Sharp LC-60LE600U won't stay on

[dpolk]

Re: Sharp LC-60LE600U won't stay on

Good call dskall! There are two rows of led strips on the bottom of the tv. Each have 4 wires going into the strip. Half of the left strip was not lighting. Messed with the connector some and the whole strip went out. Held the connector to the board and they all lit up! Looks like I just need to resolder the connector the the LED board.

[budm]

Re: Sharp LC-60LE600U won't stay on

As indicated in my post #17, you have bad reading in one of the strip.

[engelwood39]

Re: Sharp LC-60LE600U won't stay on

Good call dskall! There are two rows of led strips on the bottom of the tv. Each have 4 wires going into the strip. Half of the left strip was not lighting. Messed with the connector some and the whole strip went out. Held the connector to the board and they all lit up! Looks like I just need to resolder the connector the the LED board.

Did you happen to get this issue fixed? I had the exact same thing going on with my same model TV. My resistance values for the LED driver were all about identical except for I was getting the ohm reading off of my negative Leeds instead of my positive. I can't get the screen to flash like you were able to for a split-second unless I unplug half of the t-con board. If I unplug half of the t-con board it will do a split second Flash and it doesn't matter which half is unplugged, both sides unplugged will get the opposite side of the screen to do a quick not even one second Flash.

[kyrinth021883]

Re: Sharp LC-60LE600U won't stay on

Hi! I know this is an older thread, but wanted to share my bit of experience I learned with this same tv. I also just came into possession of a LC-600LE600U, Sharp 60" LED backlit LCD tv. This TV has the same problem. You plug it in, the sharp logo at the bottom front turns on for about 8 or so seconds, the backlights try to fire on for about 1 second, then turn off, and a few second later the sharp logo goes out.

Testing the voltages on the power supply board with the correct jumpers yields good results. Good standby voltage, good 12v, 13v unregulated and other voltages. The only voltage I noticed was different compared to other posts about similar issues with this unit was the ERROR pin. I was getting about 0.1VDC. Whereas, others were getting around 3.5VDC.

I followed along with the troubleshooting in this thread post about the backlight power pins. I find that I have the same issue where one of the 4 (pos/neg) pairs for the LED power was giving a large power spike right as the LEDs come on, then off. Whereas the other 3 were all around 80VDC and stayed there until LEDs came on, then off and the voltages slowly decreased to 0. Since there was one different than the others, I figured this to be the culprit.

I disassembled the rest of the TV to gain access to the LED strips at the bottom (this is a pain in the rear by the way, must be very careful with the LCD glass). Once taken apart and could see the two LED strips across the bottom (one from left to the center, the other from right side to center), I then plugged the TV back in so I could physically see the LED strips. When they turned on for just a second, I could clearly see that one of the two strips only lit up half way across. Half of the strip was not coming on. I disconnected the strip and removed it from the tv. The strips have 68 LEDs on them. Upon closer inspection, it was very hard to spot, but in my case, LED # 28 (number "2-11" as printed on the board), counting from the connector end had a very small brown burnt spot in the center of it, whereas none of the others did. This was the culprit as all the LEDs past that one were working.

So now i am going to search the web to see if I can find this replacement part as it does not look like you can easily replace a single LED on this strip without some special tools that I do not have. (Not to mention, I don't even know the specific part # of the individual LEDs). Not even sure which is the part number of the LED strip. Only #s I can find is a data matrix bar code number on the back "5227ZZ02817UNBAH2642Z905U" and a printed # on the front "E162061".

Hope this info might help someone else with similar issues. Will see what I can come up with and update.

[kyrinth021883]

Re: Sharp LC-60LE600U won't stay on

Some more info found in searching the forum:
https://www.badcaps.net/forum/showthread.php?t=64507

[kyrinth021883]

Re: Sharp LC-60LE600U won't stay on

Seems these are either the same part or a compatible part. 7030PKG 68EA L-TYPE, 7030PKG 68EA R-TYPE (left and right strips)

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

not to hijack this thread but, I have the same issue on the same model lc-60le600u. Igot the tv from my wife's grandmother. they had bought a new one and i said that i'd take, try to fix it. So, same issue....standby light comes on, push the power button on side of tv and the screen blips real quickly and goes black, 15-ish seconds later standby light goes off. except, before I even got the back panel off the tv, i decided to test it out again, the darn thing actually turned on and stay on, even played a dvd while i cleaned up. powered tv off to move it back to its stand and now its doing the same thing it was originally doing. is there anything to that? beings the tv working for a while i just thought there might be something to it. If anyone thinks there is something more to this, please speak up, I will continue to follow the previously mentioned trouble shooting strategies. thank you all so much!

