggest you not to do more experiment with the device... As it may cause more damage to the circuit board...

You can try to call manufacturer and see if they will take/repair the unit. or they will be able to give you a quote for repair. You can find the contact phone number in the manual..

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Customer reply replied 8 years ago
This did not work any other ideas
Electronics Technician: Dan, Master Electronic Technician replied 8 years ago
Dan
Dan, Master Electronic Technician
Category: Consumer Electronics
Satisfied Customers: 1,904
Experience: Over 40 years experience in the service and repair of all types of electronic equipment.
Verified
GreetingsCustomer please disregard the prior expert's answer since they are not qualified to answer TV questions.

Can you provide the brand and model number?

Dan
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Customer reply replied 8 years ago
It is a Sylvania Model LC370SS8
Electronics Technician: Dan, Master Electronic Technician replied 8 years ago
Unfortunately, for this model TV, due to the fact that there can be several causes, there is no one single reason for it to go into a protective shutdown mode. The power supplies in these and most other TV's will recognize when there is an overvoltage or overcurrent situation and shutdown to prevent any further damage. I have had a few in my shop and have seen problems in the inverter circuit and the power supply. It will take someone with the proper technical background, the proper equipment and a service manual to properly diagnose just where the problem is. The only other option is to purchase circuit boards to replace the ones in the TV one at a time, which is economically unfeasible.

I have the service manual in my shop database that I can upload to my off-site storage and make available to you if you feel you can use it. Let me know.

Dan
Dan
Dan, Master Electronic Technician
Category: Consumer Electronics
Satisfied Customers: 1,904
Experience: Over 40 years experience in the service and repair of all types of electronic equipment.
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