I recently came across this Sharp AQUOS. It appears that there is a backlight issue (see picture). Any advice on going about repairing this?
Attached Files
-
-
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
-
Willing to help but I'm no expert.Comment
-
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
-
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
-
Re: sharp aquos lc-60le640u Backlight
Was it replacing individual leds that you are referring to?Comment
-
Re: sharp aquos lc-60le640u Backlight
I wish that I could replace individual LEDs, but I was referring to the strips.Comment
-
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
-
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... -
I have a Sharp Aquos LC-80LE757U that randomly made a loud popping noise when when watching TV one day. We found that the fuse blew and the thermistor. We ended up replacing the entire power supply board and have also replaced the TCON board. Now as soon as I plug the TV in it lights up and has the Sharp logo flashing on and off of the screen. If I unplug the ribbon cable from the TCON board to the main board I get the 2 long 5 short error code. Any ideas on where to go from here? We've tried resetting it but nothing has worked. If we plug it in and let it cycle through the flashing of the Sharp... -
Hello,
I'm looking at a Samsung model ue55nu7096u that I've only ever seen in a non-working condition, i.e. I don't know if the failure was progressive or instant.
Symptoms
No backlight at all — LCD and logic board are working normally. Resetting all settings and installing system updates has no effect.
I tried reseating the connectors between PS and logic board, and PS and panel. No difference there.
I could not find a service manual.
Measurements when powered on
Bulk cap: 388 V. Stable.... -
Need help fixing mums Sharp microwave oven combi.
R-595 (sl)a
Backlight has gone. Can still see digits buy super dim.
Anyone with microwave experience help me out here ? -
Hi all,
I've got an LG Flatron 24EN33TA with a backlight issue. The problem began with the monitor not powering up after sitting for a long time (overnight or during the day throughout work). When I would wake the computer up, the backlight would flick on for a second then go out. Sometimes it would take many tries to get it to come on. Once the monitor came on, it worked flawlessly until another long duration of being powered off.
I thought the problem would be bad caps but I checked both of the caps on the board and they are fine. I also tried powering the monitor from...
Comment