I recently came across this Sharp AQUOS. It appears that there is a backlight issue (see picture). Any advice on going about repairing this?
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Re: sharp aquos lc-60le640u Backlight
Possibly top and bottom edge lit and some of the bottom leds have failed.
https://tinyurl.com/y9ldzf9bLast edited by dick_barton; 05-26-2020, 03:57 PM.Willing to help but I'm no expert. -
Re: sharp aquos lc-60le640u Backlight
That’s my thoughts. I have LEDs from a Sharp 70” that work. Just have to figure out how to go about replacing them.Comment
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Willing to help but I'm no expert.Comment
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Re: sharp aquos lc-60le640u Backlight
The led "strips" are at the bottom and are different between the 60" & 70". The 60" uses two, bottom left & right, and the 70" uses three bottom left, middle, right.Comment
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Re: sharp aquos lc-60le640u Backlight
What ever you do, make sure the LED strips are made for your LCD panel model number.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: sharp aquos lc-60le640u Backlight
Was it replacing individual leds that you are referring to?Comment
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Re: sharp aquos lc-60le640u Backlight
I wish that I could replace individual LEDs, but I was referring to the strips.Comment
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Re: sharp aquos lc-60le640u Backlight
Turn the backlights down to increase the lifespan of the leds. It may have been one of the led connections has a poor contact rather than a led gone. Time will tell.Willing to help but I'm no expert.Comment
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this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even... -
Hello, I have an "ASUS ROG Strix G713QR" laptop, and for approx. 3 months I have the following problems:
1. Laptop keyboard doesn't work
2. The backlight on the laptop keyboard doesn't work
3. The x2 side LEDs (red) on the laptop don't work
The power button works, the touchpad works, and all the USB, HDMI, Ethernet, etc. ports work.
I already tried to reinstall all the drivers and reinstall Windows. So I don't know what to try anymore that is software-related.
But I am strongly aiming that it is somehow a BIOS-related problem,... -
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Based on this yt video, I have narrowed it down to an issue (short?) on the left side of the display, somewhere in the system of ribbon cables.
when I remove the bezel and the rear cover, I can get the image to display correctly by manipulating the ribbon cables on the left side which connects the left lower display... -
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