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LCD TVs - LED

Noblex 32lc831ht LCD does not turn on

saavedra_als
hace 5 años
hace 5 años
How are you I have this lcd, that when I turn it on, the screen flickers a second, the red standby LED turns green and that's it. does not respond to want to turn it off or anything else. Physically nothing is noticeable, check and change several capacitors of the source but remain the same. I already saw in the forum colleagues with the same problem and they didn't solve it. If anyone could resolve, I would appreciate your comments and / or guidance. Thanks in advance
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Victor E
Victor E
Victor E
65.783
hace 5 años

reflow

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saavedra_als
hace 5 años

I tell you that
solve several source components. Change capacitors out of value.
connect everything to try and all the same.
reading in another forum that I don't remember, a technician recommended heating the print area and then turning on
I heated with the heat gun in the back.
and to my surprise, it turned on and works everything.
I have it trying.
but I would like if anyone has any idea what triggered all this, explain it to me.
also so that there is a record of the fault for those who consult.
I have them aware of what happens
Cheers

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Victor E
Victor E
Victor E
65.783
hace 5 años
hace 5 años
I told him at the outset that he was missing a reflow, the microphone was desoldered or with false contacts. You have to try it to see if it looks good and does not repeat the fault again. greetings
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saavedra_als
hace 5 años

aahhh !! I had not understood you.
I'm going to try it and if it goes well I give you as a solution
thanks

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saavedra_als
hace 5 años

I comment. I did the reflow procedure but it doesn't lift.
Only if I give it heat and turn on at that moment everything works fine.
but as soon as I turn off and the continuous fault cools.
What else can I try?
thanks

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Victor E
Victor E
Victor E
65.783
hace 5 años

do a reballing, if you do not know how to do it to a colleague or last if you should not change the mic, greetings

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saavedra_als
hace 5 años

barbarian! I'm going to try the proposed solution, then comment the results

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Victor E
Victor E
Victor E
65.783
hace 5 años

Ok, greetings.

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saavedra_als
hace 5 años

good. I tell you that the solution is what the colleague Victor gave.
I do not have the tool to do reballing so I will look for who does it
thanks Victor for your help
cdoy for solved the issue

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Victor E
Victor E
Victor E
65.783
hace 5 años

Ok, greetings

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