Sharp LC60C6400U - 2 long binks, 5 short blinks error code

[budm]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

What value should NUR460 on my board be when I test it with multimeter? Should I test it when the set is off or on? Leaning towards this part as failing as it is reading 0V on both ends, but I see a slight flutter on the reading, but it settles at 0V.

Is the PFC Voltage booster not working? Is that why you are checking the PFC section?

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code



What value should NUR460 on my board be when I test it with multimeter? Should I test it when the set is off or on? Leaning towards this part as failing as it is reading 0V on both ends, but I see a slight flutter on the reading, but it settles at 0V.

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Thank you nomoresonys. Are Sonys that tough to work on you've sworn them off?

Also just re-tested my voltages on the KIA378R12PI which is what I originally thought was the problem, now not so certain. But the final peg reads 2.68

It originally read 2.5V so I'm worried it's broken now possibly causing this fussy fault-finding set to throw a tantrum over turning on. I'd like to know the jump technique - I haven't been able to jump the feet on the regulator myself, not sure what I'm doing there even though I've read the threads about it...

[nomoresonys]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

https://www.youtube.com/watch?v=eEJoPCa7Kt0

[nomoresonys]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

https://www.youtube.com/watch?v=YLAVfokdcSU

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

I've got the tv totally apart now and can see all the leds. They all look perfect. All I have to test them with is 2 AAA batteries but I'm not having luck. Does anyone have any other ideas?

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Yes that's the year I think. So I just inspected all the tabs on the left side, then the right side I saw no burned IC on either of them, so I'm ruling that out for now. My suspicion now is that it is indeed one or two burned out LEDS.

https://www.youtube.com/watch?v=c0Kv5ZTuGb0

This video shows led strip with the 2-5 error code which is possible after all.

[RJARRRPCGP]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Looks like my next option is to follow https://www.badcaps.net/forum/showthread.php?t=48477

I'm going to remove the outer frame and take a look CAREFULLY at all the flex tabs, if I see a burn mark on one, I assume I will have to cut all the tabs from that side. freaafter8 had success with a 70" doing this.

Most likely, with 2010s' Sharp, especially a mid/middish-2010s' Sharp!

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Looks like my next option is to follow https://www.badcaps.net/forum/showthread.php?t=48477

I'm going to remove the outer frame and take a look CAREFULLY at all the flex tabs, if I see a burn mark on one, I assume I will have to cut all the tabs from that side. freaafter8 had success with a 70" doing this.

[RJARRRPCGP]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

In this thread https://www.badcaps.net/forum/showthread.php?t=63390

BUDM suggests that the regulator is fine, but something is not letting it turn on normally, so Redrebel puts a resistor on one of the leads and attaches to a ground screw. Would this be worth attempting?

I dunno.

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

In this thread https://www.badcaps.net/forum/showthread.php?t=63390

BUDM suggests that the regulator is fine, but something is not letting it turn on normally, so Redrebel puts a resistor on one of the leads and attaches to a ground screw. Would this be worth attempting?

[RJARRRPCGP]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Oh man. Hisense is hot trash. The picture on this set is great. Most Hisense models get lines after a year.

That was before Hisense bought the Sharp TV division, IIHC.

And lines after one year? Ooofff! That's worse than that LG 49UH6100 upstairs in my sister's bedroom, which seems to have a writing on the wall that there's at least shitty LEDs!

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Oh man. Hisense is hot trash. The picture on this set is great. Most Hisense models get lines after a year.

[RJARRRPCGP]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

The LCLExxxxxx, is the series that apparently led to Sharp selling their TV business to Hisense!

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

I'm just going to start testing and posting the values

R7305:
Top 4.99V
Bottom: 0V

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

After looking up repair kits for this model that solve the 2 - 5 blink code, I saw some 100k ohm resistors for the kit as well as the KIA378R12PI regulator. Should I be checking these next. Also which ones do I check and what value should they be at?

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

That's bad news. I did the removal of the tcon cables a couple of times, but no backlight will come on. So after sifting through the thread I've come to the conclusion that the 2 - 5 blink pattern seems to be a catch all for whatever issue ranging from power board to panel failure. Now I was able to get mine to work after replacing the KIA378R12PI regulator, then have it fail, re-do it and succeed for over 100 hours. When watching the set I noticed no lines, and the image was good. I will try to get it back on to take a picture.

[RJARRRPCGP]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

You likely have a bad panel, Disconnect the T-Con from the panel (Flat cables) and see if the tv comes on with backlight.

QFT, likely a bad panel driver, based on Budwich's posts, IIRC.

https://www.badcaps.net/forum/showthread.php?t=48477

[rievax_60]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

Many LED LCD TVs are left to run at their default backlight setting of 100%.
This must be shortening LED lifespan.

[Noobwithamultimeter]

Re: Sharp LC60C6400U - 2 long binks, 5 short blinks error code

What are the steps to determine failing panel drivers ICs?