Sharp LC-60LE810UN

[jbblackbird]

I was just given this set because it had been reported irreparable. So of course being a DIY'er I want to repair it! I have read a couple of threads dealing with this set, and have already tried the error code reset using the vol- and ch+ while plugging set in, I have also tried input, vol- and ch+ but neither of those techniques work for me. The problem I have is the short blink, long blink error. I am fully prepared to take this set apart to the barebones and attempt to test the led's contained within. But I need help doing this, what do i need to test with? Will this do:
http://www.ebay.com/itm/600W-DC-Boos...item2c73195d6c
and if so is there a tutorial of how to connect it to the led strips?

[jbblackbird]

Re: Sharp LC-60LE810UN

*Bump

[truep]

Re: Sharp LC-60LE810UN

We need pictures and symptoms!

[jbblackbird]

Re: Sharp LC-60LE810UN

error code is 1-1 tv doesnt power on. I have taken apart all the way down to the screen and have tested the LED's found the bad one and removed it. Now is there a diode i need to replace it with? or an original led available somewhere?

[tibimakai]

Re: Sharp LC-60LE810UN

It has a part number?

[Ltank]

Re: Sharp LC-60LE810UN

I work on led last. Check to see if you have 5vdc standby. Then jumper p.s. on with a 500 to 1000 ohm resistor. Jump the 5vdc to PS_on. Do you get any voltages? Do you get a backlight? If you can jump p.s. on and backlight. Most likely it's a main board problem.

[Ltank]

Re: Sharp LC-60LE810UN

Check dc across the larger main filter capacitors. Should be about 390vdc. If only 10 vdc power supply is not turning on or has a PIC problem

[tibimakai]

Re: Sharp LC-60LE810UN

Since he has a blinking LED error code, he has standby voltage.

[jbblackbird]

Re: Sharp LC-60LE810UN

Ok no one answered my question. What should I do to replace the bad led? Do I bridge led location 1 with led location 3 because the polarity is the same? Do I replace led with diode? What do I do at this point? I would like to get the screen back together and out of the way. Lets just assume main and power board are good.

[RCA2000]

Re: Sharp LC-60LE810UN

If you are unable to get a replacement LED_-then jump it with a 1N4004 or so diode--to take up the drop in the series string. Make SURE of proper polarity--and put the anode of the diode--on the positive side of the string's supply line. If all other LED's work ok after that is is NOT likely--the missing LED will be noticed much--if at all.

I MAY have one just like to do--with the same problem--myself. How hard was it--to disassemble this panel, and are the LED strips accessible--without pulling the panel out of the shell--such as are they along the edge of the panel--or are they behind it?

[jbblackbird]

Re: Sharp LC-60LE810UN

Dis-assembly wasn't bad. Just have to remember where everything goes. I kept screws for the screen totally separate from all others, and made sure I kept a log of where things came from and where they go back. Are you saying that with diode in place that it is unlikely the rest of the led's will work. OR are you saying with diode in place that it is likely I will not have anymore problems out of the LED's?

[jbblackbird]

Re: Sharp LC-60LE810UN

Also from what I have read here, I calculate that every led takes about 3.??? volts. The diode you suggested is only 1.1v will this be ok? Also does anyone know where I can get one of these from in the states. I found the smd kind on ebay but nowhere in the states. I checked digikey and mats and found nothing.

[tibimakai]

Re: Sharp LC-60LE810UN

You can't find a LED like that on Digikey?

[budm]

Re: Sharp LC-60LE810UN

You will need at least 4 or 5 1N4xxxx connected in series to simulate white LED Vf of about 3~4V range.
The diode will get quite warm to touch so I would do it for testing only.
https://www.badcaps.net/forum/showpo...&postcount=107

[RCA2000]

Re: Sharp LC-60LE810UN

Dis-assembly wasn't bad. Just have to remember where everything goes. I kept screws for the screen totally separate from all others, and made sure I kept a log of where things came from and where they go back. Are you saying that with diode in place that it is unlikely the rest of the led's will work. OR are you saying with diode in place that it is likely I will not have anymore problems out of the LED's?

With one or maybe 3 diodes in series--to drop the required voltage--IF the other LED's are ok--then it should then work ok.

Once again--are the LED's behind the panel--or on the outer edge of it?

[jbblackbird]

Re: Sharp LC-60LE810UN

They are on the outer edge.

[jbblackbird]

Re: Sharp LC-60LE810UN

Ok I have ordered this led and am waiting for it to come in:
http://www.digikey.com/product-detai...8-1-ND/4814765
Im thinking that this should work because it is 3.8v

[budm]

Re: Sharp LC-60LE810UN

It is also rated at 700mA which is good, so let us know how it works out.

[mu2]

Re: Sharp LC-60LE810UN

Hi,

I was just curious if you had any update on the Digikey led.
Did it work as a replacement?
There is a 70" Sharp at the local recycler that has the same screen issue and most likely has bad edge leds.

Thanks,
Mike

[kc8adu]

Re: Sharp LC-60LE810UN

thats a generic 3535 mid power at 7500-8000k.
the one you linked may or may not fit the pads.color temp will be pure white on the one you linked.7500+ k will look strongly to the bluish-purplish side.and it may or may not be noticeable for one led being off tint.but if it sits right on the pads it will work.