Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
hello Davi, any chance to check with " protection Esclusion "
thanks in advace
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
i also read few forum as well watch few video, most case they
power up TV directly go with 1 short +1 long blink tv dosen't start at all as well no rebooting sign etc.
here in my case rebooting is main issue only sometimes it goes (1 hort +1 long) blink that's bit confusing part,
but now i will strip LED and check during this week,
btw is there anyway i can test backlight LED strip individually without opening sandwich (LCD+backlight tray ) ???Last edited by nilesh; 09-16-2018, 12:09 PM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
based on service manual
1 fast - 1 slow blink is error for one of led strip or few led down on led stripe,
i don't mind to stripe screen and check all LED stripe but it will be last option because
when tv works normally i don't see any spot or dull backlight on screen , everything works perfect, but there is chance that only 1-2 led down on stripe won't show that change unless stripe down and check one by one,
but i notice few times whole screen backlight suddenly very mild flickring...Last edited by nilesh; 09-16-2018, 08:42 AM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
thanks for reply yes i want to make sure , thanks
unfortunately TV probelm is still there , jumper improved tv startup time ,
in 5 hours of continueous watching it random reboot it self 5 times,
out of 5 times , 4 time it rebooted it self but 1 time it couldn't reboot and stuck with
(1fast-1slow blink) and stayed like that ,
than i press hold power button on remote control for 15 second to start tv again ,
so i guess ** @$%&**!!* it seems not this optocouplour but...Last edited by nilesh; 09-16-2018, 06:39 AM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
just finished jumper (pic. attached )
and TV is under testing !
one things i notice after i short jumper things notice.
booting is very fast pretty much tv start almost instant before it take almost
45 sec to 1 minute.
it tend to believe me this part was weak or almost on fail status,
TV is under testing .....i will update here after 6-8 hours final concusion
thanks for help !! apriciated...Last edited by nilesh; 09-15-2018, 06:46 PM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
thanks , tonight or tomorrow morning i will
if it works fine , is it ok to leave shorted for few hours till 2-3 days ?? till i get new parts !!
just for curiosity what could serious damage to keep running with jumperd secondory side ??
thanks...
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
Thank you Davi for precautionary alert !! apriciated
yes , previously i solder some IC so i know there dot to count pin 1
although i always take pic. before i unmount older one, i didn't do any mistake on this one too, but seems its just bad piece like my bad luck
but not big deal i already order another , may be 3-5 days i have it .
thanks...
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
stuck with unfortunate issue,
the New part i got seems to be bad,
i chage optocouplar , and tv doesen't start at all
than i put back older one and tv start right away, it tend to believe me that that new part may bad, now quick option is only left to use 47K resister
will be update soon .
BTW my PSU board i can locate R7020 not R7019 ...so need to confirm before i solder resistor !! pic attached !!
thanks in advance. help apriciate...Last edited by nilesh; 09-14-2018, 10:53 AM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
stuck with unfortunate issue,
the New part i got seems to be bad,
i chage optocouplar , and tv doesen't start at all
than i put back older one and tv start right away, it tend to believe me that that new part may bad, now quick option is only left to use 47K resister. will be update soon , thanksLast edited by nilesh; 09-14-2018, 10:27 AM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
yes Davi,
you are right , previously i throw so many , but when you exactly need that time you don't have, in North america is consumer idology ,to find PCB part or fix/repair PCB is like fixing setellite , 99% people says throw TV or best case buy used PSU board ebay , only 3% case some shops or hobbiest like me try and learn before spent money on new TV . here they convience people to throw stuff and buy as well push them to forget to read or self learning skill top of that get access to parts...Last edited by nilesh; 09-13-2018, 03:35 AM.
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
sorry for delayed response,
badly stuck in job, as well i am in canada so very backword country
PC123 optocoupler not available , so order online its $2 part but no choice ...
once i fix i will update ..seems bit be bit delay !!
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Re: my SHARP LC-40LE810UN has issue help needed to find and fix.
unfortunately i can't open TV today , its completely off from my mind , that we have labourday Holiday today , so everthing is closed i can't get parts means tomorrow i will get this optocoupler PC123 (made by sharp) by wed or thrusday i will make some progress.
thank you for help
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