Question about Televison & Video
Sorry to tell you this but your problem is probably not a blown fuse.
All later sets are using a much more efficient but less reliable type of power supply called a 'switched mode power supply.'
If only the best components of a certain type are used they are reliable and even with cheap parts, PC supplies use this principle and can live quite long.
I'll paste below some things you can do:
The assembly that most affects these audio and video equally is the power supply and this is a common failure in all too many of more recently built TVs.
The supply is normally built on a separate board since these are often out-sourced by set manufacturers.
Unplug your set overnight to allow potentially hazardous voltages to discharge, remove the back panel of the set so you can see the guts.
Look for a smaller board with larger parts on it; some cylindrical (capacitors), others block-like and relatively large (chokes and transformers).
You should also see a relationship between the board and the incoming AC.
Check the board for a label or if not present, a stamped-on number.
Call the manufacturer's service center with your TV model number and the number found on that board and inquire about repair/replacement costs; if both are offered, they won't be that much different.
If you must buy a new board, don't dispose of the failed one as there are smaller companies that can repair it for less than the mfr. and then keep it as a spare as this problem will likely arise again.
Posted on Oct 04, 2009
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Posted on Jan 02, 2017
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