Question about Sharp Televison & Video
If the "contrast" is also turned up, then, the tube is toast and needs replacement. A local repair shop can quote you so you can determine if it's cheaper to purchase a new t.v. or not.
Posted on May 09, 2014
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Posted on Jan 02, 2017
SOURCE: TV No Picture
My 32D40U would turn on for 5-10 seconds (Please Wait would appear) and the screen would go black. Sound Normal. It would also sometimes do this after running 5-10 minutes. I read somewhere that the inverter board would come loose and lose proper ground. I took the set apart, removed the board, and cleaned up the grounding points. I reassembled using some copper paste on the ground points and LockTite on the screws. I used some contact cleaner on all the connectors going to the board. I noticed two cables that are covered with copper shield tape where too tight at their connectors and repositioned the tape to give them some slack. The problem hasn't occurred since the fix.
Posted on Mar 22, 2008
In most cases, you can reset the TV by leaving it unplugged for 30mins.
If this doesn't work, I believe the circuit board that supplies power to the screen maybe bad. They call this board a backlight inverter board. It would most likely cost more to repair than replace the TV .
Posted on May 27, 2009
I've seen this in two scenarios.
First: The housing of the bulb is dirty (the lens the bulb lights onto) and the internal screen is dirty also.
The second: The bulb is wired reversely of the proper way to wire it. This will light the bulb, but will not light as bright as when it is wired correctly!
Thank you and please rate!
Posted on Apr 08, 2011
Tips for a great answer:
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