Sharp LC-60LE741E 3 Blinks

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Just freeze sprayed mainboard and tv powered up, however I switched it off quickly as mainboard was not mounted and heatsinked.
refitted mainboard and now not powering up so looks like a mainboard is needed for this tv

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

In that case then yes the 5v is there at pin 15 with the mainboard disconnected

[Diah]

Re: Sharp LC-60LE741E 3 Blinks

before you go further and lost try "vol+ & ch-" while plugging in the power. the LED indicator should remain steady keep with black screen.. keep it for awhile then press the power keep press until its goes off. then turn on

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Thanks Diah just tried vol+ & ch- not worked, not powered up

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Not having any luck sourcing a mainboard for this tv yet

[Diah]

Re: Sharp LC-60LE741E 3 Blinks

Not having any luck sourcing a mainboard for this tv yet

power it gain by freezing the eeprom only.. when the screen come on go to setting to make factory reset

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Used all my freeze spray, will try and get some tomorrow and try that Diah

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Pic of my mainboard with the covers removed, looks like I need one of these, but can not find one for sale, any ideas where I may get one

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

tried freezing eeprom tv not powering up this time

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

just warmed mainboard using a hairdriver and tv powered up to a good picture, however before i could get remote to do a factory reset it powered off
Now thinking nothing to loose maybe worth sticking mainboard in the oven for ten minutes

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

As I write this post mainboard is in the oven @ 190C going to give it 10 minutes

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Mainboard cooked and refitted now led 3 flashes has changed to 2 flashes ??

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

I give up on this one

[nomoresonys]

Re: Sharp LC-60LE741E 3 Blinks

I think you need around 220 C.

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Thanks for that nomoresonys I will try it again later at 220 C
May change my name to nomoresharps lol

[nomoresonys]

Re: Sharp LC-60LE741E 3 Blinks

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Baked again at 220 C the 2 flashes has now changed back to 3 flashes and no power up
I need a mainboard and can not find one for sale

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

May be easier to find a 60" smashed screen tv with same screen as this and swap out screens

[Diah]

Re: Sharp LC-60LE741E 3 Blinks

your issue are glitch at firmware ( eeprom ), all user over here only suggust the reset process & freezing could solve temporary to dump eeprom and reflash it on new or at same SIP. not baking cake :-) you still have chance to bring it back to life. don't give up .. write down the SIP No of it

[london-freddie]

Re: Sharp LC-60LE741E 3 Blinks

Tv is all back together, still not working, But I now notice led blinking has changed again to 1 quick flash then 3 slow flashes
Back to google search again for this fault code
I have had 3 slow flashes, then it changed to 2 slow flashes then back to 3 slow flashes and now 1 fast and 3 slow, maybe it will change to 4 flashes tomorrow