Sharp LC-46SB54U Keeps losing picture intermittantly

Sharp TV - Flashing OPC & Power Lights - YouTube

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Jul 1, 2011 - Uploaded by Tweetssun
Sharp Aquos TV flashing a OPC & Power Lights in a pattern of 3 flashes, ... Sharp Aquos LC-32D44 - One blink lamp error - Nopicture or sound - Diagnosis ... Repairing Flat Screen TV - Blacked out with blinking red light ...Missing: 32dv22u

Sharp lcd tv power button flashing - HDTV - Streaming Video & TVs ...

www.tomsguide.com/forum/54708-4-sharp-power-button-flashing

Feb 8, 2012 - 7 posts - ‎3 authors
We have owned a Sharp 32" LCD TV for about two years. ... However a quick Bing search shows that the blinking green light usually means a bad power board, which seems ... No picture, no sound, just a black screen and two blinking green ... a cable surge block on the coax where it comes into the house. Sharp lcd tv power button flashing - Digital TV
19 posts
Oct 14, 2012
Sharp hd tv blinking power no picture - Digital TV
2 posts
Jan 7, 2012
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Missing: 32dv22u

Sharp Aquos LC 42DH77: Inverter, Backlight, Power and ...

www.normsweb.com/tektips/42dh77.shtml

This tv the tv Tuner signal board have intermittent interlacing scanning freqencies problem.Tv is new,u just bought this tv wright,return it get another one for the replacement.

You can get the manual on the link below.

http://www.managemylife.com/mmh/owner_manuals/27636/SHARP-LCD-Television-L0805212?brand_name_search=sharp+LC-46SB54U

Good Luck

could be the memory chip, I used to see this a lot with Panasonic tv's that would lose all memory settings ie channel and tuning memory, with the intermittent vol problem it sounds like dry joints in the amp section, always check the components around the heatsinks for dry joints, especially capacitors and transisters, pay to get your hands on a service manual showing all the layout and different componets.

Part Number NOTE Description Product Note Substitute Part n/a Total Availability 0 Estimated Ship Date no longer available

check the oscillator

It sounds like it is loseing signal, check your connections, and make sure you have the correct cable

little sound for sharp lc-46sb54u

is the backlight staying lit even with the picture out? I had the same problem with my Aquos LC32DA5U my backlight was always on but no picture at all, just a lit up black screen, the problem is the LCD controller, I replaced that and it's perfect now.

Yes it is a temp problem as you found out for your self Great call on that BUD.. the best thing to do is contact sharp to see if they have had simular problems and if there are any recalls on this model . If not they will instruct you where to send the monitor into to be fixed.