Sharp tv blink codes manual#

X-Ray glasses to see if any CCFL bulb(s) inside the panel are broken. Right now, the power remains on solid, responds to the Power button on the side and the remote. Beyond that, how can one assess the wellbeing of the inverters? (Can I measure output to the lamps, and/or what else should I look for?) And, how would I diagnose a bad fluorescent lamp (ohmmeter?), and how would one swap it if one locates a defective one (of the 22)? (Not sure what the easiest way to get at them is.) Also, I can't always force the backlight on again using said 'clearing' sequence. Left and right top ones on this chassis have good fuses, solid 60 and 12vdc supplies, and I see no shorts on the FETs. The 4 inverters are barely mentioned in the manual, no schematics. I'm a retired EET who's most recently worked on CRT TVs, so not that familiar with the backlight thing and lcd displays, other than I've swapped one in a laptop lately. However, when clearing by holding ch_down and vol_up while applying power, occasionally I get a subdued backlight and can vaguely see the 'hdmi' info box on the upper right-hand corner of the screen, and the entire raster (perhaps with blank horizontal stripes, if I recall correctly) flash a few times before going black, and eventually back to the 1-blink error code.

Sharp tv blink codes manual#

I'm getting no backlight for the most part, and generally a 1-blink error code on the power indicator led, which, according to the service manual is a lamp failure. This seems like one of the likeliest places to get some info on a Sharp LC-46D64U I've been working on.