[budm]

Re: Sharp LC-60LE600U won't stay on

not to hijack this thread but, I have the same issue on the same model lc-60le600u. Igot the tv from my wife's grandmother. they had bought a new one and i said that i'd take, try to fix it. So, same issue....standby light comes on, push the power button on side of tv and the screen blips real quickly and goes black, 15-ish seconds later standby light goes off. except, before I even got the back panel off the tv, i decided to test it out again, the darn thing actually turned on and stay on, even played a dvd while i cleaned up. powered tv off to move it back to its stand and now its doing the same thing it was originally doing. is there anything to that? beings the tv working for a while i just thought there might be something to it. If anyone thinks there is something more to this, please speak up, I will continue to follow the previously mentioned trouble shooting strategies. thank you all so much!

No blink error codes?

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

No sir. the only light that comes on is the light blue-ish standby light.

[budm]

Re: Sharp LC-60LE600U won't stay on

No sir. the only light that comes on is the light blue-ish standby light.

If that is the case then you will have to do real good visual inspection of the boards and then start check DCV on a bunch of connectors on the power supply board.
You will get a lot more help if you upload good clear high-res pictures of YOUR boards.

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

I will do that once I get home tonight.

side note; while tv was on and working last night i noticed the very bottom, very left side corner of the screen was a lot darker in color than the rest of the screen. I would estimate the discoloration to be very close to a 6"x4" section that tapered down to the every bottom of the screen.

[budm]

Re: Sharp LC-60LE600U won't stay on

You should take the screen shot to show us what it looks like.

[budwich]

Re: Sharp LC-60LE600U won't stay on

I will do that once I get home tonight.

side note; while tv was on and working last night i noticed the very bottom, very left side corner of the screen was a lot darker in color than the rest of the screen. I would estimate the discoloration to be very close to a 6"x4" section that tapered down to the every bottom of the screen.

not a good sign... potentially a panel issue which can give both the "shut down" symptom and the dark area issue. .... but it can be saved depending on the actual "panel issue".

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

One issue at a time. Ha. I can live with the discoloration. I wasn’t able to do a whole lot on it tonight but I did give all 3 boards on the back panel a thorough once over. I also took pictures of all the serial numbers and tags on all the boards, I’m not 100% positive what kind of pictures you are looking for specifically, but I did take a few very general and broad picture is of the boards. Pics will be up as soon as I figure out how to upload them. Haha

[budm]

Re: Sharp LC-60LE600U won't stay on

not a good sign... potentially a panel issue which can give both the "shut down" symptom and the dark area issue. .... but it can be saved depending on the actual "panel issue".

Yep, that is why I ask for the screen shot.

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

One issue at a time. Ha. I can live with the discoloration. I wasn't able to do a whole lot on it tonight but I did give all 3 boards on the back panel a thorough once over. I also took pictures of all the serial numbers and tags on all the boards, I'm not 100% positive what kind of pictures you are looking for specifically, but I did take a few very general and broad picture is of the boards. Pics will be up as soon as I figure out how to upload them. Haha

these are the very generic and broad pictures of the boards. until I have a little bit better direction and hopefully a little time this weekend, I'll start to make some actual progress troubleshooting this thing. while I was checking out the boards I did not notice anything abnormal as far as burn marks or anything that would lead me to think anything had failed, I checked both sides of all boards.

this set is of the main board

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

these are the very generic and broad pictures of the boards. until I have a little bit better direction and hopefully a little time this weekend, I'll start to make some actual progress troubleshooting this thing. while I was checking out the boards I did not notice anything abnormal as far as burn marks or anything that would lead me to think anything had failed, I checked both sides of all boards.

this set is of the main board

this set of pics is of the T-con board

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

this set of pics is of the T-con board

this set is of the Power Supply

[budwich]

Re: Sharp LC-60LE600U won't stay on

although those picture MAY be useful.... the request for a picture of the screen probably would have saved you a lot of time. Anyways, hopefully you will find a fixable problem. Your "statement" of "one problem at a time" may be a little "naive" as symptoms are usually related. You will find alot of posts / testing of cards and such only to find a panel issue that could readily be determine from pictures of the display. Having said that, this and other threads do deal with issues with the backlighting... which usually needs some measurements from the boards and usually complete disassembly of the panel to fix the backlights.

[Cody_Evanson]

Re: Sharp LC-60LE600U won't stay on

although those picture MAY be useful.... the request for a picture of the screen probably would have saved you a lot of time. Anyways, hopefully you will find a fixable problem. Your "statement" of "one problem at a time" may be a little "naive" as symptoms are usually related. You will find alot of posts / testing of cards and such only to find a panel issue that could readily be determine from pictures of the display. Having said that, this and other threads do deal with issues with the backlighting... which usually needs some measurements from the boards and usually complete disassembly of the panel to fix the backlights.

the screen will no longer turn on, once plugged in and standby light is on, push tv power button, screen quickly blips one time, and instantly turns completely off shortly followed by the standby light. so a picture of a black, powered off screen....how will that help anybody? please correct me if I am wrong here. I know just enough about this stuff to get me in trouble.